Warman® MCR® pump more than doubles wear life to save Agnico Eeagle’s Laronde Gold Mine US$70,000 p.a.
A Warman® MCR® pump improved wear life by 130% in this SAG mill discharge application at LaRonde gold mine in Quebec.
After 1,400 hours of operation in a demanding application, this Warman® MCR® 250 pump impeller shows minimal signs of wear.
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Modern design and superior wear materials halve annual pump rebuilds in highly abrasive application, reducing overall maintenance time by 40%.
The superiority of genuine Warman® pumps and parts was proven in a trial comparing the performance of a Warman® MCR® 250 pump against a Warman® AH® pump fitted with non-genuine spare parts at Agnico Eagle Mines’ LaRonde gold mine in Quebec, Canada.
The mine had been using two Warman® AH® 12/10 slurry pumps to manage its SAG mill discharge since operations commenced in 1988. While these pumps were the latest technology at the time, the very coarse slurry was causing the pumps to wear out after just 1,600 hours.
“When a replicator proposed a trial of non-OEM pump liners and parts instead of our genuine Warman parts, they promised to double the wear life of the existing pump components. Our engineers investigated the root cause of the wear life problems experienced and decided a Warman MCR pump would achieve much better results compared to the AH pump with non-OEM parts”, states Mike Swintak, Regional Senior Product Manager for Weir Minerals.
Instead of doubling it, the other manufacturer’s liners and impellers decreased the pump’s wear life by 300 hours, wearing out after just 1,300 hours. In addition to requiring six rebuilds per year, the non-genuine parts interrupted production due to discovery of premature cracks in the liner.
Meanwhile, the Warman® MCR® 250 pump achieved 3,000 hours of continuous operation, requiring only three rebuilds and lowered spare parts costs alone by 36%, or US$70,00 per year.
“The fantastic results achieved at LaRonde weren’t just due to the superior wear resistance offered by the pump’s Ultrachrome A05 wear material and superior hydraulic design of the MCR pump. Our engineers worked closely with Angico Eagle operators to remove problems throughout the circuit contributing to the low wear life being achieved, such as revising their pump box level control procedures and monitoring system to ensure a constant level of 50-75%,” says Swintak.
Weir Minerals Africa
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