An average rotary screw atmosphere Screw Air Compressor china compressor has two interlocking helical rotors contained in a housing. Air comes in through a valve, typically called the inlet valve and is taken in to the 
space between your rotors. As the screws change, they reduce the volume of the air, thus increasing the pressure.
The heart of an air compressor may be the screw element which is also called air-end. The air-end can be the most important component of any screw-type compressor. It’s that portion of the machine where the actual compression occurs. It is the center of the rotary screw surroundings compressor.
A Rotary Screw Surroundings Compressor is a compressor that uses a rotary-type positive displacement system, called a rotary screw, air-end. … Rotary Screw Compressors also use two inter-twined helical designed screws, referred to as rotors, to compress the air.