The distance between the crane hook and the load is known as the “Head Room”. If a specific head room is required, the “Reach” of the chain sling must increase as the angle between the leg increases as shown opposite.
Reach or effective working length (EWL)
The reach of a chain sling is the distance between bearing points of the upper and lower terminal fittings. This distance, commonly known as the “Effective Working Length” should be quoted when ordering slings. Shortening clutches may be fitted to a sling, making the reach adjustable, hence increasing the versatility of the sling.
Uniform Load Method of Rating
All general purpose slings should berated by the uniform load method as shown in the table below.
