Many conveying jobs in the plastic processing industry can be solved efficiently by using pneumatic conveying systems. By combining the Polyvac vacuum unit with Kongkilde’s OK pipe system, efficient conveying systems can be tailor-made to meet most conveying demands from process to process or, to and from a storage facility. The Polyvac unit is an integrated solution based on a high-pressure centrifugal blower with a cyclone-like separation unit, in such a way that the conveyed material does not pass through the fast-rotating blower rotor. The Polyvac unit is only available in 60 Hz versions.