In this experiment, a Horizontal Vibrating Disk Mill was tested. The test involved the fine grinding of brittle materials, especially for the production of CWS. The experiment was carried out in the laboratory using coal, limestone and cement clinkers. It was found that (1) the energy consumption of this mill was lower than that of a ball mill, (2) the product size was more uniform, (3) by using ceramics as the material for the tiles and the wheel, there was no ferritic element added to the ground material, (4) the feed rate and feed size greatly influenced the capacity of the mill, often causing over feeding, and (5) much more research is needed in order to complete the mill.