Goldpro high-hardness forged balls (surface hardness ≥60 HRC) were tested against locally produced Russian balls in an MQY 3.6 × 4.0 m mill (June–October 2025; 180,200 tonnes processed). Specific consumption fell by 32.6% for 100 mm balls and 39.7% for 60 mm balls, while throughput and power consumption remained stable.
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Goldpro grinding media entered the Ministro Hales Concentrator under CODELCO (Chile), the world's largest copper producer. Equipped with 140mm steel balls for SAG milling and 76.2 mm steel balls for ball milling, 10 months of continuous, stable supply earned the client's "Major Contributor Supplier for Grinding Media" certification, empowering green and smart mining operations.
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Goldpro supplied customized 140 mm high-toughness forged grinding balls for a large 10.97 × 6.3 m SAG mill operating in an SABC grinding circuit. Goldpro provided 30 days of on-site support to facilitate the gradual replacement of the existing grinding balls. Consequently,Mill throughput increased from 1,000 t/h to 1,140 t/h (+14%), while specific grinding ball consumption decreased from 0.72 to 0.65 kg/t.
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