Uses: Used to wrap various fine yarns and adjust the tightness of the yarns. Machine features: The most advanced frequency conversion speed regulation is adopted to make the machine run more constant and smooth. The electronic length counter can set the length according to the needs. The length is completed automatically shutdown, and there is a warning light prompt, so the operation is simple and convenient. The precision warp tension adjuster strongly guarantees the optimum tension required in the warp yarns. The adjustable yarn-passing steel buckle can be arbitrarily adjusted according to the density of warp yarns. The pneumatic device makes the loading and unloading of the pan head more convenient and quick. Relying on the friction transmission between the rubber wheel and the pan head, the friction force can be adjusted by the air pressure, so that the yarn on the pan head can meet the ideal requirements. Double-headed dual control, high efficiency, energy saving and people saving: Double-headed completely independent control of independent warp yarns does not occupy space, greatly saving various operating costs such as labor costs and space costs.