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continuous flexing vertical

8 Min Read
The PRYSMIAN Cordaflex® (N)SHTÖU (SMK)-V is the most configuration-diverse vertical spreader cable without fiber optics — offering six distinct configurations that span three fundamentally different spreader architecture types. Where the (SMK)-V-S offers a single 36×2.5 configuration and the REEL XPRT offers four standard configurations, the (SMK)-V delivers six configurations including two that exist nowhere else in the Klaus Faber catalogue: a 49×1.0 signal-only variant for spreaders with dedicated power cables, and a 20×2.5+3×CAN-BUS+2×(2×2.5)C variant with integrated digital fieldbus communication and screened control pairs.
Technical Department
on03/04/2026

PRYSMIAN Cordaflex® (N)SHTÖU (SMK)-V

The PRYSMIAN Cordaflex® (N)SHTÖU (SMK)-V is the most configuration-diverse vertical spreader cable without fiber optics — offering six distinct configurations that span three fundamentally different spreader architecture types. Where the (SMK)-V-S offers a single 36×2.5 configuration and the REEL XPRT offers four standard configurations, the (SMK)-V delivers six configurations including two that exist nowhere else in the Klaus Faber catalogue: a 49×1.0 signal-only variant for spreaders with dedicated power cables, and a 20×2.5+3×CAN-BUS+2×(2×2.5)C variant with integrated digital fieldbus communication and screened control pairs.
9 Min Read
Not every STS crane needs ETFE insulation, 56 cores, or integrated fiber optics. The vast majority of the world's operational STS crane fleet — thousands of cranes at hundreds of terminals — uses a simple, proven, 36-core control cable on the spreader reel. That cable is the Cordaflex® (N)SHTOEU (SMK)-V-S: a single-configuration workhorse with basic EPR insulation that every port electrician can strip and terminate using standard tools, a 36×2.5 + protective conductor core count that covers the circuit requirements of standard (non-automated) spreaders, and a construction that shares the premium vertical-rated architecture (Class FS, aramide, PCP rubber, ±50°/m torsion) of its more exotic siblings.
Technical Department
on03/04/2026

Cordaflex® (N)SHTOEU (SMK)-V-S

Not every STS crane needs ETFE insulation, 56 cores, or integrated fiber optics. The vast majority of the world’s operational STS crane fleet — thousands of cranes at hundreds of terminals — uses a simple, proven, 36-core control cable on the spreader reel. That cable is the Cordaflex® (N)SHTOEU (SMK)-V-S: a single-configuration workhorse with basic EPR insulation that every port electrician can strip and terminate using standard tools, a 36×2.5 + protective conductor core count that covers the circuit requirements of standard (non-automated) spreaders, and a construction that shares the premium vertical-rated architecture (Class FS, aramide, PCP rubber, ±50°/m torsion) of its more exotic siblings.
9 Min Read
SPREADERFLEX REEL XPRT (N)SHTOEU is the copper-only counterpart of the Cordaflex (SMK)-V-FO — sharing the same Class FS conductors, aramide self-supporting element, PCP rubber sheath, and 240 m/min vertical reeling capability, but without integrated fiber optics. It is designed for the large installed base of STS crane spreaders that do not require fiber optic communication — spreaders using copper-only control signals, or cranes where fiber optic data is provided through a separate dedicated cable or wireless link.
Technical Department
on03/04/2026

SPREADERFLEX REEL XPRT (N)SHTOEU

SPREADERFLEX REEL XPRT (N)SHTOEU is the copper-only counterpart of the Cordaflex (SMK)-V-FO — sharing the same Class FS conductors, aramide self-supporting element, PCP rubber sheath, and 240 m/min vertical reeling capability, but without integrated fiber optics. It is designed for the large installed base of STS crane spreaders that do not require fiber optic communication — spreaders using copper-only control signals, or cranes where fiber optic data is provided through a separate dedicated cable or wireless link.
11 Min Read
3GSLTOE has been a staple in port automation for years, the XPRT designation signifies a modern evolution in the cable's outer Polyurethane (PUR) sheath and internal slip-layers. When terminal operators are pushing Megamax Ship-to-Shore (STS) cranes to their absolute maximum cycles, the cable must coil into the basket flawlessly, hour after hour, without the outer jacket generating friction, heat, or static cling.
Technical Department
on03/04/2026

SPREADERFLEX BSKT XPRT3GSLTOE

3GSLTOE has been a staple in port automation for years, the XPRT designation signifies a modern evolution in the cable’s outer Polyurethane (PUR) sheath and internal slip-layers. When terminal operators are pushing Megamax Ship-to-Shore (STS) cranes to their absolute maximum cycles, the cable must coil into the basket flawlessly, hour after hour, without the outer jacket generating friction, heat, or static cling.
Technical Department
on03/04/2026

Spreaderflex® 3GSLTOE

Spreaderflex® 3GSLTOE is the most technologically complete basket cable in the Feichun port crane portfolio—the cable that integrates every innovation developed for vertical basket festoon operation into a single, unified structure. Where the SPREADERFLEX BSKT XPRT SYSLTOE FO adds fiber optics but uses thermoplastic insulation, and the TRATOSCOILFLEX uses rubber construction but omits screening—the 3GSLTOE combines lead-ball aramid self-supporting (for wind-proof plumb drop and zero-elongation suspension), bundle stranding (for zero-twist coiling), tinned copper braid EMC screening (for VFD noise immunity), Class FS ultra-flexible conductors (for millions of basket fold cycles), EPR 3GI3 rubber insulation (for the most robust dielectric performance), and PUR outer sheath (for the widest temperature range and lowest surface friction)—all in one cable.
14 Min Read
SPREADERFLEX BSKT XPRT SYSLTOE FO is the most specialised cable in the entire port crane electrification portfolio—a 0.6/1 kV composite power and fiber optic basket festoon cable engineered by Anhui Feichun Special Cable Co., Ltd. exclusively for the vertical basket festoon systems that connect container crane spreaders to the trolley structure. No other application on Earth subjects a cable to this specific combination of mechanical stresses: the cable must hang vertically under its own weight for up to 50 metres, fold and unfold inside a guide basket as the spreader rises and descends, travel at speeds up to 160 m/min during container lift and lower cycles, and simultaneously carry up to 48 copper conductor cores for power and control alongside up to 18 optical fibers for high-speed data communication—all without tangling, twisting, kinking, or damaging the fragile glass fibers.
Technical Department
on02/04/2026

SPREADERFLEX BSKT XPRTSYSLTOE FO

SPREADERFLEX BSKT XPRT SYSLTOE FO is the most specialised cable in the entire port crane electrification portfolio—a 0.6/1 kV composite power and fiber optic basket festoon cable engineered by Anhui Feichun Special Cable Co., Ltd. exclusively for the vertical basket festoon systems that connect container crane spreaders to the trolley structure. No other application on Earth subjects a cable to this specific combination of mechanical stresses: the cable must hang vertically under its own weight for up to 50 metres, fold and unfold inside a guide basket as the spreader rises and descends, travel at speeds up to 160 m/min during container lift and lower cycles, and simultaneously carry up to 48 copper conductor cores for power and control alongside up to 18 optical fibers for high-speed data communication—all without tangling, twisting, kinking, or damaging the fragile glass fibers.
26 Min Read
Complete Technical Guide to Specialized Vertical Reeling Cable Systems for Container Spreaders on Ship-to-Shore (STS) and Rubber-Tired Gantry (RTG) Cranes. Deep Analysis of Aramid (Kevlar) Core Strain-Relief Engineering, Gravity Suspension Load Physics, Dynamic Tension Management, Multi-Core Control Cable Architecture (24G2.5 through 48G2.5), Twist-Lock Sensor Integration, Flipper Control Circuits, High-Definition Camera Feed Transmission. VDE 0250-814 Standards, Vertical Reeling System Physics, Acceleration/Deceleration Shock Analysis, Material Selection (Rubber vs. Polyurethane), Real-World Deployment Scenarios, and Factory-Direct Procurement Strategy for Spreader Cable Replacement in High-Utilization Port Terminals.
Technical Department
on18/03/2026

Spreader Cable Reel Engineering Guide: Vertical Reeling Systems, Aramid Core Strain Relief, and Gravity Stress Management for Modern STS and RTG Container Cranes

Complete Technical Guide to Specialized Vertical Reeling Cable Systems for Container Spreaders on Ship-to-Shore (STS) and Rubber-Tired Gantry (RTG) Cranes. Deep Analysis of Aramid (Kevlar) Core Strain-Relief Engineering, Gravity Suspension Load Physics, Dynamic Tension Management, Multi-Core Control Cable Architecture (24G2.5 through 48G2.5), Twist-Lock Sensor Integration, Flipper Control Circuits, High-Definition Camera Feed Transmission. VDE 0250-814 Standards, Vertical Reeling System Physics, Acceleration/Deceleration Shock Analysis, Material Selection (Rubber vs. Polyurethane), Real-World Deployment Scenarios, and Factory-Direct Procurement Strategy for Spreader Cable Replacement in High-Utilization Port Terminals.
13 Min Read
Complete technical analysis of Prysmian CORDAFLEX SMK-V 0.6/1 kV low-voltage vertical reeling cable for STS cranes, spreader bar systems, container handlers: central Kevlar aramid core absorbs 20+ kN tensile load preventing copper core elongation under gravity, anti-torsion polyester braid prevents helical collapse during 240 m/min vertical operation, yellow neoprene PROTOFIRM sheath resists marine UV/ozone/salt-spray, Class FS tinned copper conductors maintain flexibility at -35°C. FeiChun NSHTOU-V — VDE 0250-814 certified direct equivalent with triple-extrusion process, 30–35% cost savings, 45–60 day lead time. Replaces CORDAFLEX SMK-V for global port terminals under import-substitution programs without equipment recalibration.
Technical Department
on17/03/2026

CORDAFLEX SMK-V Vertical Reeling Cable Replacement: Complete Engineering Analysis and Drop-In Solution for High-Speed STS Crane Spreader Hoists, Container Handlers, and Port Electrification Systems

Complete technical analysis of Prysmian CORDAFLEX SMK-V 0.6/1 kV low-voltage vertical reeling cable for STS cranes, spreader bar systems, container handlers: central Kevlar aramid core absorbs 20+ kN tensile load preventing copper core elongation under gravity, anti-torsion polyester braid prevents helical collapse during 240 m/min vertical operation, yellow neoprene PROTOFIRM sheath resists marine UV/ozone/salt-spray, Class FS tinned copper conductors maintain flexibility at -35°C. FeiChun NSHTOU-V — VDE 0250-814 certified direct equivalent with triple-extrusion process, 30–35% cost savings, 45–60 day lead time. Replaces CORDAFLEX SMK-V for global port terminals under import-substitution programs without equipment recalibration.