Campbell Grinder Company’s horizontal Model CRG-4000 (Calender Roll Grinder) described in this page is designed to be a compact, heavy-duty grinder specialized for calender roll grinding, including helical grooving, and sinusoidal grooving. Campbell Grinder designed this machine to cylindrical grind, profile grind, specialized groove grind and measure OD related to calender roll features on several assemblies. The machine is be capable of real-time OD, crown profile and roundness (TIR) measurements off-line. It can dress and true the grind wheel in-cycle. The machine’s internal environment is controlled for optimum grinding conditions.