1. Controlled by dual frequency converter, the bag length is set and cut immediately, and the bag length is not set to track and cut immediately. There is no need to adjust the empty walk. It is in place in one step, saving time and film. 2. Human machine interface, convenient and fast parameter setting. 3. Fault self diagnosis function, and the fault display is clear at a glance. 4. High sensitivity photoelectric eye color mark tracking and digital input of sealing and cutting position to make the sealing and cutting position more accurate. 5. Independent PID control of temperature, better suitable for various packaging materials. 6. Positioning shutdown function, no knife sticking and no waste of coating. 7. The transmission system is simple , the work is more reliable and the maintenance is more convenient. 8. All controls are realized by software to facilitate function adjustment and technical upgrading. Optional devices for intelligent packaging machines: