... . Winding: Variable frequency motor tension control, Max Dia. of Cloth roll 1200mm9. Weft storage: Mechanical length measurement( ... -off, ensures stable tension of warp, to enhance the quality of loomage.3. Weft insertion, adopt new ... feeder can realize fixed-length storage of PE, PP, Polypropylene filament, Polyester silk by decreasing the weft storage tension. 9. Mechanical length measurement weft ...