Oil-injected Screw Vacuum Pump (also known as Oil-lubricated Screw Vacuum Pump) is a highly efficient and stable vacuum solution that combines the advantages of screw pump technology with an oil lubrication system. Its working principle involves injecting lubricating oil between the screw rotors, where the oil acts as a sealing medium, provides lubrication, and aids in cooling — significantly enhancing the pump’s efficiency and operational stability.