Guide vane is an important part of general parts of hydraulic turbine. According to different types of units, guide vanes can be divided into tubular, axial, mixed flow and pumped storage. As a processing base of HA's guide vane, our factory has many years of experience in guide vane processing. We have provided a complete set of guide vane processing for foreign power stations such as Congo inbulu, Myanmar Shuijin, shangbanglang, and domestic power stations such as Goupitan, Guangzhao, Shankou, Three Gorges, Zhouba, Kangyang, etc. The three-axis CNC gantry milling machine can accurately process the airfoil of the guide vane body, which avoids the existence of wave shape of the airfoil of the guide vane body when directly grinding. The whirlwind milling machine can process the upper and lower shaft diameters at the same time, so as to ensure the coaxiality of the shaft diameters on both sides, and avoid the problem of unqualified coaxiality caused by uneven counterweight of the lathe.