Ball Mills
WEBFeb 13, 2017 · The only conical ball mills on the market are those made by the . Fig. 12 shows the construction of this type of mill. ... The Hardinge Mill has conical ends. The mills are charged with highcarbon steel rods cut a few inches shorter than the interior length of the mill. As a rule 3in. diameter rods are employed for primary and 2in. for ...