Alumina grinding balls refer to materials such as industrial alumina powder and high-temperature calcined Alpha alumina powder as raw materials, which are made by batching, grinding, pulverizing (pulping, mud making), molding, drying, and firing. It is a ball stone widely used mainly as a grinding medium.

According to different alumina content, it can be divided into medium aluminum balls, medium high aluminum balls and high aluminum balls.

Generally, we classify 60%-65% alumina content as medium aluminum balls, 75%-80% alumina content as medium-high aluminum balls, and over 90% alumina content as high-aluminum balls. Among them, the high-alumina balls are subdivided into 90 %, 92%, and 95%.

Medium aluminum balls and medium-high aluminum balls are accepted by most ceramic factories due to their lower prices, and are mainly used for grinding ceramic blanks. High aluminum balls are widely used in different types of ceramics, enamels, glass, and chemicals due to their high strength, high hardness, high wear resistance, high specificity, small size, high temperature resistance, corrosion resistance, and non-polluting. For the finishing and deep processing of thick and hard materials in factories, among them, high-aluminum balls with 92 content are the most commonly used.

Grinding ceramic balls are grinding bodies used in fine grinding equipment such as ball mills, pot mills, and vibration mills. Grinding ceramic balls have the advantages of high hardness, high bulk density, corrosion resistance, etc., and their crushing efficiency and wear resistance are much better than ordinary balls or natural pebbles. They are widely used in ceramics, glass, enamel, pigments, chemical industries and other industries.