Stirrer is mainly used to mix medium, protect material's deposit and assist material's chemical reaction in the tank.The stirring mixer is installed according to customers' requirements. Axial flow stirrers are usually adopted. It will achieve better effect than other types of stirrers when the power consumption is the same. Power consumption of a side-entry stirrer is only 1/3-2/3 that of a top-entering agitator; and its cost is only 1/4-1/3 of a top-entering stirrer. Its rotational speed is within 200r-750r/min.