# critical speed of ball mill formula

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The critical speed of ball mill is given by, where R = radius of ball mill; r = radius of ball For R = 1000 mm and r = 50 mm, n c = 307 rpm

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This formula calculates the critical speed of any ball mill Most ball mills operate most efficiently between 65% and 75% of their critical speed

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Use our online formula Ball Mill Critical Speed The mill speed is typically defined as the percent of the Theoretical Critical Speed, often

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Ball Mill Operating Speed - Mechanical Operations Solved Problems The critical speed of ball mill is given by, where R = radius of ball mill; r = radius of ball

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Mill Critical Speed Determination The "Critical Speed" for a grinding mill is defined as the rotational speed where , the formula used for Critical Speed is: N c .

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