CNC grinder machine is a machine tool grinding the surface through CNC technology. Most of the mills are grinding using high-speed rotating grinding wheels, and a few using other abrasive tools and free abrasive. CNC grinder machine can process materials with high hardness, such as hardened steel and hard alloy; it can also process brittle materials, such as glass and granite. The grinder can make high precision and small surface roughness, and can also make high efficiency grinding, such as strong grinding.

CNC grinder machine is divided into CNC flat grinder, CNC unintentional grinder, CNC inner and outer round grinder, CNC vertical universal grinder, CNC coordinate grinder, CNC forming grinder, etc.