Wire Rope Calculator
Select rope diameter and grade based on FEM/ISO duty classes.
Calculation Result
ROPE SELECTION
Max Rope Tension:
0.0 kN
Req. Safety Factor:
4.0
0
kN
Min Diameter:
0.0 mm
Select Size:
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Drum D/d Ratio Check
Sheave D/d Ratio Check
FEM 1.001 Duty Class Standards
| Duty Class | Safety Factor (Zp) | Min Drum Ratio (D/d) | Min Sheave Ratio (D/d) |
|---|---|---|---|
| M1 - M3 | 3.0 - 3.5 | 14.0 | 16.0 |
| M4 | 4.0 | 16.0 | 18.0 |
| M5 | 4.5 | 18.0 | 20.0 |
| M6 | 5.0 | 20.0 | 22.4 |
| M7 - M8 | 6.3 - 9.0 | 22.4 | 25.0 |