Industrial 35mm ceramic Alumina Grinding Balls Beads For Ball Mill
Price:
Negotiable
MOQ:
1kg
Delivery Time:
within 15 days
Brand:
Zhongli
Product Description
Industrial 35mm Ceramic Alumina Grinding Balls Beads for Ball Mill
High-Performance Alumina Balls for Industrial Grinding
Alu beads (alumina balls) are premium ceramic grinding media made from aluminum oxide (Al2O3), offering exceptional hardness, wear resistance, and chemical stability for demanding industrial applications.
Key Properties
- High Hardness: Mohs 9 rating withstands high-pressure grinding environments
- Superior Wear Resistance: Extended lifespan reduces replacement frequency
- Chemical Stability: Inert material prevents contamination of processed materials
- Thermal Stability: Performs reliably in high-temperature applications up to 1600°C
Technical Specifications
Chemical Composition
| Composition | Al2O3 | SiO2 | CaO+MgO | Fe2O3 |
|---|---|---|---|---|
| Wt% | ≥92 | 7 max | ≤2 | ＜0.1 |
Physical 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 |
Available Sizes (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 |
Performance Comparison
| 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 Advantages
99% Alumina offers 30% lower wear than 92% grade
2-5x longer lifespan vs. steel in abrasive slurries
Harder than zirconia but more cost-effective for fine grinding
Zero metal ion contamination (critical for Li-ion batteries)
Industry Applications
| Industry | Benefit |
|---|---|
| Ceramic Industry | Efficient grinding of ceramic powders for high-quality products |
| Chemical Industry | Chemical inertness prevents contamination of compounds |
| Mining | 50% lower replacement cost vs. steel in ore grinding |
| Paints & Coatings | Maintains color purity with no metal leaching |
| Pharmaceutical | FDA-compliant, no endotoxin release |
Packaging Information
25KG/woven bag, 1000KG-1250KG per pallet with shrink wrap
Frequently Asked Questions
What are alumina ceramic balls made of?
They are made from aluminium oxide (Al₂O₃), a high-purity ceramic material known for its hardness and wear resistance.
What are the key properties of alumina ceramic balls?
High hardness, excellent wear resistance, chemical stability, high-temperature resistance (up to 1600°C), and electrical insulation.
What are alumina ceramic balls used for?
They are used as grinding media, bearing components, valve balls, and in applications requiring wear resistance and chemical inertness.
Why choose alumina balls over steel or other ceramics?
They offer superior wear resistance, chemical stability, and are lighter than steel, making them ideal for specific applications.
What sizes are available for alumina ceramic balls?
Sizes typically range from 1mm to several inches, depending on the application.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Guangzhou Zoli Technology Co.,Ltd.
Location
Room 702A, No. 585, Airport Road, Tangjing Street, Baiyun District, Guangzhou City, Self-compiled 2341
Contact Person
Ain Qiu