Rotary Screw Compressor

When it comes to modern industrial machinery, the screw compressor is one of the most widely used technologies. Known for their reliability and versatility, screw compressors are the powerhouse behind many industrial processes and applications. This durable technology is suitable for a range of demanding industry tasks; without them, businesses around the world will face operational challenges and productivity problems.
There are two basic principles of compression in air compressors. One of them is the principle of positive displacement. There are many types of compressors that use this method, the most popular being screw compressors.

Working Principles
As the name suggests, screw compressors use rotary motions to compress the air. There are a number of male and female rotors inside the compressor. They will be designed differently so that air will be trapped between them when rotated together. The male rotor has convex lobes and the female rotor has concave cavities; in this way, they can interlock without touching to achieve compression. Additionally, the male rotor will have slightly fewer lobes than the female rotor, meaning it will spin faster and drive the female rotor effectively.

Unlike reciprocating compressors, which use the same compression principle, the screw element is not equipped with valves. In this way, it can operate at high shaft speed and there are no mechanical or volumetric losses to create imbalance. This means that screw technology can combine a large flow rate with a compact, space-saving design.