... . Dosing Hopper Scale of the Power Packing Machine consists of Storage Hopper, Feeding System, Bag Clampping and Weighing, Control System ... control the feeding valve, bag clamping.h. Belt convey, stable an reliable.2. Main Featuresa. Semi-automatic filling machine, put the ... valve to stop feeding. Display final weight and release the bag automatically.b. Semi-automatic hemming machine, sealing speed ...