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135hp Motor, Westinghouse DC Mill Motor, Type MC, 100 / 135 HP, 460 / 410 RPM, 230v, Frame 614-MCA, Wound Series, Style 69F45170, Serial 1S-70, Hot metal crane duty. 1 Inductionmotor selection for ball mill | Forum for Electronics,Mar 09, 2016· Hi All, I am planning to build a ball mill due to its high price. A ball mill is a device to grinder any media.,(I think 1/3 HP at least would be needed) 2-The jar rotation should be constant (80 RPM).,Only induction motor achieves long life. A motor with 2 or 4 pole pairs (1500 or 750 rpm @ 50 Hz) with pulley drive seems to be a,Ball mill, 7000 hp 4160 volt drive motor - YouTube,Apr 05, 2015· Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube.