Hydraulic Intensifier Ratio Calculator

Inputs

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Large piston on the low-pressure (inlet) side.
mm
Small piston (or rod) on the high-pressure (outlet) side.
mm
Supply pressure on the drive side.
bar
Flow into the drive side; 0 if you only need the pressure ratio.
L/min

Results

Default result
Edit inputs
Intensification ratio(i)
16
Pass

16.00:1 — pressure multiplies, flow divides.

(D1/D2)² — pressure multiplies, flow divides.

Also computed

Outlet pressure(P2)Caution1,120bar

Above the common 700 bar component class — verify ratings.

Outlet flow(Q2)0.625L/min

Drive piston force(F)54,980N

P1 × A1 — what the common rod carries (= P2 × A2 ideally).

Method notes 3 notes
  • Outlet exceeds the common 700 bar high-pressure tool class — every downstream fitting, hose and gauge must carry a verified rating for it.
  • Ideal reciprocating-booster relations: i = (D1/D2)², P2 = P1·i, Q2 = Q1/i. Seal friction and compressibility take a few percent off the real outlet pressure — the maker's curve governs.
  • Output flow is the time-average over strokes; single-acting boosters deliver it in pulses and pause to reciprocate. Downstream volume and leakage set the duty cycle.

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