99% High Purity Alumina Grinding Beads
Key Features
- High Purity: Al₂O₃ ≥ 99%, extremely low impurity level
- Low Wear Rate: Long service life with minimal material loss
- High Hardness: Mohs hardness ≥ 9
- High Density: Improves grinding efficiency, especially in fine grinding
- Excellent Chemical Stability: Resistant to acids and alkalis
- Uniform Sphericity: Stable and controllable grinding performance
Typical Applications
99% alumina grinding beads are widely used in industries requiring high material purity and precise particle size control, including:
- Fine chemicals
- Lithium battery materials (cathode & anode)
- Electronic and functional ceramics
- High-end coatings, inks, and pigments
- Pharmaceutical intermediates
- Mineral fine grinding and re-grinding stages
Recommended Grinding Stage: Fine grinding and ultra-fine grinding
Technical Specifications
| Item | Value |
|---|---|
| Alumina Content (Al₂O₃) | ≥ 99% |
| Density | ≥ 3.85 g/cm³ |
| Mohs Hardness | ≥ 9 |
| Water Absorption | ≤ 0.01% |
| Color | White |
| Shape | High sphericity |
Available Sizes
- Standard sizes:
0.1–0.2 mm / 0.2–0.3 mm / 0.3–0.4 mm / 0.4–0.6 mm / 0.6–0.8 mm / 1.0 mm
- Custom size ranges available upon request
Packaging
- Bucket
- Customized packaging and labeling available
Why Choose Our 99% Alumina Grinding Beads?
- In-house manufacturing with stable batch quality
- Specialized in ceramic grinding media and wear-resistant ceramics
- Technical support for media selection based on your process
- Extensive export experience for long-term and reliable supply
Frequently Asked Questions
Q: What is the difference between 99% alumina beads and 92% / 95% alumina grinding balls?
A: 99% alumina beads offer higher purity and lower wear, making them more suitable for contamination-sensitive and fine grinding applications.
Q: Are these beads suitable for sand mills or high-speed agitator mills?
A: Yes, they perform especially well in fine and ultra-fine grinding processes.
Q: Can samples be provided for testing?
A: Yes, samples can be provided based on your required size and test quantity.
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