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　　　Hook is an important component of a crane. If the accessories do not meet the standards, it will seriously affect the overall use of the crane. Let’s talk about the relevant knowledge of hooks and precautions for use.

　　The hook is a crane's object pickup and force receiving device, and is combined with a moving pulley to form a hook group, and the heavy objects are lifted through the reel group. The hook is repeatedly affected by impact heavy loads during lifting operations. Once a break occurs, it will cause heavy objects to fall and cause major casualties. Therefore, the hook must have a sufficient bearing capacity, and its strength and toughness are of great significance to the safety operation of the crane.

　　Precautions for use of hooks

　　Procurement of hooks must include the manufacturer's technical proof documents;

　　Before using the hook, it must be carefully checked and cannot be put into use blindly;

　　No overload operations are allowed;

　　Ensure that the hook is firmly fixed, the rotational part is flexible, the surface of the hook is smooth and free of cracks;

　　To prevent the hook from decoupling by itself, A safety device is installed on the hook to prevent accidental decoupling;

　　The defects on the hook must not be re-welded;

　　When there are cracks on the surface of the hook handle, plastic deformation of the hook handle, corrosion of the hook thread, the size of the hook opening exceeds 10% of the basic size before use, the wear of the hook exceeds 5% of the basic size, the size of the hook diameter is greater than 5% of the basic size, and the twisting angle of the hook body exceeds 10°, etc., the hook needs to be scrapped.

　　　Hook is an important component of a crane. If the accessories do not meet the standards, it will seriously affect the overall use of the crane. Let’s talk about the relevant knowledge of hooks and precautions for use.

　　The hook is a crane's object pickup and force receiving device, and is combined with a moving pulley to form a hook group, and the heavy objects are lifted through the reel group. The hook is repeatedly affected by impact heavy loads during lifting operations. Once a break occurs, it will cause heavy objects to fall and cause major casualties. Therefore, the hook must have a sufficient bearing capacity, and its strength and toughness are of great significance to the safety operation of the crane.

　　Precautions for use of hooks

　　Procurement of hooks must include the manufacturer's technical proof documents;

　　Before using the hook, it must be carefully checked and cannot be put into use blindly;

　　No overload operations are allowed;

　　Ensure that the hook is firmly fixed, the rotational part is flexible, the surface of the hook is smooth and free of cracks;

　　To prevent the hook from decoupling by itself, A safety device is installed on the hook to prevent accidental decoupling;

　　The defects on the hook must not be re-welded;

　　When there are cracks on the surface of the hook handle, plastic deformation of the hook handle, corrosion of the hook thread, the size of the hook opening exceeds 10% of the basic size before use, the wear of the hook exceeds 5% of the basic size, the size of the hook diameter is greater than 5% of the basic size, and the twisting angle of the hook body exceeds 10°, etc., the hook needs to be scrapped.