Alumina grinding ball has been widely used in ball mills as abrasive media for ceramic raw materails and glaze materials in ceramic factories,cement factories,enamel factories glass work owing to the excellence of hgh density,hardness and wear resistance.it is requested to have no broken during the grinding process,it will not pollute the material being grinded too.

Typical Characteristic Parameters

Item	92%  Al2o3	95% Al2o3
Al2o3 %	>92%	>95%
Sio2 %	3.81	3
Fe2o3 %	0.06	0.05
Tio2 %	0.02	0.04
other %	2.53	1.9
Bulk density (g/cm3)	3.65	3.68
Water absorption	<0.01	<0.005
Mohs hardness (Grade)	9	9
Compression strength (MPA)	>2000	2100
Abrasion %	0.01	0.0084
Colour	White	White
Raw materials	Calcined Alumina	Calcined Alumina
Forming Method	Isostatic pressing	Isostatic pressing

Please visit our youtube to see the relevant vedeos:
The pressing process:  https://youtu.be/aLOJwG7YvcE  
Alumina ball to roller kiln:  https://youtu.be/GDPJZosWMMo