Roller Mills Mineral Processing Metallurgy
In the griffin mill there is a single roller suspended in a similar way to the rollers in a huntington mill the roller is about 18 inches in diameter and rolls on the inside of a die ring 30 inches in diameter it takes material up to 1 inches in diameter and crushes either wet or dry it does not appear to be used anywhere either as an amalgamator or to prepare ore for amalgamation but