1.used in ball grinding machines 2. Al2O3: 60-70%, 65-75%, 92%, 95% 3. iso 9001:2008

Alumina Grinding Balls are suitable for grinding medium used in ball grinding machines.

Introduction:Alumina Grinding Balls are suitable for grinding medium used in ball grinding machines.

Alumina grinding ball is one ideal ball mill grinding media,it can keep the purity and improve the stability of grinded materials especially the ceramic glaze.

The alumina balls ’ wear-resistance is higher than the common alumina balls’,it have many advantages ,such as :high density, corrosion-resistance, high mechanical strength and great wear-resistance. It is an economical, widely-used and non-metallic grinding media.

High-Alumina grinding ball	Unit
Al2O3	%	≥92	60-75
Fe2O3	%	≤0.05	≤0.08
Bulk Density	g/cm3	3.61	2.81-2.94
Water absorption	%	≤0.01	≤0.01
Moh’s hardness		9	≥8
Loss on ignition	%	≤0.011%	≤0.01%

Appearance Demand

	High Alumina Grinding Balls	Medium Alumina Grinding Balls	Carbonized Alumina Grinding Balls
Color	White	White	Ash-black
Crack	Not Permission	Not Permission	Not Permission
Impurity	Not Permission	Not Permission	Not Permission
Foam hole	Above dia 1mm not permission, size in dia 0.5mm permit 3 balls
Flaw	Max. size in dia0.3mm permit 3 balls

Advantage

High wear-resistance:The alumina balls’ wear-resistance is higher than the common alumina balls’. When it is working, the ball won’t pollute the grinding materials, so it can keep the purity and improve the stability of grinded materials especially the ceramic glaze. High densityThe high density, high hardness and the high grinding characters save the grinding time, enlarge the smashing room. So it can improve the grinding efficiency.

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92%95% High Purity Alumina Grinding Ceramic Ball For Support Media