纤维芯是钢丝绳中最常见的绳芯类型，其 功能在于提供支撑性、柔韧性和润滑性。南通灵达网绳有限公司作为区域 性企业，其产品体系覆盖了纤维芯的三大主流分支：
Fiber core is the most common type of core in steel wire ropes, which provides support, flexibility, and lubrication. As a regional enterprise, Nantong Lingda Mesh Rope Co., Ltd.'s product system covers the three mainstream branches of fiber cores:
天然纤维芯
Natural fiber core
以黄麻、剑麻为 的天然纤维芯，凭借其 度、高韧性及成本优势，广泛应用于中大型钢丝绳生产。南通灵达通过自主研发的捻制工艺，将黄麻纤维的纱支精度提升至2.40支至1.08支区间，确保绳芯直径均匀度误差控制在±0.05mm以内。剑麻芯则专为直径20mm以上重载钢丝绳设计，其单纱捻度达14捻/10公分， 增强抗挤压能力。
Natural fiber cores made of jute and sisal are widely used in the production of medium and large steel wire ropes due to their strength, high toughness, and cost advantages. Nantong Lingda has improved the yarn count accuracy of jute fiber to the range of 2.40 to 1.08 through its independently developed twisting process, ensuring that the diameter uniformity error of the rope core is controlled within ± 0.05mm. The sisal core is specifically designed for heavy-duty steel wire ropes with a diameter of 20mm or more, with a single yarn twist of 14 twists/10cm, enhancing its resistance to compression.
合成纤维芯
Synthetic fiber core
针对特殊工况需求，南通企业开发了聚丙烯（PP芯）等合成纤维绳芯。此类材料通过分子链改性技术，兼具耐酸碱腐蚀、抗老化等特性，适用于海洋工程、盐井作业等极端环境。实验数据显示，PP芯在盐雾试验中可保持10年以上的结构稳定性，且浸油后润滑效果提升40%。
In response to special working conditions, Nantong enterprises have developed synthetic fiber rope cores such as polypropylene (PP core). Through molecular chain modification technology, this kind of material has the characteristics of acid and alkali corrosion resistance, aging resistance, etc., and is suitable for extreme environments such as marine engineering, salt well operation, etc. Experimental data shows that PP cores can maintain structural stability for more than 10 years in salt spray tests, and the lubrication effect is improved by 40% after immersion in oil.
棉纤维芯
Cotton fiber core
棉芯虽已逐渐被替代，但在航空、精密仪器等对柔韧性要求极高的领域仍占有一席之地。南通灵达通过与纺织企业合作，定制化生产支数达60支以上的高支棉芯，满足细直径钢丝绳（如直径≤3mm）的特殊需求。
Although cotton cores have gradually been replaced, they still occupy a place in fields such as aviation and precision instruments that require high flexibility. Nantong Lingda collaborates with textile enterprises to customize the production of high count cotton cores with a count of 60 or more, meeting the special needs of small-diameter steel wire ropes (such as diameter ≤ 3mm).