Alumina Grinding Ball High Density High Hardness

Alumina Grinding Ball
1.20 years professional manufacture
2.ISO9001:2008
3.size:3mm-60mm
Alumina Grinding Ball Density High Hardness
XINGFENG Grinding Balls are suitable for grinding medium used in ball grinding machines.

Typical Characteristics
Product
Al
2
O
3
(
%
)

Bulk density
(
g/cm
3
)

Water absorption
(
%
)

Moh’s
Hardness
(
scale
)

Abrasion loss
(
%
)

High Alumina Grinding Balls
92
3.65
<0.01
9
0.011
95
3.68
<0.005
9
0.0084
Medium Alumina Grinding Balls
65-75
2.93
<0.01
8
<0.01
Carbonized Alumina Grinding Balls
60-70
2.8-2.9
<0.05
8
<0.08

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 1mm not permission, size in 0.5mm permit 3 balls
Flaw
Max. size in 0.3mm 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 density
High density, high hardness and the high grinding characters save the grinding time, enlarge the smashing room. So it can improve the grinding efficiency.