PneumaForgeCompressed air & pneumatics calculators

PF-027 · Verified method

Air Motor Torque Calculator

Calculate torque from power and rpm.

Inputs

AFFILIATE LINKS

Useful equipment for this calculation

These optional products are directly related to the pneumatic task you are calculating.

AmazonPneumatic gripperView on Amazon →AliExpressPneumatic rotary actuatorView on AliExpress →

If you buy through these links, PneumaForge may receive a commission at no extra cost to you.As an Amazon Associate, PneumaForge earns from qualifying purchases.

ENGINEERING GUIDE

Use the Air Motor Torque Calculator to calculate torque from power and rpm. The calculator uses Mechanical power and Rotational speed and reports torque.

How to interpret the result

Read the result in the context of the selected units and pressure basis. For this tool, the primary outputs are torque. Change one input at a time when comparing scenarios so the effect of each variable remains clear.

Formula and methodology

PneumaForge applies this verified method: T=P/ω. The functional engine is shared with related tools in the rotational-power family, while this page solves the specific intent represented by pneumatic air motor torque calculator.

T=P/ω

Variables and inputs

Mechanical power
Rotational speed

Worked example

Reproducible example: start with the calculator's default values (Mechanical power = 1; Rotational speed = 600) and calculate the result. Then change the variable most relevant to your application and compare the new torque against the baseline.

Assumptions and limits

Mechanical output quantities; input pneumatic power is a different calculation.

Engineering tips

Use manufacturer displacement or mechanism-ratio data when the actuator geometry is not ideal.
Apply a safety factor to gripping calculations when acceleration, shock or uncertain friction is present.
Keep mechanical output power separate from compressed-air input power.
Keep the inputs used for air motor torque calculator on a consistent engineering basis before comparing alternatives.

Frequently asked questions

What does the Air Motor Torque Calculator calculate?

It is designed to calculate torque from power and rpm. The reported outputs are torque.

What inputs does the Air Motor Torque Calculator use?

The calculator uses Mechanical power and Rotational speed. Only use values that represent the same operating condition or design case.

What formula or method is used?

The calculation follows: T=P/ω. The page also states the assumptions that define where the method is valid.

Which assumptions can affect the result?