Abstract：Roller’s eccentricity is an important factor to impact the quality of highprecisionplates, through analyzing and calculating the eccentricity signal of eightroll cold mill, A compensateeccentricity controlling method is got. Through sampling the data of the rolling force from the fixedpoints of the roller’s circle, the eccentricity signal is indirectly abtained, then the eccentricity signal is changed into electronic signal of the adjusteccentricity hydraulic structure to compensate the impact of the roller’s eccentricity. After the compensation, the thickness’ precision of the rolling output can be improved greatly.
