Eye Size
Eyes should fit freely on the hook.
Snug fits greatly increase eye strain.
Choker Hitch
Tight chokes greatly increase sling stress.
Full wrap before choke gives no-slip lifting.
Sling Load Chart
As the sling-to-load angle decreases, so does the rated capacity of a sling.
Use this chart for all type slings: rope, chain or synthetic web.
Sling-To-Load Angle is always the angle between the sling leg and the horizontal surface.
Sling-To-Load Angle | Sling Lifting Efficiency | Sling Capacity @ 90º | Actual Sling Capacity |
---|---|---|---|
90º | 100.0 | 1000 lbs. | 1000 lbs. |
75º | 96.6% | 1000 lbs. | 966 lbs. |
60º | 86.6% | 1000 lbs. | 866 lbs. |
45º | 70.7% | 1000 lbs. | 707 lbs. |
30º | 50.0% | 1000 lbs. | 500 lbs. |
15º | 25.8% | 1000 lbs. | 258 lbs. |
5º | 8.7% | 1000 lbs. | 87 lbs. |
Warning: Work load limits will be reduced when less than 90° from horizontal angles of less than 30° are not to be used. Inspect before use. Additional requirements and sage operating practices are outlined in current OSHA, Federal Register Part 29, 1910.184 and ASME B30.9 c-2000.Death or injury can occur from improper use or maintenance!