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Pneumatic Cylinder - Excerted Force vs. Pressure

Force excerted by pneumatic air cylinders vs. air pressure cylinder size - online calculator.

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Single Acting Cylinder

Pneumatic air cylinder - force exerted

The force exerted by a single acting pneumatic cylinder can be expressed as

F = p A

= p π d2 / 4                                           (1)

where

F = force exerted (N)

p = gauge pressure (N/m2, Pa)

A = full bore area (m2)

d = full bore piston diameter (m)

Single Acting Cylinder Calculator  - Output Stroke

Calculate Force with known Pressure and Diameter

Calculate required Diameter with known Force and Pressure

Calculate required Pressure with known Force and Diameter

Example - Single Acting Piston

The force exerted by a single acting pneumatic cylinder with 1 bar (105 N/m2) and full bore diameter of 100 mm (0.1 m) can be calculated as

F = p π d2 / 4

    = (105 N/m2) π (0.1 m)2 / 4

    = 785 N

    = 0.785 kN

Air Cylinder - Pressure/Force Diagram

SI-units

Pneumatic air cylinder - acting force vs. pressure diagram - kPa

Imperial Units

Pneumatic air cylinder - acting force vs. pressure diagram - psi

Double Acting Cylinder

Pneumatic cylinder - double acting

The force exerted by double acting pneumatic cylinder on outstroke can be expressed as (1). The force exerted on instroke can be expressed as

F = p π (d12 - d22) / 4                                     (2)

where

d1 = full bore piston diameter (m)

d2 = piston rod diameter (m)

Double Acting Cylinder Calculator  - Input Stroke

Calculate Force with known Pressure and Diameter

Calculate required Diameter with known Force and Pressure

Calculate required Pressure with known Force and Diameter

Example - Double Acting Piston

The force exerted from a single acting pneumatic cylinder with 1 bar (105 N/m2), full bore diameter of 100 mm (0.1 m) and rod diameter 10 mm (0.01 m) can be calculated as

F = p π (d12 - d22) / 4

    = (105 N/m2) π [(0.1 m)2 - (0.01 m)2] / 4

    = 778 N

    = 0.78 kN

  • instroke capacity is reduced compared to outstroke capacity - due to the rod and reduced active pressurized areal
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