When you lift loads with the appropriate lifting
- To enhance safe slinging.
- To provide an adequate radius to enable the sling to pass without unacceptable loss of load carrying capacity.
- To prevent damage to the load.
- To prevent unnecessary damage to the sling
- To help the sling get a good grip on the load, order especially for odd shapes.
Lifting slings which bend around a corner will have its strength reduced, healing and the corner will also put pressure on the links of a chain sling causing them to elongate or deform; or the wires or a wire rope sling to break. For a wire rope sling if the radius is too small the rope could kink –not a good scenario – packing would help to alleviate this problem.
The type of packing to use will depend on the sling type and load to be lifted; common types are rubber, ambulance vehicle tyres, timber blocks, conveyor belts etc. it is a good idea to keep a selection on hand. Whatever packing is used, it must be able to take the crushing forces that will be imposed on it during the lifting operation.
When positioning the packing, you must ensure that it will stay in place throughout the complete lifting operation, packing that falls out could hurt someone, let alone causing the load to become very unstable, and possibly fail. Therefore it is sometimes necessary to secure the packaging by independent means. All sharp edges need to be carefully packed to avoid what could be disastrous damage to the sling. Sharp edges could cause wires to be severed in a wire rope sling, chain links to kink/bend on a chain sling and cut a webbing sling.
Lifting Gear Direct are committed to safe slinging practices, and can supply, inspect and repair all types of lifting slings.