The large opening hook is forged from high-quality carbon structural steel or alloy structural steel and subjected to heat treatment. It has the characteristics of small volume, light weight, and high strength. The maximum test load is 2 times the rated load, and the minimum breaking load is 4 times the rated load. Suitable for factories, mines, petroleum, chemical, and ship terminals, etc.

The large opening hook is made of high-quality high-strength alloy steel material, with a high standard of fatigue resistance and wear resistance. It has been certified by Norwegian DNV and ABS, and meets the requirements for offshore use. Designed with four times of Factor of safety
Made of special alloy steel and subjected to strict heat treatment to ensure safe use and product lifespan.
1. Characteristics
The hook is mainly used as a connecting tool in lifting operations. The ultimate working load and applicable range of the use and operation of the hook, as well as the testing and usage basis, have the characteristics of small volume, light weight, and high strength; Overloading is strictly prohibited.
2. Application
Widely used in important industries such as ports, electricity, steel, shipbuilding, petrochemicals, mines, railways, construction, metallurgy and chemical engineering, automobile manufacturing, plastic machinery, industrial control, highways, large cargo transportation, pipeline auxiliary equipment, slope tunnels, shaft treatment and protection, maritime rescue, ocean engineering, airport construction, bridges, aviation, aerospace, venues, and infrastructure engineering, as well as mechanical equipment.
Scrapping of large opening hooks
The hook should be scrapped if one of the following situations occurs:
1. Cracks;
2. The wear of the dangerous section reaches 10% of the original size;
3. The opening degree increases by 15% compared to the original size;
4. Torsional deformation exceeding 10 °;
5. Plastic deformation occurs on the dangerous section or neck of the hook;
When the wear of the plate hook bushing reaches 50% of the original size, the bushing should be scrapped;
When the wear of the plate hook spindle reaches 50% of the original size, the spindle should be scrapped.