The self-suction grain crusher and flour mill is a practical solution for processing wheat, corn, rice, sorghum, beans, and other grains. With a self-suction feeding system, the machine can automatically draw raw materials into the crushing and milling chamber, making the operation more convenient and reducing manual feeding. This grain milling machine combines crushing and flour milling functions in one unit. It is suitable for producing grain flour and feed materials with efficient and stable performance. The finished product size can be adjusted according to different processing requirements. With a compact design, easy operation, and reliable working performance, the self-suction grain crusher and flour mill is widely used on farms, in small grain processing workshops, feed processing businesses, and rural food production.