The JOYAL Ф2700×3600 Ball mills are commonly used as secondary grinding equipment after crushing, and are used for various types of ore and similar materials, for either wet or dry grinding. They are mostly used in ferrous/non-ferrous metal mines, for building materials, chemical applications, electrical power, coal, traffic, light industry and similar applications and areas. They feature a rolling bearing support that saves up to 20% of energy. They can be grate type or overflow type. They are highly durable, robust, reliable, and are easy to handle, due to simple design. They are very easy to maintain. The materials from the feeding fittings enter the bin via feeding hollow axis evenly. A scaleboard is present in the first bin, with different steel ball installments. After cylinder rotation, steel balls are carried to a height, and left to fall and strike materials. Afterwards, material enters the second bin via partition board.