Low Sodium 92% Alumina Ball Aluminum Oxide Ceramic Balls For Battery Material Processing
Brand Name:Zhongli
Certification:CE ISO
Model Number:AGB-01
Minimum Order Quantity:1kg
Delivery Time:within 15 days
Payment Terms:L/C,T/T,Western Union
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Location:
Guangzhou China
Address:
Room 702A, No. 585, Airport Road, Tangjing Street, Baiyun District, Guangzhou City, Self-compiled 2341
Supplier`s last login times:
within 1 hours
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Product Description
●Chemical Composition:
| Composition | Al2O3 | SIO2 | CaO+MgO | Fe2O3 |
| Wt% | ≥92 | 7 max | ≤2 | ＜0.1 |
●Typical Properties:
| Specific Gravity g/cm3 | Bulk Density kg/L | Hardness Moh’s | Water Absorption % | Self wearing loss %(24hrs) | Compression Mpa |
| ≥3.65 | ≥2.2 | 9 | ＜0.01 | ≤0.012 | ≥2000 |
● Sizes Φ:
| Size(mm) | Size(mm) | Size(mm) | Size(mm) |
| 0.5-1.0 | 6.0 | 20.0 | 70.0 |
| 1.0 | 8.0 | 25.0 | 80.0 |
| 2.0 | 10.0 | 30.0 | 90.0 |
| 3.0 | 13.0 | 40.0 | 100.0 |
| 4.0 | 15.0 | 50.0 |
|
| 5.0 | 18.0 | 60.0 |
|
1. Mechanical & Physical Properties
| Property | Alumina (92%) | Alumina (99%) | Zirconia | Steel | Silica Sand |
|---|---|---|---|---|---|
| Density (g/cm³) | 3.6 | 3.9 | 6.0 | 7.8 | 2.2 |
| Hardness (Mohs/HV) | 9 (~1,500 HV) | 9 (~1,800 HV) | 8.5 | 6-7 | 7 |
| Wear Rate (g/ton) | 10–50 | 5–20 | 1–5 | 100+ | 300+ |
| Compressive Strength | 2,000 MPa | 2,500 MPa | 2,200 MPa | 500 MPa | Low |
Key Takeaways:
- 99% Alumina offers 30% lower wear than 92% grade.
- 2–5x longer lifespan vs. steel in abrasive slurries.
- Harder than zirconia but less tough (ideal for fine grinding).
2. Chemical & Thermal Resistance
| Property | Alumina (99%) | Performance Impact |
|---|---|---|
| Chemical Inertness | Resists pH 1–14 | Safe for acids/alkalis, pharmaceuticals. |
| Max Temperature | 1,600°C | Stable in kilns, calcination. |
| Thermal Shock | Moderate | Avoid rapid quenching (>200°C/min). |
| Contamination Risk | None | Zero metal ions (critical for Li-ion batteries). |
Vs. Competitors:
- Beats steel in corrosion resistance.
- Outperforms silica sand in wear & consistency.
3. Grinding Efficiency
- Particle Size Reduction: Achieves sub-micron fineness (D50 < 1µm) in wet/dry mills.
- Speed: Higher density (vs. silica) improves kinetic energy transfer.
- Consistency: Uniform shape/size prevents clogging in bead mills.
Best For:
- High-purity materials (e.g., ceramics, electronics powders).
- Slurry processing (paints, dyes).
4. Industry-Specific Performance
| Industry | Benefit of Alumina Balls |
|---|---|
| Mining | 50% lower replacement cost vs. steel in ore grinding. |
| Pharma | FDA-compliant, no endotoxin release. |
| Batteries | Prevents Fe/Ni contamination in cathode materials. |
| Paints | Maintains color purity (no metal leaching). |
5. Cost vs. Lifetime Analysis
| Media Type | Cost per kg | Lifespan (hours) | Cost per Ton Ground |
|---|---|---|---|
| Alumina (92%) | $5–10 | 2,000–3,000 | $0.50–1.00 |
| Steel | $2–4 | 500–800 | $2.00–4.00 |
| Zirconia | $50–100 | 5,000+ | $0.20–0.50 |
Trade-Off:
- Alumina balances cost and performance – Ideal when zirconia is over-spec.
Performance Summary: Why Choose Alumina?
✅ Cost-Effective: 3x cheaper than zirconia for moderate abrasion.
✅ High-Purity: 99.9% Al₂O₃ for sensitive applications (e.g., pharma).
✅ Versatile: Works in ball/attritor/planetary mills.
✅ Low Maintenance: Non-corrosive, easy to clean.
Limitations:
- Not for high-impact milling (e.g., hammer mills).
- Thermal shock risk in rapid cooling applications.
Need Custom Alumina Balls?
We supply:
- Sizes: 1mm–50mm (±0.01mm tolerance).
- Grades: 92%, 95%, 99%, ZTA-composite.
- Certifications: ISO 9001, RoHS, FDA (for pharma).
●Package:
25KG/woven bag,1000KG-1250KG for one pallet with shrink wrapped
Factory equipment
Exhibition & Partner
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FAQ
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What are alumina ceramic balls made of?
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They are made from aluminium oxide (Al₂O₃), a high-purity ceramic material known for its hardness and wear resistance.
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What are the key properties of alumina ceramic balls?
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High hardness, excellent wear resistance, chemical stability, high-temperature resistance (up to 1600°C), and electrical insulation.
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What are alumina ceramic balls used for?
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They are used as grinding media, bearing components, valve balls, and in applications requiring wear resistance and chemical inertness.
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Why choose alumina balls over steel or other ceramics?
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They offer superior wear resistance, chemical stability, and are lighter than steel, making them ideal for specific applications.
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What sizes are available for alumina ceramic balls?
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Sizes typically range from 1mm to several inches, depending on the application.
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Low Sodium 92% Alumina Ball Aluminum Oxide Ceramic Balls For Battery Material Processing
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