In analytical labs and biotechnology, precision and purity are paramount. One of the critical components that ensure contamination-free results in grinding and milling processes is the use of high-quality zirconia grinding balls. These balls are not only essential for achieving accurate results but also play a significant role in maintaining the integrity of samples.

By special moulding and sintering technology, ZOLI Y-TZP consists of yttrium stabilized zirconium oxide. Yttrium Stabilized Zirconia (Y-TZP) is the strongest ceramic material we offer. Y-TZP is a purely tetragonal phase, fine grain material. This material offers the highest flexural strength of all Zirconia based materials. It gives significant advantages in the fields of resistance to wear and absence of contamination.
●Chemical Composition:
Composition
|
ZrO2
|
Y2O3
|
Other
|
Content %
|
94.8±0.2
|
5.1±0.1
|
0.1%
|

●Physical Properties:
Specific Gravity
g/cm3
|
Bulk Density
kg/L
|
Hardness Hv
|
Fracture Toughness MPam1-2
|
Crushing Load
KN(Φ2.0mm)
|
Grain size
um
|
Wear loss
(%)
|
Sphericity
(%)
|
≥6.02
|
≥ 3.70
|
≥1250
|
9
|
≥20
|
≤0.5
|
≤0.08
|
≥98
|

● Ball Sizes :
Size(mm)
|
Size(mm)
|
Size(mm)
|
Size(mm)
|
Size(mm)
|
Φ0.08-0.12
|
Φ0.12-0.18
|
Φ0.18-0.22
|
Φ0.22-0.28
|
Φ0.28-0.35
|
Φ0.3-0.4
|
Φ0.4-0.6
|
Φ0.6-0.8
|
Φ0.8-1.0
|
Φ1.0-1.2
|
Φ1.2-1.4
|
Φ1.4-1.6
|
Φ1.6-1.8
|
Φ1.8-2.0
|
2.0-2.2
|
Φ2.2-2.4
|
Φ2.4-2.6
|
Φ2.6-2.8
|
Φ2.8-3.0
|
Φ3.0-3.2
|
Φ3.2-3.5
|
Φ4
|
Φ5
|
Φ6
|
Φ7
|
Φ8
|
Φ10
|
Φ12
|
Φ15
|
Φ17
|
Φ20
|
Φ25
|
Φ30
|
Φ40
|
Φ50
|
●Features:
u High density, high grinding efficiency, high hardness;
u Compact Tetragonal Zirconia Polycrystalline (Y-TZP) to give the beads outstanding anti-corrosion and wear resistance;
u Always keep the smooth surface and the good roundness;
u Homogenous structure at high hardness;
u 15% superior to Ceria Stabilized beads in wear rate, proved by many tests.

Zirconia grinding balls, particularly those stabilized with yttrium (YSZ), are renowned for their durability and efficiency. These balls are used extensively in ball milling and attrition milling processes, providing a virtually contamination-free solution for ceramic grinding and milling. The high density and hardness of zirconia make it an ideal choice for various industries, including pharmaceuticals, paints, inks, and more.
Yttrium stabilized zirconia beads are a type of zirconia grinding media known for their exceptional durability and density. These beads are crucial for applications that require high-end grinding media, such as pharmaceutical production, paint and ink dispersion, and lab milling operations. The yttrium stabilization enhances the mechanical properties of zirconia, making it suitable for high-impact environments.
- High Density: Zirconia's higher density compared to glass and alumina results in superior grinding efficiency and reduced grinding time.
- Durability: The robust mechanical, chemical, and thermal resistance ensure longevity under extreme conditions.
- Thermal Stability: Excellent thermal stability makes zirconia beads ideal for high-temperature applications.
- Low Porosity: Enhances wear resistance and reduces contamination risk.
Zirconia grinding balls are indispensable in several advanced industries due to their unique properties. Here are some of the primary applications:
- Pharmaceutical Industry: Used for grinding and milling active pharmaceutical ingredients with minimal contamination.
- Paint and Ink Production: Enhances dispersion efficiency, resulting in high-quality products.
- Ceramic Matrix Composites: Provides high-temperature resistance and excellent ionic conductivity.
- Solid Oxide Fuel Cells: Utilized for their thermal stability and ionic conductivity.
- Lab Milling Operations: Essential for minimizing contamination in analytical labs.
Choosing zirconia grinding balls offers several advantages, particularly in environments where sample purity is crucial:
- Contamination-Free Grinding: Ensures that samples remain uncontaminated, preserving their integrity for accurate analysis.
- Reduced Operational Costs: The durability and efficiency of zirconia beads lead to lower power consumption, equipment wear, and media abrasion.
- Improved Product Quality: Superior grinding efficiency contributes to better dispersion and milling results.
- Longevity: The wear resistance and low porosity of zirconia beads extend their lifespan, making them a cost-effective choice.
Selecting the appropriate size and type of zirconia grinding media is crucial for optimizing milling processes. Here are some criteria to consider:
- Media Size: Larger media are more efficient in breaking up large particles, while smaller media are better for milling smaller particles due to higher effective contact area.
- Gap Size: Media size should be significantly smaller than the gap size between stirring arms and mill walls to prevent jamming.
- Application Requirements: Consider the specific needs of your application, such as viscosity and desired grinding speed.
●Storage:
The grinding media should be stored in a dry and clean place.





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