Variable-speed screw compressors

Variable-speed rotary screw compressors for maximum energy efficiency

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

In this category, you will find high-quality variable-speed rotary screw compressors from renowned manufacturers for professional applications in industry, skilled trades and production:

✅ Variable-speed rotary screw compressors with belt drive
✅ Variable-speed rotary screw compressors with 1:1 direct drive
✅ Motor power ratings 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 dryer and compressed air receiver available
✅ Ideal for fluctuating compressed air demand

Unlike fixed-speed rotary screw compressors, a variable-speed compressor does not operate continuously at full capacity. The integrated frequency control continuously adjusts the drive motor speed to 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 economical for businesses with fluctuating compressed air demand. Precise pressure control ensures a constant system pressure and optimum utilization of the compressed air system.

Whether you need a belt drive for maximum flexibility or a 1:1 direct drive for the highest efficiency – we offer the right variable-speed rotary screw compressor for almost any application and operating scale.

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