The second generation automatic constant tension hanging cited yarn spiridles (Model: DDK-18ACT), solved over the years in the course of the existence of the ingot hanging large, medium and snhall roving unwinding tension inconsistencies, unexpectedly easy to avoid roving elongation, fall, thereby improving a hard headspinning, spinning yarn defect-prone details, roving fall easily blocked bell and other issues because of the high spindle difference suspended spindle caused a significant improvement in the yarn indicators.