Essential safety information for proper sling usage and load calculations.
Eyes should fit freely on the hook.
Snug fits greatly increase eye strain.
Tight chokes greatly increase sling stress.
Full wrap before choke gives no-slip lifting.
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 | Lifting Efficiency | Capacity @ 90° | Actual Capacity |
|---|---|---|---|
| 90° | 100.0% | 1000 lbs. | 1000 lbs. |
| 75° | 96.6% | 1000 lbs. | 966 lbs. |
| 60° | 86.6% | 1000 lbs. | 866 lbs. |
| 45° | 70.7% | 1000 lbs. | 707 lbs. |
| 30° | 50.0% | 1000 lbs. | 500 lbs. |
| 15° | 25.8% | 1000 lbs. | 258 lbs. |
| 5° | 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 safe 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!
At 30° angle, your sling only provides 50% of its rated capacity
Always check for damage, wear, or defects before each lift.
Never exceed the rated capacity for your sling configuration.
Never use angles less than 30° from horizontal.
Use corner protectors when lifting loads with sharp edges.