DXDL-40 Chain-driven packaging machine is our newly-developed pneumatic chain-driven packaging machine, and is characterized by the most advanced PLC control man-machine interface touch screen and imported pneumatic elements, stepless speed regulation, simple operation, small noise, and more stable performance. It is widely applied to the packaging of such industries as foods, pharmaceuticals, chemicals, seeds, etc., for example, various blocky, deformed, non-viscous, loose particle materials, including TCM decoction pieces, medlar, prawn slices, candy, tea, rice crust, etc. The materials are placed into the chain-driven hopper for the manual weighing. The machine can automatically complete bag-making, sealing, discharging, cutting, cursor tracking, counting, air inflating or air deflating, etc., and can display and monitor the touch screen on packaging speed, counting, etc. Moreover, it can be equipped with a coding equipment, such as ribbon coding machine, ink roll coding machine, heat transfer printing coding machine and ink-jet printer.