Enter the pressure, rod diameter, and piston diameter to calculator the push and pull force of a hydraulic cylinder.
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Hydraulic Force Formula
The following formula is used to calculate the push and pull forces of a hydraulic cylinder.
F = P * (pi*(Dp2 – Dr2)/4)
- where F is the force (lbs, N)
- P is the pressure (psi, N/mm2 )
- Dp is the piston diameter (in,mm)
- Dr is the rod diameter (in,mm)
Hydraulic Force Definition
A hydraulic force is defined as the force required to pull or push a hydraulic cylinder based on pressure, piston diameter, and rod diameter.
How to calculate hydraulic force?
- First, determine the pressure acting on the rod side of the cylinder.
For this example problem, the pressure is measured to be 100 PSI.
- Next, determine the rod diameter.
The rod is measured to have a diameter of 5 in.
- Next, determine the piston diameter.
The piston is measured to have a diameter of 12in.
- Finally, calculate the hydraulic force.
The hydraulic force is calculated using the formula F = P * (pi*(Dp2 – Dr2)/4) = F = 100 * (pi*(122 – 52)/4) = 9436.23 lb-f.
How do you find hydraulic power?
Hydraulic power is different to calculate than hydraulic force. Power is a force applied per unit of time. Most often a hydraulic power is calculated using flow and pressure.
This formula is Power = P*Q where P is the pressure (bars) and Q is the flow rate (L/min).