How to Size a Rotary Screw Air Compressor

Sizing a rotary screw air compressor correctly prevents energy waste and unstable pressure. Follow these steps to estimate the right machine.

1. Total Your Air Demand

Add the air consumption of all tools and equipment that run at the same time. Include a margin for leaks and future expansion, commonly 10 to 20 percent.

2. Confirm Working Pressure

Check the required pressure of each application. Operating above the needed pressure wastes energy, while under-sizing causes production problems.

3. Match Flow, Pressure and Duty Cycle

Select a compressor whose output covers peak demand at the required pressure. A variable-speed model often saves energy when demand fluctuates.

4. Plan the Full System

Include the receiver tank, dryer and filters so the complete system meets both air quantity and air quality requirements.

Send us your flow, pressure, voltage and application, and our engineers will recommend a suitable model.