It is suitable for packaging powder and small granular materials, such as powder, small granular pharmaceuticals, veterinary drugs, glucose, seasonings, solid beverages, toner, talcum powder, pesticides, and more. A dust extraction device or anti-leakage device can be added according to different materials. Based on packaging speed requirements, dual-head, triple-head, or four-head configurations are available to achieve automatic bottle positioning, filling, and metering. The conveyor belt can be equipped with a vibration device to ensure uniform material filling. The hopper can be fully opened, making disassembly and cleaning very convenient. It adopts a servo motor-driven screw, which offers advantages such as wear resistance, precise positioning, adjustable speed, and stable performance.