FEM Class Calculator
FEM Documentation
Height of lift/Hook travel (m)
Hoisting speed (m/min)
Cycles per hour
Number of working hours per day
Duty factor/Service classification:
LIGHT (k <= 0.50)
STANDARD (0.50 < k <= 0.63)
HEAVY (0.63 < k <= 0.80)
SEVERE (0.80 < k <= 1)
CALCULATE
Operational time hours/day tm
FEM Class