A crushing plant delivered ore to a wet grinding mill for further size reduction. the size of crushed ore (f 80) was. 4.0 mm and the s.g. 2.8 t/m 3. the work index of the ore was determined as 12.2 kwh/t. a wet ball mill 1 m 1 m was chosen to grind the ore down to 200.Alibaba.com offers 2,147 grinding ball mill for mineral ore processing products. a wide variety of grinding ball mill for mineral ore processing options are available to you, such as warranty of core components, local service location, and applicable.