The iron ore dressing plant in Shanxi has a high ore hardness, the industrial agitator wear is large in the mixing process before flotation, and the equipment replacement is frequent, which increase a lot of cost. The plant has been struggling to find a good wear-resisting agitation machinery equipment. After consultation, the client purchased Xinhai agitation tank. The cylinder of Xinhai agitation tank is lining with wear-resisting rubber, greatly extending its service life, and saved the cost for the plant. Nowadays, Xinhai agitation tank has been operating in the plant's production line for last five years and it is still applied to production line.