Optical cables mainly consist of two parts: cable core and protective layer. The cable core is a component integrated together by a certain combination of fiber optic units, filling units. Reinforcement components, water blocking materials. And tie yarns (and if necessary, a wrapping layer). A cable forming machine is a device that achieves this integrated function, obtaining a structurally stable and compliant cable core through cable forming. The optical unit and other cable core components are twisted using a spiral twist method. Which with alternating positive and negative directions, abbreviated as SZ Strand.
Optical fiber sz stranding line is suitable for “SZ” stranded cabling with a fiber loose tube diameter less than 3.5 mm. Its main feature is the use of double concentric high-speed binding yarn heads and high-speed “SZ” stranding heads. Which can significantly increase the speed and productivity.