Alumina Grinding Media:
-High density, high hardness, low wear loss, regular shape, impact resistance, corrosion resistance, etc.
-Mainly used in ceramic, glaze, paint, zirconia silicate, aluminum oxide, quartz, silicon carbide, talc, lime carbonate, kaolin, titanium and other materials grinding.
-Size: 0.5-1mm, 1-1.5mm, 1.5mm, 1.5-2mm, 2mm, 3mm, ...60mm
-Density: 3.6g/cm3
-Color: white
-Monthly production capacity: 800tons per month
Product: HCGA360 (92%Alumina Ceramic Balls)
Item Technical Data Remarks
Composition AL2O3: ≥92%
SiO2: ≤5%
Fe2O3: ≤0.1%
Others: ≤3%
Specific density(g/cm3) ≥3.60
Vickers hardness(GPa) ≥12 HV5
Wear volume(g/kg.h) ≤1.6 Tested in high speed ball mill
Crushing hardness(Φ3.0) ≥1050N Diameter 3mm ceramic bead tested
Appearance good No crackle, no sticky silicon
Roundness ≥95%
Remarks: The wear volume of above diameter 15mm ceramic balls: 0.01g/kg.h (equivalent abrasion≤ 0.003‰ )
Physical property:
| |
HCGA320 |
HCGA360 |
HCGA370 |
| Al2O3(%) |
≥75 |
≥92 |
≥90 |
| Mohs hardness |
8 |
9 |
9 |
| Density(g/cm³) |
≥3.2 |
≥3.6 |
≥3.7 |
| Wear loss rate ‰ |
<0.15 |
<0.1 |
<0.05 |
| Standard sizes |
Φ1-13mm |
Φ0.5-60mm |
Φ0.5-30mm |
-Product picture:
-Packing and Production line:
25kgs per woven ba or 1000kgs per jumbo bag per wooden pallet
Audited Supplier 
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