Difference Between Critical Speed And Rotational Speed In Ball Mill

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    6. rod mills are capable of taking feed as large as 50 mm and reducing it to 300 mesh, but normally the product range is 8 65 mesh. rods are 25 150 mm dia. ratio of rod length to mill diameter is about 1.5. about 45% of the mill volume is occupied by rods. rotation is at 50 65% of critical. 7. ball mills are better suited than rod mills to fine grinding.

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    the critical speed is used for the determination of ball mill ideal operating speed. but for comparison, rod mills would operate between 50% to 95% of the critical speed.

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