All adjustments are powered with commercial electric gear motors capable of +/-0.001" (0.03mm) roll position accuracy. Position feedback is achieved using absolute linear displacement transducers (LDTs) which are mounted in such a way to eliminate errors due to gearing backlash. Rafter provided design information so that customer could supply their own control package.
Included with the system was a ThermoProfilScanner (TPS) weld quality monitoring system by HKS Prozesstechnik GmbH. The head roll assembly was specifically designed to accomodate the permanent mounting of the TPS sensor on the removable faceplate.