Application: High quality wear resistant alumina micro bead is widely used in superfine grinding in the field of Nonmetal mineral powder. It is the best milling media for Stirring Mill, Sand Mill, and Shaking Mill. They are very suitable for Ceramic industry, paint industry, Color industry, Printing Ink industry, dye industry, Rubber industry, coating industry and powder processing industry. Specially applicable for grinding alumina powder, superfine zirconium silicate，quartz,corundum,silicon carbon, superfine titanium white powder，feldspar，zeolite，wollastonite，steatite, large calcium carbonate ,kaolin etc.
TECHNICAL DATA OF ALUMINA MICRO BEADS
Name |
90%AlO3 |
92%AlO3 |
Specific Gravity( g/cm3) |
3.55～3.60 |
3.62～3.64 |
Mohs Scale Hardness |
9 |
9 |
Compression Strength (MPa) |
≥1850 |
≥2000 |
Water absorption (%) |
0.010 max. |
0.010 max. |
24hr-Self wearing (%) |
0.015max |
0.012max |
Color |
White |
White |
Size available, |
φ1mm-φ25 mm Any size breakdown |
|
|
Size Tolerance |
φ1mm----φ10mm |
+/-1.0mm |
φ11mm---φ25 mm |
+/-1.5mm |
|
ADVANTAGE ANALYSIS：
This product has advantages of: High specific gravity, excellent toughness and impact Resistance, low wear loss, smooth surface, fine chemical stability, good erosion resistance and non-contamination to grinded material. If appropriate charging ratio can be made, it can reach high grinding efficiency with fineness researching D50≤2μm. It is the most ideal grinding media for ultra-fine grinding.
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