CL-2D prewound bobbin winders are specially designed to produce small bobbins for embroidery machines, it is applicable for different counts of yarn, such as 40/2, 60/2, 75/2of cotton thread, polyester yarn, high stretch yarn and mercerized yarn. It is also equipped with length counter and tension force controller device with good features of high reliability, low noise, easy-operation and nice pattern of bobbins. It is the advisable choice for most large & medium garments factory, embroidery factory and thread factory.