Donjoy lobe pump has a variety of configuration, TU-series is standard configuration, STU-series is all stainless steel. It is a positive displacement rotary lobe pump designed according to USA 3A-02-11 standard, very suitable for transportation of various highly viscous and low viscous material, such as food processing, beverages, juices, dairy products, cosmetics, pharmaceuticals, etc.. The pump also can be used for CIP & SIP system and transport material with solid particle. This pump also has performance not found in other volumetric pumps, such as low pulse which, high pressure, Bi-directional reversible inlet/outlet and flexible function combination.

The rotor pump is a positive displacement pump. The left cam is driven by the drive shaft and the right cam is mounted on the drive shaft and driven by the gear. The two cams rotate synchronously without interfering with each other. A certain volume of solution can be removed while the pump is operating. The figure below shows how the rotary pump works.