A CNC (computer numerical control) crankshaft grinding machine is a specialized piece of equipment used for precision grinding of crankshafts. It uses a CNC controller to control the grinding process, which allows for high precision and repeatability.

The machine typically consists of a workpiece spindle, a grinding wheel spindle, and a CNC controller. The workpiece spindle holds the crankshaft in place and rotates it as the grinding wheel is brought into contact with it. The grinding wheel is also controlled by the CNC controller, which allows for precise control of the grinding process.

The CNC crankshaft grinding machine can be used for a variety of grinding applications, such as grinding of journals, main bearings, and pin bearings. It can also be used for grinding of other engine components such as camshafts and connecting rods.

One of the main advantages of the CNC crankshaft grinding machine is its high precision and repeatability. The machine is able to achieve tight tolerances and produce a high-quality surface finish on the crankshaft. It also allows for easy programming and automation of the grinding process, which can increase efficiency and reduce operator workload.

CNC Crankshaft Grinding machines are used in various industries such as automotive, marine, aerospace and energy. They are also used in the manufacturing of crankshafts for diesel engines, gasoline engines, and gas turbine engines.