How should “zero-speed brake set” be configured on a VFD hoist to prevent load drift?
To prevent load drift (creep) on a VFD-controlled hoist, the brake must set only when the…
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If a crane uses a VFD, why is a mechanical brake still required?
Learn moreA VFD can provide controlled deceleration and even regenerative braking, but it cannot replace the safety…
Why do some cranes require dual brakes on the hoisting mechanism?
Learn moreDual brakes (redundant braking) are used when the risk level is high and a single brake…
How do I select a crane brake using motor power, speed, and gear ratio?
Learn moreMotor power and speed are useful starting points, but you must translate them into torque at…
Is the safety factor for travel brakes the same as for hoist brakes?
Learn moreUsually not. Hoist brakes face gravity-driven risk and must prevent load drop, so their safety requirements…
What safety factor should be used when selecting a crane hoist brake?
Learn moreSafety factor is the margin between the brake’s rated torque and the maximum torque your hoist…