the pump type medium pressure fan has an aluminum alloy casing, aluminum alloy impeller, fan and material ADC12 aluminum alloy, pure copper core motor. the pump type medium pressure fan is a type of centrifugal fan with large flow rate, suitable for air blowing and feeding. the dual purpose blowing and suction model can be used for dust extraction, material extraction, gas extraction, and gas transportation by the vacuum cleaner fan. It can also be customized with a high-temperature resistant model, which is widely used in the industry and suitable for various working conditions.