grinding media ball 90mm

A 90mm grinding media ball is commonly used in ball mills and other grinding equipment for crushing and grinding raw materials in industries such as mining, cement, and chemical processing. Here are some key details about 90mm grinding balls:

1. Material Types

• High Chrome Steel (High-Cr): Offers excellent wear resistance (HRC 58-65), suitable for abrasive materials.
• Forged Steel: High toughness, used in impact-heavy applications.
• Stainless Steel: Corrosion-resistant, used in food or chemical industries.
• Ceramic (Alumina/Zirconia): Used where contamination must be avoided (e.g., ceramics, paints).

2. Applications

• Mining (ore processing)
• Cement production
• Power plants (coal pulverization)
• Chemical & fertilizer industries



3. Key Specifications

• Diameter: 90mm (± tolerance per standards like ISO/DIN)
• Hardness: Typically HRC 58–65 for high-chrome balls
• Density: ~7.8 g/cm³ (steel), ~3.6 g/cm³ (alumina ceramic)
• Impact Toughness: ≥4 J/cm² (forged/high-chrome balls)

4. Standards & Certifications

• ISO 9001, ASTM E323
• Common standards: DIN 53230, GB/T 17445

5. Selection Factors

• Material hardness vs. abrasiveness of feed
• Mill type (ball mill, SAG mill)
• Corrosion/chemical exposure

6. Suppliers & Pricing

Suppliers include:

• Magotteaux (global leader)
• ME Elecmetal
• TOYO Grinding Ball

Prices vary by material (~$800–$1,500/ton for steel balls; higher for ceramics).

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