This disperser is a small batch pilot disperser, which has the advantages of small size, low noise, no commutation interference, no carbon brush mechanical wear, etc. The digital display directly shows the spindle speed, and is equipped with a dispersing impeller. It can meet the different experimental needs of the laboratory, and can calculate the line speed of stirring and dispersing according to the displayed spindle speed and the relationship between the viscosity of the material and the chemical reaction rate, and provide accurate data for mass production.