This machine is specifically designed for packaging fine powders and ultra-fine powders such as milk powder, coffee powder, traditional Chinese medicine powder, seasonings (sugar/salt), and agricultural/chemical powders. It is ideal for materials with poor flowability, and the replaceable screw specifications allow adaptation to different metering ranges. The machine can be configured for back-seal or three-side seal bags. Optional features include a nitrogen flushing device for fresh-keeping food packaging, an elevator, a finished product conveyor, a punching device, or a dual-coding system. It is widely used in the food, pharmaceutical, and chemical industries for small-scale powder packaging applications.