Calculating Line Pull
Winch and Hoist Application Guidelines
Pulling Application Req's
Required Line Pull = W x (GR + CF)
W = Weight
CF = Coefficient of Friction
GR = Grade Resistance
Coefficients of Friction
~.40-.60 Steel on Steel
~.40-.60 Wood on Concrete
~.30-.70 Steel on Concrete
~.02-.05 Load on Wheels
~.05-.10 Load on Rollers
Grade Resistance
| 5 | 0.050 |
| 10 | 0.100 |
| 20 | 0.196 |
| 30 | 0.288 |
| 40 | 0.372 |
| 50 | 0.448 |
| 60 | 0.513 |
| 70 | 0.573 |
| 80 | 0.624 |
| 90 | 0.669 |
| 100 | 0.701 |
| 200 | 0.896 |
| 400 | 0.970 |
| Vertical | 1.000 |
Allied Power Products, Inc. has specialized in providing winches, hoists, capstans and cranes to meet our customers’ specific application requirements for more than 30 years. Contact us today for a solution to your application needs.