18% Reduction in Grinding Media Consumption at South American Copper Mine

Client: Cerro Grande Mining (Chile)

Challenge:

Grinding medium-hard copper ore in secondary ball mills, the forged steel balls used had high out-of-round rates and a breakage rate exceeding 2%, leading to unstable grinding efficiency and high media addition rates.

Solution:

Introduced our "Taurus" series high-chromium wear-resistant cast balls (Material: Cr18%, Hardness: ≥62 HRC). Optimized metallographic structure through precision casting and special tempering processes.