Ball Mills - 911 MetallurgistDec 23, 2017 . Rod Mills; Tube Mills; Pebble Mills; Wet or dry grinding; Method of Mill Discharge; Optimum Ball Mill Speed; Ball Mill Lining; Ball Mill Charge volume; Sizing of .. The grates are of alloy steel and are cast integral with the lifter bars which are essential to the efficient operation of this type of ball or rod mill.iron ore ball mill dry type design layout,Grinding Mill Design & Ball Mill Manufacturer - 911 MetallurgistJan 11, 2018 . Type CHRK is designed for primary autogenous grinding, where the large feed opening requires a hydrostatic trunnion shoe bearing. Small and batch .. Big dry grinding ball mills are often two-compartment mills, with big balls in the first compartment and small balls or cylpebs in the second one. An extra.