QPQ The Drilex standard even-thickness rotor protection is the QPQ Nitriding Process. It is an economical solution to protect rotors in light to medium duty applications. It has both corrosion and wear resistance and can be performed on an alloy steel substrate. Unlike chrome plating, the QPQ nitriding process can be easily repeated to repair worn areas without the need to strip and re-coat the rotor.
CHX The Drilex CHX coating is a direct replacement for chrome. Unlike chrome, it is applied with an even thickness to minimize rotor profile distortion. This coating offers good performance and life in most types of light to medium duty applications.
XR3 The Drilex Extreme Rotor Coating (XR3) is an even-thickness, tungsten carbide coating suitable for use in medium to severe applications. XR3 offers outstanding wear protection and is excellent for use in high chloride applications. Additionally, this type of coating performs very well in pneumatic applications with very little lubrication. With a coefficient of friction less than typical chrome plating, XR3 can significantly extend stator life over other types of coatings. The XR3 coating is an excellent heavy duty coating that does not require a stainless steel substrate.