By . Air Compressor. At Friday, August 10th 2018, 01:54:03 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.
Now, most of these you do not have to know anything about, but if you are a layman, you can clearly see that there is a lot more to compressors than first meets the eye. For general use with tools, an air compressor is most likely to be a reciprocating piston, a rotary vane or rotary screw compressor.
I recommend that you buy a compressor with an air tank. It produces constant air flow, unlike the diaphragm model, which creates pulsation. You have to choose as large as possible reservoir tank. It provides constant, smooth air flow.