Automatic back-sealing machine, back-sealed serrated cutting bag. Combines advanced technology to achieve a variety of small powders, granules, liquids and other small independent packaging. The finished product packaging beautiful and generous. Independent packaging configuration, improve the appearance of beautiful products, so that customers feel hygienic and clean and have a grade! Packaging speed of 10-25 packets a minute or so, depending on the different items, weighing, cutting bag, sealing, cutting bags automatically, saving labor costs and increase productivity!