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Compressor load

Compressor Duty Cycle Calculator

Estimate compressor duty cycle from average pneumatic demand, compressor free-air capacity, reserve allowance, and target duty limit.

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Compressor load

Run the calculation

Estimate compressor duty cycle from average pneumatic demand, compressor free-air capacity, reserve allowance, and target duty limit.

Engineering inputsCompressor Duty Cycle Calculator

Enter the known application values. Outputs update instantly as units or assumptions change.

Demand unit
Capacity unit
Use these values for preliminary sizing before final datasheet review.

Engineering visual

Compressor Duty Cycle Calculator calculation map

The compressor converts electrical input into compressed-air output and heat. Capacity, pressure, specific power, and recoverable heat are shown by energy path.

Compressor Duty Cycle Calculator calculation mapThe compressor converts electrical input into compressed-air output and heat. Capacity, pressure, specific power, and recoverable heat are shown by energy path.MOTORCOMPRESSORη / kWAIR Q @ pRECOVERABLE HEAT
  1. 01Average air demand
  2. 02Calculate and compare
  3. 03Base duty cycle
Base duty cycle
Duty with reserve
Capacity margin
Status

Calculation reference

What this tool checks.

Duty cycle is a capacity screen. Final compressor review should include receiver size, pressure band, leaks, dryer loss, simultaneity, and compressor control type.

Inputs

  • Average air demand
  • Compressor FAD capacity
  • Reserve allowance
  • Target duty limit

Outputs

  • Base duty cycle
  • Duty with reserve
  • Capacity margin
  • Status note

Engineering guide

Use the result with the right context.

Use your application data for a preliminary estimate, then check the result against the relevant technical or official guidance.

Calculation workflow

  1. Enter the known application values, including Average air demand, Compressor FAD capacity, Reserve allowance.

  2. Run the calculation using one consistent set of units and reference conditions.

  3. Review Base duty cycle, Duty with reserve, Capacity margin, then compare the result with the component datasheet and application margin.

Assumptions and limits

  • Keep standard, free-air, and actual compressed-volume reference states consistent throughout the calculation.

  • Confirm compressor, dryer, filter, receiver, pipework, ambient, and operating schedules with measured plant data.

FAQ

Common review questions.

01Tool noteWhat is a good compressor duty cycle?

It depends on compressor type and controls. Many preliminary reviews keep margin below the entered target rather than running continuously at full capacity.

02Tool noteShould leaks be included in average demand?

Yes. Include measured or estimated leakage, dryer purge, blow-off, vacuum generators, and simultaneous actuator demand for a realistic review.

03Tool noteWhat should I verify after using the Compressor Duty Cycle Calculator?

Check the entered units and reference conditions, then compare the calculated outputs with manufacturer ratings, application safety margins, transient loads, installation losses, and measured machine performance.