By . Air Compressor. At Sunday, September 09th 2018, 07:31:03 AM.
Screw compressors consists of two helical rotors which are used in compressing external air to a set pressure, ensuring dry, clean, and compressed air. The find increasing application in segments such as chemicals and petrochemicals processing, food & beverages, metals & mining, automotive, power plants, and oil & gas where large volume of high pressure air is needed especially to drive machine tools.
The most common is the piston compressor. This falls under the positive displacement compressors, which you can find in fractional to very high horsepower ranges. The positive displacement air compressor works by filling an air chamber with air and reducing the chamber volume.
For tools that require greater pressure, or if you use multiple tools back to back, then you need a two stage compressor.