Topic
overhead or gantry crane
Articles filed under this topic.
If a crane uses a VFD, why is a mechanical brake still required?
A VFD can provide controlled deceleration and even regenerative braking, but it cannot replace the safety function of a mechanical brake. In hoisting, …
Read moreWhy do some cranes require dual brakes on the hoisting mechanism?
Dual brakes (redundant braking) are used when the risk level is high and a single brake is not considered sufficient for safety. On many …
Read moreHow do I select a crane brake using motor power, speed, and gear ratio?
Motor power and speed are useful starting points, but you must translate them into torque at the brake location. First compute motor torque from power …
Read moreIs the safety factor for travel brakes the same as for hoist brakes?
Usually not. Hoist brakes face gravity-driven risk and must prevent load drop, so their safety requirements are typically stricter. Travel brakes …
Read moreWhat safety factor should be used when selecting a crane hoist brake?
Safety factor is the margin between the brake’s rated torque and the maximum torque your hoist may demand in real conditions. For overhead and gantry …
Read moreHow do I calculate required hoist brake torque for an overhead/gantry crane?
Hoist brake torque must be sufficient to safely hold the maximum load and handle the worst-case stopping scenario. Start by determining the load …
Read moreWhat does “spring-applied, power-released” mean in crane braking?
“Spring-applied, power-released” describes a brake design where mechanical springs apply braking force by default, and external power is used only to …
Read moreWhere are electromagnetic motor brakes typically used on overhead cranes?
Electromagnetic motor brakes are commonly used as compact hoist motor brakes or auxiliary brakes on smaller overhead cranes, wire rope hoists, chain …
Read moreAre electro-hydraulic disc brakes better for high-duty hoisting?
In many high-duty hoisting applications, electro-hydraulic disc brakes can provide performance advantages, especially related to heat management and …
Read moreWhere are electro-hydraulic drum (block) brakes commonly used on cranes?
Electro-hydraulic drum (block) brakes are among the most common crane brakes because they combine strong torque output, reliable fail-safe action, and …
Read moreDisc brakes vs drum brakes for overhead and gantry cranes—what’s better?
Both disc brakes and drum brakes are widely used on overhead and gantry cranes, and “better” depends on the duty profile and environment. Disc brakes …
Read moreAre travel brakes and storm brakes the same on gantry cranes?
No. A travel brake is designed to control motion during normal operation—accelerating, decelerating, and stopping the crane along its rails. It’s …
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