![]() As each of the two screws rotates, the air pressure inside the chamber is increased which effectively reduces the volume of air. ![]() Rotary Screw Air Compressors This type of compressor has two mated helical screws located inside a chamber. After that the majority of heat is removed, and the air is passed on to another cylinder where it is compressed to a specified value. During the first stage, the air is compressed to an intermediate pressure. Two-stage compressors take the air in from the atmosphere just like single-stage units, but they have two cylinders instead of one. These are known as single-stage compressors. The air is then compressed as the piston moves upwards. When the piston moves down inside the cylinder, the air enters the space above thanks to the difference between the atmospheric pressure and the pressure inside the cylinder. They take advantage of the principle of positive displacement. more Reciprocating and piston air compressors are interchangeable terms, and this type of air compressor is the most common on the market today. ![]() Reciprocating and piston air compressors are interchangeable terms, and this type of air compress.
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