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Flame retardant reel cable

20 Min Read
Full technical breakdown Lapp ÖLFLEX CRANE NSHTÖU 0.6/1 kV (max 1.2 kV): specialized motorized drum cable for cranes (gantry, bridge, portal, jib) with extreme cold capability -25°C to -40°C dynamic. NSHTÖU per VDE 0250-814: N (normalized), S (hose-type), H (special elastomer), T (trommel/drum), Ö (oil-resistant), U (reinforced). Works at spool speeds up to 120 m/min in repeated flex. Core problem: standard neoprene outers become brittle below -25°C and crack during drum bending. Arctic version uses modified elastomer compound (5GM5-Arctic) with plasticizers that don't crystallize at sub-zero, ensures -40°C operation. Configuration 4G50: tinned Cu Cl.5, special EPR 3GI3 insulation, internal anti-skewing rubber extrusion, outer Arctic-grade neoprene or PUR. OD ~18–22 mm, weight ~0.85–1.1 kg/m, current ~250–280 A. Alternatives: (1) FeiChun NSHTÖU-Cold — Lapp equivalent with Arctic compound, -40°C dynamic, better price; (2) FeiChun PUR Reeling Cable — PUR sheath, -50°C capable, 15–20% lighter, preferred for Arctic/Siberia. Russian GOST alternatives (КГРПУ, КГЭЖ-ХЛ) require TU modification for drum application.
Technical Department
on16/03/2026

ÖLFLEX CRANE NSHTÖU Морозостойкий кабель для крановых барабанов: инженерия холода — FeiChun NSHTÖU-Cold и PUR Reeling Cable, аналог Lapp

Full technical breakdown Lapp ÖLFLEX CRANE NSHTÖU 0.6/1 kV (max 1.2 kV): specialized motorized drum cable for cranes (gantry, bridge, portal, jib) with extreme cold capability -25°C to -40°C dynamic. NSHTÖU per VDE 0250-814: N (normalized), S (hose-type), H (special elastomer), T (trommel/drum), Ö (oil-resistant), U (reinforced). Works at spool speeds up to 120 m/min in repeated flex. Core problem: standard neoprene outers become brittle below -25°C and crack during drum bending. Arctic version uses modified elastomer compound (5GM5-Arctic) with plasticizers that don’t crystallize at sub-zero, ensures -40°C operation. Configuration 4G50: tinned Cu Cl.5, special EPR 3GI3 insulation, internal anti-skewing rubber extrusion, outer Arctic-grade neoprene or PUR. OD ~18–22 mm, weight ~0.85–1.1 kg/m, current ~250–280 A. Alternatives: (1) FeiChun NSHTÖU-Cold — Lapp equivalent with Arctic compound, -40°C dynamic, better price; (2) FeiChun PUR Reeling Cable — PUR sheath, -50°C capable, 15–20% lighter, preferred for Arctic/Siberia. Russian GOST alternatives (КГРПУ, КГЭЖ-ХЛ) require TU modification for drum application.
7 Min Read
Full technical breakdown Prysmian (Draka) CORDAFLEX SMK series — the "gold standard" for motorized cable reels on portal cranes, stacker-reclaimers, and excavators. Marking (N)TSCGEWÖU, cross-section 3×150+3×25/3, voltage 6/10 kV (max operating 7.2/12 kV). Weight 6.5+ tons/km, OD 58–64 mm, current rating ~425 A (30°C open air), short-circuit ~21.4 kA (1s). Key SMK distinction: built-in anti-torsion guard — reinforced inner sheath with high-strength synthetic braid (aramid/Kevlar) compensating torque from guide rollers and multi-layer winding at speeds up to 120–160 m/min. Without this, standard cables corkscrew and fail on motor drums. Construction: 3×150 mm² tinned copper class 5, split earth 3×(25/3)=3×8.33 mm², EPR insulation type 3GI3, extruded semiconducting screens, polychloroprene (5GM5) or special elastomer outer sheath. Temp -25°C to +80°C standard, Arctic to -40°C. Russian market: GOST КГЭ/КГЭ-ХЛ cables are trailing-only (no anti-torsion) and fail on motor drums. Anhui Feichun offers certified drop-in replacement FC-CORDAFLEX-SMK with integrated aramid anti-torsion braid per VDE, CCV vulcanization, and OD adaptation for existing drums and cable-layers.
Technical Department
on16/03/2026

Аналог CORDAFLEX (SMK): барабанный кабель (N)TSCGEWÖU 3×150+3×25/3 6/10kV в России — антиторсионная защита, 425 А, замена FeiChun Cable

Full technical breakdown Prysmian (Draka) CORDAFLEX SMK series — the “gold standard” for motorized cable reels on portal cranes, stacker-reclaimers, and excavators. Marking (N)TSCGEWÖU, cross-section 3×150+3×25/3, voltage 6/10 kV (max operating 7.2/12 kV). Weight 6.5+ tons/km, OD 58–64 mm, current rating ~425 A (30°C open air), short-circuit ~21.4 kA (1s). Key SMK distinction: built-in anti-torsion guard — reinforced inner sheath with high-strength synthetic braid (aramid/Kevlar) compensating torque from guide rollers and multi-layer winding at speeds up to 120–160 m/min. Without this, standard cables corkscrew and fail on motor drums. Construction: 3×150 mm² tinned copper class 5, split earth 3×(25/3)=3×8.33 mm², EPR insulation type 3GI3, extruded semiconducting screens, polychloroprene (5GM5) or special elastomer outer sheath. Temp -25°C to +80°C standard, Arctic to -40°C. Russian market: GOST КГЭ/КГЭ-ХЛ cables are trailing-only (no anti-torsion) and fail on motor drums. Anhui Feichun offers certified drop-in replacement FC-CORDAFLEX-SMK with integrated aramid anti-torsion braid per VDE, CCV vulcanization, and OD adaptation for existing drums and cable-layers.