Hanbell Dry Vacuum Pump Service/rebuild

Hanbell PS series Dry Screw Vacuum Pump is using one pair of rotors which mutually engaging and with slight clearance between the rotors and inside casing. It makes no lubricating oil is required when it is running and no pollution from the leakage of oil and gas as well. Through patented rotor profiles with good sealing effects, the ultimate pressure can reach to 7.5 x 10-3 Torr (If combining with booster pump, it can reach 7.5 x 10-4 Torr). Dry screw vacuum pump has advantage on shorter gas path to reduce the contamination of process gas than other types of pumps. In addition, the rotors can be coated with suitable materials according to different applications, so it is able to operate in harsh process