Extremely powerful dispersing instrument for volumes from 2 - 50 l (H2O) for typical pilot plant stations with digital speed display. It offers a wide speed range from 1000 – 9,500 rpm that enables users to work at high circumferential speeds even with small rotor diameters. Three rotor-stator configurations guarantee a wide range of applications. Reproducible operations due to constant speed even with changes in viscosities.