COMBALLS GROUP.
Qingdao ,266061, China
http://www.comballs.com
Phone: +86 532 88961235/88961237/88961238;Fax:+86 532 88961236 / 83883615
sales@comballs.com

Comballs Ceramic Balls

Alumina Grinding MediaZrO2 Gring MediaZrSiO4 Grinding Beads

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

 ceramic ball

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

Comballs 75 Alumina Balls

 Comballs 90/92 Alumina Balls
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