The three-narrow-blade axial-flow agitator is a high-performance axial-flow agitator with a wide range of applications, with good discharge performance and low shear force. Convective circulation at low speed and turbulent dispersion at high speed. Larger blade inclination and blade twist can enable the agitator to achieve a higher flow field in transitional flow and even turbulent flow, and its drainage capacity is higher than that of traditional A130. Propulsion agitator increased by 30%. Suitable for low viscosity mixing, dissolving, solid suspension, heat transfer, reaction, mass transfer, extraction, crystallization operations