Vacuum feeder is a kind of fully enclosed conveyor produced by Xinxiang Dayong, which can be used as the conveyor of medicine vacuum conveying. There is no heat generation in the working process, and it is safe and explosion-proof. The conveying capacity mainly depends on the material characteristics, viscosity, density, fluidity, etc. the conveying distance is 80m horizontally and 30m vertically, and the conveying capacity is 10t / h