Inputs
- Bore diameter
- Rod diameter
- Stroke length
- Target stroke time
- Working pressure
Required flow
Cylinder Flow Requirement Calculator
Calculate the free-air flow required to hit a target stroke time for pneumatic cylinder extension and retraction.
Required flow
Run the calculation
Calculate the free-air flow required to hit a target stroke time for pneumatic cylinder extension and retraction.
Engineering visual
Cylinder Flow Requirement Calculator calculation map
The sketch links airflow into the cap and rod chambers with piston travel, stroke distance, velocity, and elapsed cycle time.
- 01Bore diameter
- 02Calculate and compare
- 03Extend flow
Calculation reference
What this tool checks.
The required flow is expressed as free-air demand so it can be compared with valve and compressor references.
Outputs
- Extend flow
- Retract flow
- Controlling flow
- Air per full cycle
Engineering guide
Use the result with the right context.
Calculate cylinder flow requirement calculator from application data and interpret the result for preliminary pneumatic engineering review.
Enter the known application values, including Bore diameter, Rod diameter, Stroke length.
Run the calculation using one consistent set of units and reference conditions.
Review Extend flow, Retract flow, Controlling flow, 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 Flow Requirement Calculator works
This calculator turns Bore diameter, Rod diameter, Stroke length into Extend flow, Retract flow, Controlling flow. 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