David Hendley on wed 26 nov 03
I'm not sure about this, but remember when Taylor was asking
about ball mills a few weeks ago? I told him that when I got my
ball mill I was given spherical porcelain grinding media, as
well as cylindrical, with the instruction that the balls were for
wet grinding and the cylinders were for dry grinding.
My experience has been that, indeed, the porcelain cylinder-
shaped media helps prevent caking of material when dry grinding.