Why does a DC electromagnetic brake have weak holding or “weak pull-in” on a crane?
A DC electromagnetic brake that pulls in weakly usually points to an electrical supply or air-gap…
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How does electro-hydraulic thruster oil leakage or low oil level affect crane brake performance?
Learn moreOn overhead and gantry cranes, electro-hydraulic thrusters are often used to release drum (block) brakes against…
What risks occur if an electro-hydraulic thruster stroke is insufficient?
Learn moreInsufficient thruster stroke means the brake may not fully release, partially release, or fail to achieve…
If the brake releases slowly, is it an actuator problem or mechanical binding?
Learn moreIt can be either, and the fastest way to diagnose is to separate “power delivery” from…
What are symptoms of a brake not fully releasing (dragging) on cranes?
Learn moreA dragging brake creates continuous friction during motion, causing heat and rapid wear. Typical symptoms include…
What are common causes of load slipping (“creep”) after the hoist brake applies?
Learn moreLoad slipping after brake application indicates insufficient holding torque or unstable friction. Common causes include worn…