Screw compressors, usually placed in the quiet air compressor category, or known as rotary screw air compressors, are designed to handle a wide range of dry material transferring applications, from sand granulates, to cement and plastic, lime and silicate. The basic operation of a screw compressor consists of two screw rotors, placed into action by gas compression.

The rotary screw air compressor is one of two main categories in the air compressor industry, with the other being reciprocating piston compressors. The rotary screw, also known as helical rotary compressor, does not use values, instead it using positive displacement pumps to generate flow by applying an expanding cavity on the suction side of the compressor and a decreasing cavity on the discharge side.

Silentaire Technology manufactures the leading low-noise compressors in the industry. You can choose from oil lubricated to oil-free models.

This is our review of the Craftsman Professional 25 Gallon Air Compressor.

This is a review of the All-Power QuietZone APC4406 Air compressor.