Bolt Size & Torque
Free
Calculate stress area and preload from nominal diameter, pitch, and grade.
CalculatorFree
Hydraulic Cylinder Force & Speed
Compute extend/retract force and speed from pressure and flow.
Calculator tabs
Hydraulic cylinder calculations
Calculate force and speed from pressure, diameters, and flow.
Results
Extend and retract force/speed values.
Extend force
80.4 kN
Retract force
55.0 kN
Extend speed
82.9 mm/s
Retract speed
121.3 mm/s
Hydraulic power
6.67 kW
Formula and variables
Formulas used
F = p * A
v = Q / A
P = p * Q
Variables
- p
- Pressure (Pa).
- A
- Area (m²).
- Q
- Flow rate (m³/s).
Usage notes
- Retract motion uses the annulus area.
- Hydraulic power excludes efficiency losses.
Show reports, charts, and comparison tools
After checking the basic result, open sharing, PDF, method notes, and comparison panels.
Tool-Specific Documentation
Hydraulic Cylinder Force & SpeedScope: What does this tool calculate?
Calculates extend/retract force, speed, and ideal hydraulic power from pressure, bore/rod diameters, and flow.
Assumptions and Units
- Enter pressure in bar, diameters in mm, and flow in L/min; results are shown in kN, mm/s, and kW.
- Extend force uses the bore area, retract force uses the annulus area, and speed is flow divided by the relevant area.
- The ideal model assumes constant pressure and incompressible flow; account for real efficiency losses separately when required.
Limits / Boundaries
- Valve, line, leakage, friction, compressibility, and transient pressure effects are outside this baseline calculation.
- The rod diameter must be smaller than the bore; verify final component selection against supplier data, the circuit, and safety requirements.
Applicable References
- ISO 6020 (hydraulic cylinder sizing reference)
- Verification against manufacturer data and circuit design requirements
Validation Example
Extend/retract area check
| Input | Expected Output |
|---|---|
| p=160 bar, D=80 mm, d=45 mm, Q=25 L/min | Extend force≈80.4 kN; retract force≈55.0 kN |
Note: For real force, account separately for efficiency, friction, and circuit pressure losses.
Version and Update
- Version
- v1.0.0
- Last updated
- 2026-02-07
Similar calculators
Related calculators
Explore calculators with similar categories or tags.
Tolerance Lab
Free
Analyze linear tolerance stacks with worst-case, RSS, and sensitivity contribution views.
Spring Force Chart
Free
Generate an F-x chart from spring constant and displacement.
Tensile Stress
Free
Compute tensile stress from force and cross-section area.
Other picks
These might help too
Review alternative calculators for adjacent needs.
Bending & Deflection
Free
Bending stress and max deflection for a simply supported beam.
Compressor CC
Free
Estimate displacement from bore, stroke, and rpm.
Pipe Pressure Loss
Free
Compute Re, friction factor, and pressure loss via Darcy-Weisbach.
Strength & Statics
Free
Quick strength checks for axial, shear, and buckling.