The hook is often impacted during the operation, and it must be made of high quality carbon steel with good toughness.Ensure the safety, quality and safety factor, and the static load is three times.The weight is from 5 tons to 550 tons.
In case of the following conditions, the hook shall be scrapped:
2. 10% of the original size of the dangerous section;
3. Increase the opening rate by 15% compared with the original size;
4. The torsional deformation of more than 10 °;
5. Plastic deformation in the neck of the dangerous section or hook;
6. The liner shall be scrapped if it wears 50% of the original size;
7. When the plate hook shaft is worn at 50% of the original size, the spindle should be scrapped.
If you want to buy single crane hooks, Contact us.Please be free to buy the single crane hooks with the best price with our professional China manufacturers and suppliers. And the customized products are also offered if you need.