Formulations of suspensions to be produced by wet milling are becoming more diverse and exacting. At the same time, the pressure on costs, especially in high-volume production, has continued to rise. The DYNO®-MILL UBM series with the patented agitator DYNO®-DISC BC is a new agitator bead mill designed to answer the demand for high production capacity, adaptability to a wide range of applications and low maintenance costs. The fundamental steps in the development of the new agitator bead mill are described in this article.