Oil-free air compressors

Oil-free air and trouble-free performance

For industries with stringent air quality requirements like chemical, pharmaceutical, or food and beverage, Kaeser offers a complete line of two-stage oil-free rotary screw air compressors. 

These units are designed to deliver a reliable source of oil-free air and follow Kaeser's core design principles:

  • Energy-efficient operation – Components selected for quality and for performance
  • Service-friendly design – Maximum accessibility and smart features to cut down on maintenance time

Have special requirements? Thanks to their advanced communications, our compressors can easily integrate into existing compressed air and control systems. Contact us for a custom solution that is tailored to your needs.

Learn more about our CSG-2, DSG-2, and FSG-2 series of oil-free rotary screw compressors in this video.

Take a closer look at our oil-free rotary screw air compressors

with air-cooling

CSG-2 and DSG-2 air-cooled oil-free compression rotary screw compressors from Kaeser Kompressoren

Air-cooled – simply efficient

  • Reliable – even in ambient temperatures up to 115 °F
  • Service-friendly – convenient swing-out cooler
  • Efficient – thanks to intelligent system design
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with air-cooling

with water-cooling

CSG-2 and DSG-2 water-cooled oil-free compression rotary screw compressors

Water-cooled – compact and energy-efficient

  • Reliable – even at high water temperatures
  • Service-friendly – designed for maximum accessibility
  • Efficient – thanks to integrated heat recovery system
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with water-cooling

with integrated compressed air dryer

Oil-free compression CSG-2 and DSG-2 rotary screw compressors with integrated i.HOC rotary dryer

Integrated i.HOC® rotary drum dryer

  • Reliable drying – KAESER full-flow regeneration

  • Service-friendly – Easy access to all major components

  • Efficient in every way – i.HOC® efficiency control

Integrated refrigerated dryer

  • Reliable drying – Outstanding performance in ambient temperatures up to 115 °F

  • Service-friendly – Easy servicing from a single access point

  • Efficient – Pressure drop of only 1.5 psig

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with integrated compressed air dryer

Portable oil-free compressors up to 1600 cfm

The M500-2 compressed air giant for refineries and large industrial companies

The new compressed air giant: the M500-2 for refineries and large-scale industrial operations

  • With the innovative SIGMA CONTROL MOBIL controller
  • Highly effective deployed as a standalone unit or within an existing station
  • Maximum energy efficiency even after years of continuous use
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Portable oil-free compressors up to 1600 cfm