High-performance alumina grinding balls are engineered for precision grinding in demanding industrial applications. Made from high-purity alumina (Al₂O₃) or zirconia (ZrO₂), they offer unmatched wear resistance, hardness, and chemical stability, making them ideal for dry and wet grinding processes in ceramics, mining, chemicals, and refractory industries.
Compared to traditional steel balls or natural pebbles, our ceramic grinding media ensures higher grinding efficiency, lower contamination, and extended service life, reducing operational costs and improving product quality.
Formed by isostatic pressure molding, good toughness, can greatly improve the grinding efficiency, reduce the loss of grinding media.
Product Parameters
|
Alumina Grinding Ball |
JU-92 |
JU-95 |
|
|
Bulk Density (g/cm3) |
≥3.6 |
≥3.65 |
|
|
Hardness(Mohs) |
9 |
9 |
|
|
Wear |
＜0.015 |
＜0.012 |
|
|
Water Absorption(%) |
＜0.01 |
＜0.01 |
|
|
ChemicalComposition |
Al2O3 |
≥92 |
≥95 |
|
Size(mm) |
13-90 |
||
Product Usage:
High alumina ceramic grinding balls are widely used in:
Ceramics & Enamels – Grinding glazes, frits, and raw materials.
Minerals & Mining – Processing quartz, feldspar, kaolin, and metal powders.
Paints & Coatings – Ultra-fine dispersion of pigments.
Pharmaceuticals & Chemicals – Contamination-free milling.
Cement & Refractories – Efficient grinding of hard materials.
Equipment Compatibility:
Ball mills
Vibratory mills
Attrition mills
Pot mills
Product Advantages
Extreme Wear Resistance:
5-10x longer lifespan than steel or pebble media.
High Hardness (Mohs 9+):
Minimizes ball breakage and material loss.
Corrosion & Chemical Resistance:
Ideal for acidic/alkaline environments.
Low Contamination:
Ultra-low metal ion release for high-purity grinding.
Thermal Stability:
Performs consistently in high-temperature processes.
Customizable:
Available in 3mm–50mm diameters (92%, 95%, or 99% alumina).
Product technology:
To ensure maximum durability and performance, our ceramic grinding mill balls undergo:
Key steps include:
High-Purity Raw Materials – Selected alumina/zirconia powders.
Precision Forming – Isostatic pressing for uniform density.
High-Temperature Sintering – Fired at 1500°C–1700°C for optimal hardness.
Strict Quality Control – Density, hardness, and wear resistance testing.
Why Choose Us?
23+
years experience focus on refractories field
2 plants
with 3 sets of tunnel kilns for 120,000 tonnes capacity
3 QC
Labs Technology Centres
120+ employees
with ISO9001,TUV,SGS,Intertek certifications
100+
abroad customers in 50+ countries
20+
major industry furnace projects yearly
Packing
Standard Packaging: 25kg woven bags or 1-ton super sacks (customizable).
Secure Transport: Wooden pallets for international shipping.
Moisture-Proof & Anti-Impact – Ensures safe delivery.
FAQ
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