Full automatic powder vacuum feeder / dry powder particle vacuum feeder / powder suction machine, is a dust-free closed pipeline conveying equipment for conveying particles and powder materials with the help of vacuum suction. It uses the air pressure difference between vacuum and ambient space to form gas flow in the pipeline and drive the movement of powder materials, so as to complete the conveying of powder. Now it is widely used in chemical, pharmaceutical, food, metallurgy, building materials, agricultural and sideline industries.