Inputs
- Load mass
- Radius from shaft
- Entered inertia
- Motion input mode
- Rotation angle
- Rotation time
- Angular acceleration
- Orientation
- Friction torque
- Efficiency
- Safety factor
- Catalog torque
- Catalog allowable kinetic energy
Rotary torque
Pneumatic Rotary Actuator Torque Calculator
Estimate required pneumatic rotary actuator torque from load mass, lever radius, angular acceleration, gravity orientation, friction, safety, and efficiency.
Rotary torque
Run the calculation
Estimate required pneumatic rotary actuator torque from load mass, lever radius, angular acceleration, gravity orientation, friction, safety, and efficiency.
Engineering visual
Rotary Actuator Torque Calculator calculation map
The load rotates about the shaft; radius, mass, angular acceleration, inertia, and required torque are located where they act.
- 01Load mass
- 02Calculate and compare
- 03Required torque
Calculation reference
What this tool checks.
The estimate treats the load as a point mass at the entered radius. Off-center tooling, stops, bearing loads, and actuator torque curves need datasheet review.
Outputs
- Required torque
- Acceleration torque
- Gravity load torque
- Used inertia
- Maximum angular speed
- Rotational kinetic energy
- Catalog torque margin
- Catalog energy utilization
Engineering guide
Use the result with the right context.
Calculate rotary actuator torque calculator from application data and interpret the result for preliminary pneumatic engineering review.
Enter the known application values, including Load mass, Radius from shaft, Entered inertia.
Run the calculation using one consistent set of units and reference conditions.
Review Required torque, Acceleration torque, Gravity load torque, 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 Rotary Actuator Torque Calculator works
This calculator turns Load mass, Radius from shaft, Entered inertia into Required torque, Acceleration torque, Gravity load torque. 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