The roll grinding process is a special form of external cylindrical grinding between centres; the only difference being that the rolls being machined have much larger dimensions than conventional workpieces.
The rolls are subjected to continuous wear in both hot and cold rolling mills and must be replaced and reworked at regular intervals.
Focus on the restoration of a precisely defined surface
The focus of the rolls used for cold rolling mills is on the restoration of a precisely defined surface (structure and/or finish).
Longest possible tool life of the grinding wheels with high, economically efficient material removal rates
In contrast, the restoration grinding process for the hot rolling mill is predominantly concerned with the longest possible tool life of the grinding wheels with high, economically efficient material removal rates.