Is a CNC router a milling machine?

A CNC router can be considered a type of milling machine, as both CNC routers and milling machines use computer control and rotary cutting tools to remove material from a workpiece. However, there are significant differences between the two in terms of construction, materials they can handle, and their typical applications.

CNC routers are designed primarily for cutting, shaping, and engraving softer materials such as wood, plastics, foam, and non-ferrous metals like aluminum and brass. They have lighter frames, less powerful spindles, and generally higher spindle speeds compared to CNC milling machines, making them well-suited for woodworking, sign making, and prototyping applications.

CNC milling machines, on the other hand, are more robust, with heavy, rigid frames and powerful spindles that can handle a wider range of materials, including harder metals like steel, stainless steel, and titanium. They are built to withstand the higher cutting forces and provide greater precision, making them suitable for producing complex parts, molds, and dies across various industries, including aerospace, automotive, and medical.

In summary, while a CNC router can be considered a type of milling machine, it is important to recognize the differences between the two in terms of their construction, capabilities, and applications. CNC routers are best suited for working with softer materials and less demanding tasks, while CNC milling machines are more versatile and capable of handling harder materials with higher precision.