Roots Vacuum Pumps

RTO and RTO/W series Roots vacuum pump are used widely in various areas of vacuum engineering. They extend the operating range of fore vacuum pumps, such as rotary vane pumps, rotary piston pumps and water-ring pumps, down to lower pressures. It is of large pumping speed in the range of 1~100 Pa's intake pressure and suitable for the vacuum systems that need to gain large pumping speed in the lower intake pressure, such as for vacuum drying and impregnation in electric transformer, electric capacitor and electric mutual inductance, for vacuum degassing in vacuum heat treatment and vacuum smelting, for vacuum predischarge in vacuum coating equipment, for gas exhausting in low pressure wind tunnel and the fluorescent lamp line. By suitable selection of the fore pumps, it is also suitable for the processes in vacuum distillation, vacuum concentration and vacuum drying in chemical industry, pharmacy, food and beverage, light industry and textile industry.