GOORUI Side Channel Blowers are very similar SIEMENS. They were mainly for their safety, performance, convenience, durability and environmental impact. This Side Channel Blowers are suitable for all those applications requiring considerably higher pressures than those can be achieved using centrifugal fans. Side channel exhausters are used in all those applications requiring an operating vacuum higher than the one achievable by a fan, but not as high as to require the use of a vacuum pump. The rotating parts are not in contact with the casing. There is, therefore, no friction during operation, and thus no internal lubrication is necessary. Gas moving through the machine, therefore remains uncontaminated and completely oil-free. The other main features are: 1) Beautiful surface 2) Easy installation 3) Low noise level 4) No vibration, and therefore complete dynamic stability 5) Pulsation-free discharge 6) Minimal maintenance 7) Higher pressure ratio 8) Cooler running bearings 9) Longer grease life 10) Simple maintenance 11) 100% oil-free air 12) Suitable for environmental protection 13) Small dimensions