... feeding the bobbins and automatic cutting thread when fulfilled...2 With automatic alarm when the bobbin funnel empty and ... adjusting device.Specification of the bobbin winder:1 Spindle: 1.2 Bobbins: Model M & L.3 Motor: 440V/380V/ ... Winding Of Yarn Like: Different yarn, as 40/2, 60/2, 75/2 of cotton yarn, polyester yarn, high stretch yarn ... G.W.22kg. Automatic bobbin winders DM-2A for sewing machine