Mining & Aggregate
A major mine hoist OEM needed a custom braking solution for an emergency escape hoist positioned in a mine ventilation shaft. In an emergency, when the mine’s large primary hoist is not accessible, the escape hoist can be utilized to transport workers to the surface quickly.
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The operator of a limestone quarry in Florida needed to replace the braking systems on its massive dragline. After years of almost continual service, the original brakes had reached the end of their useful life. The dragline uses various numbers of brakes for the different drive systems that control the machine’s hoist, drag, swing and walking motions.
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Controlling loads in the heaviest engineering applications can require brakes capable of generating torque measured in the millions of newton meters. Tony George, Twiflex product manager, explains how these giant brake systems are engineered.
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Twiflex, part of Altra Industrial Motion, a leading global supplier of power transmission components, provided parking brakes for use on mine hoists at the Nkana site of Mopani Copper Mines in Zambia. Nkana is one of the largest copper and cobalt mines in Africa, with four underground mines, as well as an open pit.
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SME’s 2017 Annual Conference & Expo and the Colorado Mining Association’s (CMA) 119th National Western Mining Conference & Exhibition will provide the knowledge, insights and information you’ll need to not only survive but thrive in an era of rapid economic and market change.
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