... powder feeding machine 2, 40-400 mesh 3, negative pressure 4, max 9000 kg/hour powder 5, GMP standards Vacuum Conveyor ... flexible, more clean.2. Working principle:First the vacuum is generated in the air injection pump, and ... the process is controlled by the controller.3. Features:Vacuum conveying in close pipeline, no leakage, no cross ... 6900043200.4-0.6Φ420*1350 Powder Vacuum Conveyor Feeding machine