Ceramic Milling Ball, Grinding Ball for Lab or Industry Grinding and Dispersing

When it comes to milling in industries or laboratories, the choice between zirconium balls, steel balls, and alumina grinding balls is crucial. In today's market, ceramic balls, especially those made of alumina, dominate the milling scene due to their cost-effectiveness. However, the decision to use zirconium balls, steel balls, or alumina grinding balls should be based on various factors, including material properties, electricity consumption, and grinding efficiency.

Density Matters

Density plays a significant role in choosing the right milling ball. Here's a quick density comparison:

• Zirconium Balls: 6.0 g/cm³

• Steel Balls: 7.85 g/cm³

• Alumina Grinding Balls: 3.6 g/cm³

Understanding Alumina Content

Alumina content is a critical factor in classifying alumina grinding balls:

• 60%-65% Alumina Content: Medium Alumina Balls

• 75%-80% Alumina Content: Medium-High Alumina Balls

• Above 90% Alumina Content: High Alumina Balls

High alumina balls are further categorized into 90 ceramic, 92 ceramic, 95 ceramic, and 99 ceramic. 99 ceramic balls, due to their high production costs, are primarily handmade by certain specialized ceramic factories.

Different Applications

• Medium Alumina Balls and Medium-High Alumina Balls: These are widely accepted in most ceramic factories due to their reasonable pricing, primarily used for grinding ceramic raw materials.

• High Alumina Balls: Known for their high strength, hardness, wear resistance, and other excellent characteristics, high alumina balls find extensive use in processing various heavy and hard materials in ceramics, glazing, glass, chemical, and other industries. Among them, 92% alumina balls are commonly used.

Wear and Toughness

• Wear Resistance: Steel balls have the highest wear rate, followed by alumina grinding balls, with zirconium balls having the least wear.

• Toughness: Zirconium balls and steel balls exhibit better toughness compared to alumina grinding balls.

Material Compatibility

Material compatibility is vital when choosing the right milling ball:

• Steel balls are not resistant to acidic or alkaline environments.

• Alumina grinding balls and zirconium balls are acid and alkali-resistant, making them suitable for a wide range of applications.

Impact on Materials

The choice of milling ball also depends on the specific material requirements. Some materials cannot contain iron, making steel balls unsuitable. In such cases, alumina grinding balls and zirconium balls become the preferred options.

Price Considerations

• Steel balls and alumina grinding balls are competitively priced, with zirconium balls being more expensive. However, due to their outstanding properties, zirconium balls are widely used as grinding media in high-speed dispersers and sand mills.

In summary, the selection of milling balls, whether zirconium, steel, or alumina, should be a well-informed decision based on the specific needs of your application. Each type of milling ball offers distinct advantages and disadvantages, making it essential to consider factors such as wear resistance, material compatibility, and price when making your choice.