TZ40 Zirconia Toughened Alumina (ZTA) Grinding Balls – 6.5mm
TZ40 6.5mm grinding balls are made from Zirconia Toughened Alumina (ZTA), combining the high hardness of alumina with the toughness of zirconia. This material design significantly improves impact resistance and reduces breakage compared with conventional high‑alumina grinding media, making TZ40 especially suitable for fine grinding and regrinding applications.
With a balanced performance between wear resistance, toughness, and cost, TZ40 is widely used as an alternative to pure alumina balls and, in some cases, to zirconia balls where cost control is important.
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Product Introduction
Key Features
- Enhanced toughness: Zirconia phase improves fracture toughness and reduces chipping
- Stable wear performance: Lower wear rate than standard alumina grinding balls
- Consistent roundness and size control: Ensures stable milling efficiency
- Cost‑effective solution: Better lifetime performance compared with alumina, lower cost than full zirconia
- Suitable for fine grinding: Optimized 6.5mm size for secondary and fine milling stages
Typical Applications
- Mining and mineral processing (fine grinding stage)
- Calcium carbonate (GCC & PCC)
- Ceramic raw materials
- Pigments and coatings
- Chemical powders
- Battery and advanced material precursors
Technical Specifications
| Item | Specification |
|---|---|
| Product Grade | TZ40 |
| Ball Diameter | 6.5 mm |
| Material | Zirconia Toughened Alumina (ZTA) |
| Al₂O₃ Content | ≥ 92% |
| ZrO₂ Content | ~ 8% |
| Density | ≥ 4.0 g/cm³ |
| Hardness (Vickers) | ≥ 1400 HV |
| Wear Rate | Low |
| Color | Off‑white / light ivory |
Note: Values may vary slightly depending on operating conditions and testing methods.
Advantages in Milling Operations
Compared with traditional alumina grinding balls, TZ40 grinding media offer:
- Longer service life under high‑impact conditions
- Reduced contamination of milled material
- More stable particle size distribution
- Lower overall grinding cost per ton
Packing Options
- 25 kg woven bags with plastic liner
- 1 ton jumbo bags
- Wooden pallet or wooden case (on request)
Quality Control
- Each batch of TZ40 grinding balls is strictly inspected for:
- Size tolerance and roundness
- Density and hardness
- Visual defects and internal cracks
Why Choose Our TZ40 Grinding Balls
- Stable production and export experience
- Consistent quality for long‑term supply
- Technical support for media selection
- Custom packing and logistics solutions
If you are looking for 6.5mm ZTA grinding balls with reliable performance and competitive cost, TZ40 is a proven choice for fine grinding applications.
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