Widely used in small bag packaging for pharmaceuticals, food, chemicals, pesticides, and other fields, such as automatic packaging of flour, medicinal powder, milk powder, nutritional foods, seasonings, wettable pesticide powders, and other materials. By using a stepper motor to control the screw, intermittent extrusion feeding can be achieved, which can accurately package dry and powdery materials. If all the functions of this machine are fully equipped, it can automatically complete quantitative, bag making, filling, (inflation), sealing (optional sealing effects such as mesh, straight line, smooth, etc.), (coding), ("-", "V" - shaped easy to tear mouth), cutting (cutting methods: serrated cutting, easy to tear bag connection, flat cutting, etc.), counting until the product output is completed in one go. This machine can also be optionally equipped with punching machines, automatic lifting machines, belt output machines, etc., to maximize the performance of the machine and achieve an automatic production process of automatic feeding, automatic packaging, and automatic delivery of finished products.