These roll calliper gauges are based on the "Trotter", or scanning micrometer gauges familiar to the paper, aluminium and steel industries throughout the world for controlling the quality of roll re-grinding.
They offer a quick, accurate and operator- insensitive means of roll measurement, quantifying both the camber and taper of the roll. The design permits measurements to be made right to the ends of the roll barrel.
A pre-adjustable yoke is carried within a four wheeled carriage which traverses the roll barrel length. The yoke carries the dial indicator to measure changes in roll diameter as the roll is traversed.