... kinds of ores and other grindable materials. Working principle of Lab Roll MillThe ball mill is horizontal cylindrical rotation device, driven ... machine is with stable and reliable working condition. Features of Lab Roll Mill1. Wide usage,convenient maintenance;2 Body liners and ... resistance;3. Easy installation,adjustment,operation We have various of Lab Roll Mill,such as 900*1800, 900*2100, 900*3000 ...