For many years today Roots vacuum pumps have been well established in the region of vacuum technology. In mixture with backing pumps, which compress against the atmosphere, these pumps offer lots of advantages.
Features:
The main benefit of roots vacuum pump is a high pumping speed at the low inlet 
pressure with high ultimate vacuum. Since the pump running parts haven’t any contact, such as rotors and the finish cover, so the pump overall performance is definitely 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 pharmaceutical, electric vacuum gadget manufacturing industries.
Because of the chemical substance, pharmaceutical and additional industries require huge vapor degassing capablity. the sealing structure of roots vacuum pump chamber and the bearing chamber offers improved, which significantly reducing the bearing cavity and equipment cavity oil emulsification. Therefore, roots vacuum pump is more suitable for pumping large quantities of water vapor and solvent with water ring vacuum pump.