ESecond, the machine main components The machine consists of corrective unwinding institutions, cutting structure, the rolling bodies, transmission and electrical control. Agencies main configuration and specifications Agencies main configuration and specifications (A) unwinding institutions The device has a manual aspect of offset can be eliminated due to the tension of raw material at both ends arising from Bohou or paper core non-circularity different and wrinkled. Unwinding tension to the high linear magnetic powder brake actuator output torque balancing the tension fluctuation can be reduced to a minimum.