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What are the differences between steel wire ropes with steel cores and those with hemp cores?
2025-11-20
This insight is very acute. The core differences between steel core and hemp core steel wire ropes are concentrated in three dimensions: "structural materials, performance emphasis, and applicable scenarios". The 1.specific differences are as follows:
Core structure and materials Steel core wire rope: The core is a steel core (mostly independent steel strands or wire ropes), and the overall material is mainly steel. Hemp core steel wire rope: The core is made of natural fibers (such as sisal, jute) or synthetic fibers (such as polypropylene), and the core does not have the strength of steel. 2. Key performance differences Strength and load-bearing capacity: Steel core wire ropes have high strength and large breaking tensile force, capable of withstanding heavy loads and impact loads. The strength of the hemp core steel wire rope is relatively low, and its load-bearing capacity is inferior to that of the steel core. Flexibility: The hemp core steel wire rope has good flexibility, is easy to bend and wind, and is more convenient to operate. The steel core has poor flexibility and is difficult to bend, which imposes higher requirements on the curvature of pulleys and drums. Wear resistance and service life: The steel core has strong wear resistance and compression resistance, and has a longer service life under harsh working conditions. The hemp core is prone to wear and tear, moisture absorption and mold growth. After long-term use, the core is likely to be damaged, affecting the overall lifespan. Lubrication and buffering: The hemp core can store grease and continuously provide lubrication between the wires and strands of the steel wire rope. The steel core has no grease storage function and requires additional frequent lubrication. Moreover, its buffering and shock absorption effect is relatively weak. 3. Differences in applicable scenarios Steel core wire rope: Suitable for heavy-load and high-stress scenarios, such as the main hoisting mechanism of cranes, mine hoisting, port handling, and traction of large equipment, etc. Hemp core steel wire rope: Suitable for medium and light load scenarios that require frequent bending, such as elevator traction, small cranes, agricultural machinery, and daily binding, etc. |
