Cast Grinding Steel Ball China Manufacturer
Ningwu produce four grades of cast chromium alloy steel balls: Low Chromium, Medium Chromium, High Chromium, and Super High Chromium. These cast steel balls are engineered for maximum wear resistance in mining, cement, and thermal power industries, complying with GB/T 17445 and international ISO standards. Our products feature strict chemical composition control, stable mechanical properties, ultra-low breakage rate, and precise dimensional tolerance.
Advantages of Cast Chromium Steel Balls
Hardness ranges HRC 58–65, with impact toughness ≥4.5 J/cm², balancing wear resistance and impact resistance.
Available from φ4mm to φ130mm to meet diverse grinding needs.
Single-chamber wear loss controlled within 20–80g/20kg, ensuring long service life and low operating cost.
Strict diameter deviation and misalignment control ensures uniform loading and stable mill operation.
Breakage rate controlled within 0.2%–1.0% (grade-specific), far better than industry average, reducing maintenance cost.
High Chromium or Super High Chromium balls are recommended for hard, abrasive gold ore to maximize wear life.
For standard products, our daily delivery capacity is 30 tons. For customized orders, the delivery schedule is determined according to the specific order quantity.
Ultimate Cast Steel Grinding Media Buying Guides
1. Assess Ore Abrasiveness：Highly abrasive ores require High/Super High Chromium; milder conditions can use Low/Medium Chromium.
2. Match Mill Size：Select ball size based on mill diameter and ore feed size for optimal grinding efficiency.
3. Verify Quality Certificates：We provide CNAS test reports to ensure compliance with your local standards.
4. Plan Long-Term Supply：Our 20,000-ton annual capacity ensures stable supply for multi-year contracts.
