The whole machine adopts the advanced industrial computer bus design and PLC control system, through the color touch screen to finish all kinds of parameter setting and modification, characteristic of the photoelectric control system can make photoelectric automatic calibration in 2-3 bag cursor position. The seals adopt roller method, solid and reliable. Packing materials injected into packing bags by Hibar pump, high precision, the cut off ways can use each of flat knife, serrated knife, point marking knife.And equipped with with ease open bags cutting device.