Equipment Classifieds ICMJ Prospecting GOLD MINING PORTABLE BALL MILL 2 x4 w/ 1/2 ton extra balls In barely used condition Used briefly for gold mine research design at the shop only never seen production work at the mine Portable trailer mounted Comes with 15 x30 long stacking conveyor 6 x10 Hopper stand frame mounted Stationary single deck grizzly screen