Forged and Cast High Chrome Grinding Media – Australian Gold Mine Case Study (Sep 2024)

An Australian gold mine undertook a marked ball wear test in July 2024 that proved the effectiveness of Molycop’s 90mm 15%Cr cast high chrome ball.

  • Molycop’s cast high chrome product provided a 3.2% lower wear rate than the equivalent grade from an alternative cast high chrome ball supplier.
  • Molycop identified more cost-effective options using their cast high chrome products.
  • Molycop grinding media is available globally.
An Australian gold mine site decided to undertake a marked ball wear test in July 2024, comprising both forged and cast high chrome grinding media. A total of eight different grinding media grades were tested among four suppliers, with ball diameters ranging from 90mm to 94mm. 

The most cost-effective ball was Molycop’s 90mm 15%Cr cast high chrome ball, improving on the incumbent product by 16%.

The test was completed in early September 2024, following a total of 1,224 mill operating hours.

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