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Compressors come as piston ( reciprocating ) or screw ( rotary ) designs.
Reciprocating compressors are mostly used where the air pressure has to be high. Pressure ratings of 12 to 32 atm ( 200 to 500 psi ) are quite common, but have low aie capacity.
Screw type compressors, the pressure is limited to about 12 atm ( 200 psi )., but have high air volume capacity.
Low capacity compressors, both piston and screw type, are available with a storage tank
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