■ 用途： ■ Used for optical fiber cable or cable core strengthening core of constant tension pay-off, as the whole production line supporting parts. ■ Main technical parameters: ■ Tension wheel diameter: Φ 800 mm (double) ■ Tension control methods: magnetic powder brake control. ■ Tension control: 5 ~ 200 n (instantaneous adjustable) ■ Structure and features: ■ The device is horizontal structure. Respectively with two Φ 800 line tension of casting wheel and the driven wheel. ■ Controlled by magnetic powder brake, tension can be achieved by adjusting the current of magnetic powder brake, and instantaneous control online. ■ This device tension adjusting range is wide, stable and reliable work.