WL1500 precision doubling machine is a kind of machine designed and developed by our company on the basis of the advanced technology of domestic and foreign doubling machines. The machine can combine two or three yarns into one yarn and wind it into a cylindrical bobbin. The machine is characterized by fast winding speed, all controlled by servo motor, easy maintenance. lt is suitable for cotton, wool, linen, chemical fiber and blended yarns, especially the ply winding of roving.