Specifications

1:High density and hardness
2:Grinding efficiency and saving electricity
3:Excellent wear resistance

High alumina grinding ceramic ball:

92%Al2O3 grinding ceramic ball, 95%Al2O3 grinding ceramic ball

Middle alumina grinding ceramic ball:

Micro-crystal middle alumina, carborundum middle alumina

 

High alumina grinding ceramic ball:

High alumina grinding ceramic balls are made from selected raw materials and fired in high temperature by advanced technique and automatic molding process using cool isostatic press. The ball serial includes various diameters ranging from 25mm to 75mm.

Advantages:

Compared with natural stone balls and normal ceramic balls, alumina grinding ball increases by 20-40 times in its performance of wear resistance.

Its grinding efficiency improves by 40%-60% and ball mill efficiency add by 30%-40%. Their total costs only take 40-60 percent of that of natural stone balls.

 

Main specification:

 

 

Item	High alumina grinding ceramic ball		Middle alumina grinding ceramic ball
			Micro-crystal middle-alumina	Carborundum middle alumina
	92%Al2O3	95%Al2O3	65-75%Al2O3	60-70%Al2O3
Al2O3(%)	>92	95	65-75	60-70
SiO2(%)	3.81	3	30-15 20-15	60-70
Fe2O3(%)	0.06	0.05	0.41	<0.5
TiO2(%)	0.02	0.04	1.7	1.8
Other(%)	2.53	1.9	5	10
Bulk density(g/cm3)	3.65	3.68	2.93-3.0	2.90-3.0
Water absorption	<0.01	<0.005	<0.01	<0.05
Moh’s hardness(grade)	9	9	>8	>8
Compression strength	>2000	2100	>1000	>1000
abrasion	0.01	0.0084	0.02	0.03
color	White	White	Yellow,white	Brown
Raw materials	Calcined alumina	Calcined alumina	Refined bauxite powder	Bauxite powder
Forming method	Isostatic pressing	Isostatic pressing	Impact briquetting	handmade