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VORNBÄUMEN APPLICATION PLASTIC PADDING PLASTIC COATING COMPACTION TECHNICAL NOTES V PLASTIC PADDING The plastic padding supports the strands and stabilises the rope structure. The plastic encases the lubricated steel core and thus provides double protection. On the one hand, it encloses the lubricant on the inside and, on the other hand, it simultaneously keeps humidity and dirt particles away from the core. Furthermore, the plastic padding prevents direct friction between the strands in the rope and thus also helps to prevent premature wear. In addition, the rope structure is stabilised by the layer of plastic. ADVANTAGES • Counteracts interior wire breaks • Preserves the lubrication on the steel core • Protects the core from humidity and dirt particles • Minimises friction losses • Improves shape stability • Absorbs vibrations PLASTIC COATING As an additional added value, we can coat our ropes with various common types of plastic on modern extrusion equipment. The following materials, among others, are processed: PVC, LDPE, HDPE, PP, PA 6, PA 6.12, PA 11, PA 12, PUR TPU and POM. These plastics can be laid around the rope in various processes, depending on the customer requirement and further use of the product. Hose process: Simple coating, e.g., when the end fittings are later applied to the rope. Pressure process: Very smooth, high-quality surface on the final coated product; very good connection between the coating and the rope. COMPACTION To increase the breaking force of our products without increasing the diameter of the rope, we compact the strands, the rope or both in combination. In addition to higher metal cross section and the resulting higher breaking force, compacted ropes also have smoother strand and rope surfaces. Compacted strands provide the rope with greater flexibility and minimise both friction and corrosion in the rope. In addition, they reduce the risk of negative imprints in the grooves of the rollers and improve the service life of the rope in the case of multi-layer winding. Furthermore, the rope compaction increases the pressure stability and, due to a lower tendency to indent and optimised pressure distribution, again improves the properties of the rope for winding in multiple layers. ADVANTAGES • Increases the metallic cross section and the breaking forces • Increases the surface contact between individual wires • Achieves a smoother rope surface • Improves the contact ratio between the rope and the rope groove • Reduces the indenting of adjacent rope strands • Improves the structure stability in the case of multi-layer windings Plastic padding compacted non-compacted Semi-process: Smoother surface than with the hose process but, depending on the rope construction, easier to strip than a coating in the pressure process. By adding colour granules, almost any colour setting is possible. Furthermore, the technical properties of the coating, e.g., friction values, can also be positively influenced with the appropriate additives. Here too we will gladly place our know- how at your disposal.