Developed for producing a wide range of decorative yarn structures, the yarn twisting machine uses controlled twisting and overfeed processes. It can produce different types of fancy yarn such as knot yarn, wave yarn, loop yarn, and slub yarn.

HKV151B supports various raw materials including cotton, wool, linen, and synthetic fibers. It adopts a PLC control system that simplifies operation and allows operators to switch between different fancy yarn processes with minimal adjustment. A quick knotting device and a lower false-twist spindle are also included to support flexible yarn formation during production.

The winding system forms yarn packages in a single step, helping maintain efficient production. Fancy yarn produced by HKV151B is commonly used in woven and knitted textiles where decorative yarn textures are required.