Ball Mills
WEBFeb 13, 2017 · The only conical ball mills on the market are those made by the Metso. 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 ...