Stainless steel grain vacuum conveyor is a stainless steel vacuum conveyor for grain vacuum transportation produced by Xinxiang Dayong company.The compressed air blowback filter stored in the air bag is automatically cleaned; After a certain time (the discharging time is adjustable), the compressed air is restarted, the pneumatic vacuum pump generates vacuum, the discharging door is closed, the vacuum feeder feeds again, and the material is fed into the receiving equipment again and again.