Twister Machine for Spun Yarn is featured with sheet metal frame structure with powder coating. Twister Machine has a drive motor pulley, directly driven with nylon sandwich flat belts to ensure high power transmission efficiency. Twister Machine is facilitated with a tension device capsule tensioner and convenient adjustment of tension device, suitable for all kinds of yarns. Twister Machine for Spun Yarn is offered with overfeed covers to avoid accident.