Why should I choose a speed-controlled compressor?

Speed control of a compressor is regulated by variable speed drive, often known as VSD. This option uses the variable-speed drive technology to controls the speed of the compressor in a correspondent fashion, demanding from the compressor only what is needed.

One large benefit to a speed-controlled compressor is reducing power cost, minimizing power surges and delivering a more constant pressure needed for the job at hand. When there is minimal demand, the drive runs slower using less electricity. The higher the demand, the VSD runs wide open and can operate anywhere in between depending on the system demand for air.

A non-VSD compressor, known as a fixed speed air compressor, is either off or on. If it is on, it runs full demand regardless of the need. Typically, a fifth of a factory's electricity bill is credited to the production of compressed air. The VSD compressor may be a bit more expensive, but uses less energy. A fixed speed compressor is less expensive in comparison, but uses more electricity. A professional air audit is the best way to evaluate which compressor is right for you. 


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Who we are and how Ash Air can help your business!

Ash Air has been around in New Zealand since 1979, and we’ve grown into a nationwide company with international support and a reputation for quality and reliability.We look after all things compressed air for your business!

  • Reciprocating, Screw, air compressors
  • Vacuum pumps
  • Nitrogen
  • An extensive line of air treatment components

Ash Air's range of Chicago Pneumatic, Alup, Pneumatech, and Quincy compressors are used extensively around the world in industries ranging from oil and gas to food, automotive and farming, and we bring you these world class compressors here in the land of the long white cloud.Our technicians are compressed air equipment experts and are dedicated to addressing customer needs. Supported by a 13 locations nationwide, Ash Air offers one of the widest selections of compressed air equipment and parts available today in New Zealand.

Reliability and Efficiency

With Ash Air compressors, you can count on reliability and high performance for even the most demanding applications. We focus our efforts on the following:

  • Increasing uptime
  • Reducing unexpected repairs
  • Reducing energy consumption
  • Improving the cleanliness of compressed air


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