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Rotary Screw Air Compressors – M4 to M22

Many thousands of these units are in operation around the world. With our innovative automatic belt tensioning system, 8000 hour coolant, and leak-free design, the SSR M4-M22 are machines that you can count on for many years to come.

Check out the SSR if you are interested in the following:-

  • Reliability
  • Efficiency
  • Ease of installation
  • Quiet operation
  • Accurate information
  • Flexible options
  • Easy and low cost maintenance

There are a total of 28 base models, with capacities from 0.31 to 3.3 m3/min and pressure outputs up to 13 bar. Each of these can be supplied receiver-mounted and with other options. There is further flexibility as the pressure rating of the machines can be easily altered in the field.

SSR M4-M22

The Ingersoll-Rand family of SSR rotary screw compressors in the 4 to 22 kW power range incorporate proven technology in full-featured packages, providing optimum performance, high reliability and reduced maintenance requirements.

This is combined with a user friendly and totally flexible design covering every type of installation and application for this size of machine.

The SSR 4 to 22 kW models are electric motor driven, single stage, rotary screw compressors completely pre-piped and wired for direct connection to the electrical supply for simple low cost installation.

A flexible compressed air solution

The SSR M4 to M22 compressor range offers total flexibility – whatever the requirement, Ingersoll-Rand can offer a solution to your compressed air needs.

  • Floor-mounted M4 to M22 compressors
  • Receiver-mounted M4 to M22 compressors
  • Floor-mounted M4 to M11 with integrated dryer
  • Receiver-mounted M4 to M11 with integrated dryer


SSR M4 to M22 compressors are self-contained and totally integrated air compressor packages designed for applications in all types of industry.

  • Automotive workshops and bodyshops, tyre and exhaust businesses
  • Light industry and metal fabrication
  • Printing
  • Food processing
  • Hospitals and laboratories
  • Iron and steel
  • Mineral processing
  • Textiles and clothing

Other applications include plastics, packing and distribution, electronics, chemicals, transportation, forestry, pulp and paper, instrumentation and many more.