High-Chrome Grinding Balls for CODELCO Copper Mine, Chile

Application: φ10.5m SAG Mill, CODELCO Copper Mine, Chile

Challenge: High wear rate and breakage ratio of traditional grinding balls. Long delivery caused production interruption and high cost.

Solution: High-chrome cast grinding balls (Cr≥26%), centrifugal casting + precise heat treatment. Hardness HRC62-65, breakage rate <0.5%.

Results:

• Ball consumption reduced by 8.3%
• Mill hourly capacity increased by 6.7%
• Annual cost saved: USD 1,860,000 per line
• Delivery time shortened by 40%

Feedback: Stable quality, reliable supply. We are a key supplier for large copper mines in Chile.