Packing Machine Overview During the packaging process, the material tensile feeding device is used for feeding. The plastic film. This production line is suitable for the automatic production of liquid, particle and powder products. It is composed of bottle/can feeder, auto weighing machine, auto filling machine, metal detection, seamer, capping machine, labeling machine and other machines. According to different materials and requirements, different equipment can be selected to form a complete set of production line or single use.