Rated capacities are affected by angle of lift (roundsling to load angle) measured from the horizontal when used with multi-legged roundslings or choker/basket hitches. To determine the actual capacity at a given angle of lift, multiply the original roundsling rating by the appropriate loss factor determined from the table below.
Table II: Sling Angle Chart (Angle of Lift) |
Angle/Degrees Horizontal | Factor | Angle/Degrees | Factor |
90 | 1.000 | 55 | 0.819 |
85 | 0.996 | 50 | 0.766 |
80 | 0.985 | 45 | 0.707 |
75 | 0.966 | 40 | 0.643 |
70 | 0.940 | 35 | 0.574 |
65 | 0.906 | 30 | 0.500 |
Rated Capacity of Choker Hitch |
Angle of Choke (degrees) | Sling Rated Load Factor |
120 – 180 | 1.00 |
105 – 120 | 0.93 |
90 – 105 | 0.87 |