Rotary Screw Compressors

OZair consult with you to ensure a complete solution for your requirements. We carry a comprehensive range of equipment to suit any and all situations. Our Rotary Screw Air Compressors are utilised throughout the mining sector and heavy industry. They are highly economical, have a long service life and maintenance is cost effective.

Rotary Screw Variable Speed Compressors

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  • Motor: 4kw - 250kw
  • CFM: 6 - 1200
  • Bar: 7 - 15
  • Model: RSF4 - 160


  • No compression higher than necessary (1 bar higher compression = approx 8% higher energy costs)
  • No idle running phases, i.e. no unnecessary power consumption
  • Soft start eliminates peak start-up current
  • Adjusts automatically to air demand = no loss of energy
  • Minimized load on mechanical parts = lower maintenance costs and longer service life
  • Low maintenance costs and long service life


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  • Motor: 3kw - 55kw
  • CFM: 14 - 337
  • Bar: 7 - 15
  • Model: RS3-55


  • 1 year fully functional guarantee
  • Encapsulated air end:
    Compact design eliminates unwanted pipe work and potential oil leaks, as well as the need for pressure test certificates. Spin on & off separators save time and reduce maintenance costs
  • Easy to remove doors:
    Very good access to the individual components and ease of maintenance result in low costs for the user
  • Standard components:  
    Quality German made parts and use of standard mineral oils ensure long life and low running costs

Rotary Screw Compressors 75-250 kw

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  • Motor: 75kw - 250kw
  • CFM: 427 - 1250
  • Bar: 7 - 15
  • Model: RS75 - 250


  • 1 year fully functional guarantee
  • Compact and clear design
  • Low-noise and low vibration technology
  • Maintenance-friendly due to optimal accessibility of the key components
  • High quality standard components from German brand manufacturers guarantee quality and fast delivery of spare parts
  • Long lifespan due to intelligent construction details such as the automatic V-belt tensioning design or the cooling air system that guarantees optimal compressed air temperatures
  • High cooling air flow rate with excellent residual compression


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