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Rotary Screw Compressors

Gardner Denver rotary screw air compressors are designed to meet the highest requirements of a modern work environment.  Easy to implement into any sized compressed air system, our rotary screw air compressors provide efficiency, low noise emissions, and robust performance.

Rotary screw air compressors, sometimes known as twin screw compressors, are the most universal compressors used today. Because of their wide range in size and power specifications, rotary screw air compressors are used in large mass production factories as well as small family business shops.


How Does a Rotary Screw Air Compressor Work?

Rotary compressors contain two rotors, categorized as male and female, with each rotor comprised of a set of helical lobes affixed to a shaft. The female rotor has typically more valleys (flutes) than the male rotor lobes. As air enters the compressor through the inlet valve, it becomes trapped between the two rotors. As they turn, the air pressure is increased by reducing its volume.


Why Oil Injected Rotary Screw Compressors?

Low maintenance – Oil coated parts have a much longer life expectancy. In fact, in most cases the rotors of rotary screw processor never have to be replaced.
Cooling - The compressor is cooled by the injected oil so water-cooling is not needed.
Sealing – The oil creates a seal in the compressor preventing the air from seeping out.
Noise Reduction – The oil lubricates moving parts so less friction is produced.

Cost-Effective and Efficient

Our new designs use Premium Efficiency Air Ends and Integrated Heat Recovery systems. When implemented into compressed air systems, these features make our rotary screw compressors flexible, powerful, yet efficient. 


Build to Last in Demanding Conditions

Our rotary screw air compressors have been designed to provide top efficiency and reliability. They can be used in low, high or variable air pressure systems, and in controlled as well as harsh conditions. 


Wide Selection of Rotary Screw Air Compressors

Gardner Denver rotary screw compressors come in all shapes and sizes so you can implement them in any compressed air system:

  • Power range from 2.2 – 500 kW
  • Oil free, oil less, or oil injected
  • Portable, or small footprint stationary
  • Fixed or variable speed
  • Integrated Air Aftercooler to cool discharged air and remove excess moisture
  • Air-cooled and water-cooled options
  • Available Advanced Control Systems

As Global manufacturers and suppliers of compressors, Gardner Denver has the rotary screw air compressor solution you need. Today, we remain at the forefront of rotary screw air compressor technology that uses state of the art parts and designs.

For more information on Rotary Screw Technology, go to Rotary Screw Compressors - Working Principle.