Variable-Speed Rotary Screw Compressors

Variable-speed rotary screw compressors for maximum energy efficiency

Variable-speed rotary screw compressors automatically adjust their output to match the actual compressed air demand. By continuously adjusting the motor speed, only the amount of compressed air that is currently needed is generated. This reduces energy costs while maintaining a constant operating pressure in the compressed air network.

In this category, you’ll find high-quality variable-speed rotary screw compressors from well-known manufacturers for professional applications in industry, trade, and manufacturing:

✅ Belt-driven, variable-speed rotary screw compressors
✅ Variable-speed rotary screw compressors with 1:1 direct drive
✅ Drive power ranging from 11 kW to 90 kW
✅ Flow rates from 1.30 m³/min to 15.40 m³/min
✅ Operating pressures of 5–8 bar, 5–10 bar, 8 bar, and 10 bar
✅ Models with integrated refrigerated air dryer and air receiver available
✅ Ideal for fluctuating compressed air demand

Unlike unregulated rotary screw compressors, a variable-speed compressor does not operate at full power all the time. The integrated frequency control continuously adjusts the speed of the drive motor to match the actual compressed air consumption. This reduces idle times, minimizes pressure fluctuations, and improves the energy efficiency of the entire compressed air system.

Variable-speed rotary screw compressors are particularly cost-effective in facilities with fluctuating compressed air demand. Precise pressure control ensures a constant system pressure and optimal utilization of the compressed air system.

Whether you need a belt drive for maximum flexibility or a 1:1 direct drive for maximum efficiency—we have the right variable-speed rotary screw compressor for virtually any application and facility size.

Your advantage with Strahltechnik-Express: Benefit from a wide selection of professional variable-speed rotary screw compressors, expert advice, and customized compressed air solutions for your business.