Ball pressing machine is also called: powerful ball pressing machine, mineral powder ball pressing machine, roller ball pressing machine, goose egg forming machine and so on. The pelletizing machine is mainly used for pelletizing and briquetting nonferrous and ferrous metal ore powder, which is directly smelted in the furnace to improve the added value. All metallurgical wastes and auxiliary materials need to be put into the furnace, which needs to be completed by a ball press. For example: dust, pond mud, scale, steel slag, iron concentrate powder, aluminum ash powder, silicon manganese powder, etc. Ball press is a kind of equipment that presses powdery materials into balls. The ball press is widely used to press the following materials, such as waste aluminum, activated carbon, alumina, bauxite, caustic soda, charcoal, clay, coke chips, coal, cryolite, fertilizer, plastic, limestone, pigment, urea, potassium salt and so on. Its purpose is to reduce dust, control bulk density, recycle and improve transportation characteristics. The design of production capacity is mainly used to press dry powder into pellets in Pijiang magnesium smelting process.