Grinding represents a process that is done on the grinding machine where the roll surface is brought into an optimal condition by fine stock removal of roll material measured in micrones (value of roughness and stock removal).

Grinding operations prevent later splashing and popping of chrome layer from the roll surface which can result as a chrome peeling. After rolling operation, rolls have to be re-ground to remove metallurgically damaged stock to limit costs where stock removal has to be sufficient to ensure roll surface quality in next rolling.



Hard chrome plating represents an electrochemical process where the surface of roll material is covered by a layer of hard chromium (Cr2O3 or Cr6+) at an effect of direct current (DC), in order to improve the main characteristics of rolls – hardness, wear resistance, abrasion, corrosion resistance and lubricity with general low coefficient of friction.

The limited usable life of work rolls in Rolling Mills is an universal and expensive issue. The cost of supplying work rolls, mill down-time and product quality are costs related to work roll life. Many approaches have been used to extend the campaign life by alternative roll materials, but chrome plating has proven to be the most effective and universally accepted method.


SRSC in daily practice of processing rolls apply special NDT testing, so-called “None Destructive Testing” testing and by the methods of penetrant testing and magnetic particle testing, which are applied by the certified engineers who owns appropriate licenses.