
RELO Grinding Bodies BOND BALL MILL WORK INDEX TEST REPORT Sample Name Limestone density 265 gcm3 Test Procedure Bond Work Index Determination Method Test Equipment Standard Bond Ball Mill Mill size D X L 305 x 305 mm Mill volume 223 dm3 Lining of the mill smooth steel Rotation speed 70 rpm 85 of ncrit Grinding Media Relo C bodies Total grinding media mass Limestone bond ball mill work index youtube pdf 1332 kb maney publishing limestone are ground together in a ball mill to get sufficient fineness for the bond ball mill index test jktech measuring ore grindability in balls mills the bond ball mill work index is a measure of the resistance of the material to grinding in a ball mill