A Reliable Solution for Heavy-Duty Industrial Braking
In heavy-duty industrial applications such as crane, mining, and port machinery, the reliability of the braking system is a critical factor in ensuring the safe and efficient operation of equipment. The SDBH-I Series Hydraulic Fail-Safe Disc Brake is designed and manufactured in accordance with the JB/T10917-2008 “Clamp Disc Brake” standard, aiming to provide stable and safe braking protection for various critical industrial equipment. This series of products effectively addresses the stringent challenges of braking performance and reliability in industrial environments through its unique design principles, precise control of operational parameters, and integrated condition monitoring functions.
Core Mechanism: Inherent Failure Protection Capability
The SDBH-I series brakes adopt a normally closed design with a hydraulic release principle. This design ensures that the brakes can automatically and quickly engage the brake disc in unexpected conditions such as power failure, hydraulic system pressure loss, or emergency shutdown. For example, under normal operating conditions, the system maintains the brake in the released state using an operating oil pressure of 8-9.5 MPa (specific to the model, e.g., 8 MPa for SDBH250-I and SDBH365-I, and 9 MPa for SDBH425-I); Once the oil pressure drops below the set threshold or disappears, the brake immediately resets to the engaged state, providing inherent fail-safe protection and effectively reducing safety risks and equipment damage caused by brake failures.
Precision Operation and High Adaptability
- Precise Gap Control: Optimizing Friction Life
- One of the core design features of this series of brakes is its fully automatic position-following mechanism. This mechanism ensures that the single-side clearance between the friction plate and brake disc is precisely controlled within the range of 1mm to 2mm when the brake is in the released state. This precise clearance management effectively prevents common issues such as localized wear or “floating adhesion” of the friction plate in traditional brakes, significantly extending the service life of the friction plate, reducing the frequency of spare part replacements and maintenance costs, and enhancing overall operational efficiency.
- Flexible installation adjustment capability: Adapting to on-site conditions
- Considering the complex installation environments in industrial settings, the SDBH-I series brakes feature adjustable center height. This function allows for fine-tuning of the brake’s height during installation to effectively compensate for any installation errors that may occur on-site. For example, even for different brake models of varying sizes—such as the SDBH250-I model with an L dimension of 595mm, and the SDBH365-I and SDBH425-I models with an L dimension of 790mm—the adjustable feature significantly simplifies on-site alignment and commissioning processes, improving installation efficiency and equipment adaptability.
- Standardized hydraulic interfaces and environmental adaptability:
- All models in the SDBH-I series, including the SDBH250-I, SDBH365-I, and SDBH425-I, demonstrate high standardization and efficiency in hydraulic control: they uniformly adopt a 275ml cylinder opening oil volume, simplifying hydraulic system design and maintenance. Additionally, all models can operate stably within an environmental temperature range of -5°C to 40°C, covering the environmental temperature requirements of most industrial applications.
Intelligent Monitoring and Maintenance Support
The SDBH-I series brakes are equipped with AC/DC wide-voltage opening functionality, ensuring reliable operation under various power supply conditions. The key lies in its integrated wear-sensing switch. This sensor can monitor the wear status of the friction plates in real time and can be connected to the equipment control system to achieve interlock protection and fault alerts. For example, when the wear of the friction plates approaches the safety limit, the system can proactively issue a warning signal, prompting maintenance personnel to perform scheduled replacements to avoid emergency shutdowns caused by unexpected wear. This feature supports condition-based predictive maintenance strategies, effectively reducing the risk of unplanned downtime and thereby improving the overall availability and operational safety of the equipment.
Product Series and Application Compatibility
The SDBH-I series offers models with different rated clamping forces (kN) and braking forces (kN) to meet diverse industrial application requirements:
- SDBH250-I Model: Rated clamping force of 250 kN, generating 180 kN of braking force. Its body weight is 660 kg, with an L1 dimension of 378 mm. This model is commonly used in the hoisting mechanisms of medium and small-sized cranes and in mining winches with relatively moderate power, providing standard safety braking protection for these devices.
- SDBH365-I Model: Clamping force increased to 365 kN, with braking force reaching 262 kN. Although its L dimension is the same as the SDBH425-I at 790 mm, its heavier 720 kg body design and 570 mm L1 dimension make it suitable for hoisting mechanisms of port and terminal handling machinery or medium to large-sized hoists, providing enhanced braking performance.
- SDBH425-I Model: As the model with the strongest braking force in the SDBH-I series, the SDBH425-I has a rated clamping force of up to 425 kN and a braking force of 306 kN. Its L dimension is also 790 mm, but through internal structural reinforcement, the body weight has increased to 730 kg. This model is specifically designed for high-power inclined belt conveyors, large casting cranes, and other heavy-duty, high-inertia equipment, providing exceptional working braking and emergency safety braking capabilities.
Ensuring reliability and performance
The SDBH-I series hydraulic fail-safe disc brakes offer a stable and reliable braking solution for heavy-duty industrial equipment, featuring inherent fail-safe mechanisms, precise braking parameter control, installation adaptability, and intelligent monitoring functions. We are committed to providing products that meet industry standards with transparent performance data, aiming to assist customers in ensuring production safety and optimizing equipment operational efficiency.
For more detailed technical specifications or product selection based on your specific operating conditions, please contact our technical support team.
