Chrome plating consists of applying a chrome coating to the material to create a hard, rust-free layer. Based on the requirements, we may carry out two types of chromium-plating: Flash (a few hundredths of thickness) or hard (up to two tenths of thickness).
Nickel plating, similar to chrome-plating, creates a protective layer of about 1 cent of nickel on the material and is best suited for “salty” environments where the risk of oxidation is higher, such as for example in the case of cooling chambers.
Copper plating is a specific treatment for rotary machines that require a rotogravure incision of an element that is repeated every time during the printing phase. In this case, the chrome plating is carried out first, then the copper plating and finally the engraving.
Zinc-plating consists of a layer of zinc to protect the rollers used for wood processing. This is a less accurate treatment than chrome plating and is more cost-effective.
Nitriding is a chemical process consisting in the deposition of nitrites which, by binding to the material, create a hard layer on it. The result is the same as quenching, but in this case, it is a chemical reaction.
Anodization consists in the formation of a thin layer of oxide on the surface of the material, making it more resistant and lasting longer over time. The process is carried out by means of an electrochemical principle following the immersion of the roller in a particular dip.
Lapping is a mechanical process that is carried out to lower the roughness of the roller and thus polish its surface.