... 5.Precise positioning Servo control tension of film, tensions film for accurate positioning, Electric automatic tracking ... Combination Weigher with Packing Machine )Completely automatic weighing, filling, film-pulling, bag-making, bag-punching (holing), printing ... of roll film400mmBag width60~190mmBag length50~230mmPackaging film materialsComplex filmFilm Drive PowerServo MotorEnd Seal PowerCylinderAir ...