Air Compressors

Overview of manufacturers of air compressors.

air compressors

tools & accessories

How it works

Screw air compressor

Rotary screw element

Inside the compressor element are two screws (called rotors) that turn in opposite direction. The rotary screw compressor is a positive displacement compressor. Which simply means that the air is physically squeezed together by an external force (like piston- and scroll-compressors, which are also positive displacement compressors).
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Most air compressors either are reciprocating piston type, rotary vane or rotary screw. Centrifugal compressors are common in very large applications. There are two main types of air compressor's pumps: oil-lubed and oil-less. The oil-less system has more technical development, but is more expensive, louder and lasts for less time than oil-lubed pumps. The oil-less system also delivers air of better quality.

Air compressors can be classified according to the design and principle of operation; piston compressors and rotary-screw compressors.

A rotary-screw compressor is a type of gas compressor that uses a rotary-type positive-displacement mechanism. They are commonly used to replace piston compressors where large volumes of high-pressure air are needed, either for large industrial applications or to operate high-power air tools such as jackhammers.

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