What is the required thrust force for my application?

Determine the necessary thrust (e.g., 220 N for Ed23 or 6300 N for Ed630/l2) to ensure adequate performance for your specific use.

What is the operating environment's temperature range?

Consider if your environment is below -20°C; heaters might be needed to maintain efficiency.

Do I need additional features such as limit switches or delay valves?

Evaluate if your application requires precise control over ascent/descent times or position indication.

What installation orientation suits my setup?

Decide between vertical or horizontal installation and check compatibility with your system's space constraints.

Ed Series Electro-Hydraulic Thrusters: Complete Guide to DIN 15430 Brake Actuators (220N-6300N)

Ed series electro-hydraulic thrusters deliver 220-6300N thrust with DIN 15430 compliance. F-class insulation, IP65 protection, up to 2000 cycles/hour. Compatible with YWZ4, YWZ8, YWZ9 drum brakes. Request quote today.

Model: Ed23, Ed30, Ed50, Ed80, Ed121, Ed201, Ed301, Ed23/5, Ed30/5, Ed40/4, Ed50/6, Ed70/5, Ed80/6, Ed121/6, Ed201/6, Ed30U, Ed50/l2, Ed80/I2, Ed121/12, Ed201/12, Ed301/12, Ed630/l2
Function: Ed thrusters use a motor-driven centrifugal pump to generate hydraulic pressure, moving a push rod for precise mechanical control.
Application: Ed thrusters are used in brake systems, industrial valves, gates, and clamping devices, providing control for directional movement and mechanical actuation.

Contact Sales Manager

R Heater: Ensures reliable cold-weather startup below -20°C

Ed Series Model Specifications

Select the optimal Ed thruster model based on your required thrust, stroke length, and brake wheel size. All models share the same German-engineered quality and DIN 15430 compliance.

Model	Thrust (N)	Stroke (mm)	Power (W)	Weight (kg)	A × K × L (mm)
Ed 23/5	220	50	165	10	286 × 160 × 80
Ed 30/5	300	50	200	14	370 × 160 × 80
Ed 50/6	500	60	210	21	435 × 190 × 95
Ed 80/6	800	60	330	24	450 × 190 × 95
Ed 121/6	1250	60	330	39	645 × 240 × 112
Ed 201/6	2000	60	450	39	645 × 240 × 112
Ed 301/6	3000	60	550	40	645 × 240 × 112
Ed 80/12	800	120	330	27	530 × 190 × 95
Ed 121/12	1250	120	330	39	705 × 240 × 112
Ed 201/12	2000	120	450	39	705 × 240 × 112
Ed 301/12	3000	120	550	40	705 × 240 × 112
Ed 630/12	6300	120	1100	–	865 × 270 × 127

Note: Custom voltages (400V, 415V, 440V) and 60Hz variants available. Contact our engineering team for explosion-proof BEd series models or special configurations.

How Ed Thrusters Work: The Fail-Safe Principle

The Ed electro-hydraulic thruster operates on a proven principle that makes industrial braking safe and reliable. Understanding this mechanism helps you appreciate why Ed thrusters are trusted in safety-critical applications worldwide.

Brake Release Sequence

Step 1 – Activation: When power is applied, the internal AC motor drives a centrifugal impeller at high speed
Step 2 – Pressure Generation: The spinning impeller creates hydraulic pressure by forcing oil through precision-machined passages
Step 3 – Piston Extension: Hydraulic pressure acts on a precision piston, pushing the push rod outward
Step 4 – Brake Release: The extended push rod overcomes the brake’s main spring force, releasing the brake pads from the drum or disc

Fail-Safe Engagement

The critical safety feature of the Ed thruster is its inherent fail-safe design. When power is removed:

The motor stops and the impeller slows within milliseconds
Hydraulic pressure dissipates instantly as oil flows back through the return path
The brake’s main spring force takes over, pushing the piston and brake mechanism back to the engaged position
The brake engages automatically, safely holding the load without any electrical intervention

This spring-applied, power-released principle ensures that any loss of power—whether from electrical failure, emergency stop, or cable damage—results in immediate, automatic brake engagement. This is why spring-applied hydraulic brakes are mandatory on hoisting mechanisms in crane safety standards worldwide.

Primary Applications

Ed series electro-hydraulic thrusters power braking systems across virtually every industrial sector where lifting, moving, and positioning of heavy loads demands safe, reliable stopping power.

Industrial Drum Brakes

The primary application for Ed thrusters is releasing YWZ4, YWZ8, YWZ9, and other electro-hydraulic drum brake series. The thruster mounts directly to the brake mechanism, providing the linear force needed to compress the spring and release the brake. Compatible brake series include:

YWZ4 Series – Standard industrial drum brake (Ed 23 to Ed 301)
YWZ8 Series – Compact design drum brake (Ed 23 to Ed 201)
YWZ9 Series – Heavy-duty drum brake with wear compensation (Ed 50 to Ed 630)
YWZ13 Series – Port machinery drum brake (Ed 80 to Ed 301)

Industrial Disc Brakes

Ed thrusters also actuate caliper disc brakes including YPZ2, SH, and SDBH series. The high thrust-to-size ratio makes Ed thrusters ideal for disc brake applications where space is constrained but high clamping force is required.

Valve & Gate Control

Beyond braking, Ed thrusters provide precise linear actuation for industrial valves, dampers, and gate mechanisms. The smooth, controlled motion is ideal for flow regulation in water treatment, power generation, and process industries.

Clamping & Positioning

The Ed thruster’s precise positioning capability makes it suitable for mechanical clamping, material handling, and directional positioning applications. With optional limit switches, the thruster can signal position to control systems for automated operation.

Thruster Selection Guide: Matching Ed Models to Brake Sizes

Selecting the correct Ed thruster for your brake depends on three key factors: brake size, required braking torque, and duty cycle. Use this guide to find the right match.

Brake Wheel (mm)	Recommended Thruster	Typical Torque Range
100 – 150	Ed 23/5 or Ed 30/5	100 – 210 N·m
200	Ed 30/5 or Ed 50/6	280 – 400 N·m
300	Ed 50/6 or Ed 80/6	630 – 1000 N·m
400	Ed 80/6 or Ed 121/6	1600 – 2500 N·m
500	Ed 121/6 or Ed 201/6	3150 – 5000 N·m
600	Ed 201/6 or Ed 301/6	6300 – 8000 N·m
700 – 800	Ed 301/6 or Ed 630/12	10000 – 16000 N·m

For high-cycle applications (>600 cycles/hour): Select the next size up to ensure adequate thrust margin and prevent thruster overheating.

For low-temperature environments (<-20°C): Specify the R heater option and consider using higher-viscosity hydraulic oil (IS VG 46 winter grade).

Ed Series vs BEd Explosion-Proof vs YT1: Choosing the Right Thruster

Feature	Ed Series	BEd Series (Explosion-Proof)	YT1 Series
Certification	DIN 15430	Ex d IIC T4, ATEX	JB/T 10603
Environment	Standard industrial	Hazardous areas	Standard industrial
Protection	IP65	IP65, Ex-rated	IP54
Max Thrust	6300N	3000N	3200N
Price Point	Premium	Highest	Economical
Best For	DIN-compliant OEM	Gas/dust hazardous zones	Cost-sensitive retrofit

Choose Ed series when: You need DIN 15430 compliance, premium quality, and maximum configuration flexibility for standard industrial braking applications.

Choose BEd series when: Your application is in Zone 1 or Zone 2 hazardous areas where explosion-proof equipment is mandatory (paint spray booths, chemical plants, grain handling).

Choose YT1 series when: You need a cost-effective alternative for standard applications where DIN compliance is not required, and budget is the primary concern.

Maintenance & Troubleshooting

Ed series thrusters are designed for maintenance-free operation, but periodic inspection ensures long service life and prevents unexpected downtime.

Regular Inspection Schedule

Monthly: Visual inspection for oil leaks, verify mounting bolts are tight
Quarterly: Check push rod for scoring or corrosion, verify electrical connections
Annually: Measure extension speed (should be 0.5-2 seconds depending on model), check limit switch operation
Every 2-3 years: Oil change using specified hydraulic oil (IS VG 32 or equivalent)

Common Issues & Solutions

Symptom	Possible Cause	Solution
Thruster won’t release	No power, motor failure, low oil	Check power supply, test motor resistance, add oil if needed
Slow release action	Clogged filter, worn seals, cold oil	Replace oil filter, check seals, use winter-grade oil
Oil leakage around push rod	Worn rod seal	Replace seal kit, inspect push rod surface
Excessive noise/vibration	Mounting misalignment, worn bearings	Realign thruster, replace bearings
Overheating	High duty cycle, low oil, voltage issues	Reduce cycle rate, add/refill oil, check voltage

Frequently Asked Questions

What is the difference between Ed 121/6 and Ed 201/6?

Both models share the same physical dimensions (645 x 240 x 112mm) and mounting configuration. The difference is motor power: Ed 121/6 produces 1250N thrust at 330W, while Ed 201/6 produces 2000N thrust at 450W. The Ed 201/6 is recommended for larger brake sizes (400mm+) or high-duty-cycle applications where the additional thermal capacity prevents overheating.

Can Ed thrusters be installed horizontally?

Yes, Ed thrusters can be mounted in any orientation—vertical, horizontal, or angled. However, horizontal mounting may require more frequent oil checks as the oil level shifts. For horizontal installations above 45°, specify the C/M/D spring options to ensure proper reset force. Our engineering team can provide orientation-specific guidance.

How do I wire an Ed thruster to my brake control circuit?

Ed thrusters are 3-phase AC motors (380-440V standard). Connect the three motor leads to your brake contactor or VFD output. For limit switch integration, the E1/E2 switches are single-pole, double-throw (SPDT) devices that can directly interface with PLC inputs or control relays. Always verify the wiring diagram for your specific model before installation.

What hydraulic oil should I use for Ed thrusters?

Use IS VG 32 hydraulic oil (or equivalent) for standard temperatures (-20°C to +50°C). For cold climates below -20°C, use IS VG 15 winter-grade oil with the R heater option. Avoid using ATF, motor oil, or brake fluid as these will damage seals and reduce thruster life. Oil capacity is approximately 0.3L for small models and 0.8L for Ed 301/6 and larger.

Can Ed thrusters replace YT1 thrusters directly?

In many cases, yes—but with caveats. The mounting dimensions differ, so an adapter bracket may be required. Additionally, Ed thrusters produce more thrust than YT1 models of similar size, so a smaller Ed model (e.g., Ed 80 instead of YT1 200) may provide equivalent performance. Check our cross-reference table or consult our engineering team to confirm compatibility with your specific brake model.

Request a Quote for Ed Series Thrusters

Get the right Ed thruster for your application. Our technical team can help you select the optimal model based on your brake size, duty cycle, and environmental requirements. We also offer bulk pricing for OEM customers and rapid delivery for replacement orders.

Contact us today to discuss your thruster requirements, request dimensional drawings, or place an order.

EB Inductive Switch: Contactless sensing for high-cycle applications

R Heater: Ensures reliable cold-weather startup below -20°C

Ed Series Model Specifications

Select the optimal Ed thruster model based on your required thrust, stroke length, and brake wheel size. All models share the same German-engineered quality and DIN 15430 compliance.

Model	Thrust (N)	Stroke (mm)	Power (W)	Weight (kg)	A × K × L (mm)
Ed 23/5	220	50	165	10	286 × 160 × 80
Ed 30/5	300	50	200	14	370 × 160 × 80
Ed 50/6	500	60	210	21	435 × 190 × 95
Ed 80/6	800	60	330	24	450 × 190 × 95
Ed 121/6	1250	60	330	39	645 × 240 × 112
Ed 201/6	2000	60	450	39	645 × 240 × 112
Ed 301/6	3000	60	550	40	645 × 240 × 112
Ed 80/12	800	120	330	27	530 × 190 × 95
Ed 121/12	1250	120	330	39	705 × 240 × 112
Ed 201/12	2000	120	450	39	705 × 240 × 112
Ed 301/12	3000	120	550	40	705 × 240 × 112
Ed 630/12	6300	120	1100	–	865 × 270 × 127

Note: Custom voltages (400V, 415V, 440V) and 60Hz variants available. Contact our engineering team for explosion-proof BEd series models or special configurations.

How Ed Thrusters Work: The Fail-Safe Principle

Brake Release Sequence

Step 1 – Activation: When power is applied, the internal AC motor drives a centrifugal impeller at high speed
Step 2 – Pressure Generation: The spinning impeller creates hydraulic pressure by forcing oil through precision-machined passages
Step 3 – Piston Extension: Hydraulic pressure acts on a precision piston, pushing the push rod outward
Step 4 – Brake Release: The extended push rod overcomes the brake’s main spring force, releasing the brake pads from the drum or disc

Fail-Safe Engagement

The critical safety feature of the Ed thruster is its inherent fail-safe design. When power is removed:

The motor stops and the impeller slows within milliseconds
Hydraulic pressure dissipates instantly as oil flows back through the return path
The brake’s main spring force takes over, pushing the piston and brake mechanism back to the engaged position
The brake engages automatically, safely holding the load without any electrical intervention

Primary Applications

Ed series electro-hydraulic thrusters power braking systems across virtually every industrial sector where lifting, moving, and positioning of heavy loads demands safe, reliable stopping power.

Industrial Drum Brakes

YWZ4 Series – Standard industrial drum brake (Ed 23 to Ed 301)
YWZ8 Series – Compact design drum brake (Ed 23 to Ed 201)
YWZ9 Series – Heavy-duty drum brake with wear compensation (Ed 50 to Ed 630)
YWZ13 Series – Port machinery drum brake (Ed 80 to Ed 301)

Industrial Disc Brakes

Valve & Gate Control

Clamping & Positioning

Thruster Selection Guide: Matching Ed Models to Brake Sizes

Selecting the correct Ed thruster for your brake depends on three key factors: brake size, required braking torque, and duty cycle. Use this guide to find the right match.

Brake Wheel (mm)	Recommended Thruster	Typical Torque Range
100 – 150	Ed 23/5 or Ed 30/5	100 – 210 N·m
200	Ed 30/5 or Ed 50/6	280 – 400 N·m
300	Ed 50/6 or Ed 80/6	630 – 1000 N·m
400	Ed 80/6 or Ed 121/6	1600 – 2500 N·m
500	Ed 121/6 or Ed 201/6	3150 – 5000 N·m
600	Ed 201/6 or Ed 301/6	6300 – 8000 N·m
700 – 800	Ed 301/6 or Ed 630/12	10000 – 16000 N·m

For high-cycle applications (>600 cycles/hour): Select the next size up to ensure adequate thrust margin and prevent thruster overheating.

For low-temperature environments (<-20°C): Specify the R heater option and consider using higher-viscosity hydraulic oil (IS VG 46 winter grade).

Ed Series vs BEd Explosion-Proof vs YT1: Choosing the Right Thruster

Feature	Ed Series	BEd Series (Explosion-Proof)	YT1 Series
Certification	DIN 15430	Ex d IIC T4, ATEX	JB/T 10603
Environment	Standard industrial	Hazardous areas	Standard industrial
Protection	IP65	IP65, Ex-rated	IP54
Max Thrust	6300N	3000N	3200N
Price Point	Premium	Highest	Economical
Best For	DIN-compliant OEM	Gas/dust hazardous zones	Cost-sensitive retrofit

Choose Ed series when: You need DIN 15430 compliance, premium quality, and maximum configuration flexibility for standard industrial braking applications.

Choose BEd series when: Your application is in Zone 1 or Zone 2 hazardous areas where explosion-proof equipment is mandatory (paint spray booths, chemical plants, grain handling).

Choose YT1 series when: You need a cost-effective alternative for standard applications where DIN compliance is not required, and budget is the primary concern.

Maintenance & Troubleshooting

Ed series thrusters are designed for maintenance-free operation, but periodic inspection ensures long service life and prevents unexpected downtime.

Regular Inspection Schedule

Monthly: Visual inspection for oil leaks, verify mounting bolts are tight
Quarterly: Check push rod for scoring or corrosion, verify electrical connections
Annually: Measure extension speed (should be 0.5-2 seconds depending on model), check limit switch operation
Every 2-3 years: Oil change using specified hydraulic oil (IS VG 32 or equivalent)

Common Issues & Solutions

Symptom	Possible Cause	Solution
Thruster won’t release	No power, motor failure, low oil	Check power supply, test motor resistance, add oil if needed
Slow release action	Clogged filter, worn seals, cold oil	Replace oil filter, check seals, use winter-grade oil
Oil leakage around push rod	Worn rod seal	Replace seal kit, inspect push rod surface
Excessive noise/vibration	Mounting misalignment, worn bearings	Realign thruster, replace bearings
Overheating	High duty cycle, low oil, voltage issues	Reduce cycle rate, add/refill oil, check voltage

Frequently Asked Questions

What is the difference between Ed 121/6 and Ed 201/6?

Can Ed thrusters be installed horizontally?

How do I wire an Ed thruster to my brake control circuit?

What hydraulic oil should I use for Ed thrusters?

Can Ed thrusters replace YT1 thrusters directly?

Request a Quote for Ed Series Thrusters

Contact us today to discuss your thruster requirements, request dimensional drawings, or place an order.

E1/E2 Limit Switches: Mechanical position feedback for PLC integration

EB Inductive Switch: Contactless sensing for high-cycle applications

R Heater: Ensures reliable cold-weather startup below -20°C

Ed Series Model Specifications

Select the optimal Ed thruster model based on your required thrust, stroke length, and brake wheel size. All models share the same German-engineered quality and DIN 15430 compliance.

Model	Thrust (N)	Stroke (mm)	Power (W)	Weight (kg)	A × K × L (mm)
Ed 23/5	220	50	165	10	286 × 160 × 80
Ed 30/5	300	50	200	14	370 × 160 × 80
Ed 50/6	500	60	210	21	435 × 190 × 95
Ed 80/6	800	60	330	24	450 × 190 × 95
Ed 121/6	1250	60	330	39	645 × 240 × 112
Ed 201/6	2000	60	450	39	645 × 240 × 112
Ed 301/6	3000	60	550	40	645 × 240 × 112
Ed 80/12	800	120	330	27	530 × 190 × 95
Ed 121/12	1250	120	330	39	705 × 240 × 112
Ed 201/12	2000	120	450	39	705 × 240 × 112
Ed 301/12	3000	120	550	40	705 × 240 × 112
Ed 630/12	6300	120	1100	–	865 × 270 × 127

Note: Custom voltages (400V, 415V, 440V) and 60Hz variants available. Contact our engineering team for explosion-proof BEd series models or special configurations.

How Ed Thrusters Work: The Fail-Safe Principle

Brake Release Sequence

Step 1 – Activation: When power is applied, the internal AC motor drives a centrifugal impeller at high speed
Step 2 – Pressure Generation: The spinning impeller creates hydraulic pressure by forcing oil through precision-machined passages
Step 3 – Piston Extension: Hydraulic pressure acts on a precision piston, pushing the push rod outward
Step 4 – Brake Release: The extended push rod overcomes the brake’s main spring force, releasing the brake pads from the drum or disc

Fail-Safe Engagement

The critical safety feature of the Ed thruster is its inherent fail-safe design. When power is removed:

The motor stops and the impeller slows within milliseconds
Hydraulic pressure dissipates instantly as oil flows back through the return path
The brake’s main spring force takes over, pushing the piston and brake mechanism back to the engaged position
The brake engages automatically, safely holding the load without any electrical intervention

Primary Applications

Ed series electro-hydraulic thrusters power braking systems across virtually every industrial sector where lifting, moving, and positioning of heavy loads demands safe, reliable stopping power.

Industrial Drum Brakes

YWZ4 Series – Standard industrial drum brake (Ed 23 to Ed 301)
YWZ8 Series – Compact design drum brake (Ed 23 to Ed 201)
YWZ9 Series – Heavy-duty drum brake with wear compensation (Ed 50 to Ed 630)
YWZ13 Series – Port machinery drum brake (Ed 80 to Ed 301)

Industrial Disc Brakes

Valve & Gate Control

Clamping & Positioning

Thruster Selection Guide: Matching Ed Models to Brake Sizes

Selecting the correct Ed thruster for your brake depends on three key factors: brake size, required braking torque, and duty cycle. Use this guide to find the right match.

Brake Wheel (mm)	Recommended Thruster	Typical Torque Range
100 – 150	Ed 23/5 or Ed 30/5	100 – 210 N·m
200	Ed 30/5 or Ed 50/6	280 – 400 N·m
300	Ed 50/6 or Ed 80/6	630 – 1000 N·m
400	Ed 80/6 or Ed 121/6	1600 – 2500 N·m
500	Ed 121/6 or Ed 201/6	3150 – 5000 N·m
600	Ed 201/6 or Ed 301/6	6300 – 8000 N·m
700 – 800	Ed 301/6 or Ed 630/12	10000 – 16000 N·m

For high-cycle applications (>600 cycles/hour): Select the next size up to ensure adequate thrust margin and prevent thruster overheating.

For low-temperature environments (<-20°C): Specify the R heater option and consider using higher-viscosity hydraulic oil (IS VG 46 winter grade).

Ed Series vs BEd Explosion-Proof vs YT1: Choosing the Right Thruster

Feature	Ed Series	BEd Series (Explosion-Proof)	YT1 Series
Certification	DIN 15430	Ex d IIC T4, ATEX	JB/T 10603
Environment	Standard industrial	Hazardous areas	Standard industrial
Protection	IP65	IP65, Ex-rated	IP54
Max Thrust	6300N	3000N	3200N
Price Point	Premium	Highest	Economical
Best For	DIN-compliant OEM	Gas/dust hazardous zones	Cost-sensitive retrofit

Choose Ed series when: You need DIN 15430 compliance, premium quality, and maximum configuration flexibility for standard industrial braking applications.

Choose BEd series when: Your application is in Zone 1 or Zone 2 hazardous areas where explosion-proof equipment is mandatory (paint spray booths, chemical plants, grain handling).

Choose YT1 series when: You need a cost-effective alternative for standard applications where DIN compliance is not required, and budget is the primary concern.

Maintenance & Troubleshooting

Ed series thrusters are designed for maintenance-free operation, but periodic inspection ensures long service life and prevents unexpected downtime.

Regular Inspection Schedule

Monthly: Visual inspection for oil leaks, verify mounting bolts are tight
Quarterly: Check push rod for scoring or corrosion, verify electrical connections
Annually: Measure extension speed (should be 0.5-2 seconds depending on model), check limit switch operation
Every 2-3 years: Oil change using specified hydraulic oil (IS VG 32 or equivalent)

Common Issues & Solutions

Symptom	Possible Cause	Solution
Thruster won’t release	No power, motor failure, low oil	Check power supply, test motor resistance, add oil if needed
Slow release action	Clogged filter, worn seals, cold oil	Replace oil filter, check seals, use winter-grade oil
Oil leakage around push rod	Worn rod seal	Replace seal kit, inspect push rod surface
Excessive noise/vibration	Mounting misalignment, worn bearings	Realign thruster, replace bearings
Overheating	High duty cycle, low oil, voltage issues	Reduce cycle rate, add/refill oil, check voltage

Frequently Asked Questions

What is the difference between Ed 121/6 and Ed 201/6?

Can Ed thrusters be installed horizontally?

How do I wire an Ed thruster to my brake control circuit?

What hydraulic oil should I use for Ed thrusters?

Can Ed thrusters replace YT1 thrusters directly?

Request a Quote for Ed Series Thrusters

Contact us today to discuss your thruster requirements, request dimensional drawings, or place an order.

E1/E2 Limit Switches: Mechanical position feedback for PLC integration

EB Inductive Switch: Contactless sensing for high-cycle applications

R Heater: Ensures reliable cold-weather startup below -20°C

Ed Series Model Specifications

Select the optimal Ed thruster model based on your required thrust, stroke length, and brake wheel size. All models share the same German-engineered quality and DIN 15430 compliance.

Model	Thrust (N)	Stroke (mm)	Power (W)	Weight (kg)	A × K × L (mm)
Ed 23/5	220	50	165	10	286 × 160 × 80
Ed 30/5	300	50	200	14	370 × 160 × 80
Ed 50/6	500	60	210	21	435 × 190 × 95
Ed 80/6	800	60	330	24	450 × 190 × 95
Ed 121/6	1250	60	330	39	645 × 240 × 112
Ed 201/6	2000	60	450	39	645 × 240 × 112
Ed 301/6	3000	60	550	40	645 × 240 × 112
Ed 80/12	800	120	330	27	530 × 190 × 95
Ed 121/12	1250	120	330	39	705 × 240 × 112
Ed 201/12	2000	120	450	39	705 × 240 × 112
Ed 301/12	3000	120	550	40	705 × 240 × 112
Ed 630/12	6300	120	1100	–	865 × 270 × 127

Note: Custom voltages (400V, 415V, 440V) and 60Hz variants available. Contact our engineering team for explosion-proof BEd series models or special configurations.

How Ed Thrusters Work: The Fail-Safe Principle

Brake Release Sequence

Step 1 – Activation: When power is applied, the internal AC motor drives a centrifugal impeller at high speed
Step 2 – Pressure Generation: The spinning impeller creates hydraulic pressure by forcing oil through precision-machined passages
Step 3 – Piston Extension: Hydraulic pressure acts on a precision piston, pushing the push rod outward
Step 4 – Brake Release: The extended push rod overcomes the brake’s main spring force, releasing the brake pads from the drum or disc

Fail-Safe Engagement

The critical safety feature of the Ed thruster is its inherent fail-safe design. When power is removed:

The motor stops and the impeller slows within milliseconds
Hydraulic pressure dissipates instantly as oil flows back through the return path
The brake’s main spring force takes over, pushing the piston and brake mechanism back to the engaged position
The brake engages automatically, safely holding the load without any electrical intervention

Primary Applications

Ed series electro-hydraulic thrusters power braking systems across virtually every industrial sector where lifting, moving, and positioning of heavy loads demands safe, reliable stopping power.

Industrial Drum Brakes

YWZ4 Series – Standard industrial drum brake (Ed 23 to Ed 301)
YWZ8 Series – Compact design drum brake (Ed 23 to Ed 201)
YWZ9 Series – Heavy-duty drum brake with wear compensation (Ed 50 to Ed 630)
YWZ13 Series – Port machinery drum brake (Ed 80 to Ed 301)

Industrial Disc Brakes

Valve & Gate Control

Clamping & Positioning

Thruster Selection Guide: Matching Ed Models to Brake Sizes

Selecting the correct Ed thruster for your brake depends on three key factors: brake size, required braking torque, and duty cycle. Use this guide to find the right match.

Brake Wheel (mm)	Recommended Thruster	Typical Torque Range
100 – 150	Ed 23/5 or Ed 30/5	100 – 210 N·m
200	Ed 30/5 or Ed 50/6	280 – 400 N·m
300	Ed 50/6 or Ed 80/6	630 – 1000 N·m
400	Ed 80/6 or Ed 121/6	1600 – 2500 N·m
500	Ed 121/6 or Ed 201/6	3150 – 5000 N·m
600	Ed 201/6 or Ed 301/6	6300 – 8000 N·m
700 – 800	Ed 301/6 or Ed 630/12	10000 – 16000 N·m

For high-cycle applications (>600 cycles/hour): Select the next size up to ensure adequate thrust margin and prevent thruster overheating.

For low-temperature environments (<-20°C): Specify the R heater option and consider using higher-viscosity hydraulic oil (IS VG 46 winter grade).

Ed Series vs BEd Explosion-Proof vs YT1: Choosing the Right Thruster

Feature	Ed Series	BEd Series (Explosion-Proof)	YT1 Series
Certification	DIN 15430	Ex d IIC T4, ATEX	JB/T 10603
Environment	Standard industrial	Hazardous areas	Standard industrial
Protection	IP65	IP65, Ex-rated	IP54
Max Thrust	6300N	3000N	3200N
Price Point	Premium	Highest	Economical
Best For	DIN-compliant OEM	Gas/dust hazardous zones	Cost-sensitive retrofit

Choose Ed series when: You need DIN 15430 compliance, premium quality, and maximum configuration flexibility for standard industrial braking applications.

Choose BEd series when: Your application is in Zone 1 or Zone 2 hazardous areas where explosion-proof equipment is mandatory (paint spray booths, chemical plants, grain handling).

Choose YT1 series when: You need a cost-effective alternative for standard applications where DIN compliance is not required, and budget is the primary concern.

Maintenance & Troubleshooting

Ed series thrusters are designed for maintenance-free operation, but periodic inspection ensures long service life and prevents unexpected downtime.

Regular Inspection Schedule

Monthly: Visual inspection for oil leaks, verify mounting bolts are tight
Quarterly: Check push rod for scoring or corrosion, verify electrical connections
Annually: Measure extension speed (should be 0.5-2 seconds depending on model), check limit switch operation
Every 2-3 years: Oil change using specified hydraulic oil (IS VG 32 or equivalent)

Common Issues & Solutions

Symptom	Possible Cause	Solution
Thruster won’t release	No power, motor failure, low oil	Check power supply, test motor resistance, add oil if needed
Slow release action	Clogged filter, worn seals, cold oil	Replace oil filter, check seals, use winter-grade oil
Oil leakage around push rod	Worn rod seal	Replace seal kit, inspect push rod surface
Excessive noise/vibration	Mounting misalignment, worn bearings	Realign thruster, replace bearings
Overheating	High duty cycle, low oil, voltage issues	Reduce cycle rate, add/refill oil, check voltage

Frequently Asked Questions

What is the difference between Ed 121/6 and Ed 201/6?

Can Ed thrusters be installed horizontally?

How do I wire an Ed thruster to my brake control circuit?

What hydraulic oil should I use for Ed thrusters?

Can Ed thrusters replace YT1 thrusters directly?

Request a Quote for Ed Series Thrusters

Contact us today to discuss your thruster requirements, request dimensional drawings, or place an order.

S Valve (Descent Delay): Controls retraction speed for smooth brake engagement

E1/E2 Limit Switches: Mechanical position feedback for PLC integration

EB Inductive Switch: Contactless sensing for high-cycle applications

R Heater: Ensures reliable cold-weather startup below -20°C

Ed Series Model Specifications

Select the optimal Ed thruster model based on your required thrust, stroke length, and brake wheel size. All models share the same German-engineered quality and DIN 15430 compliance.

Model	Thrust (N)	Stroke (mm)	Power (W)	Weight (kg)	A × K × L (mm)
Ed 23/5	220	50	165	10	286 × 160 × 80
Ed 30/5	300	50	200	14	370 × 160 × 80
Ed 50/6	500	60	210	21	435 × 190 × 95
Ed 80/6	800	60	330	24	450 × 190 × 95
Ed 121/6	1250	60	330	39	645 × 240 × 112
Ed 201/6	2000	60	450	39	645 × 240 × 112
Ed 301/6	3000	60	550	40	645 × 240 × 112
Ed 80/12	800	120	330	27	530 × 190 × 95
Ed 121/12	1250	120	330	39	705 × 240 × 112
Ed 201/12	2000	120	450	39	705 × 240 × 112
Ed 301/12	3000	120	550	40	705 × 240 × 112
Ed 630/12	6300	120	1100	–	865 × 270 × 127

Note: Custom voltages (400V, 415V, 440V) and 60Hz variants available. Contact our engineering team for explosion-proof BEd series models or special configurations.

How Ed Thrusters Work: The Fail-Safe Principle

Brake Release Sequence

Step 1 – Activation: When power is applied, the internal AC motor drives a centrifugal impeller at high speed
Step 2 – Pressure Generation: The spinning impeller creates hydraulic pressure by forcing oil through precision-machined passages
Step 3 – Piston Extension: Hydraulic pressure acts on a precision piston, pushing the push rod outward
Step 4 – Brake Release: The extended push rod overcomes the brake’s main spring force, releasing the brake pads from the drum or disc

Fail-Safe Engagement

The critical safety feature of the Ed thruster is its inherent fail-safe design. When power is removed:

The motor stops and the impeller slows within milliseconds
Hydraulic pressure dissipates instantly as oil flows back through the return path
The brake’s main spring force takes over, pushing the piston and brake mechanism back to the engaged position
The brake engages automatically, safely holding the load without any electrical intervention

Primary Applications

Ed series electro-hydraulic thrusters power braking systems across virtually every industrial sector where lifting, moving, and positioning of heavy loads demands safe, reliable stopping power.

Industrial Drum Brakes

YWZ4 Series – Standard industrial drum brake (Ed 23 to Ed 301)
YWZ8 Series – Compact design drum brake (Ed 23 to Ed 201)
YWZ9 Series – Heavy-duty drum brake with wear compensation (Ed 50 to Ed 630)
YWZ13 Series – Port machinery drum brake (Ed 80 to Ed 301)

Industrial Disc Brakes

Valve & Gate Control

Clamping & Positioning

Thruster Selection Guide: Matching Ed Models to Brake Sizes

Selecting the correct Ed thruster for your brake depends on three key factors: brake size, required braking torque, and duty cycle. Use this guide to find the right match.

Brake Wheel (mm)	Recommended Thruster	Typical Torque Range
100 – 150	Ed 23/5 or Ed 30/5	100 – 210 N·m
200	Ed 30/5 or Ed 50/6	280 – 400 N·m
300	Ed 50/6 or Ed 80/6	630 – 1000 N·m
400	Ed 80/6 or Ed 121/6	1600 – 2500 N·m
500	Ed 121/6 or Ed 201/6	3150 – 5000 N·m
600	Ed 201/6 or Ed 301/6	6300 – 8000 N·m
700 – 800	Ed 301/6 or Ed 630/12	10000 – 16000 N·m

For high-cycle applications (>600 cycles/hour): Select the next size up to ensure adequate thrust margin and prevent thruster overheating.

For low-temperature environments (<-20°C): Specify the R heater option and consider using higher-viscosity hydraulic oil (IS VG 46 winter grade).

Ed Series vs BEd Explosion-Proof vs YT1: Choosing the Right Thruster

Feature	Ed Series	BEd Series (Explosion-Proof)	YT1 Series
Certification	DIN 15430	Ex d IIC T4, ATEX	JB/T 10603
Environment	Standard industrial	Hazardous areas	Standard industrial
Protection	IP65	IP65, Ex-rated	IP54
Max Thrust	6300N	3000N	3200N
Price Point	Premium	Highest	Economical
Best For	DIN-compliant OEM	Gas/dust hazardous zones	Cost-sensitive retrofit

Choose Ed series when: You need DIN 15430 compliance, premium quality, and maximum configuration flexibility for standard industrial braking applications.

Choose BEd series when: Your application is in Zone 1 or Zone 2 hazardous areas where explosion-proof equipment is mandatory (paint spray booths, chemical plants, grain handling).

Choose YT1 series when: You need a cost-effective alternative for standard applications where DIN compliance is not required, and budget is the primary concern.

Maintenance & Troubleshooting

Ed series thrusters are designed for maintenance-free operation, but periodic inspection ensures long service life and prevents unexpected downtime.

Regular Inspection Schedule

Monthly: Visual inspection for oil leaks, verify mounting bolts are tight
Quarterly: Check push rod for scoring or corrosion, verify electrical connections
Annually: Measure extension speed (should be 0.5-2 seconds depending on model), check limit switch operation
Every 2-3 years: Oil change using specified hydraulic oil (IS VG 32 or equivalent)

Common Issues & Solutions

Symptom	Possible Cause	Solution
Thruster won’t release	No power, motor failure, low oil	Check power supply, test motor resistance, add oil if needed
Slow release action	Clogged filter, worn seals, cold oil	Replace oil filter, check seals, use winter-grade oil
Oil leakage around push rod	Worn rod seal	Replace seal kit, inspect push rod surface
Excessive noise/vibration	Mounting misalignment, worn bearings	Realign thruster, replace bearings
Overheating	High duty cycle, low oil, voltage issues	Reduce cycle rate, add/refill oil, check voltage

Frequently Asked Questions

What is the difference between Ed 121/6 and Ed 201/6?

Can Ed thrusters be installed horizontally?

How do I wire an Ed thruster to my brake control circuit?

What hydraulic oil should I use for Ed thrusters?

Can Ed thrusters replace YT1 thrusters directly?

Request a Quote for Ed Series Thrusters

Contact us today to discuss your thruster requirements, request dimensional drawings, or place an order.

S Valve (Descent Delay): Controls retraction speed for smooth brake engagement

E1/E2 Limit Switches: Mechanical position feedback for PLC integration

EB Inductive Switch: Contactless sensing for high-cycle applications

R Heater: Ensures reliable cold-weather startup below -20°C

Ed Series Model Specifications

Select the optimal Ed thruster model based on your required thrust, stroke length, and brake wheel size. All models share the same German-engineered quality and DIN 15430 compliance.

Model	Thrust (N)	Stroke (mm)	Power (W)	Weight (kg)	A × K × L (mm)
Ed 23/5	220	50	165	10	286 × 160 × 80
Ed 30/5	300	50	200	14	370 × 160 × 80
Ed 50/6	500	60	210	21	435 × 190 × 95
Ed 80/6	800	60	330	24	450 × 190 × 95
Ed 121/6	1250	60	330	39	645 × 240 × 112
Ed 201/6	2000	60	450	39	645 × 240 × 112
Ed 301/6	3000	60	550	40	645 × 240 × 112
Ed 80/12	800	120	330	27	530 × 190 × 95
Ed 121/12	1250	120	330	39	705 × 240 × 112
Ed 201/12	2000	120	450	39	705 × 240 × 112
Ed 301/12	3000	120	550	40	705 × 240 × 112
Ed 630/12	6300	120	1100	–	865 × 270 × 127

Note: Custom voltages (400V, 415V, 440V) and 60Hz variants available. Contact our engineering team for explosion-proof BEd series models or special configurations.

How Ed Thrusters Work: The Fail-Safe Principle

Brake Release Sequence

Step 1 – Activation: When power is applied, the internal AC motor drives a centrifugal impeller at high speed
Step 2 – Pressure Generation: The spinning impeller creates hydraulic pressure by forcing oil through precision-machined passages
Step 3 – Piston Extension: Hydraulic pressure acts on a precision piston, pushing the push rod outward
Step 4 – Brake Release: The extended push rod overcomes the brake’s main spring force, releasing the brake pads from the drum or disc

Fail-Safe Engagement

The critical safety feature of the Ed thruster is its inherent fail-safe design. When power is removed:

The motor stops and the impeller slows within milliseconds
Hydraulic pressure dissipates instantly as oil flows back through the return path
The brake’s main spring force takes over, pushing the piston and brake mechanism back to the engaged position
The brake engages automatically, safely holding the load without any electrical intervention

Primary Applications

Ed series electro-hydraulic thrusters power braking systems across virtually every industrial sector where lifting, moving, and positioning of heavy loads demands safe, reliable stopping power.

Industrial Drum Brakes

YWZ4 Series – Standard industrial drum brake (Ed 23 to Ed 301)
YWZ8 Series – Compact design drum brake (Ed 23 to Ed 201)
YWZ9 Series – Heavy-duty drum brake with wear compensation (Ed 50 to Ed 630)
YWZ13 Series – Port machinery drum brake (Ed 80 to Ed 301)

Industrial Disc Brakes

Valve & Gate Control

Clamping & Positioning

Thruster Selection Guide: Matching Ed Models to Brake Sizes

Selecting the correct Ed thruster for your brake depends on three key factors: brake size, required braking torque, and duty cycle. Use this guide to find the right match.

Brake Wheel (mm)	Recommended Thruster	Typical Torque Range
100 – 150	Ed 23/5 or Ed 30/5	100 – 210 N·m
200	Ed 30/5 or Ed 50/6	280 – 400 N·m
300	Ed 50/6 or Ed 80/6	630 – 1000 N·m
400	Ed 80/6 or Ed 121/6	1600 – 2500 N·m
500	Ed 121/6 or Ed 201/6	3150 – 5000 N·m
600	Ed 201/6 or Ed 301/6	6300 – 8000 N·m
700 – 800	Ed 301/6 or Ed 630/12	10000 – 16000 N·m

For high-cycle applications (>600 cycles/hour): Select the next size up to ensure adequate thrust margin and prevent thruster overheating.

For low-temperature environments (<-20°C): Specify the R heater option and consider using higher-viscosity hydraulic oil (IS VG 46 winter grade).

Ed Series vs BEd Explosion-Proof vs YT1: Choosing the Right Thruster

Feature	Ed Series	BEd Series (Explosion-Proof)	YT1 Series
Certification	DIN 15430	Ex d IIC T4, ATEX	JB/T 10603
Environment	Standard industrial	Hazardous areas	Standard industrial
Protection	IP65	IP65, Ex-rated	IP54
Max Thrust	6300N	3000N	3200N
Price Point	Premium	Highest	Economical
Best For	DIN-compliant OEM	Gas/dust hazardous zones	Cost-sensitive retrofit

Choose Ed series when: You need DIN 15430 compliance, premium quality, and maximum configuration flexibility for standard industrial braking applications.

Choose BEd series when: Your application is in Zone 1 or Zone 2 hazardous areas where explosion-proof equipment is mandatory (paint spray booths, chemical plants, grain handling).

Choose YT1 series when: You need a cost-effective alternative for standard applications where DIN compliance is not required, and budget is the primary concern.

Maintenance & Troubleshooting

Ed series thrusters are designed for maintenance-free operation, but periodic inspection ensures long service life and prevents unexpected downtime.

Regular Inspection Schedule

Monthly: Visual inspection for oil leaks, verify mounting bolts are tight
Quarterly: Check push rod for scoring or corrosion, verify electrical connections
Annually: Measure extension speed (should be 0.5-2 seconds depending on model), check limit switch operation
Every 2-3 years: Oil change using specified hydraulic oil (IS VG 32 or equivalent)

Common Issues & Solutions

Symptom	Possible Cause	Solution
Thruster won’t release	No power, motor failure, low oil	Check power supply, test motor resistance, add oil if needed
Slow release action	Clogged filter, worn seals, cold oil	Replace oil filter, check seals, use winter-grade oil
Oil leakage around push rod	Worn rod seal	Replace seal kit, inspect push rod surface
Excessive noise/vibration	Mounting misalignment, worn bearings	Realign thruster, replace bearings
Overheating	High duty cycle, low oil, voltage issues	Reduce cycle rate, add/refill oil, check voltage

Frequently Asked Questions

What is the difference between Ed 121/6 and Ed 201/6?

Can Ed thrusters be installed horizontally?

How do I wire an Ed thruster to my brake control circuit?

What hydraulic oil should I use for Ed thrusters?

Can Ed thrusters replace YT1 thrusters directly?

Request a Quote for Ed Series Thrusters

Contact us today to discuss your thruster requirements, request dimensional drawings, or place an order.

H Valve (Ascent Delay): Slows extension speed to prevent load swing during brake release

S Valve (Descent Delay): Controls retraction speed for smooth brake engagement

E1/E2 Limit Switches: Mechanical position feedback for PLC integration

EB Inductive Switch: Contactless sensing for high-cycle applications

R Heater: Ensures reliable cold-weather startup below -20°C

Ed Series Model Specifications

Select the optimal Ed thruster model based on your required thrust, stroke length, and brake wheel size. All models share the same German-engineered quality and DIN 15430 compliance.

Model	Thrust (N)	Stroke (mm)	Power (W)	Weight (kg)	A × K × L (mm)
Ed 23/5	220	50	165	10	286 × 160 × 80
Ed 30/5	300	50	200	14	370 × 160 × 80
Ed 50/6	500	60	210	21	435 × 190 × 95
Ed 80/6	800	60	330	24	450 × 190 × 95
Ed 121/6	1250	60	330	39	645 × 240 × 112
Ed 201/6	2000	60	450	39	645 × 240 × 112
Ed 301/6	3000	60	550	40	645 × 240 × 112
Ed 80/12	800	120	330	27	530 × 190 × 95
Ed 121/12	1250	120	330	39	705 × 240 × 112
Ed 201/12	2000	120	450	39	705 × 240 × 112
Ed 301/12	3000	120	550	40	705 × 240 × 112
Ed 630/12	6300	120	1100	–	865 × 270 × 127

Note: Custom voltages (400V, 415V, 440V) and 60Hz variants available. Contact our engineering team for explosion-proof BEd series models or special configurations.

How Ed Thrusters Work: The Fail-Safe Principle

Brake Release Sequence

Step 1 – Activation: When power is applied, the internal AC motor drives a centrifugal impeller at high speed
Step 2 – Pressure Generation: The spinning impeller creates hydraulic pressure by forcing oil through precision-machined passages
Step 3 – Piston Extension: Hydraulic pressure acts on a precision piston, pushing the push rod outward
Step 4 – Brake Release: The extended push rod overcomes the brake’s main spring force, releasing the brake pads from the drum or disc

Fail-Safe Engagement

The critical safety feature of the Ed thruster is its inherent fail-safe design. When power is removed:

The motor stops and the impeller slows within milliseconds
Hydraulic pressure dissipates instantly as oil flows back through the return path
The brake’s main spring force takes over, pushing the piston and brake mechanism back to the engaged position
The brake engages automatically, safely holding the load without any electrical intervention

Primary Applications

Ed series electro-hydraulic thrusters power braking systems across virtually every industrial sector where lifting, moving, and positioning of heavy loads demands safe, reliable stopping power.

Industrial Drum Brakes

YWZ4 Series – Standard industrial drum brake (Ed 23 to Ed 301)
YWZ8 Series – Compact design drum brake (Ed 23 to Ed 201)
YWZ9 Series – Heavy-duty drum brake with wear compensation (Ed 50 to Ed 630)
YWZ13 Series – Port machinery drum brake (Ed 80 to Ed 301)

Industrial Disc Brakes

Valve & Gate Control

Clamping & Positioning

Thruster Selection Guide: Matching Ed Models to Brake Sizes

Selecting the correct Ed thruster for your brake depends on three key factors: brake size, required braking torque, and duty cycle. Use this guide to find the right match.

Brake Wheel (mm)	Recommended Thruster	Typical Torque Range
100 – 150	Ed 23/5 or Ed 30/5	100 – 210 N·m
200	Ed 30/5 or Ed 50/6	280 – 400 N·m
300	Ed 50/6 or Ed 80/6	630 – 1000 N·m
400	Ed 80/6 or Ed 121/6	1600 – 2500 N·m
500	Ed 121/6 or Ed 201/6	3150 – 5000 N·m
600	Ed 201/6 or Ed 301/6	6300 – 8000 N·m
700 – 800	Ed 301/6 or Ed 630/12	10000 – 16000 N·m

For high-cycle applications (>600 cycles/hour): Select the next size up to ensure adequate thrust margin and prevent thruster overheating.

For low-temperature environments (<-20°C): Specify the R heater option and consider using higher-viscosity hydraulic oil (IS VG 46 winter grade).

Ed Series vs BEd Explosion-Proof vs YT1: Choosing the Right Thruster

Feature	Ed Series	BEd Series (Explosion-Proof)	YT1 Series
Certification	DIN 15430	Ex d IIC T4, ATEX	JB/T 10603
Environment	Standard industrial	Hazardous areas	Standard industrial
Protection	IP65	IP65, Ex-rated	IP54
Max Thrust	6300N	3000N	3200N
Price Point	Premium	Highest	Economical
Best For	DIN-compliant OEM	Gas/dust hazardous zones	Cost-sensitive retrofit

Choose Ed series when: You need DIN 15430 compliance, premium quality, and maximum configuration flexibility for standard industrial braking applications.

Choose BEd series when: Your application is in Zone 1 or Zone 2 hazardous areas where explosion-proof equipment is mandatory (paint spray booths, chemical plants, grain handling).

Choose YT1 series when: You need a cost-effective alternative for standard applications where DIN compliance is not required, and budget is the primary concern.

Maintenance & Troubleshooting

Ed series thrusters are designed for maintenance-free operation, but periodic inspection ensures long service life and prevents unexpected downtime.

Regular Inspection Schedule

Monthly: Visual inspection for oil leaks, verify mounting bolts are tight
Quarterly: Check push rod for scoring or corrosion, verify electrical connections
Annually: Measure extension speed (should be 0.5-2 seconds depending on model), check limit switch operation
Every 2-3 years: Oil change using specified hydraulic oil (IS VG 32 or equivalent)

Common Issues & Solutions

Symptom	Possible Cause	Solution
Thruster won’t release	No power, motor failure, low oil	Check power supply, test motor resistance, add oil if needed
Slow release action	Clogged filter, worn seals, cold oil	Replace oil filter, check seals, use winter-grade oil
Oil leakage around push rod	Worn rod seal	Replace seal kit, inspect push rod surface
Excessive noise/vibration	Mounting misalignment, worn bearings	Realign thruster, replace bearings
Overheating	High duty cycle, low oil, voltage issues	Reduce cycle rate, add/refill oil, check voltage

Frequently Asked Questions

What is the difference between Ed 121/6 and Ed 201/6?

Can Ed thrusters be installed horizontally?

How do I wire an Ed thruster to my brake control circuit?

What hydraulic oil should I use for Ed thrusters?

Can Ed thrusters replace YT1 thrusters directly?

Request a Quote for Ed Series Thrusters

Contact us today to discuss your thruster requirements, request dimensional drawings, or place an order.

H Valve (Ascent Delay): Slows extension speed to prevent load swing during brake release
S Valve (Descent Delay): Controls retraction speed for smooth brake engagement
E1/E2 Limit Switches: Mechanical position feedback for PLC integration
EB Inductive Switch: Contactless sensing for high-cycle applications
R Heater: Ensures reliable cold-weather startup below -20°C

Ed Series Model Specifications

Select the optimal Ed thruster model based on your required thrust, stroke length, and brake wheel size. All models share the same German-engineered quality and DIN 15430 compliance.

Model	Thrust (N)	Stroke (mm)	Power (W)	Weight (kg)	A × K × L (mm)
Ed 23/5	220	50	165	10	286 × 160 × 80
Ed 30/5	300	50	200	14	370 × 160 × 80
Ed 50/6	500	60	210	21	435 × 190 × 95
Ed 80/6	800	60	330	24	450 × 190 × 95
Ed 121/6	1250	60	330	39	645 × 240 × 112
Ed 201/6	2000	60	450	39	645 × 240 × 112
Ed 301/6	3000	60	550	40	645 × 240 × 112
Ed 80/12	800	120	330	27	530 × 190 × 95
Ed 121/12	1250	120	330	39	705 × 240 × 112
Ed 201/12	2000	120	450	39	705 × 240 × 112
Ed 301/12	3000	120	550	40	705 × 240 × 112
Ed 630/12	6300	120	1100	–	865 × 270 × 127

Note: Custom voltages (400V, 415V, 440V) and 60Hz variants available. Contact our engineering team for explosion-proof BEd series models or special configurations.

How Ed Thrusters Work: The Fail-Safe Principle

Brake Release Sequence

Step 1 – Activation: When power is applied, the internal AC motor drives a centrifugal impeller at high speed
Step 2 – Pressure Generation: The spinning impeller creates hydraulic pressure by forcing oil through precision-machined passages
Step 3 – Piston Extension: Hydraulic pressure acts on a precision piston, pushing the push rod outward
Step 4 – Brake Release: The extended push rod overcomes the brake’s main spring force, releasing the brake pads from the drum or disc

Fail-Safe Engagement

The critical safety feature of the Ed thruster is its inherent fail-safe design. When power is removed:

The motor stops and the impeller slows within milliseconds
Hydraulic pressure dissipates instantly as oil flows back through the return path
The brake’s main spring force takes over, pushing the piston and brake mechanism back to the engaged position
The brake engages automatically, safely holding the load without any electrical intervention

Primary Applications

Ed series electro-hydraulic thrusters power braking systems across virtually every industrial sector where lifting, moving, and positioning of heavy loads demands safe, reliable stopping power.

Industrial Drum Brakes

YWZ4 Series – Standard industrial drum brake (Ed 23 to Ed 301)
YWZ8 Series – Compact design drum brake (Ed 23 to Ed 201)
YWZ9 Series – Heavy-duty drum brake with wear compensation (Ed 50 to Ed 630)
YWZ13 Series – Port machinery drum brake (Ed 80 to Ed 301)

Industrial Disc Brakes

Valve & Gate Control

Clamping & Positioning

Thruster Selection Guide: Matching Ed Models to Brake Sizes

Selecting the correct Ed thruster for your brake depends on three key factors: brake size, required braking torque, and duty cycle. Use this guide to find the right match.

Brake Wheel (mm)	Recommended Thruster	Typical Torque Range
100 – 150	Ed 23/5 or Ed 30/5	100 – 210 N·m
200	Ed 30/5 or Ed 50/6	280 – 400 N·m
300	Ed 50/6 or Ed 80/6	630 – 1000 N·m
400	Ed 80/6 or Ed 121/6	1600 – 2500 N·m
500	Ed 121/6 or Ed 201/6	3150 – 5000 N·m
600	Ed 201/6 or Ed 301/6	6300 – 8000 N·m
700 – 800	Ed 301/6 or Ed 630/12	10000 – 16000 N·m

For high-cycle applications (>600 cycles/hour): Select the next size up to ensure adequate thrust margin and prevent thruster overheating.

For low-temperature environments (<-20°C): Specify the R heater option and consider using higher-viscosity hydraulic oil (IS VG 46 winter grade).

Ed Series vs BEd Explosion-Proof vs YT1: Choosing the Right Thruster

Feature	Ed Series	BEd Series (Explosion-Proof)	YT1 Series
Certification	DIN 15430	Ex d IIC T4, ATEX	JB/T 10603
Environment	Standard industrial	Hazardous areas	Standard industrial
Protection	IP65	IP65, Ex-rated	IP54
Max Thrust	6300N	3000N	3200N
Price Point	Premium	Highest	Economical
Best For	DIN-compliant OEM	Gas/dust hazardous zones	Cost-sensitive retrofit

Choose Ed series when: You need DIN 15430 compliance, premium quality, and maximum configuration flexibility for standard industrial braking applications.

Choose BEd series when: Your application is in Zone 1 or Zone 2 hazardous areas where explosion-proof equipment is mandatory (paint spray booths, chemical plants, grain handling).

Choose YT1 series when: You need a cost-effective alternative for standard applications where DIN compliance is not required, and budget is the primary concern.

Maintenance & Troubleshooting

Ed series thrusters are designed for maintenance-free operation, but periodic inspection ensures long service life and prevents unexpected downtime.

Regular Inspection Schedule

Monthly: Visual inspection for oil leaks, verify mounting bolts are tight
Quarterly: Check push rod for scoring or corrosion, verify electrical connections
Annually: Measure extension speed (should be 0.5-2 seconds depending on model), check limit switch operation
Every 2-3 years: Oil change using specified hydraulic oil (IS VG 32 or equivalent)

Common Issues & Solutions

Symptom	Possible Cause	Solution
Thruster won’t release	No power, motor failure, low oil	Check power supply, test motor resistance, add oil if needed
Slow release action	Clogged filter, worn seals, cold oil	Replace oil filter, check seals, use winter-grade oil
Oil leakage around push rod	Worn rod seal	Replace seal kit, inspect push rod surface
Excessive noise/vibration	Mounting misalignment, worn bearings	Realign thruster, replace bearings
Overheating	High duty cycle, low oil, voltage issues	Reduce cycle rate, add/refill oil, check voltage

Frequently Asked Questions

What is the difference between Ed 121/6 and Ed 201/6?

Can Ed thrusters be installed horizontally?

How do I wire an Ed thruster to my brake control circuit?

What hydraulic oil should I use for Ed thrusters?

Can Ed thrusters replace YT1 thrusters directly?

Request a Quote for Ed Series Thrusters

Contact us today to discuss your thruster requirements, request dimensional drawings, or place an order.

H Valve (Ascent Delay): Slows extension speed to prevent load swing during brake release
S Valve (Descent Delay): Controls retraction speed for smooth brake engagement
E1/E2 Limit Switches: Mechanical position feedback for PLC integration
EB Inductive Switch: Contactless sensing for high-cycle applications
R Heater: Ensures reliable cold-weather startup below -20°C

Ed Series Model Specifications

Select the optimal Ed thruster model based on your required thrust, stroke length, and brake wheel size. All models share the same German-engineered quality and DIN 15430 compliance.

Model	Thrust (N)	Stroke (mm)	Power (W)	Weight (kg)	A × K × L (mm)
Ed 23/5	220	50	165	10	286 × 160 × 80
Ed 30/5	300	50	200	14	370 × 160 × 80
Ed 50/6	500	60	210	21	435 × 190 × 95
Ed 80/6	800	60	330	24	450 × 190 × 95
Ed 121/6	1250	60	330	39	645 × 240 × 112
Ed 201/6	2000	60	450	39	645 × 240 × 112
Ed 301/6	3000	60	550	40	645 × 240 × 112
Ed 80/12	800	120	330	27	530 × 190 × 95
Ed 121/12	1250	120	330	39	705 × 240 × 112
Ed 201/12	2000	120	450	39	705 × 240 × 112
Ed 301/12	3000	120	550	40	705 × 240 × 112
Ed 630/12	6300	120	1100	–	865 × 270 × 127

Note: Custom voltages (400V, 415V, 440V) and 60Hz variants available. Contact our engineering team for explosion-proof BEd series models or special configurations.

How Ed Thrusters Work: The Fail-Safe Principle

Brake Release Sequence

Step 1 – Activation: When power is applied, the internal AC motor drives a centrifugal impeller at high speed
Step 2 – Pressure Generation: The spinning impeller creates hydraulic pressure by forcing oil through precision-machined passages
Step 3 – Piston Extension: Hydraulic pressure acts on a precision piston, pushing the push rod outward
Step 4 – Brake Release: The extended push rod overcomes the brake’s main spring force, releasing the brake pads from the drum or disc

Fail-Safe Engagement

The critical safety feature of the Ed thruster is its inherent fail-safe design. When power is removed:

The motor stops and the impeller slows within milliseconds
Hydraulic pressure dissipates instantly as oil flows back through the return path
The brake’s main spring force takes over, pushing the piston and brake mechanism back to the engaged position
The brake engages automatically, safely holding the load without any electrical intervention

Primary Applications

Ed series electro-hydraulic thrusters power braking systems across virtually every industrial sector where lifting, moving, and positioning of heavy loads demands safe, reliable stopping power.

Industrial Drum Brakes

YWZ4 Series – Standard industrial drum brake (Ed 23 to Ed 301)
YWZ8 Series – Compact design drum brake (Ed 23 to Ed 201)
YWZ9 Series – Heavy-duty drum brake with wear compensation (Ed 50 to Ed 630)
YWZ13 Series – Port machinery drum brake (Ed 80 to Ed 301)

Industrial Disc Brakes

Valve & Gate Control

Clamping & Positioning

Thruster Selection Guide: Matching Ed Models to Brake Sizes

Selecting the correct Ed thruster for your brake depends on three key factors: brake size, required braking torque, and duty cycle. Use this guide to find the right match.

Brake Wheel (mm)	Recommended Thruster	Typical Torque Range
100 – 150	Ed 23/5 or Ed 30/5	100 – 210 N·m
200	Ed 30/5 or Ed 50/6	280 – 400 N·m
300	Ed 50/6 or Ed 80/6	630 – 1000 N·m
400	Ed 80/6 or Ed 121/6	1600 – 2500 N·m
500	Ed 121/6 or Ed 201/6	3150 – 5000 N·m
600	Ed 201/6 or Ed 301/6	6300 – 8000 N·m
700 – 800	Ed 301/6 or Ed 630/12	10000 – 16000 N·m

For high-cycle applications (>600 cycles/hour): Select the next size up to ensure adequate thrust margin and prevent thruster overheating.

For low-temperature environments (<-20°C): Specify the R heater option and consider using higher-viscosity hydraulic oil (IS VG 46 winter grade).

Ed Series vs BEd Explosion-Proof vs YT1: Choosing the Right Thruster

Feature	Ed Series	BEd Series (Explosion-Proof)	YT1 Series
Certification	DIN 15430	Ex d IIC T4, ATEX	JB/T 10603
Environment	Standard industrial	Hazardous areas	Standard industrial
Protection	IP65	IP65, Ex-rated	IP54
Max Thrust	6300N	3000N	3200N
Price Point	Premium	Highest	Economical
Best For	DIN-compliant OEM	Gas/dust hazardous zones	Cost-sensitive retrofit

Choose Ed series when: You need DIN 15430 compliance, premium quality, and maximum configuration flexibility for standard industrial braking applications.

Choose BEd series when: Your application is in Zone 1 or Zone 2 hazardous areas where explosion-proof equipment is mandatory (paint spray booths, chemical plants, grain handling).

Choose YT1 series when: You need a cost-effective alternative for standard applications where DIN compliance is not required, and budget is the primary concern.

Maintenance & Troubleshooting

Ed series thrusters are designed for maintenance-free operation, but periodic inspection ensures long service life and prevents unexpected downtime.

Regular Inspection Schedule

Monthly: Visual inspection for oil leaks, verify mounting bolts are tight
Quarterly: Check push rod for scoring or corrosion, verify electrical connections
Annually: Measure extension speed (should be 0.5-2 seconds depending on model), check limit switch operation
Every 2-3 years: Oil change using specified hydraulic oil (IS VG 32 or equivalent)

Common Issues & Solutions

Symptom	Possible Cause	Solution
Thruster won’t release	No power, motor failure, low oil	Check power supply, test motor resistance, add oil if needed
Slow release action	Clogged filter, worn seals, cold oil	Replace oil filter, check seals, use winter-grade oil
Oil leakage around push rod	Worn rod seal	Replace seal kit, inspect push rod surface
Excessive noise/vibration	Mounting misalignment, worn bearings	Realign thruster, replace bearings
Overheating	High duty cycle, low oil, voltage issues	Reduce cycle rate, add/refill oil, check voltage

Frequently Asked Questions

What is the difference between Ed 121/6 and Ed 201/6?

Can Ed thrusters be installed horizontally?

How do I wire an Ed thruster to my brake control circuit?

What hydraulic oil should I use for Ed thrusters?

Can Ed thrusters replace YT1 thrusters directly?

Request a Quote for Ed Series Thrusters

Contact us today to discuss your thruster requirements, request dimensional drawings, or place an order.

Direct replacement for legacy thruster models in retrofit applications

5. Precision Control Accessories

Fine-tune thruster behavior with bolt-on accessories that enhance system control:

H Valve (Ascent Delay): Slows extension speed to prevent load swing during brake release
S Valve (Descent Delay): Controls retraction speed for smooth brake engagement
E1/E2 Limit Switches: Mechanical position feedback for PLC integration
EB Inductive Switch: Contactless sensing for high-cycle applications
R Heater: Ensures reliable cold-weather startup below -20°C

Ed Series Model Specifications

Select the optimal Ed thruster model based on your required thrust, stroke length, and brake wheel size. All models share the same German-engineered quality and DIN 15430 compliance.

Model	Thrust (N)	Stroke (mm)	Power (W)	Weight (kg)	A × K × L (mm)
Ed 23/5	220	50	165	10	286 × 160 × 80
Ed 30/5	300	50	200	14	370 × 160 × 80
Ed 50/6	500	60	210	21	435 × 190 × 95
Ed 80/6	800	60	330	24	450 × 190 × 95
Ed 121/6	1250	60	330	39	645 × 240 × 112
Ed 201/6	2000	60	450	39	645 × 240 × 112
Ed 301/6	3000	60	550	40	645 × 240 × 112
Ed 80/12	800	120	330	27	530 × 190 × 95
Ed 121/12	1250	120	330	39	705 × 240 × 112
Ed 201/12	2000	120	450	39	705 × 240 × 112
Ed 301/12	3000	120	550	40	705 × 240 × 112
Ed 630/12	6300	120	1100	–	865 × 270 × 127

Note: Custom voltages (400V, 415V, 440V) and 60Hz variants available. Contact our engineering team for explosion-proof BEd series models or special configurations.

How Ed Thrusters Work: The Fail-Safe Principle

Brake Release Sequence

Step 1 – Activation: When power is applied, the internal AC motor drives a centrifugal impeller at high speed
Step 2 – Pressure Generation: The spinning impeller creates hydraulic pressure by forcing oil through precision-machined passages
Step 3 – Piston Extension: Hydraulic pressure acts on a precision piston, pushing the push rod outward
Step 4 – Brake Release: The extended push rod overcomes the brake’s main spring force, releasing the brake pads from the drum or disc

Fail-Safe Engagement

The critical safety feature of the Ed thruster is its inherent fail-safe design. When power is removed:

The motor stops and the impeller slows within milliseconds
Hydraulic pressure dissipates instantly as oil flows back through the return path
The brake’s main spring force takes over, pushing the piston and brake mechanism back to the engaged position
The brake engages automatically, safely holding the load without any electrical intervention

Primary Applications

Ed series electro-hydraulic thrusters power braking systems across virtually every industrial sector where lifting, moving, and positioning of heavy loads demands safe, reliable stopping power.

Industrial Drum Brakes

YWZ4 Series – Standard industrial drum brake (Ed 23 to Ed 301)
YWZ8 Series – Compact design drum brake (Ed 23 to Ed 201)
YWZ9 Series – Heavy-duty drum brake with wear compensation (Ed 50 to Ed 630)
YWZ13 Series – Port machinery drum brake (Ed 80 to Ed 301)

Industrial Disc Brakes

Valve & Gate Control

Clamping & Positioning

Thruster Selection Guide: Matching Ed Models to Brake Sizes

Selecting the correct Ed thruster for your brake depends on three key factors: brake size, required braking torque, and duty cycle. Use this guide to find the right match.

Brake Wheel (mm)	Recommended Thruster	Typical Torque Range
100 – 150	Ed 23/5 or Ed 30/5	100 – 210 N·m
200	Ed 30/5 or Ed 50/6	280 – 400 N·m
300	Ed 50/6 or Ed 80/6	630 – 1000 N·m
400	Ed 80/6 or Ed 121/6	1600 – 2500 N·m
500	Ed 121/6 or Ed 201/6	3150 – 5000 N·m
600	Ed 201/6 or Ed 301/6	6300 – 8000 N·m
700 – 800	Ed 301/6 or Ed 630/12	10000 – 16000 N·m

For high-cycle applications (>600 cycles/hour): Select the next size up to ensure adequate thrust margin and prevent thruster overheating.

For low-temperature environments (<-20°C): Specify the R heater option and consider using higher-viscosity hydraulic oil (IS VG 46 winter grade).

Ed Series vs BEd Explosion-Proof vs YT1: Choosing the Right Thruster

Feature	Ed Series	BEd Series (Explosion-Proof)	YT1 Series
Certification	DIN 15430	Ex d IIC T4, ATEX	JB/T 10603
Environment	Standard industrial	Hazardous areas	Standard industrial
Protection	IP65	IP65, Ex-rated	IP54
Max Thrust	6300N	3000N	3200N
Price Point	Premium	Highest	Economical
Best For	DIN-compliant OEM	Gas/dust hazardous zones	Cost-sensitive retrofit

Choose Ed series when: You need DIN 15430 compliance, premium quality, and maximum configuration flexibility for standard industrial braking applications.

Choose BEd series when: Your application is in Zone 1 or Zone 2 hazardous areas where explosion-proof equipment is mandatory (paint spray booths, chemical plants, grain handling).

Choose YT1 series when: You need a cost-effective alternative for standard applications where DIN compliance is not required, and budget is the primary concern.

Maintenance & Troubleshooting

Ed series thrusters are designed for maintenance-free operation, but periodic inspection ensures long service life and prevents unexpected downtime.

Regular Inspection Schedule

Monthly: Visual inspection for oil leaks, verify mounting bolts are tight
Quarterly: Check push rod for scoring or corrosion, verify electrical connections
Annually: Measure extension speed (should be 0.5-2 seconds depending on model), check limit switch operation
Every 2-3 years: Oil change using specified hydraulic oil (IS VG 32 or equivalent)

Common Issues & Solutions

Symptom	Possible Cause	Solution
Thruster won’t release	No power, motor failure, low oil	Check power supply, test motor resistance, add oil if needed
Slow release action	Clogged filter, worn seals, cold oil	Replace oil filter, check seals, use winter-grade oil
Oil leakage around push rod	Worn rod seal	Replace seal kit, inspect push rod surface
Excessive noise/vibration	Mounting misalignment, worn bearings	Realign thruster, replace bearings
Overheating	High duty cycle, low oil, voltage issues	Reduce cycle rate, add/refill oil, check voltage

Frequently Asked Questions

What is the difference between Ed 121/6 and Ed 201/6?

Can Ed thrusters be installed horizontally?

How do I wire an Ed thruster to my brake control circuit?

What hydraulic oil should I use for Ed thrusters?

Can Ed thrusters replace YT1 thrusters directly?

Request a Quote for Ed Series Thrusters

Contact us today to discuss your thruster requirements, request dimensional drawings, or place an order.

Multiple mounting bolt patterns compatible with standard brake installations

Direct replacement for legacy thruster models in retrofit applications

5. Precision Control Accessories

Fine-tune thruster behavior with bolt-on accessories that enhance system control:

H Valve (Ascent Delay): Slows extension speed to prevent load swing during brake release
S Valve (Descent Delay): Controls retraction speed for smooth brake engagement
E1/E2 Limit Switches: Mechanical position feedback for PLC integration
EB Inductive Switch: Contactless sensing for high-cycle applications
R Heater: Ensures reliable cold-weather startup below -20°C

Ed Series Model Specifications

Select the optimal Ed thruster model based on your required thrust, stroke length, and brake wheel size. All models share the same German-engineered quality and DIN 15430 compliance.

Model	Thrust (N)	Stroke (mm)	Power (W)	Weight (kg)	A × K × L (mm)
Ed 23/5	220	50	165	10	286 × 160 × 80
Ed 30/5	300	50	200	14	370 × 160 × 80
Ed 50/6	500	60	210	21	435 × 190 × 95
Ed 80/6	800	60	330	24	450 × 190 × 95
Ed 121/6	1250	60	330	39	645 × 240 × 112
Ed 201/6	2000	60	450	39	645 × 240 × 112
Ed 301/6	3000	60	550	40	645 × 240 × 112
Ed 80/12	800	120	330	27	530 × 190 × 95
Ed 121/12	1250	120	330	39	705 × 240 × 112
Ed 201/12	2000	120	450	39	705 × 240 × 112
Ed 301/12	3000	120	550	40	705 × 240 × 112
Ed 630/12	6300	120	1100	–	865 × 270 × 127

Note: Custom voltages (400V, 415V, 440V) and 60Hz variants available. Contact our engineering team for explosion-proof BEd series models or special configurations.

How Ed Thrusters Work: The Fail-Safe Principle

Brake Release Sequence

Step 1 – Activation: When power is applied, the internal AC motor drives a centrifugal impeller at high speed
Step 2 – Pressure Generation: The spinning impeller creates hydraulic pressure by forcing oil through precision-machined passages
Step 3 – Piston Extension: Hydraulic pressure acts on a precision piston, pushing the push rod outward
Step 4 – Brake Release: The extended push rod overcomes the brake’s main spring force, releasing the brake pads from the drum or disc

Fail-Safe Engagement

The critical safety feature of the Ed thruster is its inherent fail-safe design. When power is removed:

The motor stops and the impeller slows within milliseconds
Hydraulic pressure dissipates instantly as oil flows back through the return path
The brake’s main spring force takes over, pushing the piston and brake mechanism back to the engaged position
The brake engages automatically, safely holding the load without any electrical intervention

Primary Applications

Ed series electro-hydraulic thrusters power braking systems across virtually every industrial sector where lifting, moving, and positioning of heavy loads demands safe, reliable stopping power.

Industrial Drum Brakes

YWZ4 Series – Standard industrial drum brake (Ed 23 to Ed 301)
YWZ8 Series – Compact design drum brake (Ed 23 to Ed 201)
YWZ9 Series – Heavy-duty drum brake with wear compensation (Ed 50 to Ed 630)
YWZ13 Series – Port machinery drum brake (Ed 80 to Ed 301)

Industrial Disc Brakes

Valve & Gate Control

Clamping & Positioning

Thruster Selection Guide: Matching Ed Models to Brake Sizes

Selecting the correct Ed thruster for your brake depends on three key factors: brake size, required braking torque, and duty cycle. Use this guide to find the right match.

Brake Wheel (mm)	Recommended Thruster	Typical Torque Range
100 – 150	Ed 23/5 or Ed 30/5	100 – 210 N·m
200	Ed 30/5 or Ed 50/6	280 – 400 N·m
300	Ed 50/6 or Ed 80/6	630 – 1000 N·m
400	Ed 80/6 or Ed 121/6	1600 – 2500 N·m
500	Ed 121/6 or Ed 201/6	3150 – 5000 N·m
600	Ed 201/6 or Ed 301/6	6300 – 8000 N·m
700 – 800	Ed 301/6 or Ed 630/12	10000 – 16000 N·m

For high-cycle applications (>600 cycles/hour): Select the next size up to ensure adequate thrust margin and prevent thruster overheating.

For low-temperature environments (<-20°C): Specify the R heater option and consider using higher-viscosity hydraulic oil (IS VG 46 winter grade).

Ed Series vs BEd Explosion-Proof vs YT1: Choosing the Right Thruster

Feature	Ed Series	BEd Series (Explosion-Proof)	YT1 Series
Certification	DIN 15430	Ex d IIC T4, ATEX	JB/T 10603
Environment	Standard industrial	Hazardous areas	Standard industrial
Protection	IP65	IP65, Ex-rated	IP54
Max Thrust	6300N	3000N	3200N
Price Point	Premium	Highest	Economical
Best For	DIN-compliant OEM	Gas/dust hazardous zones	Cost-sensitive retrofit

Choose Ed series when: You need DIN 15430 compliance, premium quality, and maximum configuration flexibility for standard industrial braking applications.

Choose BEd series when: Your application is in Zone 1 or Zone 2 hazardous areas where explosion-proof equipment is mandatory (paint spray booths, chemical plants, grain handling).

Choose YT1 series when: You need a cost-effective alternative for standard applications where DIN compliance is not required, and budget is the primary concern.

Maintenance & Troubleshooting

Ed series thrusters are designed for maintenance-free operation, but periodic inspection ensures long service life and prevents unexpected downtime.

Regular Inspection Schedule

Monthly: Visual inspection for oil leaks, verify mounting bolts are tight
Quarterly: Check push rod for scoring or corrosion, verify electrical connections
Annually: Measure extension speed (should be 0.5-2 seconds depending on model), check limit switch operation
Every 2-3 years: Oil change using specified hydraulic oil (IS VG 32 or equivalent)

Common Issues & Solutions

Symptom	Possible Cause	Solution
Thruster won’t release	No power, motor failure, low oil	Check power supply, test motor resistance, add oil if needed
Slow release action	Clogged filter, worn seals, cold oil	Replace oil filter, check seals, use winter-grade oil
Oil leakage around push rod	Worn rod seal	Replace seal kit, inspect push rod surface
Excessive noise/vibration	Mounting misalignment, worn bearings	Realign thruster, replace bearings
Overheating	High duty cycle, low oil, voltage issues	Reduce cycle rate, add/refill oil, check voltage

Frequently Asked Questions

What is the difference between Ed 121/6 and Ed 201/6?

Can Ed thrusters be installed horizontally?

How do I wire an Ed thruster to my brake control circuit?

What hydraulic oil should I use for Ed thrusters?

Can Ed thrusters replace YT1 thrusters directly?

Request a Quote for Ed Series Thrusters

Contact us today to discuss your thruster requirements, request dimensional drawings, or place an order.

Multiple mounting bolt patterns compatible with standard brake installations

Direct replacement for legacy thruster models in retrofit applications

5. Precision Control Accessories

Fine-tune thruster behavior with bolt-on accessories that enhance system control:

H Valve (Ascent Delay): Slows extension speed to prevent load swing during brake release
S Valve (Descent Delay): Controls retraction speed for smooth brake engagement
E1/E2 Limit Switches: Mechanical position feedback for PLC integration
EB Inductive Switch: Contactless sensing for high-cycle applications
R Heater: Ensures reliable cold-weather startup below -20°C

Ed Series Model Specifications

Select the optimal Ed thruster model based on your required thrust, stroke length, and brake wheel size. All models share the same German-engineered quality and DIN 15430 compliance.

Model	Thrust (N)	Stroke (mm)	Power (W)	Weight (kg)	A × K × L (mm)
Ed 23/5	220	50	165	10	286 × 160 × 80
Ed 30/5	300	50	200	14	370 × 160 × 80
Ed 50/6	500	60	210	21	435 × 190 × 95
Ed 80/6	800	60	330	24	450 × 190 × 95
Ed 121/6	1250	60	330	39	645 × 240 × 112
Ed 201/6	2000	60	450	39	645 × 240 × 112
Ed 301/6	3000	60	550	40	645 × 240 × 112
Ed 80/12	800	120	330	27	530 × 190 × 95
Ed 121/12	1250	120	330	39	705 × 240 × 112
Ed 201/12	2000	120	450	39	705 × 240 × 112
Ed 301/12	3000	120	550	40	705 × 240 × 112
Ed 630/12	6300	120	1100	–	865 × 270 × 127

Note: Custom voltages (400V, 415V, 440V) and 60Hz variants available. Contact our engineering team for explosion-proof BEd series models or special configurations.

How Ed Thrusters Work: The Fail-Safe Principle

Brake Release Sequence

Step 1 – Activation: When power is applied, the internal AC motor drives a centrifugal impeller at high speed
Step 2 – Pressure Generation: The spinning impeller creates hydraulic pressure by forcing oil through precision-machined passages
Step 3 – Piston Extension: Hydraulic pressure acts on a precision piston, pushing the push rod outward
Step 4 – Brake Release: The extended push rod overcomes the brake’s main spring force, releasing the brake pads from the drum or disc

Fail-Safe Engagement

The critical safety feature of the Ed thruster is its inherent fail-safe design. When power is removed:

The motor stops and the impeller slows within milliseconds
Hydraulic pressure dissipates instantly as oil flows back through the return path
The brake’s main spring force takes over, pushing the piston and brake mechanism back to the engaged position
The brake engages automatically, safely holding the load without any electrical intervention

Primary Applications

Ed series electro-hydraulic thrusters power braking systems across virtually every industrial sector where lifting, moving, and positioning of heavy loads demands safe, reliable stopping power.

Industrial Drum Brakes

YWZ4 Series – Standard industrial drum brake (Ed 23 to Ed 301)
YWZ8 Series – Compact design drum brake (Ed 23 to Ed 201)
YWZ9 Series – Heavy-duty drum brake with wear compensation (Ed 50 to Ed 630)
YWZ13 Series – Port machinery drum brake (Ed 80 to Ed 301)

Industrial Disc Brakes

Valve & Gate Control

Clamping & Positioning

Thruster Selection Guide: Matching Ed Models to Brake Sizes

Selecting the correct Ed thruster for your brake depends on three key factors: brake size, required braking torque, and duty cycle. Use this guide to find the right match.

Brake Wheel (mm)	Recommended Thruster	Typical Torque Range
100 – 150	Ed 23/5 or Ed 30/5	100 – 210 N·m
200	Ed 30/5 or Ed 50/6	280 – 400 N·m
300	Ed 50/6 or Ed 80/6	630 – 1000 N·m
400	Ed 80/6 or Ed 121/6	1600 – 2500 N·m
500	Ed 121/6 or Ed 201/6	3150 – 5000 N·m
600	Ed 201/6 or Ed 301/6	6300 – 8000 N·m
700 – 800	Ed 301/6 or Ed 630/12	10000 – 16000 N·m

For high-cycle applications (>600 cycles/hour): Select the next size up to ensure adequate thrust margin and prevent thruster overheating.

For low-temperature environments (<-20°C): Specify the R heater option and consider using higher-viscosity hydraulic oil (IS VG 46 winter grade).

Ed Series vs BEd Explosion-Proof vs YT1: Choosing the Right Thruster

Feature	Ed Series	BEd Series (Explosion-Proof)	YT1 Series
Certification	DIN 15430	Ex d IIC T4, ATEX	JB/T 10603
Environment	Standard industrial	Hazardous areas	Standard industrial
Protection	IP65	IP65, Ex-rated	IP54
Max Thrust	6300N	3000N	3200N
Price Point	Premium	Highest	Economical
Best For	DIN-compliant OEM	Gas/dust hazardous zones	Cost-sensitive retrofit

Choose Ed series when: You need DIN 15430 compliance, premium quality, and maximum configuration flexibility for standard industrial braking applications.

Choose BEd series when: Your application is in Zone 1 or Zone 2 hazardous areas where explosion-proof equipment is mandatory (paint spray booths, chemical plants, grain handling).

Choose YT1 series when: You need a cost-effective alternative for standard applications where DIN compliance is not required, and budget is the primary concern.

Maintenance & Troubleshooting

Ed series thrusters are designed for maintenance-free operation, but periodic inspection ensures long service life and prevents unexpected downtime.

Regular Inspection Schedule

Monthly: Visual inspection for oil leaks, verify mounting bolts are tight
Quarterly: Check push rod for scoring or corrosion, verify electrical connections
Annually: Measure extension speed (should be 0.5-2 seconds depending on model), check limit switch operation
Every 2-3 years: Oil change using specified hydraulic oil (IS VG 32 or equivalent)

Common Issues & Solutions

Symptom	Possible Cause	Solution
Thruster won’t release	No power, motor failure, low oil	Check power supply, test motor resistance, add oil if needed
Slow release action	Clogged filter, worn seals, cold oil	Replace oil filter, check seals, use winter-grade oil
Oil leakage around push rod	Worn rod seal	Replace seal kit, inspect push rod surface
Excessive noise/vibration	Mounting misalignment, worn bearings	Realign thruster, replace bearings
Overheating	High duty cycle, low oil, voltage issues	Reduce cycle rate, add/refill oil, check voltage

Frequently Asked Questions

What is the difference between Ed 121/6 and Ed 201/6?

Can Ed thrusters be installed horizontally?

How do I wire an Ed thruster to my brake control circuit?

What hydraulic oil should I use for Ed thrusters?

Can Ed thrusters replace YT1 thrusters directly?

Request a Quote for Ed Series Thrusters

Contact us today to discuss your thruster requirements, request dimensional drawings, or place an order.

90° rotatable mounting base on Ed 50 through Ed 301 models

Multiple mounting bolt patterns compatible with standard brake installations

Direct replacement for legacy thruster models in retrofit applications

5. Precision Control Accessories

Fine-tune thruster behavior with bolt-on accessories that enhance system control:

H Valve (Ascent Delay): Slows extension speed to prevent load swing during brake release
S Valve (Descent Delay): Controls retraction speed for smooth brake engagement
E1/E2 Limit Switches: Mechanical position feedback for PLC integration
EB Inductive Switch: Contactless sensing for high-cycle applications
R Heater: Ensures reliable cold-weather startup below -20°C

Ed Series Model Specifications

Select the optimal Ed thruster model based on your required thrust, stroke length, and brake wheel size. All models share the same German-engineered quality and DIN 15430 compliance.

Model	Thrust (N)	Stroke (mm)	Power (W)	Weight (kg)	A × K × L (mm)
Ed 23/5	220	50	165	10	286 × 160 × 80
Ed 30/5	300	50	200	14	370 × 160 × 80
Ed 50/6	500	60	210	21	435 × 190 × 95
Ed 80/6	800	60	330	24	450 × 190 × 95
Ed 121/6	1250	60	330	39	645 × 240 × 112
Ed 201/6	2000	60	450	39	645 × 240 × 112
Ed 301/6	3000	60	550	40	645 × 240 × 112
Ed 80/12	800	120	330	27	530 × 190 × 95
Ed 121/12	1250	120	330	39	705 × 240 × 112
Ed 201/12	2000	120	450	39	705 × 240 × 112
Ed 301/12	3000	120	550	40	705 × 240 × 112
Ed 630/12	6300	120	1100	–	865 × 270 × 127

Note: Custom voltages (400V, 415V, 440V) and 60Hz variants available. Contact our engineering team for explosion-proof BEd series models or special configurations.

How Ed Thrusters Work: The Fail-Safe Principle

Brake Release Sequence

Step 1 – Activation: When power is applied, the internal AC motor drives a centrifugal impeller at high speed
Step 2 – Pressure Generation: The spinning impeller creates hydraulic pressure by forcing oil through precision-machined passages
Step 3 – Piston Extension: Hydraulic pressure acts on a precision piston, pushing the push rod outward
Step 4 – Brake Release: The extended push rod overcomes the brake’s main spring force, releasing the brake pads from the drum or disc

Fail-Safe Engagement

The critical safety feature of the Ed thruster is its inherent fail-safe design. When power is removed:

The motor stops and the impeller slows within milliseconds
Hydraulic pressure dissipates instantly as oil flows back through the return path
The brake’s main spring force takes over, pushing the piston and brake mechanism back to the engaged position
The brake engages automatically, safely holding the load without any electrical intervention

Primary Applications

Ed series electro-hydraulic thrusters power braking systems across virtually every industrial sector where lifting, moving, and positioning of heavy loads demands safe, reliable stopping power.

Industrial Drum Brakes

YWZ4 Series – Standard industrial drum brake (Ed 23 to Ed 301)
YWZ8 Series – Compact design drum brake (Ed 23 to Ed 201)
YWZ9 Series – Heavy-duty drum brake with wear compensation (Ed 50 to Ed 630)
YWZ13 Series – Port machinery drum brake (Ed 80 to Ed 301)

Industrial Disc Brakes

Valve & Gate Control

Clamping & Positioning

Thruster Selection Guide: Matching Ed Models to Brake Sizes

Selecting the correct Ed thruster for your brake depends on three key factors: brake size, required braking torque, and duty cycle. Use this guide to find the right match.

Brake Wheel (mm)	Recommended Thruster	Typical Torque Range
100 – 150	Ed 23/5 or Ed 30/5	100 – 210 N·m
200	Ed 30/5 or Ed 50/6	280 – 400 N·m
300	Ed 50/6 or Ed 80/6	630 – 1000 N·m
400	Ed 80/6 or Ed 121/6	1600 – 2500 N·m
500	Ed 121/6 or Ed 201/6	3150 – 5000 N·m
600	Ed 201/6 or Ed 301/6	6300 – 8000 N·m
700 – 800	Ed 301/6 or Ed 630/12	10000 – 16000 N·m

For high-cycle applications (>600 cycles/hour): Select the next size up to ensure adequate thrust margin and prevent thruster overheating.

For low-temperature environments (<-20°C): Specify the R heater option and consider using higher-viscosity hydraulic oil (IS VG 46 winter grade).

Ed Series vs BEd Explosion-Proof vs YT1: Choosing the Right Thruster

Feature	Ed Series	BEd Series (Explosion-Proof)	YT1 Series
Certification	DIN 15430	Ex d IIC T4, ATEX	JB/T 10603
Environment	Standard industrial	Hazardous areas	Standard industrial
Protection	IP65	IP65, Ex-rated	IP54
Max Thrust	6300N	3000N	3200N
Price Point	Premium	Highest	Economical
Best For	DIN-compliant OEM	Gas/dust hazardous zones	Cost-sensitive retrofit

Choose Ed series when: You need DIN 15430 compliance, premium quality, and maximum configuration flexibility for standard industrial braking applications.

Choose BEd series when: Your application is in Zone 1 or Zone 2 hazardous areas where explosion-proof equipment is mandatory (paint spray booths, chemical plants, grain handling).

Choose YT1 series when: You need a cost-effective alternative for standard applications where DIN compliance is not required, and budget is the primary concern.

Maintenance & Troubleshooting

Ed series thrusters are designed for maintenance-free operation, but periodic inspection ensures long service life and prevents unexpected downtime.

Regular Inspection Schedule

Monthly: Visual inspection for oil leaks, verify mounting bolts are tight
Quarterly: Check push rod for scoring or corrosion, verify electrical connections
Annually: Measure extension speed (should be 0.5-2 seconds depending on model), check limit switch operation
Every 2-3 years: Oil change using specified hydraulic oil (IS VG 32 or equivalent)

Common Issues & Solutions

Symptom	Possible Cause	Solution
Thruster won’t release	No power, motor failure, low oil	Check power supply, test motor resistance, add oil if needed
Slow release action	Clogged filter, worn seals, cold oil	Replace oil filter, check seals, use winter-grade oil
Oil leakage around push rod	Worn rod seal	Replace seal kit, inspect push rod surface
Excessive noise/vibration	Mounting misalignment, worn bearings	Realign thruster, replace bearings
Overheating	High duty cycle, low oil, voltage issues	Reduce cycle rate, add/refill oil, check voltage

Frequently Asked Questions

What is the difference between Ed 121/6 and Ed 201/6?

Can Ed thrusters be installed horizontally?

How do I wire an Ed thruster to my brake control circuit?

What hydraulic oil should I use for Ed thrusters?

Can Ed thrusters replace YT1 thrusters directly?

Request a Quote for Ed Series Thrusters

Contact us today to discuss your thruster requirements, request dimensional drawings, or place an order.

90° rotatable mounting base on Ed 50 through Ed 301 models

Multiple mounting bolt patterns compatible with standard brake installations

Direct replacement for legacy thruster models in retrofit applications

5. Precision Control Accessories

Fine-tune thruster behavior with bolt-on accessories that enhance system control:

H Valve (Ascent Delay): Slows extension speed to prevent load swing during brake release
S Valve (Descent Delay): Controls retraction speed for smooth brake engagement
E1/E2 Limit Switches: Mechanical position feedback for PLC integration
EB Inductive Switch: Contactless sensing for high-cycle applications
R Heater: Ensures reliable cold-weather startup below -20°C

Ed Series Model Specifications

Select the optimal Ed thruster model based on your required thrust, stroke length, and brake wheel size. All models share the same German-engineered quality and DIN 15430 compliance.

Model	Thrust (N)	Stroke (mm)	Power (W)	Weight (kg)	A × K × L (mm)
Ed 23/5	220	50	165	10	286 × 160 × 80
Ed 30/5	300	50	200	14	370 × 160 × 80
Ed 50/6	500	60	210	21	435 × 190 × 95
Ed 80/6	800	60	330	24	450 × 190 × 95
Ed 121/6	1250	60	330	39	645 × 240 × 112
Ed 201/6	2000	60	450	39	645 × 240 × 112
Ed 301/6	3000	60	550	40	645 × 240 × 112
Ed 80/12	800	120	330	27	530 × 190 × 95
Ed 121/12	1250	120	330	39	705 × 240 × 112
Ed 201/12	2000	120	450	39	705 × 240 × 112
Ed 301/12	3000	120	550	40	705 × 240 × 112
Ed 630/12	6300	120	1100	–	865 × 270 × 127

Note: Custom voltages (400V, 415V, 440V) and 60Hz variants available. Contact our engineering team for explosion-proof BEd series models or special configurations.

How Ed Thrusters Work: The Fail-Safe Principle

Brake Release Sequence

Step 1 – Activation: When power is applied, the internal AC motor drives a centrifugal impeller at high speed
Step 2 – Pressure Generation: The spinning impeller creates hydraulic pressure by forcing oil through precision-machined passages
Step 3 – Piston Extension: Hydraulic pressure acts on a precision piston, pushing the push rod outward
Step 4 – Brake Release: The extended push rod overcomes the brake’s main spring force, releasing the brake pads from the drum or disc

Fail-Safe Engagement

The critical safety feature of the Ed thruster is its inherent fail-safe design. When power is removed:

The motor stops and the impeller slows within milliseconds
Hydraulic pressure dissipates instantly as oil flows back through the return path
The brake’s main spring force takes over, pushing the piston and brake mechanism back to the engaged position
The brake engages automatically, safely holding the load without any electrical intervention

Primary Applications

Ed series electro-hydraulic thrusters power braking systems across virtually every industrial sector where lifting, moving, and positioning of heavy loads demands safe, reliable stopping power.

Industrial Drum Brakes

YWZ4 Series – Standard industrial drum brake (Ed 23 to Ed 301)
YWZ8 Series – Compact design drum brake (Ed 23 to Ed 201)
YWZ9 Series – Heavy-duty drum brake with wear compensation (Ed 50 to Ed 630)
YWZ13 Series – Port machinery drum brake (Ed 80 to Ed 301)

Industrial Disc Brakes

Valve & Gate Control

Clamping & Positioning

Thruster Selection Guide: Matching Ed Models to Brake Sizes

Selecting the correct Ed thruster for your brake depends on three key factors: brake size, required braking torque, and duty cycle. Use this guide to find the right match.

Brake Wheel (mm)	Recommended Thruster	Typical Torque Range
100 – 150	Ed 23/5 or Ed 30/5	100 – 210 N·m
200	Ed 30/5 or Ed 50/6	280 – 400 N·m
300	Ed 50/6 or Ed 80/6	630 – 1000 N·m
400	Ed 80/6 or Ed 121/6	1600 – 2500 N·m
500	Ed 121/6 or Ed 201/6	3150 – 5000 N·m
600	Ed 201/6 or Ed 301/6	6300 – 8000 N·m
700 – 800	Ed 301/6 or Ed 630/12	10000 – 16000 N·m

For high-cycle applications (>600 cycles/hour): Select the next size up to ensure adequate thrust margin and prevent thruster overheating.

For low-temperature environments (<-20°C): Specify the R heater option and consider using higher-viscosity hydraulic oil (IS VG 46 winter grade).

Ed Series vs BEd Explosion-Proof vs YT1: Choosing the Right Thruster

Feature	Ed Series	BEd Series (Explosion-Proof)	YT1 Series
Certification	DIN 15430	Ex d IIC T4, ATEX	JB/T 10603
Environment	Standard industrial	Hazardous areas	Standard industrial
Protection	IP65	IP65, Ex-rated	IP54
Max Thrust	6300N	3000N	3200N
Price Point	Premium	Highest	Economical
Best For	DIN-compliant OEM	Gas/dust hazardous zones	Cost-sensitive retrofit

Choose Ed series when: You need DIN 15430 compliance, premium quality, and maximum configuration flexibility for standard industrial braking applications.

Choose BEd series when: Your application is in Zone 1 or Zone 2 hazardous areas where explosion-proof equipment is mandatory (paint spray booths, chemical plants, grain handling).

Choose YT1 series when: You need a cost-effective alternative for standard applications where DIN compliance is not required, and budget is the primary concern.

Maintenance & Troubleshooting

Ed series thrusters are designed for maintenance-free operation, but periodic inspection ensures long service life and prevents unexpected downtime.

Regular Inspection Schedule

Monthly: Visual inspection for oil leaks, verify mounting bolts are tight
Quarterly: Check push rod for scoring or corrosion, verify electrical connections
Annually: Measure extension speed (should be 0.5-2 seconds depending on model), check limit switch operation
Every 2-3 years: Oil change using specified hydraulic oil (IS VG 32 or equivalent)

Common Issues & Solutions

Symptom	Possible Cause	Solution
Thruster won’t release	No power, motor failure, low oil	Check power supply, test motor resistance, add oil if needed
Slow release action	Clogged filter, worn seals, cold oil	Replace oil filter, check seals, use winter-grade oil
Oil leakage around push rod	Worn rod seal	Replace seal kit, inspect push rod surface
Excessive noise/vibration	Mounting misalignment, worn bearings	Realign thruster, replace bearings
Overheating	High duty cycle, low oil, voltage issues	Reduce cycle rate, add/refill oil, check voltage

Frequently Asked Questions

What is the difference between Ed 121/6 and Ed 201/6?

Can Ed thrusters be installed horizontally?

How do I wire an Ed thruster to my brake control circuit?

What hydraulic oil should I use for Ed thrusters?

Can Ed thrusters replace YT1 thrusters directly?

Request a Quote for Ed Series Thrusters

Contact us today to discuss your thruster requirements, request dimensional drawings, or place an order.

Vertical or horizontal mounting for installation flexibility

90° rotatable mounting base on Ed 50 through Ed 301 models

Multiple mounting bolt patterns compatible with standard brake installations

Direct replacement for legacy thruster models in retrofit applications

5. Precision Control Accessories

Fine-tune thruster behavior with bolt-on accessories that enhance system control:

H Valve (Ascent Delay): Slows extension speed to prevent load swing during brake release
S Valve (Descent Delay): Controls retraction speed for smooth brake engagement
E1/E2 Limit Switches: Mechanical position feedback for PLC integration
EB Inductive Switch: Contactless sensing for high-cycle applications
R Heater: Ensures reliable cold-weather startup below -20°C

Ed Series Model Specifications

Select the optimal Ed thruster model based on your required thrust, stroke length, and brake wheel size. All models share the same German-engineered quality and DIN 15430 compliance.

Model	Thrust (N)	Stroke (mm)	Power (W)	Weight (kg)	A × K × L (mm)
Ed 23/5	220	50	165	10	286 × 160 × 80
Ed 30/5	300	50	200	14	370 × 160 × 80
Ed 50/6	500	60	210	21	435 × 190 × 95
Ed 80/6	800	60	330	24	450 × 190 × 95
Ed 121/6	1250	60	330	39	645 × 240 × 112
Ed 201/6	2000	60	450	39	645 × 240 × 112
Ed 301/6	3000	60	550	40	645 × 240 × 112
Ed 80/12	800	120	330	27	530 × 190 × 95
Ed 121/12	1250	120	330	39	705 × 240 × 112
Ed 201/12	2000	120	450	39	705 × 240 × 112
Ed 301/12	3000	120	550	40	705 × 240 × 112
Ed 630/12	6300	120	1100	–	865 × 270 × 127

Note: Custom voltages (400V, 415V, 440V) and 60Hz variants available. Contact our engineering team for explosion-proof BEd series models or special configurations.

How Ed Thrusters Work: The Fail-Safe Principle

Brake Release Sequence

Step 1 – Activation: When power is applied, the internal AC motor drives a centrifugal impeller at high speed
Step 2 – Pressure Generation: The spinning impeller creates hydraulic pressure by forcing oil through precision-machined passages
Step 3 – Piston Extension: Hydraulic pressure acts on a precision piston, pushing the push rod outward
Step 4 – Brake Release: The extended push rod overcomes the brake’s main spring force, releasing the brake pads from the drum or disc

Fail-Safe Engagement

The critical safety feature of the Ed thruster is its inherent fail-safe design. When power is removed:

The motor stops and the impeller slows within milliseconds
Hydraulic pressure dissipates instantly as oil flows back through the return path
The brake’s main spring force takes over, pushing the piston and brake mechanism back to the engaged position
The brake engages automatically, safely holding the load without any electrical intervention

Primary Applications

Ed series electro-hydraulic thrusters power braking systems across virtually every industrial sector where lifting, moving, and positioning of heavy loads demands safe, reliable stopping power.

Industrial Drum Brakes

YWZ4 Series – Standard industrial drum brake (Ed 23 to Ed 301)
YWZ8 Series – Compact design drum brake (Ed 23 to Ed 201)
YWZ9 Series – Heavy-duty drum brake with wear compensation (Ed 50 to Ed 630)
YWZ13 Series – Port machinery drum brake (Ed 80 to Ed 301)

Industrial Disc Brakes

Valve & Gate Control

Clamping & Positioning

Thruster Selection Guide: Matching Ed Models to Brake Sizes

Selecting the correct Ed thruster for your brake depends on three key factors: brake size, required braking torque, and duty cycle. Use this guide to find the right match.

Brake Wheel (mm)	Recommended Thruster	Typical Torque Range
100 – 150	Ed 23/5 or Ed 30/5	100 – 210 N·m
200	Ed 30/5 or Ed 50/6	280 – 400 N·m
300	Ed 50/6 or Ed 80/6	630 – 1000 N·m
400	Ed 80/6 or Ed 121/6	1600 – 2500 N·m
500	Ed 121/6 or Ed 201/6	3150 – 5000 N·m
600	Ed 201/6 or Ed 301/6	6300 – 8000 N·m
700 – 800	Ed 301/6 or Ed 630/12	10000 – 16000 N·m

For high-cycle applications (>600 cycles/hour): Select the next size up to ensure adequate thrust margin and prevent thruster overheating.

For low-temperature environments (<-20°C): Specify the R heater option and consider using higher-viscosity hydraulic oil (IS VG 46 winter grade).

Ed Series vs BEd Explosion-Proof vs YT1: Choosing the Right Thruster

Feature	Ed Series	BEd Series (Explosion-Proof)	YT1 Series
Certification	DIN 15430	Ex d IIC T4, ATEX	JB/T 10603
Environment	Standard industrial	Hazardous areas	Standard industrial
Protection	IP65	IP65, Ex-rated	IP54
Max Thrust	6300N	3000N	3200N
Price Point	Premium	Highest	Economical
Best For	DIN-compliant OEM	Gas/dust hazardous zones	Cost-sensitive retrofit

Choose Ed series when: You need DIN 15430 compliance, premium quality, and maximum configuration flexibility for standard industrial braking applications.

Choose BEd series when: Your application is in Zone 1 or Zone 2 hazardous areas where explosion-proof equipment is mandatory (paint spray booths, chemical plants, grain handling).

Choose YT1 series when: You need a cost-effective alternative for standard applications where DIN compliance is not required, and budget is the primary concern.

Maintenance & Troubleshooting

Ed series thrusters are designed for maintenance-free operation, but periodic inspection ensures long service life and prevents unexpected downtime.

Regular Inspection Schedule

Monthly: Visual inspection for oil leaks, verify mounting bolts are tight
Quarterly: Check push rod for scoring or corrosion, verify electrical connections
Annually: Measure extension speed (should be 0.5-2 seconds depending on model), check limit switch operation
Every 2-3 years: Oil change using specified hydraulic oil (IS VG 32 or equivalent)

Common Issues & Solutions

Symptom	Possible Cause	Solution
Thruster won’t release	No power, motor failure, low oil	Check power supply, test motor resistance, add oil if needed
Slow release action	Clogged filter, worn seals, cold oil	Replace oil filter, check seals, use winter-grade oil
Oil leakage around push rod	Worn rod seal	Replace seal kit, inspect push rod surface
Excessive noise/vibration	Mounting misalignment, worn bearings	Realign thruster, replace bearings
Overheating	High duty cycle, low oil, voltage issues	Reduce cycle rate, add/refill oil, check voltage

Frequently Asked Questions

What is the difference between Ed 121/6 and Ed 201/6?

Can Ed thrusters be installed horizontally?

How do I wire an Ed thruster to my brake control circuit?

What hydraulic oil should I use for Ed thrusters?

Can Ed thrusters replace YT1 thrusters directly?

Request a Quote for Ed Series Thrusters

Contact us today to discuss your thruster requirements, request dimensional drawings, or place an order.

Vertical or horizontal mounting for installation flexibility
90° rotatable mounting base on Ed 50 through Ed 301 models
Multiple mounting bolt patterns compatible with standard brake installations
Direct replacement for legacy thruster models in retrofit applications

5. Precision Control Accessories

Fine-tune thruster behavior with bolt-on accessories that enhance system control:

H Valve (Ascent Delay): Slows extension speed to prevent load swing during brake release
S Valve (Descent Delay): Controls retraction speed for smooth brake engagement
E1/E2 Limit Switches: Mechanical position feedback for PLC integration
EB Inductive Switch: Contactless sensing for high-cycle applications
R Heater: Ensures reliable cold-weather startup below -20°C

Ed Series Model Specifications

Select the optimal Ed thruster model based on your required thrust, stroke length, and brake wheel size. All models share the same German-engineered quality and DIN 15430 compliance.

Model	Thrust (N)	Stroke (mm)	Power (W)	Weight (kg)	A × K × L (mm)
Ed 23/5	220	50	165	10	286 × 160 × 80
Ed 30/5	300	50	200	14	370 × 160 × 80
Ed 50/6	500	60	210	21	435 × 190 × 95
Ed 80/6	800	60	330	24	450 × 190 × 95
Ed 121/6	1250	60	330	39	645 × 240 × 112
Ed 201/6	2000	60	450	39	645 × 240 × 112
Ed 301/6	3000	60	550	40	645 × 240 × 112
Ed 80/12	800	120	330	27	530 × 190 × 95
Ed 121/12	1250	120	330	39	705 × 240 × 112
Ed 201/12	2000	120	450	39	705 × 240 × 112
Ed 301/12	3000	120	550	40	705 × 240 × 112
Ed 630/12	6300	120	1100	–	865 × 270 × 127

Note: Custom voltages (400V, 415V, 440V) and 60Hz variants available. Contact our engineering team for explosion-proof BEd series models or special configurations.

How Ed Thrusters Work: The Fail-Safe Principle

Brake Release Sequence

Step 1 – Activation: When power is applied, the internal AC motor drives a centrifugal impeller at high speed
Step 2 – Pressure Generation: The spinning impeller creates hydraulic pressure by forcing oil through precision-machined passages
Step 3 – Piston Extension: Hydraulic pressure acts on a precision piston, pushing the push rod outward
Step 4 – Brake Release: The extended push rod overcomes the brake’s main spring force, releasing the brake pads from the drum or disc

Fail-Safe Engagement

The critical safety feature of the Ed thruster is its inherent fail-safe design. When power is removed:

The motor stops and the impeller slows within milliseconds
Hydraulic pressure dissipates instantly as oil flows back through the return path
The brake’s main spring force takes over, pushing the piston and brake mechanism back to the engaged position
The brake engages automatically, safely holding the load without any electrical intervention

Primary Applications

Ed series electro-hydraulic thrusters power braking systems across virtually every industrial sector where lifting, moving, and positioning of heavy loads demands safe, reliable stopping power.

Industrial Drum Brakes

YWZ4 Series – Standard industrial drum brake (Ed 23 to Ed 301)
YWZ8 Series – Compact design drum brake (Ed 23 to Ed 201)
YWZ9 Series – Heavy-duty drum brake with wear compensation (Ed 50 to Ed 630)
YWZ13 Series – Port machinery drum brake (Ed 80 to Ed 301)

Industrial Disc Brakes

Valve & Gate Control

Clamping & Positioning

Thruster Selection Guide: Matching Ed Models to Brake Sizes

Selecting the correct Ed thruster for your brake depends on three key factors: brake size, required braking torque, and duty cycle. Use this guide to find the right match.

Brake Wheel (mm)	Recommended Thruster	Typical Torque Range
100 – 150	Ed 23/5 or Ed 30/5	100 – 210 N·m
200	Ed 30/5 or Ed 50/6	280 – 400 N·m
300	Ed 50/6 or Ed 80/6	630 – 1000 N·m
400	Ed 80/6 or Ed 121/6	1600 – 2500 N·m
500	Ed 121/6 or Ed 201/6	3150 – 5000 N·m
600	Ed 201/6 or Ed 301/6	6300 – 8000 N·m
700 – 800	Ed 301/6 or Ed 630/12	10000 – 16000 N·m

For high-cycle applications (>600 cycles/hour): Select the next size up to ensure adequate thrust margin and prevent thruster overheating.

For low-temperature environments (<-20°C): Specify the R heater option and consider using higher-viscosity hydraulic oil (IS VG 46 winter grade).

Ed Series vs BEd Explosion-Proof vs YT1: Choosing the Right Thruster

Feature	Ed Series	BEd Series (Explosion-Proof)	YT1 Series
Certification	DIN 15430	Ex d IIC T4, ATEX	JB/T 10603
Environment	Standard industrial	Hazardous areas	Standard industrial
Protection	IP65	IP65, Ex-rated	IP54
Max Thrust	6300N	3000N	3200N
Price Point	Premium	Highest	Economical
Best For	DIN-compliant OEM	Gas/dust hazardous zones	Cost-sensitive retrofit

Choose Ed series when: You need DIN 15430 compliance, premium quality, and maximum configuration flexibility for standard industrial braking applications.

Choose BEd series when: Your application is in Zone 1 or Zone 2 hazardous areas where explosion-proof equipment is mandatory (paint spray booths, chemical plants, grain handling).

Choose YT1 series when: You need a cost-effective alternative for standard applications where DIN compliance is not required, and budget is the primary concern.

Maintenance & Troubleshooting

Ed series thrusters are designed for maintenance-free operation, but periodic inspection ensures long service life and prevents unexpected downtime.

Regular Inspection Schedule

Monthly: Visual inspection for oil leaks, verify mounting bolts are tight
Quarterly: Check push rod for scoring or corrosion, verify electrical connections
Annually: Measure extension speed (should be 0.5-2 seconds depending on model), check limit switch operation
Every 2-3 years: Oil change using specified hydraulic oil (IS VG 32 or equivalent)

Common Issues & Solutions

Symptom	Possible Cause	Solution
Thruster won’t release	No power, motor failure, low oil	Check power supply, test motor resistance, add oil if needed
Slow release action	Clogged filter, worn seals, cold oil	Replace oil filter, check seals, use winter-grade oil
Oil leakage around push rod	Worn rod seal	Replace seal kit, inspect push rod surface
Excessive noise/vibration	Mounting misalignment, worn bearings	Realign thruster, replace bearings
Overheating	High duty cycle, low oil, voltage issues	Reduce cycle rate, add/refill oil, check voltage

Frequently Asked Questions

What is the difference between Ed 121/6 and Ed 201/6?

Can Ed thrusters be installed horizontally?

How do I wire an Ed thruster to my brake control circuit?

What hydraulic oil should I use for Ed thrusters?

Can Ed thrusters replace YT1 thrusters directly?

Request a Quote for Ed Series Thrusters

Contact us today to discuss your thruster requirements, request dimensional drawings, or place an order.

Vertical or horizontal mounting for installation flexibility
90° rotatable mounting base on Ed 50 through Ed 301 models
Multiple mounting bolt patterns compatible with standard brake installations
Direct replacement for legacy thruster models in retrofit applications

5. Precision Control Accessories

Fine-tune thruster behavior with bolt-on accessories that enhance system control:

H Valve (Ascent Delay): Slows extension speed to prevent load swing during brake release
S Valve (Descent Delay): Controls retraction speed for smooth brake engagement
E1/E2 Limit Switches: Mechanical position feedback for PLC integration
EB Inductive Switch: Contactless sensing for high-cycle applications
R Heater: Ensures reliable cold-weather startup below -20°C

Ed Series Model Specifications

Select the optimal Ed thruster model based on your required thrust, stroke length, and brake wheel size. All models share the same German-engineered quality and DIN 15430 compliance.

Model	Thrust (N)	Stroke (mm)	Power (W)	Weight (kg)	A × K × L (mm)
Ed 23/5	220	50	165	10	286 × 160 × 80
Ed 30/5	300	50	200	14	370 × 160 × 80
Ed 50/6	500	60	210	21	435 × 190 × 95
Ed 80/6	800	60	330	24	450 × 190 × 95
Ed 121/6	1250	60	330	39	645 × 240 × 112
Ed 201/6	2000	60	450	39	645 × 240 × 112
Ed 301/6	3000	60	550	40	645 × 240 × 112
Ed 80/12	800	120	330	27	530 × 190 × 95
Ed 121/12	1250	120	330	39	705 × 240 × 112
Ed 201/12	2000	120	450	39	705 × 240 × 112
Ed 301/12	3000	120	550	40	705 × 240 × 112
Ed 630/12	6300	120	1100	–	865 × 270 × 127

Note: Custom voltages (400V, 415V, 440V) and 60Hz variants available. Contact our engineering team for explosion-proof BEd series models or special configurations.

How Ed Thrusters Work: The Fail-Safe Principle

Brake Release Sequence

Step 1 – Activation: When power is applied, the internal AC motor drives a centrifugal impeller at high speed
Step 2 – Pressure Generation: The spinning impeller creates hydraulic pressure by forcing oil through precision-machined passages
Step 3 – Piston Extension: Hydraulic pressure acts on a precision piston, pushing the push rod outward
Step 4 – Brake Release: The extended push rod overcomes the brake’s main spring force, releasing the brake pads from the drum or disc

Fail-Safe Engagement

The critical safety feature of the Ed thruster is its inherent fail-safe design. When power is removed:

The motor stops and the impeller slows within milliseconds
Hydraulic pressure dissipates instantly as oil flows back through the return path
The brake’s main spring force takes over, pushing the piston and brake mechanism back to the engaged position
The brake engages automatically, safely holding the load without any electrical intervention

Primary Applications

Ed series electro-hydraulic thrusters power braking systems across virtually every industrial sector where lifting, moving, and positioning of heavy loads demands safe, reliable stopping power.

Industrial Drum Brakes

YWZ4 Series – Standard industrial drum brake (Ed 23 to Ed 301)
YWZ8 Series – Compact design drum brake (Ed 23 to Ed 201)
YWZ9 Series – Heavy-duty drum brake with wear compensation (Ed 50 to Ed 630)
YWZ13 Series – Port machinery drum brake (Ed 80 to Ed 301)

Industrial Disc Brakes

Valve & Gate Control

Clamping & Positioning

Thruster Selection Guide: Matching Ed Models to Brake Sizes

Selecting the correct Ed thruster for your brake depends on three key factors: brake size, required braking torque, and duty cycle. Use this guide to find the right match.

Brake Wheel (mm)	Recommended Thruster	Typical Torque Range
100 – 150	Ed 23/5 or Ed 30/5	100 – 210 N·m
200	Ed 30/5 or Ed 50/6	280 – 400 N·m
300	Ed 50/6 or Ed 80/6	630 – 1000 N·m
400	Ed 80/6 or Ed 121/6	1600 – 2500 N·m
500	Ed 121/6 or Ed 201/6	3150 – 5000 N·m
600	Ed 201/6 or Ed 301/6	6300 – 8000 N·m
700 – 800	Ed 301/6 or Ed 630/12	10000 – 16000 N·m

For high-cycle applications (>600 cycles/hour): Select the next size up to ensure adequate thrust margin and prevent thruster overheating.

For low-temperature environments (<-20°C): Specify the R heater option and consider using higher-viscosity hydraulic oil (IS VG 46 winter grade).

Ed Series vs BEd Explosion-Proof vs YT1: Choosing the Right Thruster

Feature	Ed Series	BEd Series (Explosion-Proof)	YT1 Series
Certification	DIN 15430	Ex d IIC T4, ATEX	JB/T 10603
Environment	Standard industrial	Hazardous areas	Standard industrial
Protection	IP65	IP65, Ex-rated	IP54
Max Thrust	6300N	3000N	3200N
Price Point	Premium	Highest	Economical
Best For	DIN-compliant OEM	Gas/dust hazardous zones	Cost-sensitive retrofit

Choose Ed series when: You need DIN 15430 compliance, premium quality, and maximum configuration flexibility for standard industrial braking applications.

Choose BEd series when: Your application is in Zone 1 or Zone 2 hazardous areas where explosion-proof equipment is mandatory (paint spray booths, chemical plants, grain handling).

Choose YT1 series when: You need a cost-effective alternative for standard applications where DIN compliance is not required, and budget is the primary concern.

Maintenance & Troubleshooting

Ed series thrusters are designed for maintenance-free operation, but periodic inspection ensures long service life and prevents unexpected downtime.

Regular Inspection Schedule

Monthly: Visual inspection for oil leaks, verify mounting bolts are tight
Quarterly: Check push rod for scoring or corrosion, verify electrical connections
Annually: Measure extension speed (should be 0.5-2 seconds depending on model), check limit switch operation
Every 2-3 years: Oil change using specified hydraulic oil (IS VG 32 or equivalent)

Common Issues & Solutions

Symptom	Possible Cause	Solution
Thruster won’t release	No power, motor failure, low oil	Check power supply, test motor resistance, add oil if needed
Slow release action	Clogged filter, worn seals, cold oil	Replace oil filter, check seals, use winter-grade oil
Oil leakage around push rod	Worn rod seal	Replace seal kit, inspect push rod surface
Excessive noise/vibration	Mounting misalignment, worn bearings	Realign thruster, replace bearings
Overheating	High duty cycle, low oil, voltage issues	Reduce cycle rate, add/refill oil, check voltage

Frequently Asked Questions

What is the difference between Ed 121/6 and Ed 201/6?

Can Ed thrusters be installed horizontally?

How do I wire an Ed thruster to my brake control circuit?

What hydraulic oil should I use for Ed thrusters?

Can Ed thrusters replace YT1 thrusters directly?

Request a Quote for Ed Series Thrusters

Contact us today to discuss your thruster requirements, request dimensional drawings, or place an order.

Extends service life in marine, mining, and chemical processing applications

Optional anti-corrosion treatments available for aggressive environments

4. Flexible Installation Options

The Ed series accommodates diverse mounting requirements with flexible orientation options:

Vertical or horizontal mounting for installation flexibility
90° rotatable mounting base on Ed 50 through Ed 301 models
Multiple mounting bolt patterns compatible with standard brake installations
Direct replacement for legacy thruster models in retrofit applications

5. Precision Control Accessories

Fine-tune thruster behavior with bolt-on accessories that enhance system control:

H Valve (Ascent Delay): Slows extension speed to prevent load swing during brake release
S Valve (Descent Delay): Controls retraction speed for smooth brake engagement
E1/E2 Limit Switches: Mechanical position feedback for PLC integration
EB Inductive Switch: Contactless sensing for high-cycle applications
R Heater: Ensures reliable cold-weather startup below -20°C

Ed Series Model Specifications

Select the optimal Ed thruster model based on your required thrust, stroke length, and brake wheel size. All models share the same German-engineered quality and DIN 15430 compliance.

Model	Thrust (N)	Stroke (mm)	Power (W)	Weight (kg)	A × K × L (mm)
Ed 23/5	220	50	165	10	286 × 160 × 80
Ed 30/5	300	50	200	14	370 × 160 × 80
Ed 50/6	500	60	210	21	435 × 190 × 95
Ed 80/6	800	60	330	24	450 × 190 × 95
Ed 121/6	1250	60	330	39	645 × 240 × 112
Ed 201/6	2000	60	450	39	645 × 240 × 112
Ed 301/6	3000	60	550	40	645 × 240 × 112
Ed 80/12	800	120	330	27	530 × 190 × 95
Ed 121/12	1250	120	330	39	705 × 240 × 112
Ed 201/12	2000	120	450	39	705 × 240 × 112
Ed 301/12	3000	120	550	40	705 × 240 × 112
Ed 630/12	6300	120	1100	–	865 × 270 × 127

Note: Custom voltages (400V, 415V, 440V) and 60Hz variants available. Contact our engineering team for explosion-proof BEd series models or special configurations.

How Ed Thrusters Work: The Fail-Safe Principle

Brake Release Sequence

Step 1 – Activation: When power is applied, the internal AC motor drives a centrifugal impeller at high speed
Step 2 – Pressure Generation: The spinning impeller creates hydraulic pressure by forcing oil through precision-machined passages
Step 3 – Piston Extension: Hydraulic pressure acts on a precision piston, pushing the push rod outward
Step 4 – Brake Release: The extended push rod overcomes the brake’s main spring force, releasing the brake pads from the drum or disc

Fail-Safe Engagement

The critical safety feature of the Ed thruster is its inherent fail-safe design. When power is removed:

The motor stops and the impeller slows within milliseconds
Hydraulic pressure dissipates instantly as oil flows back through the return path
The brake’s main spring force takes over, pushing the piston and brake mechanism back to the engaged position
The brake engages automatically, safely holding the load without any electrical intervention

Primary Applications

Ed series electro-hydraulic thrusters power braking systems across virtually every industrial sector where lifting, moving, and positioning of heavy loads demands safe, reliable stopping power.

Industrial Drum Brakes

YWZ4 Series – Standard industrial drum brake (Ed 23 to Ed 301)
YWZ8 Series – Compact design drum brake (Ed 23 to Ed 201)
YWZ9 Series – Heavy-duty drum brake with wear compensation (Ed 50 to Ed 630)
YWZ13 Series – Port machinery drum brake (Ed 80 to Ed 301)

Industrial Disc Brakes

Valve & Gate Control

Clamping & Positioning

Thruster Selection Guide: Matching Ed Models to Brake Sizes

Selecting the correct Ed thruster for your brake depends on three key factors: brake size, required braking torque, and duty cycle. Use this guide to find the right match.

Brake Wheel (mm)	Recommended Thruster	Typical Torque Range
100 – 150	Ed 23/5 or Ed 30/5	100 – 210 N·m
200	Ed 30/5 or Ed 50/6	280 – 400 N·m
300	Ed 50/6 or Ed 80/6	630 – 1000 N·m
400	Ed 80/6 or Ed 121/6	1600 – 2500 N·m
500	Ed 121/6 or Ed 201/6	3150 – 5000 N·m
600	Ed 201/6 or Ed 301/6	6300 – 8000 N·m
700 – 800	Ed 301/6 or Ed 630/12	10000 – 16000 N·m

For high-cycle applications (>600 cycles/hour): Select the next size up to ensure adequate thrust margin and prevent thruster overheating.

For low-temperature environments (<-20°C): Specify the R heater option and consider using higher-viscosity hydraulic oil (IS VG 46 winter grade).

Ed Series vs BEd Explosion-Proof vs YT1: Choosing the Right Thruster

Feature	Ed Series	BEd Series (Explosion-Proof)	YT1 Series
Certification	DIN 15430	Ex d IIC T4, ATEX	JB/T 10603
Environment	Standard industrial	Hazardous areas	Standard industrial
Protection	IP65	IP65, Ex-rated	IP54
Max Thrust	6300N	3000N	3200N
Price Point	Premium	Highest	Economical
Best For	DIN-compliant OEM	Gas/dust hazardous zones	Cost-sensitive retrofit

Choose Ed series when: You need DIN 15430 compliance, premium quality, and maximum configuration flexibility for standard industrial braking applications.

Choose BEd series when: Your application is in Zone 1 or Zone 2 hazardous areas where explosion-proof equipment is mandatory (paint spray booths, chemical plants, grain handling).

Choose YT1 series when: You need a cost-effective alternative for standard applications where DIN compliance is not required, and budget is the primary concern.

Maintenance & Troubleshooting

Ed series thrusters are designed for maintenance-free operation, but periodic inspection ensures long service life and prevents unexpected downtime.

Regular Inspection Schedule

Monthly: Visual inspection for oil leaks, verify mounting bolts are tight
Quarterly: Check push rod for scoring or corrosion, verify electrical connections
Annually: Measure extension speed (should be 0.5-2 seconds depending on model), check limit switch operation
Every 2-3 years: Oil change using specified hydraulic oil (IS VG 32 or equivalent)

Common Issues & Solutions

Symptom	Possible Cause	Solution
Thruster won’t release	No power, motor failure, low oil	Check power supply, test motor resistance, add oil if needed
Slow release action	Clogged filter, worn seals, cold oil	Replace oil filter, check seals, use winter-grade oil
Oil leakage around push rod	Worn rod seal	Replace seal kit, inspect push rod surface
Excessive noise/vibration	Mounting misalignment, worn bearings	Realign thruster, replace bearings
Overheating	High duty cycle, low oil, voltage issues	Reduce cycle rate, add/refill oil, check voltage

Frequently Asked Questions

What is the difference between Ed 121/6 and Ed 201/6?

Can Ed thrusters be installed horizontally?

How do I wire an Ed thruster to my brake control circuit?

What hydraulic oil should I use for Ed thrusters?

Can Ed thrusters replace YT1 thrusters directly?

Request a Quote for Ed Series Thrusters

Contact us today to discuss your thruster requirements, request dimensional drawings, or place an order.

Eliminates oil leaks that plague conventional designs

Extends service life in marine, mining, and chemical processing applications

Optional anti-corrosion treatments available for aggressive environments

4. Flexible Installation Options

The Ed series accommodates diverse mounting requirements with flexible orientation options:

Vertical or horizontal mounting for installation flexibility
90° rotatable mounting base on Ed 50 through Ed 301 models
Multiple mounting bolt patterns compatible with standard brake installations
Direct replacement for legacy thruster models in retrofit applications

5. Precision Control Accessories

Fine-tune thruster behavior with bolt-on accessories that enhance system control:

H Valve (Ascent Delay): Slows extension speed to prevent load swing during brake release
S Valve (Descent Delay): Controls retraction speed for smooth brake engagement
E1/E2 Limit Switches: Mechanical position feedback for PLC integration
EB Inductive Switch: Contactless sensing for high-cycle applications
R Heater: Ensures reliable cold-weather startup below -20°C

Ed Series Model Specifications

Select the optimal Ed thruster model based on your required thrust, stroke length, and brake wheel size. All models share the same German-engineered quality and DIN 15430 compliance.

Model	Thrust (N)	Stroke (mm)	Power (W)	Weight (kg)	A × K × L (mm)
Ed 23/5	220	50	165	10	286 × 160 × 80
Ed 30/5	300	50	200	14	370 × 160 × 80
Ed 50/6	500	60	210	21	435 × 190 × 95
Ed 80/6	800	60	330	24	450 × 190 × 95
Ed 121/6	1250	60	330	39	645 × 240 × 112
Ed 201/6	2000	60	450	39	645 × 240 × 112
Ed 301/6	3000	60	550	40	645 × 240 × 112
Ed 80/12	800	120	330	27	530 × 190 × 95
Ed 121/12	1250	120	330	39	705 × 240 × 112
Ed 201/12	2000	120	450	39	705 × 240 × 112
Ed 301/12	3000	120	550	40	705 × 240 × 112
Ed 630/12	6300	120	1100	–	865 × 270 × 127

Note: Custom voltages (400V, 415V, 440V) and 60Hz variants available. Contact our engineering team for explosion-proof BEd series models or special configurations.

How Ed Thrusters Work: The Fail-Safe Principle

Brake Release Sequence

Step 1 – Activation: When power is applied, the internal AC motor drives a centrifugal impeller at high speed
Step 2 – Pressure Generation: The spinning impeller creates hydraulic pressure by forcing oil through precision-machined passages
Step 3 – Piston Extension: Hydraulic pressure acts on a precision piston, pushing the push rod outward
Step 4 – Brake Release: The extended push rod overcomes the brake’s main spring force, releasing the brake pads from the drum or disc

Fail-Safe Engagement

The critical safety feature of the Ed thruster is its inherent fail-safe design. When power is removed:

The motor stops and the impeller slows within milliseconds
Hydraulic pressure dissipates instantly as oil flows back through the return path
The brake’s main spring force takes over, pushing the piston and brake mechanism back to the engaged position
The brake engages automatically, safely holding the load without any electrical intervention

Primary Applications

Ed series electro-hydraulic thrusters power braking systems across virtually every industrial sector where lifting, moving, and positioning of heavy loads demands safe, reliable stopping power.

Industrial Drum Brakes

YWZ4 Series – Standard industrial drum brake (Ed 23 to Ed 301)
YWZ8 Series – Compact design drum brake (Ed 23 to Ed 201)
YWZ9 Series – Heavy-duty drum brake with wear compensation (Ed 50 to Ed 630)
YWZ13 Series – Port machinery drum brake (Ed 80 to Ed 301)

Industrial Disc Brakes

Valve & Gate Control

Clamping & Positioning

Thruster Selection Guide: Matching Ed Models to Brake Sizes

Selecting the correct Ed thruster for your brake depends on three key factors: brake size, required braking torque, and duty cycle. Use this guide to find the right match.

Brake Wheel (mm)	Recommended Thruster	Typical Torque Range
100 – 150	Ed 23/5 or Ed 30/5	100 – 210 N·m
200	Ed 30/5 or Ed 50/6	280 – 400 N·m
300	Ed 50/6 or Ed 80/6	630 – 1000 N·m
400	Ed 80/6 or Ed 121/6	1600 – 2500 N·m
500	Ed 121/6 or Ed 201/6	3150 – 5000 N·m
600	Ed 201/6 or Ed 301/6	6300 – 8000 N·m
700 – 800	Ed 301/6 or Ed 630/12	10000 – 16000 N·m

For high-cycle applications (>600 cycles/hour): Select the next size up to ensure adequate thrust margin and prevent thruster overheating.

For low-temperature environments (<-20°C): Specify the R heater option and consider using higher-viscosity hydraulic oil (IS VG 46 winter grade).

Ed Series vs BEd Explosion-Proof vs YT1: Choosing the Right Thruster

Feature	Ed Series	BEd Series (Explosion-Proof)	YT1 Series
Certification	DIN 15430	Ex d IIC T4, ATEX	JB/T 10603
Environment	Standard industrial	Hazardous areas	Standard industrial
Protection	IP65	IP65, Ex-rated	IP54
Max Thrust	6300N	3000N	3200N
Price Point	Premium	Highest	Economical
Best For	DIN-compliant OEM	Gas/dust hazardous zones	Cost-sensitive retrofit

Choose Ed series when: You need DIN 15430 compliance, premium quality, and maximum configuration flexibility for standard industrial braking applications.

Choose BEd series when: Your application is in Zone 1 or Zone 2 hazardous areas where explosion-proof equipment is mandatory (paint spray booths, chemical plants, grain handling).

Choose YT1 series when: You need a cost-effective alternative for standard applications where DIN compliance is not required, and budget is the primary concern.

Maintenance & Troubleshooting

Ed series thrusters are designed for maintenance-free operation, but periodic inspection ensures long service life and prevents unexpected downtime.

Regular Inspection Schedule

Monthly: Visual inspection for oil leaks, verify mounting bolts are tight
Quarterly: Check push rod for scoring or corrosion, verify electrical connections
Annually: Measure extension speed (should be 0.5-2 seconds depending on model), check limit switch operation
Every 2-3 years: Oil change using specified hydraulic oil (IS VG 32 or equivalent)

Common Issues & Solutions

Symptom	Possible Cause	Solution
Thruster won’t release	No power, motor failure, low oil	Check power supply, test motor resistance, add oil if needed
Slow release action	Clogged filter, worn seals, cold oil	Replace oil filter, check seals, use winter-grade oil
Oil leakage around push rod	Worn rod seal	Replace seal kit, inspect push rod surface
Excessive noise/vibration	Mounting misalignment, worn bearings	Realign thruster, replace bearings
Overheating	High duty cycle, low oil, voltage issues	Reduce cycle rate, add/refill oil, check voltage

Frequently Asked Questions

What is the difference between Ed 121/6 and Ed 201/6?

Can Ed thrusters be installed horizontally?

How do I wire an Ed thruster to my brake control circuit?

What hydraulic oil should I use for Ed thrusters?

Can Ed thrusters replace YT1 thrusters directly?

Request a Quote for Ed Series Thrusters

Contact us today to discuss your thruster requirements, request dimensional drawings, or place an order.

Eliminates oil leaks that plague conventional designs

Extends service life in marine, mining, and chemical processing applications

Optional anti-corrosion treatments available for aggressive environments

4. Flexible Installation Options

The Ed series accommodates diverse mounting requirements with flexible orientation options:

Vertical or horizontal mounting for installation flexibility
90° rotatable mounting base on Ed 50 through Ed 301 models
Multiple mounting bolt patterns compatible with standard brake installations
Direct replacement for legacy thruster models in retrofit applications

5. Precision Control Accessories

Fine-tune thruster behavior with bolt-on accessories that enhance system control:

H Valve (Ascent Delay): Slows extension speed to prevent load swing during brake release
S Valve (Descent Delay): Controls retraction speed for smooth brake engagement
E1/E2 Limit Switches: Mechanical position feedback for PLC integration
EB Inductive Switch: Contactless sensing for high-cycle applications
R Heater: Ensures reliable cold-weather startup below -20°C

Ed Series Model Specifications

Select the optimal Ed thruster model based on your required thrust, stroke length, and brake wheel size. All models share the same German-engineered quality and DIN 15430 compliance.

Model	Thrust (N)	Stroke (mm)	Power (W)	Weight (kg)	A × K × L (mm)
Ed 23/5	220	50	165	10	286 × 160 × 80
Ed 30/5	300	50	200	14	370 × 160 × 80
Ed 50/6	500	60	210	21	435 × 190 × 95
Ed 80/6	800	60	330	24	450 × 190 × 95
Ed 121/6	1250	60	330	39	645 × 240 × 112
Ed 201/6	2000	60	450	39	645 × 240 × 112
Ed 301/6	3000	60	550	40	645 × 240 × 112
Ed 80/12	800	120	330	27	530 × 190 × 95
Ed 121/12	1250	120	330	39	705 × 240 × 112
Ed 201/12	2000	120	450	39	705 × 240 × 112
Ed 301/12	3000	120	550	40	705 × 240 × 112
Ed 630/12	6300	120	1100	–	865 × 270 × 127

Note: Custom voltages (400V, 415V, 440V) and 60Hz variants available. Contact our engineering team for explosion-proof BEd series models or special configurations.

How Ed Thrusters Work: The Fail-Safe Principle

Brake Release Sequence

Step 1 – Activation: When power is applied, the internal AC motor drives a centrifugal impeller at high speed
Step 2 – Pressure Generation: The spinning impeller creates hydraulic pressure by forcing oil through precision-machined passages
Step 3 – Piston Extension: Hydraulic pressure acts on a precision piston, pushing the push rod outward
Step 4 – Brake Release: The extended push rod overcomes the brake’s main spring force, releasing the brake pads from the drum or disc

Fail-Safe Engagement

The critical safety feature of the Ed thruster is its inherent fail-safe design. When power is removed:

The motor stops and the impeller slows within milliseconds
Hydraulic pressure dissipates instantly as oil flows back through the return path
The brake’s main spring force takes over, pushing the piston and brake mechanism back to the engaged position
The brake engages automatically, safely holding the load without any electrical intervention

Primary Applications

Ed series electro-hydraulic thrusters power braking systems across virtually every industrial sector where lifting, moving, and positioning of heavy loads demands safe, reliable stopping power.

Industrial Drum Brakes

YWZ4 Series – Standard industrial drum brake (Ed 23 to Ed 301)
YWZ8 Series – Compact design drum brake (Ed 23 to Ed 201)
YWZ9 Series – Heavy-duty drum brake with wear compensation (Ed 50 to Ed 630)
YWZ13 Series – Port machinery drum brake (Ed 80 to Ed 301)

Industrial Disc Brakes

Valve & Gate Control

Clamping & Positioning

Thruster Selection Guide: Matching Ed Models to Brake Sizes

Selecting the correct Ed thruster for your brake depends on three key factors: brake size, required braking torque, and duty cycle. Use this guide to find the right match.

Brake Wheel (mm)	Recommended Thruster	Typical Torque Range
100 – 150	Ed 23/5 or Ed 30/5	100 – 210 N·m
200	Ed 30/5 or Ed 50/6	280 – 400 N·m
300	Ed 50/6 or Ed 80/6	630 – 1000 N·m
400	Ed 80/6 or Ed 121/6	1600 – 2500 N·m
500	Ed 121/6 or Ed 201/6	3150 – 5000 N·m
600	Ed 201/6 or Ed 301/6	6300 – 8000 N·m
700 – 800	Ed 301/6 or Ed 630/12	10000 – 16000 N·m

For high-cycle applications (>600 cycles/hour): Select the next size up to ensure adequate thrust margin and prevent thruster overheating.

For low-temperature environments (<-20°C): Specify the R heater option and consider using higher-viscosity hydraulic oil (IS VG 46 winter grade).

Ed Series vs BEd Explosion-Proof vs YT1: Choosing the Right Thruster

Feature	Ed Series	BEd Series (Explosion-Proof)	YT1 Series
Certification	DIN 15430	Ex d IIC T4, ATEX	JB/T 10603
Environment	Standard industrial	Hazardous areas	Standard industrial
Protection	IP65	IP65, Ex-rated	IP54
Max Thrust	6300N	3000N	3200N
Price Point	Premium	Highest	Economical
Best For	DIN-compliant OEM	Gas/dust hazardous zones	Cost-sensitive retrofit

Choose Ed series when: You need DIN 15430 compliance, premium quality, and maximum configuration flexibility for standard industrial braking applications.

Choose BEd series when: Your application is in Zone 1 or Zone 2 hazardous areas where explosion-proof equipment is mandatory (paint spray booths, chemical plants, grain handling).

Choose YT1 series when: You need a cost-effective alternative for standard applications where DIN compliance is not required, and budget is the primary concern.

Maintenance & Troubleshooting

Ed series thrusters are designed for maintenance-free operation, but periodic inspection ensures long service life and prevents unexpected downtime.

Regular Inspection Schedule

Monthly: Visual inspection for oil leaks, verify mounting bolts are tight
Quarterly: Check push rod for scoring or corrosion, verify electrical connections
Annually: Measure extension speed (should be 0.5-2 seconds depending on model), check limit switch operation
Every 2-3 years: Oil change using specified hydraulic oil (IS VG 32 or equivalent)

Common Issues & Solutions

Symptom	Possible Cause	Solution
Thruster won’t release	No power, motor failure, low oil	Check power supply, test motor resistance, add oil if needed
Slow release action	Clogged filter, worn seals, cold oil	Replace oil filter, check seals, use winter-grade oil
Oil leakage around push rod	Worn rod seal	Replace seal kit, inspect push rod surface
Excessive noise/vibration	Mounting misalignment, worn bearings	Realign thruster, replace bearings
Overheating	High duty cycle, low oil, voltage issues	Reduce cycle rate, add/refill oil, check voltage

Frequently Asked Questions

What is the difference between Ed 121/6 and Ed 201/6?

Can Ed thrusters be installed horizontally?

How do I wire an Ed thruster to my brake control circuit?

What hydraulic oil should I use for Ed thrusters?

Can Ed thrusters replace YT1 thrusters directly?

Request a Quote for Ed Series Thrusters

Contact us today to discuss your thruster requirements, request dimensional drawings, or place an order.

Prevents contamination from dust, humidity, and corrosive atmospheres

Eliminates oil leaks that plague conventional designs

Extends service life in marine, mining, and chemical processing applications

Optional anti-corrosion treatments available for aggressive environments

4. Flexible Installation Options

The Ed series accommodates diverse mounting requirements with flexible orientation options:

Vertical or horizontal mounting for installation flexibility
90° rotatable mounting base on Ed 50 through Ed 301 models
Multiple mounting bolt patterns compatible with standard brake installations
Direct replacement for legacy thruster models in retrofit applications

5. Precision Control Accessories

Fine-tune thruster behavior with bolt-on accessories that enhance system control:

H Valve (Ascent Delay): Slows extension speed to prevent load swing during brake release
S Valve (Descent Delay): Controls retraction speed for smooth brake engagement
E1/E2 Limit Switches: Mechanical position feedback for PLC integration
EB Inductive Switch: Contactless sensing for high-cycle applications
R Heater: Ensures reliable cold-weather startup below -20°C

Ed Series Model Specifications

Select the optimal Ed thruster model based on your required thrust, stroke length, and brake wheel size. All models share the same German-engineered quality and DIN 15430 compliance.

Model	Thrust (N)	Stroke (mm)	Power (W)	Weight (kg)	A × K × L (mm)
Ed 23/5	220	50	165	10	286 × 160 × 80
Ed 30/5	300	50	200	14	370 × 160 × 80
Ed 50/6	500	60	210	21	435 × 190 × 95
Ed 80/6	800	60	330	24	450 × 190 × 95
Ed 121/6	1250	60	330	39	645 × 240 × 112
Ed 201/6	2000	60	450	39	645 × 240 × 112
Ed 301/6	3000	60	550	40	645 × 240 × 112
Ed 80/12	800	120	330	27	530 × 190 × 95
Ed 121/12	1250	120	330	39	705 × 240 × 112
Ed 201/12	2000	120	450	39	705 × 240 × 112
Ed 301/12	3000	120	550	40	705 × 240 × 112
Ed 630/12	6300	120	1100	–	865 × 270 × 127

Note: Custom voltages (400V, 415V, 440V) and 60Hz variants available. Contact our engineering team for explosion-proof BEd series models or special configurations.

How Ed Thrusters Work: The Fail-Safe Principle

Brake Release Sequence

Step 1 – Activation: When power is applied, the internal AC motor drives a centrifugal impeller at high speed
Step 2 – Pressure Generation: The spinning impeller creates hydraulic pressure by forcing oil through precision-machined passages
Step 3 – Piston Extension: Hydraulic pressure acts on a precision piston, pushing the push rod outward
Step 4 – Brake Release: The extended push rod overcomes the brake’s main spring force, releasing the brake pads from the drum or disc

Fail-Safe Engagement

The critical safety feature of the Ed thruster is its inherent fail-safe design. When power is removed:

The motor stops and the impeller slows within milliseconds
Hydraulic pressure dissipates instantly as oil flows back through the return path
The brake’s main spring force takes over, pushing the piston and brake mechanism back to the engaged position
The brake engages automatically, safely holding the load without any electrical intervention

Primary Applications

Ed series electro-hydraulic thrusters power braking systems across virtually every industrial sector where lifting, moving, and positioning of heavy loads demands safe, reliable stopping power.

Industrial Drum Brakes

YWZ4 Series – Standard industrial drum brake (Ed 23 to Ed 301)
YWZ8 Series – Compact design drum brake (Ed 23 to Ed 201)
YWZ9 Series – Heavy-duty drum brake with wear compensation (Ed 50 to Ed 630)
YWZ13 Series – Port machinery drum brake (Ed 80 to Ed 301)

Industrial Disc Brakes

Valve & Gate Control

Clamping & Positioning

Thruster Selection Guide: Matching Ed Models to Brake Sizes

Selecting the correct Ed thruster for your brake depends on three key factors: brake size, required braking torque, and duty cycle. Use this guide to find the right match.

Brake Wheel (mm)	Recommended Thruster	Typical Torque Range
100 – 150	Ed 23/5 or Ed 30/5	100 – 210 N·m
200	Ed 30/5 or Ed 50/6	280 – 400 N·m
300	Ed 50/6 or Ed 80/6	630 – 1000 N·m
400	Ed 80/6 or Ed 121/6	1600 – 2500 N·m
500	Ed 121/6 or Ed 201/6	3150 – 5000 N·m
600	Ed 201/6 or Ed 301/6	6300 – 8000 N·m
700 – 800	Ed 301/6 or Ed 630/12	10000 – 16000 N·m

For high-cycle applications (>600 cycles/hour): Select the next size up to ensure adequate thrust margin and prevent thruster overheating.

For low-temperature environments (<-20°C): Specify the R heater option and consider using higher-viscosity hydraulic oil (IS VG 46 winter grade).

Ed Series vs BEd Explosion-Proof vs YT1: Choosing the Right Thruster

Feature	Ed Series	BEd Series (Explosion-Proof)	YT1 Series
Certification	DIN 15430	Ex d IIC T4, ATEX	JB/T 10603
Environment	Standard industrial	Hazardous areas	Standard industrial
Protection	IP65	IP65, Ex-rated	IP54
Max Thrust	6300N	3000N	3200N
Price Point	Premium	Highest	Economical
Best For	DIN-compliant OEM	Gas/dust hazardous zones	Cost-sensitive retrofit

Choose Ed series when: You need DIN 15430 compliance, premium quality, and maximum configuration flexibility for standard industrial braking applications.

Choose BEd series when: Your application is in Zone 1 or Zone 2 hazardous areas where explosion-proof equipment is mandatory (paint spray booths, chemical plants, grain handling).

Choose YT1 series when: You need a cost-effective alternative for standard applications where DIN compliance is not required, and budget is the primary concern.

Maintenance & Troubleshooting

Ed series thrusters are designed for maintenance-free operation, but periodic inspection ensures long service life and prevents unexpected downtime.

Regular Inspection Schedule

Monthly: Visual inspection for oil leaks, verify mounting bolts are tight
Quarterly: Check push rod for scoring or corrosion, verify electrical connections
Annually: Measure extension speed (should be 0.5-2 seconds depending on model), check limit switch operation
Every 2-3 years: Oil change using specified hydraulic oil (IS VG 32 or equivalent)

Common Issues & Solutions

Symptom	Possible Cause	Solution
Thruster won’t release	No power, motor failure, low oil	Check power supply, test motor resistance, add oil if needed
Slow release action	Clogged filter, worn seals, cold oil	Replace oil filter, check seals, use winter-grade oil
Oil leakage around push rod	Worn rod seal	Replace seal kit, inspect push rod surface
Excessive noise/vibration	Mounting misalignment, worn bearings	Realign thruster, replace bearings
Overheating	High duty cycle, low oil, voltage issues	Reduce cycle rate, add/refill oil, check voltage

Frequently Asked Questions

What is the difference between Ed 121/6 and Ed 201/6?

Can Ed thrusters be installed horizontally?

How do I wire an Ed thruster to my brake control circuit?

What hydraulic oil should I use for Ed thrusters?

Can Ed thrusters replace YT1 thrusters directly?

Request a Quote for Ed Series Thrusters

Contact us today to discuss your thruster requirements, request dimensional drawings, or place an order.

Prevents contamination from dust, humidity, and corrosive atmospheres
Eliminates oil leaks that plague conventional designs
Extends service life in marine, mining, and chemical processing applications
Optional anti-corrosion treatments available for aggressive environments

4. Flexible Installation Options

The Ed series accommodates diverse mounting requirements with flexible orientation options:

Vertical or horizontal mounting for installation flexibility
90° rotatable mounting base on Ed 50 through Ed 301 models
Multiple mounting bolt patterns compatible with standard brake installations
Direct replacement for legacy thruster models in retrofit applications

5. Precision Control Accessories

Fine-tune thruster behavior with bolt-on accessories that enhance system control:

H Valve (Ascent Delay): Slows extension speed to prevent load swing during brake release
S Valve (Descent Delay): Controls retraction speed for smooth brake engagement
E1/E2 Limit Switches: Mechanical position feedback for PLC integration
EB Inductive Switch: Contactless sensing for high-cycle applications
R Heater: Ensures reliable cold-weather startup below -20°C

Ed Series Model Specifications

Select the optimal Ed thruster model based on your required thrust, stroke length, and brake wheel size. All models share the same German-engineered quality and DIN 15430 compliance.

Model	Thrust (N)	Stroke (mm)	Power (W)	Weight (kg)	A × K × L (mm)
Ed 23/5	220	50	165	10	286 × 160 × 80
Ed 30/5	300	50	200	14	370 × 160 × 80
Ed 50/6	500	60	210	21	435 × 190 × 95
Ed 80/6	800	60	330	24	450 × 190 × 95
Ed 121/6	1250	60	330	39	645 × 240 × 112
Ed 201/6	2000	60	450	39	645 × 240 × 112
Ed 301/6	3000	60	550	40	645 × 240 × 112
Ed 80/12	800	120	330	27	530 × 190 × 95
Ed 121/12	1250	120	330	39	705 × 240 × 112
Ed 201/12	2000	120	450	39	705 × 240 × 112
Ed 301/12	3000	120	550	40	705 × 240 × 112
Ed 630/12	6300	120	1100	–	865 × 270 × 127

Note: Custom voltages (400V, 415V, 440V) and 60Hz variants available. Contact our engineering team for explosion-proof BEd series models or special configurations.

How Ed Thrusters Work: The Fail-Safe Principle

Brake Release Sequence

Step 1 – Activation: When power is applied, the internal AC motor drives a centrifugal impeller at high speed
Step 2 – Pressure Generation: The spinning impeller creates hydraulic pressure by forcing oil through precision-machined passages
Step 3 – Piston Extension: Hydraulic pressure acts on a precision piston, pushing the push rod outward
Step 4 – Brake Release: The extended push rod overcomes the brake’s main spring force, releasing the brake pads from the drum or disc

Fail-Safe Engagement

The critical safety feature of the Ed thruster is its inherent fail-safe design. When power is removed:

The motor stops and the impeller slows within milliseconds
Hydraulic pressure dissipates instantly as oil flows back through the return path
The brake’s main spring force takes over, pushing the piston and brake mechanism back to the engaged position
The brake engages automatically, safely holding the load without any electrical intervention

Primary Applications

Ed series electro-hydraulic thrusters power braking systems across virtually every industrial sector where lifting, moving, and positioning of heavy loads demands safe, reliable stopping power.

Industrial Drum Brakes

YWZ4 Series – Standard industrial drum brake (Ed 23 to Ed 301)
YWZ8 Series – Compact design drum brake (Ed 23 to Ed 201)
YWZ9 Series – Heavy-duty drum brake with wear compensation (Ed 50 to Ed 630)
YWZ13 Series – Port machinery drum brake (Ed 80 to Ed 301)

Industrial Disc Brakes

Valve & Gate Control

Clamping & Positioning

Thruster Selection Guide: Matching Ed Models to Brake Sizes

Selecting the correct Ed thruster for your brake depends on three key factors: brake size, required braking torque, and duty cycle. Use this guide to find the right match.

Brake Wheel (mm)	Recommended Thruster	Typical Torque Range
100 – 150	Ed 23/5 or Ed 30/5	100 – 210 N·m
200	Ed 30/5 or Ed 50/6	280 – 400 N·m
300	Ed 50/6 or Ed 80/6	630 – 1000 N·m
400	Ed 80/6 or Ed 121/6	1600 – 2500 N·m
500	Ed 121/6 or Ed 201/6	3150 – 5000 N·m
600	Ed 201/6 or Ed 301/6	6300 – 8000 N·m
700 – 800	Ed 301/6 or Ed 630/12	10000 – 16000 N·m

For high-cycle applications (>600 cycles/hour): Select the next size up to ensure adequate thrust margin and prevent thruster overheating.

For low-temperature environments (<-20°C): Specify the R heater option and consider using higher-viscosity hydraulic oil (IS VG 46 winter grade).

Ed Series vs BEd Explosion-Proof vs YT1: Choosing the Right Thruster

Feature	Ed Series	BEd Series (Explosion-Proof)	YT1 Series
Certification	DIN 15430	Ex d IIC T4, ATEX	JB/T 10603
Environment	Standard industrial	Hazardous areas	Standard industrial
Protection	IP65	IP65, Ex-rated	IP54
Max Thrust	6300N	3000N	3200N
Price Point	Premium	Highest	Economical
Best For	DIN-compliant OEM	Gas/dust hazardous zones	Cost-sensitive retrofit

Choose Ed series when: You need DIN 15430 compliance, premium quality, and maximum configuration flexibility for standard industrial braking applications.

Choose BEd series when: Your application is in Zone 1 or Zone 2 hazardous areas where explosion-proof equipment is mandatory (paint spray booths, chemical plants, grain handling).

Choose YT1 series when: You need a cost-effective alternative for standard applications where DIN compliance is not required, and budget is the primary concern.

Maintenance & Troubleshooting

Ed series thrusters are designed for maintenance-free operation, but periodic inspection ensures long service life and prevents unexpected downtime.

Regular Inspection Schedule

Monthly: Visual inspection for oil leaks, verify mounting bolts are tight
Quarterly: Check push rod for scoring or corrosion, verify electrical connections
Annually: Measure extension speed (should be 0.5-2 seconds depending on model), check limit switch operation
Every 2-3 years: Oil change using specified hydraulic oil (IS VG 32 or equivalent)

Common Issues & Solutions

Symptom	Possible Cause	Solution
Thruster won’t release	No power, motor failure, low oil	Check power supply, test motor resistance, add oil if needed
Slow release action	Clogged filter, worn seals, cold oil	Replace oil filter, check seals, use winter-grade oil
Oil leakage around push rod	Worn rod seal	Replace seal kit, inspect push rod surface
Excessive noise/vibration	Mounting misalignment, worn bearings	Realign thruster, replace bearings
Overheating	High duty cycle, low oil, voltage issues	Reduce cycle rate, add/refill oil, check voltage

Frequently Asked Questions

What is the difference between Ed 121/6 and Ed 201/6?

Can Ed thrusters be installed horizontally?

How do I wire an Ed thruster to my brake control circuit?

What hydraulic oil should I use for Ed thrusters?

Can Ed thrusters replace YT1 thrusters directly?

Request a Quote for Ed Series Thrusters

Contact us today to discuss your thruster requirements, request dimensional drawings, or place an order.

Prevents contamination from dust, humidity, and corrosive atmospheres
Eliminates oil leaks that plague conventional designs
Extends service life in marine, mining, and chemical processing applications
Optional anti-corrosion treatments available for aggressive environments

4. Flexible Installation Options

The Ed series accommodates diverse mounting requirements with flexible orientation options:

Vertical or horizontal mounting for installation flexibility
90° rotatable mounting base on Ed 50 through Ed 301 models
Multiple mounting bolt patterns compatible with standard brake installations
Direct replacement for legacy thruster models in retrofit applications

5. Precision Control Accessories

Fine-tune thruster behavior with bolt-on accessories that enhance system control:

H Valve (Ascent Delay): Slows extension speed to prevent load swing during brake release
S Valve (Descent Delay): Controls retraction speed for smooth brake engagement
E1/E2 Limit Switches: Mechanical position feedback for PLC integration
EB Inductive Switch: Contactless sensing for high-cycle applications
R Heater: Ensures reliable cold-weather startup below -20°C

Ed Series Model Specifications

Select the optimal Ed thruster model based on your required thrust, stroke length, and brake wheel size. All models share the same German-engineered quality and DIN 15430 compliance.

Model	Thrust (N)	Stroke (mm)	Power (W)	Weight (kg)	A × K × L (mm)
Ed 23/5	220	50	165	10	286 × 160 × 80
Ed 30/5	300	50	200	14	370 × 160 × 80
Ed 50/6	500	60	210	21	435 × 190 × 95
Ed 80/6	800	60	330	24	450 × 190 × 95
Ed 121/6	1250	60	330	39	645 × 240 × 112
Ed 201/6	2000	60	450	39	645 × 240 × 112
Ed 301/6	3000	60	550	40	645 × 240 × 112
Ed 80/12	800	120	330	27	530 × 190 × 95
Ed 121/12	1250	120	330	39	705 × 240 × 112
Ed 201/12	2000	120	450	39	705 × 240 × 112
Ed 301/12	3000	120	550	40	705 × 240 × 112
Ed 630/12	6300	120	1100	–	865 × 270 × 127

Note: Custom voltages (400V, 415V, 440V) and 60Hz variants available. Contact our engineering team for explosion-proof BEd series models or special configurations.

How Ed Thrusters Work: The Fail-Safe Principle

Brake Release Sequence

Step 1 – Activation: When power is applied, the internal AC motor drives a centrifugal impeller at high speed
Step 2 – Pressure Generation: The spinning impeller creates hydraulic pressure by forcing oil through precision-machined passages
Step 3 – Piston Extension: Hydraulic pressure acts on a precision piston, pushing the push rod outward
Step 4 – Brake Release: The extended push rod overcomes the brake’s main spring force, releasing the brake pads from the drum or disc

Fail-Safe Engagement

The critical safety feature of the Ed thruster is its inherent fail-safe design. When power is removed:

The motor stops and the impeller slows within milliseconds
Hydraulic pressure dissipates instantly as oil flows back through the return path
The brake’s main spring force takes over, pushing the piston and brake mechanism back to the engaged position
The brake engages automatically, safely holding the load without any electrical intervention

Primary Applications

Ed series electro-hydraulic thrusters power braking systems across virtually every industrial sector where lifting, moving, and positioning of heavy loads demands safe, reliable stopping power.

Industrial Drum Brakes

YWZ4 Series – Standard industrial drum brake (Ed 23 to Ed 301)
YWZ8 Series – Compact design drum brake (Ed 23 to Ed 201)
YWZ9 Series – Heavy-duty drum brake with wear compensation (Ed 50 to Ed 630)
YWZ13 Series – Port machinery drum brake (Ed 80 to Ed 301)

Industrial Disc Brakes

Valve & Gate Control

Clamping & Positioning

Thruster Selection Guide: Matching Ed Models to Brake Sizes

Selecting the correct Ed thruster for your brake depends on three key factors: brake size, required braking torque, and duty cycle. Use this guide to find the right match.

Brake Wheel (mm)	Recommended Thruster	Typical Torque Range
100 – 150	Ed 23/5 or Ed 30/5	100 – 210 N·m
200	Ed 30/5 or Ed 50/6	280 – 400 N·m
300	Ed 50/6 or Ed 80/6	630 – 1000 N·m
400	Ed 80/6 or Ed 121/6	1600 – 2500 N·m
500	Ed 121/6 or Ed 201/6	3150 – 5000 N·m
600	Ed 201/6 or Ed 301/6	6300 – 8000 N·m
700 – 800	Ed 301/6 or Ed 630/12	10000 – 16000 N·m

For high-cycle applications (>600 cycles/hour): Select the next size up to ensure adequate thrust margin and prevent thruster overheating.

For low-temperature environments (<-20°C): Specify the R heater option and consider using higher-viscosity hydraulic oil (IS VG 46 winter grade).

Ed Series vs BEd Explosion-Proof vs YT1: Choosing the Right Thruster

Feature	Ed Series	BEd Series (Explosion-Proof)	YT1 Series
Certification	DIN 15430	Ex d IIC T4, ATEX	JB/T 10603
Environment	Standard industrial	Hazardous areas	Standard industrial
Protection	IP65	IP65, Ex-rated	IP54
Max Thrust	6300N	3000N	3200N
Price Point	Premium	Highest	Economical
Best For	DIN-compliant OEM	Gas/dust hazardous zones	Cost-sensitive retrofit

Choose Ed series when: You need DIN 15430 compliance, premium quality, and maximum configuration flexibility for standard industrial braking applications.

Choose BEd series when: Your application is in Zone 1 or Zone 2 hazardous areas where explosion-proof equipment is mandatory (paint spray booths, chemical plants, grain handling).

Choose YT1 series when: You need a cost-effective alternative for standard applications where DIN compliance is not required, and budget is the primary concern.

Maintenance & Troubleshooting

Ed series thrusters are designed for maintenance-free operation, but periodic inspection ensures long service life and prevents unexpected downtime.

Regular Inspection Schedule

Monthly: Visual inspection for oil leaks, verify mounting bolts are tight
Quarterly: Check push rod for scoring or corrosion, verify electrical connections
Annually: Measure extension speed (should be 0.5-2 seconds depending on model), check limit switch operation
Every 2-3 years: Oil change using specified hydraulic oil (IS VG 32 or equivalent)

Common Issues & Solutions

Symptom	Possible Cause	Solution
Thruster won’t release	No power, motor failure, low oil	Check power supply, test motor resistance, add oil if needed
Slow release action	Clogged filter, worn seals, cold oil	Replace oil filter, check seals, use winter-grade oil
Oil leakage around push rod	Worn rod seal	Replace seal kit, inspect push rod surface
Excessive noise/vibration	Mounting misalignment, worn bearings	Realign thruster, replace bearings
Overheating	High duty cycle, low oil, voltage issues	Reduce cycle rate, add/refill oil, check voltage

Frequently Asked Questions

What is the difference between Ed 121/6 and Ed 201/6?

Can Ed thrusters be installed horizontally?

How do I wire an Ed thruster to my brake control circuit?

What hydraulic oil should I use for Ed thrusters?

Can Ed thrusters replace YT1 thrusters directly?

Request a Quote for Ed Series Thrusters

Contact us today to discuss your thruster requirements, request dimensional drawings, or place an order.

The Ed series electro-hydraulic thruster is the backbone of modern industrial braking systems, providing the precise, powerful, and reliable linear motion that releases spring-applied drum and disc brakes across countless crane and hoist applications worldwide. With a thrust range from 220N to 6300N, DIN 15430 compliance, and a heritage of German engineering excellence, the Ed series sets the standard for brake actuation performance.

As the power unit that releases YWZ4, YWZ8, YWZ9, and other industrial drum brakes, the Ed thruster transforms electrical energy into controlled hydraulic force, enabling the fail-safe spring-applied braking that protects personnel and equipment in every lifting operation. Its robust construction, flexible configuration options, and proven reliability make it the preferred choice for OEM manufacturers and end-users across metallurgy, ports, mining, and general industry.

Technical drawing and dimensions of Ed Series Electro-Hydraulic Thrusters

Key Specifications at a Glance

Parameter	Specification
Thrust Range	220 – 6300 N
Stroke Options	50mm, 60mm, 120mm
Duty Cycle	S3-40% to S3-60% (up to 2000 cycles/hour)
Power Range	165W – 1100W
Insulation Class	F-class (155°C rated)
Protection Grade	IP65 (sealed aluminum alloy)
Standards	DIN 15430, JB/T 10603-2006
Temperature Range	-20°C to +50°C (optional heater to -40°C)

Why Choose Ed Series Electro-Hydraulic Thrusters?

1. German Engineering Heritage

The Ed series is built upon technology originally developed by the former German EMG company, combining decades of refinement with modern manufacturing to deliver uncompromising quality. Every thruster undergoes rigorous testing before shipment, ensuring consistent performance from the first activation to the millionth cycle. This heritage translates to:

Precise manufacturing tolerances for repeatable performance
Optimized hydraulic geometry for maximum efficiency
Proven seal designs that prevent leakage for years of maintenance-free operation

2. High-Durability F-Class Motor

The non-oil-immersed motor design featuring F-class insulation delivers exceptional thermal resistance and longevity. Unlike oil-immersed designs, the Ed motor runs cooler, consumes less oil, and provides easier maintenance access. Key motor benefits include:

F-class insulation rated for 155°C operating temperature
Non-oil-immersed design for cooler operation and extended motor life
Capable of up to 2000 cycles per hour in S3-60% duty applications
Voltage customization available (380V, 400V, 415V, 440V at 50/60Hz)

3. Sealed Construction for Harsh Environments

The fully sealed aluminum alloy shell provides IP65 protection against dust and water ingress, ensuring reliable operation in the most demanding industrial environments. This sealing technology:

Prevents contamination from dust, humidity, and corrosive atmospheres
Eliminates oil leaks that plague conventional designs
Extends service life in marine, mining, and chemical processing applications
Optional anti-corrosion treatments available for aggressive environments

4. Flexible Installation Options

The Ed series accommodates diverse mounting requirements with flexible orientation options:

Vertical or horizontal mounting for installation flexibility
90° rotatable mounting base on Ed 50 through Ed 301 models
Multiple mounting bolt patterns compatible with standard brake installations
Direct replacement for legacy thruster models in retrofit applications

5. Precision Control Accessories

Fine-tune thruster behavior with bolt-on accessories that enhance system control:

H Valve (Ascent Delay): Slows extension speed to prevent load swing during brake release
S Valve (Descent Delay): Controls retraction speed for smooth brake engagement
E1/E2 Limit Switches: Mechanical position feedback for PLC integration
EB Inductive Switch: Contactless sensing for high-cycle applications
R Heater: Ensures reliable cold-weather startup below -20°C

Ed Series Model Specifications

Select the optimal Ed thruster model based on your required thrust, stroke length, and brake wheel size. All models share the same German-engineered quality and DIN 15430 compliance.

Model	Thrust (N)	Stroke (mm)	Power (W)	Weight (kg)	A × K × L (mm)
Ed 23/5	220	50	165	10	286 × 160 × 80
Ed 30/5	300	50	200	14	370 × 160 × 80
Ed 50/6	500	60	210	21	435 × 190 × 95
Ed 80/6	800	60	330	24	450 × 190 × 95
Ed 121/6	1250	60	330	39	645 × 240 × 112
Ed 201/6	2000	60	450	39	645 × 240 × 112
Ed 301/6	3000	60	550	40	645 × 240 × 112
Ed 80/12	800	120	330	27	530 × 190 × 95
Ed 121/12	1250	120	330	39	705 × 240 × 112
Ed 201/12	2000	120	450	39	705 × 240 × 112
Ed 301/12	3000	120	550	40	705 × 240 × 112
Ed 630/12	6300	120	1100	–	865 × 270 × 127

Note: Custom voltages (400V, 415V, 440V) and 60Hz variants available. Contact our engineering team for explosion-proof BEd series models or special configurations.

How Ed Thrusters Work: The Fail-Safe Principle

Brake Release Sequence

Step 1 – Activation: When power is applied, the internal AC motor drives a centrifugal impeller at high speed
Step 2 – Pressure Generation: The spinning impeller creates hydraulic pressure by forcing oil through precision-machined passages
Step 3 – Piston Extension: Hydraulic pressure acts on a precision piston, pushing the push rod outward
Step 4 – Brake Release: The extended push rod overcomes the brake’s main spring force, releasing the brake pads from the drum or disc

Fail-Safe Engagement

The critical safety feature of the Ed thruster is its inherent fail-safe design. When power is removed:

The motor stops and the impeller slows within milliseconds
Hydraulic pressure dissipates instantly as oil flows back through the return path
The brake’s main spring force takes over, pushing the piston and brake mechanism back to the engaged position
The brake engages automatically, safely holding the load without any electrical intervention

Primary Applications

Ed series electro-hydraulic thrusters power braking systems across virtually every industrial sector where lifting, moving, and positioning of heavy loads demands safe, reliable stopping power.

Industrial Drum Brakes

YWZ4 Series – Standard industrial drum brake (Ed 23 to Ed 301)
YWZ8 Series – Compact design drum brake (Ed 23 to Ed 201)
YWZ9 Series – Heavy-duty drum brake with wear compensation (Ed 50 to Ed 630)
YWZ13 Series – Port machinery drum brake (Ed 80 to Ed 301)

Industrial Disc Brakes

Valve & Gate Control

Clamping & Positioning

Thruster Selection Guide: Matching Ed Models to Brake Sizes

Selecting the correct Ed thruster for your brake depends on three key factors: brake size, required braking torque, and duty cycle. Use this guide to find the right match.

Brake Wheel (mm)	Recommended Thruster	Typical Torque Range
100 – 150	Ed 23/5 or Ed 30/5	100 – 210 N·m
200	Ed 30/5 or Ed 50/6	280 – 400 N·m
300	Ed 50/6 or Ed 80/6	630 – 1000 N·m
400	Ed 80/6 or Ed 121/6	1600 – 2500 N·m
500	Ed 121/6 or Ed 201/6	3150 – 5000 N·m
600	Ed 201/6 or Ed 301/6	6300 – 8000 N·m
700 – 800	Ed 301/6 or Ed 630/12	10000 – 16000 N·m

For high-cycle applications (>600 cycles/hour): Select the next size up to ensure adequate thrust margin and prevent thruster overheating.

For low-temperature environments (<-20°C): Specify the R heater option and consider using higher-viscosity hydraulic oil (IS VG 46 winter grade).

Ed Series vs BEd Explosion-Proof vs YT1: Choosing the Right Thruster

Feature	Ed Series	BEd Series (Explosion-Proof)	YT1 Series
Certification	DIN 15430	Ex d IIC T4, ATEX	JB/T 10603
Environment	Standard industrial	Hazardous areas	Standard industrial
Protection	IP65	IP65, Ex-rated	IP54
Max Thrust	6300N	3000N	3200N
Price Point	Premium	Highest	Economical
Best For	DIN-compliant OEM	Gas/dust hazardous zones	Cost-sensitive retrofit

Choose Ed series when: You need DIN 15430 compliance, premium quality, and maximum configuration flexibility for standard industrial braking applications.

Choose BEd series when: Your application is in Zone 1 or Zone 2 hazardous areas where explosion-proof equipment is mandatory (paint spray booths, chemical plants, grain handling).

Choose YT1 series when: You need a cost-effective alternative for standard applications where DIN compliance is not required, and budget is the primary concern.

Maintenance & Troubleshooting

Ed series thrusters are designed for maintenance-free operation, but periodic inspection ensures long service life and prevents unexpected downtime.

Regular Inspection Schedule

Monthly: Visual inspection for oil leaks, verify mounting bolts are tight
Quarterly: Check push rod for scoring or corrosion, verify electrical connections
Annually: Measure extension speed (should be 0.5-2 seconds depending on model), check limit switch operation
Every 2-3 years: Oil change using specified hydraulic oil (IS VG 32 or equivalent)

Common Issues & Solutions

Symptom	Possible Cause	Solution
Thruster won’t release	No power, motor failure, low oil	Check power supply, test motor resistance, add oil if needed
Slow release action	Clogged filter, worn seals, cold oil	Replace oil filter, check seals, use winter-grade oil
Oil leakage around push rod	Worn rod seal	Replace seal kit, inspect push rod surface
Excessive noise/vibration	Mounting misalignment, worn bearings	Realign thruster, replace bearings
Overheating	High duty cycle, low oil, voltage issues	Reduce cycle rate, add/refill oil, check voltage

Frequently Asked Questions

What is the difference between Ed 121/6 and Ed 201/6?

Can Ed thrusters be installed horizontally?

How do I wire an Ed thruster to my brake control circuit?

What hydraulic oil should I use for Ed thrusters?

Can Ed thrusters replace YT1 thrusters directly?

Request a Quote for Ed Series Thrusters

Contact us today to discuss your thruster requirements, request dimensional drawings, or place an order.

5/5 - (3 votes)

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