An average Screw Air Compressor china Rotary screw atmosphere compressor has two interlocking helical rotors contained in a housing. Air will come in through a valve, typically called the inlet valve and is taken in to the space between your rotors. As the screws turn, they reduce the level of the air, therefore increasing the 
pressure.
The cardiovascular of an air compressor is the screw element which can be called air-end. The air-end can be the most important component of any screw-type compressor. It’s that area of the machine where the actual compression takes place. It is the center of the rotary screw air compressor.
A Rotary Screw Air flow Compressor is a compressor that runs on the rotary-type positive displacement mechanism, called a rotary screw, air-end. … Rotary Screw Compressors also make use of two inter-twined helical shaped screws, referred to as rotors, to compress the atmosphere.