This machine adopts advanced PLC+elecphoto sensors,to ensure the numberin each bag is very precisely.This machine is a combined one,it concludes two components,one is the filling parts with 2--12 vibrative hoppers,and you can use one,two,three...separately;the other part is the making bags & packing part.This machine can be used to pack foods,electric parts and small hardware, such as:candy,peanuts,pills and irregular objects,such as:nails,bolts,nuts,and small hard waresetc.