The following are some of the most widely used plastic materials for CNC machining.

Nylon

Nylon is wear-resistant, heat-resistant, chemical-resistant, flame-retardant, easy to process, and is a good material for replacing steel, iron, copper and other metals with plastics.CNC machining of nylon's most common applications include insulators, bearings, and for injection molds.

PEEK

Another plastic with excellent machinability is PEEK, which has excellent stability and impact resistance. It is commonly used to make compressor valve plates, piston rings, seals, etc. It can also be machined into the inner/outer parts of airplanes and many parts of rocket motors.PEEK is the closest material to human bones, and can be used to make human bones instead of metal.

ABS plastic

It has excellent impact strength, good dimensional stability, good dyeing, molding and machining, high mechanical strength, high stiffness, low water absorption, good corrosion resistance, simple connection, non-toxic, tasteless, with excellent chemical properties and electrical insulation properties; can be heat-resistant and not deformed, or a hard, not easy to scratch, not easy to deform the material.