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# Roll Crusher With Feed And Product Size

A pair of rolls is to take a feed equivalent to spheres of 3 cm in diameter and crush them to spheres having 1 cm diameter. if the coefficient of friction is 0.29, what would be the diameter of rolls? calculations: the following formula relates the coefficient of friction (m), radius of rolls (r), radius of product (d), and radius of feed (r):.

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The following formula relates the coefficient of friction ( m ), radius of rolls (r), radius of product (d), and radius of feed (r): where a is related to the coefficient of friction by the relation, we have, m = 0.29. therefore, a = tan -1 (0.29) = 16.17 o. and we have, d = 0.5 cm; r = 1.5.

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