Toolnoza

ENGINEERING TOOL

Hydraulic Cylinder Speed Calculator

Calculate extension and retraction speed, oil volumes and full stroke times.

Hydraulic Cylinder Speed Calculator

FREE ONLINE TOOL
Cylinder cross-section
D = 80 mmd = 40 mmPistonRod

Schematic only, not to scale. Move the piston to explore the two chambers. Calculations use full stroke.

Extension speed

66.3146 mm/s

Retraction speed

88.4194 mm/s

Extension time

7.5398 s

Retraction time

5.6549 s

Extension oil volume

2.5133 L

Retraction oil volume

1.885 L

Formula and assumptions

vext = Q/A; vret = Q/Ar; text = stroke/vext; tret = stroke/vret

Assumes constant inlet flow on each stroke and no leakage. Retraction is faster because the annular area is smaller. Excludes valve limits, acceleration, cushioning and regeneration circuits.

Technical reference: Parker — Hydraulic cylinder formulas

STEP BY STEP

How to use hydraulic cylinder speed calculator

  1. Check the input units and assumptions.
  2. Review the result and example.

IN PRACTICE

Example

80/40 mm, 500 mm stroke, 20 L/min: extension ≈ 66.31 mm/s; retraction ≈ 88.42 mm/s.

GOOD TO KNOW

Which model does this calculator use?

Assumes constant inlet flow on each stroke and no leakage. Retraction is faster because the annular area is smaller. Excludes valve limits, acceleration, cushioning and regeneration circuits.

Practical guides

How to Calculate Hydraulic Accumulator Sizing: Formula & Example →

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