Calculate boom cylinder force and flow for crane load lifting at various radii
Input Parameters
Results
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Boom Cylinder Force
lb
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Required Bore
in
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Hoist Flow Required
gpm
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Lifting Moment
ft-lb
Reference
Lifting moment = Load × radius + boom weight × (L/2) × cos(angle)
Cylinder force = moment / (lever arm × sin(angle))
Hoist flow for winch motor sized to line speed
Safety factor: 1.25× minimum for crane applications