Pneumatic Cylinder Force & Air Consumption Calculator
COMPUTE PUSH/PULL FORCES (N / KGF) AND FREE AIR CONSUMPTION (L/MIN)Pneumatic Performance Results
Pneumatic Calculation Formulas
F_push = P × (π × D² / 4) | F_pull = P × (π × (D² - d²) / 4)
Pneumatic cylinders convert compressed air pressure into linear force. Extension force is higher than retraction force because the piston rod area reduces effective surface area during retraction.
Frequently Asked Questions
Why is pull force always lower than push force?
During retraction (pulling), the piston rod occupies space inside the cylinder chamber. The effective surface area exposed to air pressure is reduced by the rod area (A_retract = A_piston - A_rod).
What is friction loss factor in real cylinders?
Theoretical force calculations assume 100% efficiency. In real-world pneumatic systems, dynamic seal friction reduces actual output force by 5% to 15%. Select cylinder size with at least a 1.25 safety factor.
How does air consumption affect compressor sizing?
Air consumption (in free air Liters per Minute, Nl/min) dictates compressor delivery capacity. Heavy pneumatic duty cycles require adequate receiver tank volume to prevent pressure drops during peak demand.