Crane Load Capacity Calculator

tons
ft
ft
°
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Calculation Results

0 tons

Based on your inputs, the calculated safe working load is displayed above.

Load Capacity Details

Parameter Value
Maximum Capacity 0 tons
Safe Working Load 0 tons
Utilization Percentage 0%

How It Works +

This calculator determines the safe working load for a crane based on several key parameters:

  • Crane Rated Capacity: The maximum load the crane can lift under ideal conditions
  • Boom Length: The length of the crane’s boom in feet
  • Working Radius: The horizontal distance from the crane’s center to the load
  • Boom Angle: The angle of the boom relative to horizontal
  • Safety Factor: A multiplier applied to ensure safe operation (typically 1.5-2.0)

The calculation uses the formula: Safe Working Load = (Rated Capacity × sin(Boom Angle)) / (Safety Factor × (1 + Radius/Boom Length))

This simplified formula provides a conservative estimate. Always consult manufacturer load charts for precise calculations.

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