Rotary screw compressors are ideal for applications requiring a continuous supply of compressed air, such as air sparging and oxygen injection. In rotary screw technology, there are two non-contact, oppositely-threaded, counter-rotating screws within a non-lubricated chamber. The tight tolerances of the screws and chamber provide the necessary seal. As the rotating screws pass the compressor inlet, the area between the screws expands, drawing air into the compressor. The air is transported along by the screws forcing the air against the chamber. When the air reaches the end of the chamber, the area between the screws and chamber is decreased and the air is compressed. This compressed air is forced through the compressor discharge. This process is continuous, as each rotation of the screws results in fresh air being drawn into the compressor, and compressed air being discharged. Due to internal compression, rotary screw compressors are capable of much higher discharge pressures than rotary lobe compressors.
Rotary screw compressors are capable of pressures up to 230 PSIG. These units require very little maintenance due to their non-contact, dry operation.
When selecting a rotary screw compressor, the required flow rate and pressure are the most important factors to be considered.
MLE Equipment uses rotary screw compressors manufactured by Kaeser Compressors. Please see the provided specification sheets and manuals for more detailed information on rotary screw compressors.
