This machine adopts computer controlling system which is of industry level; All the parmeters adopt CRT real-time display. The bag-making speed, bag-making length, temperature, counting, punching and conveyor quantity of doubling finished products, etc. can be preset; Releasing tension can be controlled by full-automatic adjustable magnetic podaer constant tension control system; LPC automatic deviation-rectifying, double photoelectric tracking; New type pressure-lifting 6 times conveying function; Computer 16-route PID constant temperature control; Pneumatic multi-functional punching, automatic collecting of cut rim charge, electrostatic elimination; Technology of self supporting and self-sealing device is in the lead at home, which can truly make bag by one machine with multiple functions.