Automatic finish weight, bag-making, filling, sealing, cutting, counting, lot number and so on. Automatic optimization match with all the program, this system can alternate teh length of bag, thus it is easy and precise. The length of bag and bag packing speed can be alternated by chain-gear stepless speed varieties without change spare part. Unique in-laidembedded mouth sealing, enchanced hot sealing mechanism, intelligent temperature control by temperature controller, featuring fine heat balance, fine packing performance, low nooooooise, clear sealing texture and strong sealing performace. Bag length: 40-160mm Bag width: 40-100mm Capacity: 20-70 bags/min