HY492E/HY492F Roving Frames are the new type Roving Frame without cones, which are developed on the basis of HY492C Roving frame, and further optimize the mechanical structure, applying advanced computer control technology and inverter speed-regulation technology. With the features of high-level electromechanical integration, simple operation, high production efficiency, suitable for combed pure cotton sliver or blending, and is the best choice of making outstanding quality yarn.