自1977年中国第一台斗容量最大、具有国际70年代水平的WY160全液压挖掘机在长江挖掘机厂试制成功以来，“长挖人”以顽强的意志和不断进取、开拓创新的精神，依靠科技，使产品品种不断增加，产品档次不断提高，应用范围不断扩大。目前，长挖厂的产品已由机械式低档次单一品种， Since the successful trial production of the WY160 full hydraulic excavator with the largest bucket capacity in China in the 1970s in the Yangtze River excavator factory in 1977, “long digging people” has relied on the tenacious will, continuous improvement, and pioneering spirit. With science and technology, the variety of products continues to increase, product quality continues to increase, and the scope of application continues to expand. At present, the products of the long-digging plant have been manufactured from a single type of mechanical low grade.