Centrifugal compressors are used in many applications, including vapor compression refrigeration, water cooled chillers in the commercial air conditioning industry and pipeline transport of natural gas. The centrifugal compressor is a non-positive displacement type. It increases the pressure and temperature of the refrigerant by converting kinetic energy into pressure. They are usually the most economical means to cool large buildings. In modern configurations of centrifugal compressors, ultra-high-speed electric motors are used to drive the impellers.

Calnetix Technologies’ Magnaforce™ permanent magnet motor generators on Powerflux™ magnetic bearings are a great match for driving these compressors, reducing downtime and operating costs for the end user. Variable speed centrifugal chiller compressors with active magnetic bearings save energy as compared to the conventional chillers by eliminating losses due to bearing friction and reducing maintenance costs. There is increasing market demand for low maintenance, oil-free compressors with variable speed for capacity control.

Calnetix Technologies is a preferred source and trusted partner of many industry-leading original equipment manufacturers (OEMs) in this market segment.