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Unbalanced rewinding hardness is a common hidden quality problem for industrial roll paper. Affected by changing rewinding tension, uneven fiber density, edge pressure difference and residual web stress, finished paper rolls often have inconsistent inner and outer hardness, hard core soft edge, loose outer layer and concave roll surface. Unqualified roll hardness will cause roll deformation in stacked storage, layer slipping during customer unwinding, intermittent paper breakage and uneven paper feeding. For label roll paper, thermal paper and packaging roll paper, unstable roll hardness seriously affects the operation stability of downstream high-speed labeling and printing equipment. Manual tension adjustment can only improve local winding effect, cannot realize gradient balanced hardness from core to outer layer, and highly relies on operator experience. Improper adjustment will also cause paper inner-layer compression damage and hidden cracking. Shandong Ludao Energy Technology Co., Ltd. provides full-section rewinding hardness optimization solutions. By matching adaptive tension auxiliaries, balancing cross-direction compression force, and releasing internal winding stress, we realize uniform hardness of the whole paper roll. The treated paper roll has neat end face, stable unwinding performance, no layer dislocation and roll deformation, improves customer processing efficiency, and enhances batch roll product quality consistency.