The machine is specially designed and developed for OPP PE express bags. Single layer or double layer sheet material is loaded on the machine, and the welding surface is (single - folded) - hot melt adhesive is loaded - side welding surface single bag - electric eye tracking - bag making - automatic bag management. All processes are completed at one time. At the same time, it can also produce clothing bags, towel bags, bread bags, jewelry bags, etc.