Prewound bobbin winder is designed, developed and manufactured by our company which brings a new revolution to the previous bobbin winder and is appliable to embroidery factory, bags factory, toys factory, leather factory, shoes and hats factory, garment factory and so on. It is very easy to operate and can make 8 pieces of prewound bobbin once and 6,000 pieces one day which are enough for the 20 sets 920 embroidery machine. So higher efficiency, less worker's salary and less company's cost. All kinds of yarns such as 30/1, 40/2, 50/2, 60/2, 75D/2 and so on is suitable for prewound bobbin winder and different sizes of prewound bobbin which are two or three times longer can be shaped with beautiful patterns and the same tension by measuring tension control apparatus setting.Please feel free to contact with us!