1. According to the blade mixing structure, it is divided into flat blade, oblique (folded) blade, curved blade, and helical blade agitator.Both paddle and turbine agitators have flat and inclined blade structures; the propeller, screw and ribbon blades are helical blade structures.According to the installation requirements, it can be divided into integral type and split type, which is convenient to directly fix the agitator on the agitating shaft without removing other parts such as the coupling.

2. According to the purpose of the agitator, it is divided into agitator for low-viscosity fluid and agitator for high-viscosity fluid.The agitators used for low-viscosity fluids include: propeller type, paddle type, open turbine type, disc turbine type, Brumakin type, plate and frame paddle type, three-blade rear-end type, etc.The agitators used for high-viscosity fluids include: anchor type, frame type, sawtooth disc type, propeller type, ribbon type, etc.

3. According to the fluid flow pattern, it is divided into axial flow agitator and radial flow agitator.When some agitators are in operation, the fluid produces axial flow and radial flow is called mixed flow type agitator.The propeller agitator is the representative of the axial flow type, the flat blade disc turbine agitator is the representative of the radial flow type, and the oblique blade turbine agitator is the representative of the mixed flow type.