FTD300B Tension device https://www.xizi-ec.com/FTD300B-Tension-device.html Type：FTD300B Sheave diameter Фd(mm)：Ф200、Ф240 Rope diameter(mm)：Ф6、Ф6.3、Ф8 Adjustable scope of L(mm)：220±40、425±40 Tension force(N)：300、450 Guide rail type：T75、T89、T90、T114、T125、T127、T140-1/B Eight type: Barite、cast iron Structure form:Swing rod Brand: Forvorda