For many years right now Roots vacuum pumps have already been well established in the area of vacuum technology. In combination with backing pumps, which compress against the atmosphere, these pumps offer plenty of advantages.
Features:
The main benefit of roots vacuum pump is a high pumping speed at the lower inlet pressure with high ultimate vacuum. Because the pump operating parts haven’t any contact, such as rotors and the finish cover, so the pump functionality is certainly stable and lengthy service time. low 
maintenance cost
Applications:
They’re trusted in vacuum smelting, vacuum welding, vacuum casting, vacuum coating, vacuum drying, vacuum dynamic experiment and chemical substance pharmaceutical, electric vacuum device manufacturing industries.
Because of the chemical substance, pharmaceutical and additional industries require large vapor degassing capablity. the sealing structure of roots vacuum pump chamber and the bearing chamber has improved, which significantly reducing the bearing cavity and equipment cavity oil emulsification. Thus, roots vacuum pump can be more suitable for pumping large levels of water vapor and solvent with drinking water ring vacuum pump.
