in liner metallurgy, lifter profile and grate configuration must be paired with customer-specific testing to truly deliver results. “Every plant is different and every ore body is different. The answer is not a cat- alogue product but a collaborative design process.” The conclave included talks and case studies from a number of specialists and mine operators including Sandile Nkwanyana of Mintek, Flavio Silva de Moura of Lundin Mining Brazil, Jennifer Giron, ex-senior metallurgist at FQML now working at Tega, as well as Process Manager, Steven Zulu and Vamumusa Manyathi, who is the Business Development Manager of Tega. The combined expertise painted a clear picture which showed that the era of treating mill liners as consum- ables is over. Tega’s approach of marrying business metrics with technical fundamentals and engineering is able to help mines to unlock hidden efficiencies and improve profitability. l
Aubrey Mainza of the Centre for Mineral Research spoke of the importance of balancing all aspects of mills.
operators to think in small, precise corrections. Sumeet Pahi rounded off the session by highlighting how Tega is translat- ing these insights into product innovation. “Discharge systems are too often neglected despite being central to circuit stability. Poor grate design, block- ages or inadequate media can create ‘washing machine’ effects where slurry circulates without exiting the mill, wasting energy and hammering liners.” As a result Tega’s research and development teams have developed optimised discharge designs and wear monitoring tools that not only extend liner life but also stabilise grind conditions. Sumeet explained that innovation
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MODERN QUARRYING QUARTER 4 | 2025
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