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Overhead bridge crane hook quality requirements

Jul 04, 2019
Overhead bridge crane hook surface and internal quality requirements:
The surface of the hook should be smooth and no cracks, sharp angles, burrs, peeling and other defects;
 
There shall be no defects such as cracks, white spots and inclusions affecting their safe use inside the hook;
 
The overhead bridge crane hook do not allow welding to repair;
 
The wear of dangerous sections shall not exceed 10% of the original size;
 
The opening degree shall comply with the provisions of GB10051;
 
The torsion deformation of the hook, that is, the torsion angle of the hook body shall not exceed 10 degrees;
 
Overhead brideg crane hooks shall not be plastically deformed; the threads of the hooks shall not be corroded.
 
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