Screw compressors from 3 to 700 hp

A rotary screw compressor with quality you can count on

Rotary screw air compressors power production processes with a reliable supply of quality compressed air in countless industrial, trade, and workshop applications. They are the preferred choice for users requiring constant pressure for extended periods of time.

To ensure that our screw compressors operate as efficiently as possible, we developed our own special rotor profile. Our SIGMA profile rotors provide energy savings of up to 15% compared to other conventional rotor profile designs. 

Our precision-machined and generously sized roller bearings help give our SIGMA profile airends an exceptionally long service life. All of this, combined with our state-of-the art in-house manufacturing processes and strict manufacturing tolerances deliver the exceptional level of quality synonymous with the KAESER name.

Low life cycle costs

Life-cycle costs

Our comprehensive approach to life cycle cost management: Superior efficiency, easy operation, service-friendliness, and a global service and consulting network with fast response times.


An overview of our rotary screw compressors



Compressed air packages

Compressed air stations

Ready to run: Kaeser's all-in-one screw compressor packages

  • Single 5 hp units to twin 20 hp units
  • Space-saving combinations that include a rotary screw compressor, air receiver, and refrigerated dryer
  • Convenient control with SIGMA CONTROL
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Compact rotary screw compressors up to 30 hp

AS 20 rotary screw compressor

KAESER rotary screw compressors with belt drive provide outstanding efficiency and reliability.

  • Series: SX, SM, SK, AS
  • Available with optional refrigerated dryer, variable-speed control and/or air receiver
  • Intuitive control with SIGMA CONTROL
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Compact rotary screw compressors up to 30 hp

Mid-sized rotary screw compressors from 25 to 125 hp

Fluid-injected rotary screw compressors with 1:1 direct drive

Powerful and energy-efficient: Mid-sized rotary screw compressors ensure a dependable supply of compressed air for workshops and industrial operations.

  • Series: ASD, BSD, and CSD
  • Available with refrigerated dryer and/or variable-speed control
  • Large, low-speed airends save additional energy.
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Mid-sized rotary screw compressors from 25 to 125 hp

Large rotary screw compressors from 100 to 700 hp

HSD 782 series rotary screw compressor

Rotary screw compressors up to 3143 cfm for large-scale industrial operations.

  • Series: DSD, ESD, FSD and HSD
  • HSD: Two independent compressor units within a single compact housing 
  • SIGMA CONTROL controllers precisely match operation to actual compressed air demand.
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Large rotary screw compressors from 100 to 700 hp