Inputs
- Sizing input mode
- Required load or moving mass
- Travel orientation
- Guide friction
- Acceleration
- Stroke and travel time
- Working pressure
- Stroke direction
- Rod diameter
- Cylinder friction allowance
- Safety factor
Required bore
Pneumatic Cylinder Bore Size Calculator
Find the minimum pneumatic cylinder bore needed for a target force after pressure, rod diameter, friction allowance, and safety factor are considered.
Required bore
Run the calculation
Find the minimum pneumatic cylinder bore needed for a target force after pressure, rod diameter, friction allowance, and safety factor are considered.
Engineering visual
Cylinder Bore Size Calculator calculation map
Read the cylinder cross-section from left to right: supply pressure acts on the piston area, the rod removes return-side area, and the two arrows show the available extension and retraction force.
- 01Sizing input mode
- 02Calculate and compare
- 03Design force
Calculation reference
What this tool checks.
Enter a known force directly or derive it from moving mass, travel direction, guide friction, acceleration, stroke, and travel time. The calculator applies an automatic speed-based load factor before suggesting the next common metric bore.
Outputs
- Design force
- Average travel speed
- Automatic load factor
- Minimum bore
- Suggested standard bore
- Required area
- Estimated force at suggested bore
Engineering guide
Use the result with the right context.
Calculate cylinder bore size calculator from application data and interpret the result for preliminary pneumatic engineering review.
Enter the known application values, including Sizing input mode, Required load or moving mass, Travel orientation.
Run the calculation using one consistent set of units and reference conditions.
Review Design force, Average travel speed, Automatic load factor, then compare the result with the component datasheet and application margin.
Use gauge pressure at the actuator and account separately for downstream back pressure.
Confirm mounting, side load, cushioning, duty cycle, and catalog limits before final cylinder selection.
How the Cylinder Bore Size Calculator works
This calculator turns Sizing input mode, Required load or moving mass, Travel orientation into Design force, Average travel speed, Automatic load factor. The governing relationship remains visible in the dedicated formula area so the result can be checked against a worksheet, supplier data, or measured machine values.
How to interpret the result
Use the output as a transparent first-pass engineering estimate, not an automatic product approval. Compare the calculated value with available catalog ratings, transient conditions, installation losses, service environment, and a safety margin appropriate to the machine risk.
Limits and verification
Use gauge pressure at the actuator and account separately for downstream back pressure. Confirm mounting, side load, cushioning, duty cycle, and catalog limits before final cylinder selection. The final selection remains subject to the actual component datasheet, applicable standards, and validation on the installed system.
FAQ