The new SpheRho from Netzsch is an agitator bead mill designed for super-fine dry grinding. This mill makes it possible to obtain extremely fine products, combined with very high throughput capacities, at low energy consumption levels. The mill can be operated on its own, in single passage, or with a Netzsch InlineStar, a high-performance fine classifier. When the SpheRho is paired with an InlineStar in a grinding/classifying circuit, mineral fillers with a particle size of less than 2 µm can be produced. At approximately 400 kW per cu. meter, the grinding chamber energy is much greater than that of conventional bead mills. The sturdy design allows for quick changeover of grinding media and agitator elements, making it easier to maintenance and service.