Sifra International, applies the advanced research for special projects, such coating on rollers and wheels, and deposit of one or more linings of material of various chemical composition on them. The purpose of the coating is to increase the physical and mechanical characteristics of the treated piece. In addition, coating ensures to avoid any geometric alteration of the part to be treated. It’s possible to lay the most varied alloy coatings through several technologies in particular metal alloys (Hastelloy, stellites), carbides of tungsten, electrolytic chromium coatings, electroplated nickel- chromium, ceramics with chromium oxides, titanium or zirconium, the metallization (thermo spray – for surfacing of alloys of bronze, copper, aluminum, molybdenum), APS (air plasma spraying – plasma process for ceramic coatings, oxides of chromium, aluminum, titanium and carbides). Roller coating may be used in cases where the anti-wear and anti-corrosion of any part are a fundamental prerogative.