Wohler - Model RWA 250 -Ring Rolling Machine

The metal band is fed by two driven profile rolls through an adjustable band guide. The diameter of the U- or V-shaped profile can be adjusted accordingly via hand wheel. The ready profiled and wound spiral is cut off in single segments. A transfer system places the spiral on the holding core, bringing it properly aligned into operating position. The process is started, the ring is clamped and calibrated to the nominal diameter on four points by the hydraulic cylinders.