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The power predictions for ball mills typically use the following (kilowatthours per metric or short ton) W is the work index measured in a laboratory ball mill (kilowatthours per metric or short ton) P 80 is the mill circuit product size in Compared to ball mills HPGRs achieve a 30 to 50% lower specific energy consumption, although

power consumption calculation formulas for ball mill. Ball Mill Design/Power Calculation. The ball mill motor power requirement calculated above as 1400 HP is the power that must be applied at the mill

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