PVD coating machine is special for tools to get a hard coating, such as TiN,CrN,TiCN etc. PVD coating machine is an ion coating machine of efficiency, harmless and pollution-free. It has the features of fast deposition rate , great ionization rate, big ion energy,easy operation, low cost, large productive capacity, etc.Characteristic: The principle of the electric arc is intergrating cold cathode ...