Grinding balls are also called wear-resistant media for grinders. They are consumables. Their main purpose is to grind materials to 

make them finer to meet the use standards. They are mainly used in mines, power plants, cement plants, steel plants, silica sand plants, 

coal chemical industries, etc.

Raw materials and processes of grinding balls

Grinding balls are mainly made of bauxite roller powder, industrial alumina powder, high-temperature calcined alpha alumina powder and 

other materials. They are made through batching, grinding, powder making (pulping, mud making), molding, drying, sintering and other 

processes. They are mainly used as grinding media and are widely used as ball stones. A lot of research has been done on using appropriate

additives to reduce sintering temperature and improve wear resistance.

Characteristics of grinding balls

Grinding balls have the characteristics of high hardness, high density, high toughness, high wear resistance, and corrosion resistance. 

The wear mechanism of alumina ceramics is divided into brittle fracture wear and plastic deformation wear. The wear characteristics

of the former are the shedding of grains along the crystal fracture, and the wear characteristics of the latter are microscopic cutting 

of transcrystalline fracture. The wear rate of the former is much greater than that of the latter, and people hope that the wear of 

ceramics is two types.

Uses of grinding balls

Alumina grinding balls are widely used in the grinding and processing of raw materials in industries such as white cement, minerals, ceramics, 

electronic materials, magnetic materials, and coatings and paints. They are high-quality grinding media. Zirconia grinding balls are mainly used 

as high-grade grinding media and fillers for fine powder processing equipment in industries such as ceramics, cement, chemical paints, coatings, 

igments, medical, and cosmetics.

Grinding balls are available in various sizes and materials, such as steel, ceramics, or high chromium grinding ball, depending on the specific

requirements of the milling process. The choice of grinding ball material and size directly affects the efficiency and cost-effectiveness of the

grinding process and the quality of the final product.