... adopting double vibration feeder, 3.easy operate automatic washing powder packing machine:1.COMBINED PARTS:Vertical food packing ... control system, adopting double vibration feeder,east operation. The metering hopper discharge easily, fast, simple and low ... in packing small pellets and free flowing powder, such as: sugar, washing powder, monosodium glutamate, tea, powder, coffee, sesame, seeds, rice, ...