1.Three servo controls, the bag length can be set and cut immediately, no need to adjust the idling, one step, saving time and film; 2.Human-machine interface, convenient and quick parameter setting 3.Fault self-diagnosis function, the fault is clear at a glance, 4.High-sensitivity photoelectric eye color tracking, digital input of sealing and cutting position, making sealing and cutting more accurate, 5.Temperature independent PID control, better suitable for various packaging materials, 6.Positioning stop function, no sticking to the knife, no waste of film, 7.The transmission system is simple, the work is more reliable, and the maintenance is more convenient. 8.Therefore, the control is realized by software, which is convenient for function adjustment and technology upgrade, and never falls behind