CNC plastic parts refer to precision components machined from plastic materials via Computer Numerical Control (CNC) machining technology. This process uses pre-programmed computer software to control the movement of cutting tools, enabling high-precision, repeatable shaping of plastic workpieces.

Compared with injection molding, CNC machining eliminates mold costs and lead times; compared with 3D printing, it delivers higher mechanical strength and dimensional accuracy, making it a preferred solution for high-performance plastic component manufacturing.