Small Ball Mills for Sale 911MetallurgistThe CIW is a Small Ball Mill that s belt driven rigid bearing wet grinding trunnion or grate discharge type mill with friction clutch pulley and welded steel shell The 7 and 8 foot diameter mills are of flange ring construction with cut gears while all other sizes have cast tooth gears All these mills are standard with white iron bar wave type shell liners except the 8 foot diameter