# calculation of critical velocity in ball mill

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• ### Calculation Of Ball Mill Critical Speed

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Mill Critical Speed Determination. ... Note this is not the width of a lifter! You may use the Mill Liner Effective Width calculation to determine this value.

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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 = 30.7 rpm.

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A useful and simple equation describing the grinding momentum is M x V (mass x velocity), ... The theoretical critical speed of a ball mill is the speed at which the ...

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critical velocity equation for ball mill imges. ... This document can be used for the selection, calculation and check of inch series rolling bearings.

• ### ball mill critical speed calculation - …

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