The hook brings a lot of convenience to our life, but its inspection is very troublesome, and there are many requirements for its storage. Today, our cable cutter factory will introduce you how to check the hook.
The inspection hook can be divided into several steps:
1. The hook for the human-powered hoisting mechanism is tested with 1.5 times the rated load as the test load.
2. The hook for the power-driven hoisting mechanism is tested with 2 times the rated load as the test load.
After the hook is removed from the inspection load, there shall be no obvious defects and deformations. The increase of the opening degree shall not exceed 0.25% of the original size. For the qualified hook, the marking shall be printed in the low stress area of ​​the hook, including the rated Lifting weight, factory or factory name, inspection mark, production number, etc.
Medium Duty Series,Nylon Caster With Brake,Medium Nylon Caster Wheels,Polyurethane Caster Wheels
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