Construction Machinery & Attachments worked example

Hydraulic Cylinder Sizing with hydraulic system pressure of 7,500 psi: a worked example

This scenario runs the hydraulic cylinder sizing calculation on the strong side: hydraulic system pressure of 7,500 psi, with every other input held at its documented default. checking whether a cylinder package has enough force for a carrier and attachment duty cycle

The inputs for this scenario

  • Hydraulic system pressure: 7,500 psi (raised for this scenario; the documented default is 3,000)
  • Effective piston area: 7.1 in² (unchanged)
  • Hydraulic & linkage efficiency: 0.88 x (unchanged)
  • Active cylinders sharing the load: 2 x (unchanged)

Working through the calculation

  • Applying the documented formula (Single-cylinder force after efficiency = hydraulic system pressure × effective piston area × hydraulic and linkage efficiency) to the inputs above produces each figure below.
  • At this operating point the engine returns 93,720 lbf for available cylinder force, the number this scenario is built around.
  • At this operating point the engine returns 46,860 value for single-cylinder force after efficiency.
  • At this operating point the engine returns 2 x for active cylinder count.
  • At this operating point the engine returns 53,250 value for pressure-area product.

How this compares with the baseline

  • Against the tool's baseline example, where hydraulic system pressure sits at 3,000 psi and the headline result is 37,488 lbf, this scenario comes in 150% above the baseline at 93,720 lbf.
  • Use it when selecting a bore size or verifying breakout, crowd, curl or clamp force against the machine's available relief pressure. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

  • available cylinder force: 93,720 lbf (headline result)
  • single-cylinder force after efficiency: 46,860 value
  • active cylinder count: 2 x
  • pressure-area product: 53,250 value

Run it with your numbers

  • Every input above is editable in the live Hydraulic Cylinder Sizing calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.