用于长或棒状金属制品的矫直装置，包括上辊单元和下辊单元，其中上辊单元是可移动的，并且可以至少在将所述产品的通道间隙设定为 其中液压安全/控制装置与下辊单元相关联，并且当在所述下辊单元上检测到高于预定值的过载状况时，包括选择性屈服型的单效液压致动器。

In the upper roll unit 12 and lower roll unit 14 to a longer length having or rod shape of the metallic product (18) deformation correcting device, wherein the upper roll unit (12) is movable, and (18 passage gap 17 in) may be located in stage (step) at the time is set to a predetermined value to a minimum vertical. Hydraulic safety / controlling device is connected to the lower roll unit 14, can be a time is a predetermined value or more overload condition value is detected in the lower roll unit 14 (yielding) optionally creating type single utility hydraulic actuator in which and a (19, 119).