Liquid nitriding is a subcritical surface enhancement process with one of the longest track records of success of any case hardening technology.
PVD coatings involve the deposition of thin (2-10 microns; 0.0001" – 0.0004") films on the surface of tools and components.
HEF bushings are recognized worldwide for their excellent frictional and anti-seizure properties, and ability to withstand high loads.
Liquid Nitriding is an excellent replacement for hard-chrome & nickel plating:
Cams
Swash Plates
Mechanical Seals
Compressor Components
Valve Components