A typical rotary screw air 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 into the space between your rotors. As the screws switch, they reduce the volume of the air, hence increasing the pressure.
The heart of an air compressor is the screw element which can be called air-end. The air-end is definitely the most important part of any screw-type compressor. It’s that portion of the machine where the Screw Air Compressor china actual compression occurs. It is the 
cardiovascular of the rotary screw atmosphere 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 use two inter-twined helical formed screws, referred to as rotors, to compress the air.