Jingzhou Yunlin Machinery Manufacturing Co., Ltd. introduced Winona Van Noman CG500 crankshaft grinder from the United States. The crankshaft grinder has high processing accuracy and a processing range of 0,1050 mm x 4500 mm. The precise mechanical structure and PLC control system of the crankshaft grinder are the concentricity of the crankshaft spindle, the parallelism of the crankshaft to the spindle, and the eccentricity, angle and size of the crankshaft can meet the requirements of high precision crankshaft grinding.