Hydraulic Systems Calculator

ISO 4413Cylinder / Motor / Pumpbar, L/min

Calculate force, pressure and velocity in hydraulic cylinders; torque, power and flow in motors and pumps; flow velocity and pressure drop in piping per ISO 4413.

Bore diameter

Rod diameter

Stroke

Pressure

bar

Flow rate

lpm

Results side:

Area

mm²

Volume

Force

Time

Velocity

m/s

Induced flow rate

lpm

Area ratio

Formulas

Bore sideRod side

Area

Volume

Force

Time

Velocity

Induced flow rate

Area ratio

Pressure

Flow rate

LegendR = Bore / piston radiusr = Rod radiusA₁ = Bore / piston areaA₂ = Rod annulus areaL = Strokep = PressureV = VolumeQ = Flow ratet = Timeφ = Area ratioF = Forcev = Velocity

Examples

Follow the step-by-step guide below to design an ISO 6020 hydraulic cylinder.

Data

Bore diameter = 160 mmRod diameter = 70 mmStroke = 320 mmPressure = 160 barFlow rate = 120 Lpm

Bore side calculations

Rod side calculations