The difference between crane spreaders and rigging
1. First distinguish the crane spreader and crane rigging from the definition.
The crane spreader refers to a rigid pick-up device for lifting and lifting operations.
The crane rigging refers to a combination device that is shackled on the article when the article is lifted, and is called a crane rigging.
2, then distinguish from the composition of the structure
The crane spreader can directly hoist items, mainly including: hooks, grabs, metallurgical fixtures, permanent magnet suckers and special spreaders.
The crane rigging is generally composed of high-intensity disturbance (wire rope, lifting chain, hoisting belt, hoisting rope, etc.) with end slings, hooks, shackles, butterfly buckles, etc.
3, finally from the work load to distinguish
The ultimate working load of the crane rigging is the maximum weight that the single-limbed rigging is allowed to withstand when suspended vertically under normal use conditions.
The maximum safe working load of the crane rigging: In addition to the vertical suspension, there is an angle between the crane rigging point and the item, which causes the rigging to change under force and the maximum mass that can be tolerated in a specific hanging mode. The maximum safe working load called the rigging.
The rated lifting capacity of the crane spreader refers to the maximum weight allowed to bear the object when suspended vertically under normal use conditions.