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The crane hook set is one of the important accessories of the crane. The types of hooks are divided into single hooks and double hooks according to their shapes. Because it is often used to lift heavy objects, we have very high safety requirements for it. When the hook group encounters one of the following conditions, it needs to be scrapped.

　1.Crack;

2. The wear of dangerous sections reaches 10% of the original size;

3. The opening is increased by 15% compared to the original size;

　4. Torsional deformation exceeds 10°;

5. Plastic deformation occurs in dangerous sections or hook necks;

6. When the plate hook bushing is worn to 50% of its original size, the bushing should be scrapped;

7. When the plate hook spindle wear reaches 50% of the original size, the spindle should be scrapped.

The crane hook set is one of the important accessories of the crane. The types of hooks are divided into single hooks and double hooks according to their shapes. Because it is often used to lift heavy objects, we have very high safety requirements for it. When the hook group encounters one of the following conditions, it needs to be scrapped.

　1.Crack;

2. The wear of dangerous sections reaches 10% of the original size;

3. The opening is increased by 15% compared to the original size;

　4. Torsional deformation exceeds 10°;

5. Plastic deformation occurs in dangerous sections or hook necks;

6. When the plate hook bushing is worn to 50% of its original size, the bushing should be scrapped;

7. When the plate hook spindle wear reaches 50% of the original size, the spindle should be scrapped.