... stepping motor(servo)feeding, photoelectric tracking, automatically punching, rush corner,zip, article welding, correction, anticipate alarm, stop, main-motor transducer, ... ultrasonic welding etc.2. Bag making speed: flat bag30-100pcs/m, 3 side box bag30 ... -60pcs/m, zipper bag 30-70 pcs/m, hand bag (with hand laptop)30-40pcs/m, vest ...