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Halogen Free PUR

Technical Department
on12/03/2026

Полиуретановая (PUR) оболочка кабеля для спредера: 44G2.5 PUR — характеристики, конструкция, цена для кранов STS и RTG

Complete engineering guide to PUR-sheathed control cables for container spreaders on STS and RTG port cranes: why PUR exceeds traditional chloroprene rubber (CR/Neoprene) by 3–4× in abrasion and cut resistance; reference specification 44G2.5 mm² PUR — OD 30.5–34.0 mm, weight ~1,550–1,700 kg/km, copper index ~1,056 kg/km, current 26 A, voltage 300/500 V (up to 0.6/1 kV), tensile 2,500–5,000+ N, hoist speed ≤160 m/min, temp -40/+80°C; construction: bare copper class 5/6, TPE core insulation, Kevlar/aramid central strain relief core, PUR outer sheath; Basket Reeling and vertical drum technology; configurations: 12G, 24G, 44G, 52G, 61G; pricing: Prysmian vs TKD Trommelflex vs Lapp vs Tratos vs Feichun FC-SPR (45–60% savings); 5-year TCO calculator for STS crane (4 spreaders). Bromma, Stinis, ZPMC compatible.
26 Min Read
Scrap metal recycling yards represent one of the most mechanically punishing environments for industrial electrical cables. Unlike controlled manufacturing facilities or even mining operations where equipment operates within defined parameters and spaces, scrap yards combine continuous mechanical abuse, unpredictable sharp debris, contamination with oils and cutting fluids, and the psychological pressure of near-zero downtime expectations. An electromagnet suspended from a reeling cable must lift payloads of 20 to 40 metric tons repeatedly throughout the day, while the cable itself is dragged across jagged metal shards, torn aluminum siding, concrete floors embedded with sharp steel fragments, and rusted edge conditions that would immediately puncture or notch a conventional rubber sheath. When a notch forms on a neoprene (CR) cable—which happens within weeks in aggressive scrap environments—the material's inherent brittleness means that continued mechanical flexing and abrasion at that point of weakness leads to catastrophic tearing and complete cable failure. Polyurethane (PUR) cables like LAPP ÖLFLEX® CRANE PUR were specifically engineered to resist this exact failure mode through fundamentally different material physics.
Technical Department
on26/02/2026

LAPP ÖLFLEX® CRANE PUR vs. Neoprene (CR): Is Polyurethane Really Superior for Scrap Yard Lifting Magnet Cables?

Scrap metal recycling yards represent one of the most mechanically punishing environments for industrial electrical cables. Unlike controlled manufacturing facilities or even mining operations where equipment operates within defined parameters and spaces, scrap yards combine continuous mechanical abuse, unpredictable sharp debris, contamination with oils and cutting fluids, and the psychological pressure of near-zero downtime expectations. An electromagnet suspended from a reeling cable must lift payloads of 20 to 40 metric tons repeatedly throughout the day, while the cable itself is dragged across jagged metal shards, torn aluminum siding, concrete floors embedded with sharp steel fragments, and rusted edge conditions that would immediately puncture or notch a conventional rubber sheath. When a notch forms on a neoprene (CR) cable—which happens within weeks in aggressive scrap environments—the material’s inherent brittleness means that continued mechanical flexing and abrasion at that point of weakness leads to catastrophic tearing and complete cable failure. Polyurethane (PUR) cables like LAPP ÖLFLEX® CRANE PUR were specifically engineered to resist this exact failure mode through fundamentally different material physics.