MKS8140 high speed CNC Crankshaft Grinder, MKS8240 high-speed NC crankshaft grinding machine adopts imported computer and AC servo drive control system of axes motion, can be equipped with automatic measurement of radial and axial line, wheel automatic balancing system, eliminating idle and collision prevention device, and a grating with a closed-loop control. Servo motor with the knife with the knife. Connecting rod grinding machine with automatic indexing, automatic positioning, automatic clamping workpiece, loose, head and tail synchronous linkage functions. The grinding wheel is made of diamond roller dressing or diamond dressing, which has the function of grinding wheel wear compensation and automatic dressing compensation.