Factory briquette machine are rollers pressing type. This type of briquette presses can apply higher pressures and thus producehigher density briquettes . These briquettes can be designed of oval shape, egg shape, pillow shape, square shape etc. Thismachine is widely used in coal industry and metallurgy industry. ---Briquetting is the transformation of powdery or granular raw materia ls into a larger more convenient size with different shapes. ---This is accomplished by compacting the raw materials with the rollers pressing. ---During briquetting, the raw materials such as coal fines, anthracite coal, bituminous coal, subbituminouscoal, coke fines, carbon powder, charcoal powder, carbon black, iron ore fines, mineral powder, metal dust, iron dust, mill scale,manganese ore fines, fluorite powder, gypsum powder, chemical salt, ferrosilicon powder, nickel alloy, blast furnace ash,converter dust, MgO, graphite, oil shale, potash fertilizer, urea fertilizer, sea sand powder etc Should be added the binder for good forming effect. Anthracite coal briquette ball making machine is widely used for recycling these materials with high economic profits. ---The briquettes can be produced with high or low pressure and can undergo mechanical or thermal treatment according to the characteristics of the processed material, the binder used and the desired end product.