High Quality large crane lifting swivel hook from china supplier
High Quality large crane lifting swivel hook from china supplier is usually equipped with a safety latch to prevent the disengagement of the lifting wire rope sling, chain or rope to which the load is attached. High Quality large crane lifting swivel hook from china supplier can be classified into single hook and double hooks according to the appearance, forged hooks and casting hooks according to production method. Crane Hook is connected to the crane and the weight of the link, plays a vital role, and must attach importance to the maintenance of it. High Quality large crane lifting swivel hook from china supplier hoisting height limiter or hook locking device failure or damage, the hook absolutely cannot be used.
1.Single hook: Capacity: 5t/6t/10t/12t/16t/20t/25t/32t/40t/50t/63t/80t/100t /125t/160t/200t/250t.
It is easy to produce and use, but its load carrying is not good, so most of time, it only be used at the low capacity working site(less than 80T).
2.Double hook: Capacity: 10t/12t/16t/20t/25t/32t/40t/50t/63t/80t/100t/125t/160t/200t/250t.
When the capacity is large, double hook with symmetrical load carrying will be used.
Discarded standard
High Quality large crane lifting swivel hook from china supplier appears one of the following circumstances shall be discarded:
1. crack.
2. dangerous section of the wear of the size of the original 10%.
3. is compared to the original size is increased by 10%.
4. hook body torsional deformation of more than 10 °.
5. hook dangerous section or hook neck produce plastic deformation.
6. hook threaded corrosion.
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