80% Alumina Balls are high-performance grinding media used in ball mills for grinding and milling applications. Made from 80% aluminum oxide (Al₂O₃), these ceramic grinding balls offer a balance of hardness, wear resistance, and cost-effectiveness. They are widely used in industries such as ceramics, minerals processing, paints and coatings, cement, and chemicals for fine grinding and dispersion of materials.

Key Features of 80% Alumina Balls

1. High Hardness:

• 80% alumina balls have a Mohs hardness of 8-9, making them suitable for grinding hard materials.

2. Wear Resistance:

• Excellent wear resistance ensures long service life and minimal contamination of the ground material.

3. Chemical Stability:

• Resistant to acids, alkalis, and solvents, making them suitable for a wide range of applications.

4. High Density:

• Density of approximately 3.6-3.8 g/cm³ provides efficient grinding and impact force.

5. Smooth Surface:

• The smooth surface minimizes friction and wear during grinding.

6. Cost-Effective:

• Offers a balance between performance and cost, making it a popular choice for many industries.

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Applications of 80% Alumina Balls

1. Ceramics Industry:

• Used for grinding raw materials like feldspar, quartz, and clay in ceramic production.

2. Minerals Processing:

• Applied in the grinding of ores and minerals to achieve fine particle sizes.

3. Paints and Coatings:

• Used in ball mills for grinding and dispersing pigments and fillers.

4. Cement Industry:

• Used for grinding clinker and other raw materials in cement production.

5. Chemical Industry:

• Ideal for grinding and mixing chemicals and catalysts.

6. Pharmaceuticals:

• Used for fine grinding and homogenization of active pharmaceutical ingredients (APIs).

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Advantages of 80% Alumina Balls

• High Grinding Efficiency:

• Provides excellent grinding and dispersion due to its high density and hardness.

• Long Service Life:

• Resistant to wear, reducing the frequency of media replacement.

• Minimal Contamination:

• High chemical stability ensures minimal contamination of the ground material.

• Versatility:

• Suitable for a wide range of applications and materials.

• Cost-Effective:

• Offers a balance between performance and cost, making it a popular choice for many industries.

  
  

How 80% Alumina Balls Work

1. Loading:

• The alumina balls are loaded into a ball mill along with the material to be ground.

2. Grinding:

• The mill rotates, causing the balls to impact and grind the material.

3. Dispersion:

• The high-density balls efficiently disperse particles, achieving a uniform and fine grind.

4. Separation:

• The ground material is separated from the balls using screens or filters.

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Manufacturing Process

1. Raw Material Preparation:

• High-purity alumina powder is mixed with binders and additives to form a slurry.

2. Forming:

• The slurry is formed into balls using pressing or extrusion techniques.

3. Drying:

• The formed balls are dried to remove moisture.

4. Sintering:

• The balls are sintered at high temperatures to achieve the desired density and hardness.

5. Polishing:

• The balls are polished to achieve a smooth surface and uniform size.

6. Quality Control:

• The final product is tested for hardness, density, and dimensional accuracy.

Technical Specification of Grinding Ball

Typical chemical compositions: