Alumina grinding ball

Alumina grinding ball: Size:30mm,40mm,50mm,60mm Alumina Content:73~75% Hardness: 8 Bulk density: 3.25g/cm3  Alumina grinding ball:The products are featured by high hardness, big density, low wear lost, good normalizations, good corrosion-resistance etc. They are the most ideal high-efficient grinding media for milling glaze materials, and various powdered ore. They are using ceramics, cements, paints, refractory, inorganic mineral powders and other materials to form. And the detailed information please refer to following: Features: 1. High wear-resisting: The alumina balls’ wear resisting is higher than the common ceramic balls’. When it is working, the ball will not pollute the grinded materials, so it can keep the purity and improve the stability of grinded materials especially the ceramic glaze.  2. High density: the high density, high hardness and the high grindingCharacters save the grinding time, enlarge the smashing room. SoIt can improve the grinding efficiency.  Index for alumina grinding balls: 

Product	Al2O3(%)	Density(g/cm3)	Water absorption(%)	Moh’s hardness(scale)	Abrasion loss(%)
75series	73-76	≥3.25	≤0.02	8.5	≤0.0025

The standard specification of alumina grinding balls 

Diameter(mm)

φ30

φ40

φ50

φ60

Alumina grinding ball