... air cylinder control, chain feeding system to feed the bags to punching area.8. Punching unit adopts ... . Sealing and cutting unit adopts microcomputer control, to set and show the speed, length, batch ... , etc; punching unit adopts PLC control system, to set the catching and punching time, etc.10 ... high quality bearing to connect, long working life and stable.With “Point-to-cut” buttons, for easy machine ...