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Precision Balls
Aluminum Oxide(Alumina,Al2O3) / Silicon Nitride(Si3N4) Zirconia(ZrO2)
0.8mm - 1/2" G3/G5
0.8mm - 1.0" G10/G16
0.8mm - 38mm G20/G28
0.8mm - 2.0" G40/G100/G200
Alumina (Al2O3) Grinding Media
Al2O3: The Al2O3 medias are made with super fine alumina powders, moulded by bag isostatic pressing and sintered at high temperature.High hardness, Non-conductive, Non-magnetic, Super insulatibity and Low price Applicable occasion: Ceramics, Building materials, Chemicals, Cements, Paints, Nonmetallies, Mechanical polishing Size: Balls:Φ1, Φ2, Φ3,Φ5, Φ6.5, Φ10, Φ15, Φ20, Φ25, Φ30, Φ35mm,Φ40, Φ50, Φ60, Φ70mm Cylinders:Φ12.7×12.7, Φ19.1×19.1, Φ25.4×25.4, Φ38×38, Φ50×50 mm,Φ60×60, Φ70×70mm
 

Specification: 75% Alumina

Real specific weight:

3.10 min.

Chemical composition (%):

Al2O3

75+/-1%

Hardness (Mohs):

 8

Roundness (%):

>90

Crushing Strength(50mm): 

min.1100kgf/mm2

Water absorption:

0.03% max.

Self wearing:

 0.04% max.(24h)

Color:

White

Sizes available, Æ (mm):

40, 50, 60mm

 

Specification: 90/92 Alumina

Real specific weight:

3.6 2min.

Chemical composition (%):

Al2O3

min.  91+/-1%

SiO2

7% max.

CaO+MgO+Fe2O3+others:

 2%

Hardness (Mohs):

 9

Roundness (%):

>90

Crushing Strength(50mm): 

min.2000kgf/mm2

Water absorption:

0.015% max.

Self wearing:

 0.019% max.(24h)

Color:

White

Sizes available, Æ(mm):

10, , 20, 30,-120

 
 
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