(Dry screw pump)
However, compared with oil-free pumps and oil-type pumps, the price is higher and the performance is different, so the sales volume and application volume of oil-free vacuum pumps are still very large, and it is an insurmountable choice when selecting.
In practical applications, some industries (processes) are suitable for oil-free vacuum pumps, and some are more suitable for oil-based vacuum pumps. In order to help everyone further understand the oil-free pump and the oil-free pump, and to reasonably choose the vacuum pump for its own factory, Chinese Hokaido Vacuum Pump has sorted out the differences between the two, and their differences are mainly manifested in cleanliness and vacuum.
(Oil-lubricated rotary vane pump)
Oil vacuum pump refers to a vacuum pump that requires oil to lubricate and seal during the operation of the vacuum pump, or uses oil as the working medium. The main characteristics are good sealing, the ultimate vacuum is high, but the oil vacuum pump will cause certain pollution to the vacuum chamber. Commonly used oil pumps are rotary vane pumps and roots pumps.
Oil-free vacuum pump, that is, no oil as a medium and seal during the work, there is no oil pollution in the vacuum room, and a more ideal oil-free clean space can be obtained, but compared with the oil-type pump, the vacuum degree is low and the pumping volume is small, such as dry screw vacuum pump, scroll vacuum pump, piston pump, claw pump and so on.
When choosing a vacuum pump, whether to choose an oil-free vacuum pump or an oil-free vacuum pump needs to consider many factors. If you don't understand something, please feel free to consult Chinese Hokaido Vacuum Pump Factory.