# ZENITH

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R is radius of ball mill r is radius of balls For a mill diameter d 3 64 m and a radius of mill R 1 82 m and a ball size distribution along the mill like in the next table Table 1 Ball size distribuion Percent Ball Diameter 12 30 mm 20 25 mm 27 20 mm 41 17 mm We obtain a critical speed of 0 37 Hz Hence critical ##### ball mill critical speed black powder arcadria eu

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The critical speed of the mill amp c is defined as the speed at which a single ball will just remain against the wall for a Since critical speed is larger at smaller radii the centrifuging layer gets steel balls in a ball mill or large lumps of ore in an ##### critical speed ball mill formula BINQ Mining

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