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critical rotational speed for ball milling Energy Saving Iron Ore Coarse Grinding Ball Mill,China Gold Ore Energy Saving Iron Ore Coarse Grinding Ball Mill,China Gold Ore Crusher Milling The centrifugal force caused by rotation of barrel brings the steel balls to a Choose the new-type transformation ball mill with the rotate speed different ....

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Know MoreFor instance, if your jar had in inside diameter of 90 mm and your milling media was 127 mm diameter lead balls, the optimum rotation would be 98 RPM Optimum RPM= 65 x Critical speed cascading action of the media stops...

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Know MoreThe mill speed is typically defined as the percent of the Theoretical Critical Speed, often abbreviated as Cs The Theoretical Critical Speed Cs of rotation is the speed in RPM at which an infinitely small particle will cling to the inside of the liners for a complete revolution...

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Know MoreThe 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 But the mill is operated at a speed of 15 rpm Therefore, the mill is operated at 100 x 15/307 = 4886 of critical speed...

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