ZTA (Zirconia Toughened Alumina) ceramic grinding balls are high-performance composite grinding media made from alumina (Al₂O₃) as the base matrix and zirconia (ZrO₂) as the toughening phase. Sintered at high temperatures, these balls offer superior hardness, strength, sphericity, low wear, and chemical stability. They are widely used in coatings, inks, minerals, pesticides, new energy materials, and electronics industries for both wet and dry grinding and dispersing applications.
Product Properties
Downloads & Resources
| Resource Type | Link |
|---|---|
| Technical Data Sheet (TDS) | Zirconia Toughened Alumina (ZTA) Bead Material Properties (TZ40) – SU0530 |
Product Details
ZTA (Zirconia Toughened Alumina) ceramic grinding balls are high-performance composite grinding media made from alumina (Al₂O₃) as the base matrix and zirconia (ZrO₂) as the toughening phase. Sintered at high temperatures, these balls offer superior hardness, strength, sphericity, low wear, and chemical stability. They are widely used in coatings, inks, minerals, pesticides, new energy materials, and electronics industries for both wet and dry grinding and dispersing applications.
Key Features
- Composite Material Advantage: Al₂O₃ provides base hardness and chemical stability, while ZrO₂ enhances impact resistance and fracture toughness for longer service life
- Precision Manufacturing: Sphericity ≥96% ensures uniform grinding and reduces media wear
- High Hardness & Strength: Improves grinding efficiency and accommodates high-density or high-viscosity materials
- Safe & Environmentally Friendly: Non-toxic, non-flammable, reusable, and pollution-free
Product Series Comparison
| Property | TZ40 – Cost-Effective Standard Type | TZ45 – High-Performance Precision Type |
|---|---|---|
| Chemical Composition | Al₂O₃ + ZrO₂ ≥90%, SiO₂ ≤5%, Other ≤3% | Al₂O₃ + ZrO₂ ≥95%, SiO₂ ≤2%, Other ≤3% |
| Specific Gravity (g/cm³) | 3.95 – 4.05 | ≥4.45 |
| Bulk Density (g/cm³) | ≥2.4 | ≥2.4 |
| Color | Light Yellow | Light Yellow |
| Vickers Hardness (GPa) | ≥12 | ≥12 |
| Crushing Strength (Φ3.0 mm, N) | ≥1500 | ≥1600 |
| Available Size Range (mm) | 0.3 – 20 | 0.3 – 30 |
| Sphericity / Roundness (%) | ≥96 | ≥96 |
| Core Positioning | Cost-sensitive standard grinding | High-end precision grinding, import replacement |
Recommended Applications
- TZ40 – Cost-Effective Standard Type
Conventional coatings, inks, and pesticides
Mineral coarse grinding and high-throughput processes
Wet and dry industrial grinding - TZ45 – High-Performance Precision Type
High-end coatings, electronic materials, and new energy materials
Ultrafine and high-viscosity material grinding
Low wear, high-efficiency precision milling
Core Advantages
- Improved Grinding Efficiency: High density and hardness, sphericity ≥96% ensures uniform grinding and reduced media wear
- Extended Service Life: ZrO₂ toughening improves impact resistance and minimizes breakage and wear
- Wide Applicability: Size range 0.5–20 mm (TZ40) and 0.5–30 mm (TZ45), compatible with most horizontal and vertical mills
- Safe & Environmentally Friendly: Non-toxic, reusable, pollution-free, and easy to handle
Frequently Asked Questions
ZTA ceramic grinding media is composed of Al₂O₃ (alumina) as the base matrix and ZrO₂ (zirconia) as the toughening phase.
ZTA grinding balls offer superior hardness, high impact resistance, low wear, and chemical stability, making them ideal for various industrial grinding applications.
ZTA ceramic grinding balls are widely used in coatings, inks, minerals, pesticides, new energy materials, and electronics industries.
Yes, ZTA grinding balls are non-toxic, non-flammable, reusable, and pollution-free, making them safe for industrial use.
TZ40 is a cost-effective standard type, while TZ45 is a high-performance precision type with higher ZrO₂ content and larger size range.
Yes, ZTA grinding balls are compatible with most horizontal and vertical mills due to their wide size range and high sphericity.
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