This machine is suitable for small-batch packaging of various granular and powder materials with good flowability, such as instant granules, MSG, oatmeal, desiccant, 3-in-1 coffee, sesame paste, and soy milk powder. The four-side seal bag format is ideal for single-serve sachets and sample packs. The built-in coding device eliminates the need for separate labeling or stamping, streamlining production. This machine is widely used in the food, pharmaceutical, and chemical industries for small-scale packaging applications where compact bag sizes and efficient coding are required. The optional gas-filling device makes it suitable for products that require freshness preservation or protection from moisture.