Key optical fiber manufacturing equipment includes drawing towers for creating the fiber, coloring and buffering lines for protection and identification, stranding machines (like SZ stranding lines) to assemble the cable core, and jacketing lines to apply the final. Key optical fiber manufacturing equipment includes drawing towers for creating the fiber, coloring and buffering lines for protection and identification, stranding machines (like SZ stranding lines) to assemble the cable core, and jacketing lines to apply the final. Key optical fiber manufacturing equipment includes drawing towers for creating the fiber, coloring and buffering lines for protection and identification, stranding machines (like SZ stranding lines) to assemble the cable core, and jacketing lines to apply the final protective sheath. Comprehensive. Nextrom is the leading global supplier of production technologies for optical fibers and fiber optic cables. As with preform processing, specialty fibers present the fiber manufacturer with many requirements not encountered when drawing standard. Whether you are looking for pay-offs and take-ups for electrical cables and optical fibers or machines for insulation and extrusion, this is the perfect place for you. There are generally two main types of fiber drawing machines: continuous and spool fiber drawing machines.