Six Specialised Cable Types Covering Every Electrical Connection on a Modern Port Crane — From 600 V Yard Crane Spreader Baskets to 6,600 V Automated STS Crane Hybrid Power & Fibre Optic Reel Systems — All Manufactured to JIS C 3327 with Kevlar® Aramid Fibre Reinforcement Options, Steel-Stranded Conductors, and Chloroprene Rubber Sheathing for the World’s Most Demanding Maritime and Industrial Environments
Anhui Feichun Special Cable Co., Ltd. manufactures cost-effective, performance-identical equivalents to the complete WALSREEN® port crane cable family — delivered in 4–8 weeks at 40–50% of Japanese OEM pricing, with full JIS C 3327, JIS C 3315, and VDE 0250-813 compliance, comprehensive factory testing, and worldwide technical support
Every cable in the range shares a common engineering foundation: JIS C 3327 compliance for rubber-insulated machinery cables, chloroprene rubber (CR) sheathing for oil/ozone/UV resistance, EPR insulation rated to 90°C, and an ambient temperature range of −40°C to +90°C that covers every port environment on earth from arctic to tropical. Within this shared foundation, each cable type is differentiated by its reinforcement system, voltage class, conductor range, and application-specific optimisations.
WALSREEN® Complete Port Crane Cable Range
Six Specialised Cable Types Covering Every Electrical Connection on a Modern Port Crane — From 600 V Yard Crane Spreader Baskets to 6,600 V Automated STS Crane Hybrid Power & Fibre Optic Reel Systems — All Manufactured to JIS C 3327 with Kevlar® Aramid Fibre Reinforcement Options, Steel-Stranded Conductors, and Chloroprene Rubber Sheathing for the World’s Most Demanding Maritime and Industrial Environments
Anhui Feichun Special Cable Co., Ltd. manufactures cost-effective, performance-identical equivalents to the complete WALSREEN® port crane cable family — delivered in 4–8 weeks at 40–50% of Japanese OEM pricing, with full JIS C 3327, JIS C 3315, and VDE 0250-813 compliance, comprehensive factory testing, and worldwide technical support
Product Family Overview
The WALSREEN® port crane cable range is a complete family of six specialised cable types engineered to cover every electrical and data connection on modern port cranes — from the simplest yard crane spreader circuit to the most complex automated STS crane with integrated fibre optic networking. The family is divided into two series: the WS-RLIN series for motorised cable reel systems, and the WS-SPRD series for gravity collector basket (festoon basket) systems.
Every cable in the range shares a common engineering foundation: JIS C 3327 compliance for rubber-insulated machinery cables, chloroprene rubber (CR) sheathing for oil/ozone/UV resistance, EPR insulation rated to 90°C, and an ambient temperature range of −40°C to +90°C that covers every port environment on earth from arctic to tropical. Within this shared foundation, each cable type is differentiated by its reinforcement system, voltage class, conductor range, and application-specific optimisations.
| Cable Type | Series | Voltage | Key Feature | Primary Application |
|---|---|---|---|---|
| WS-RLIN-2PNCT-KB | Reel | AC 600 V | Kevlar® reinforced, vertical reel | Vertical reel systems, landfills |
| WS-RLIN-2PNCT | Reel | AC 600 V | Standard travelling reel | Yard cranes, harbour cranes |
| WS-RLIN-3PNCT | Reel | AC 600 V | Kevlar® reinforced travelling reel | STS cranes, ship unloaders |
| WS-RLIN-3PNCT-OF | Reel | AC 6,600 V | Hybrid MV power + 6-fibre optic | Automated STS cranes |
| WS-SPRD-2PNCT | Spreader | AC 600 V | Standard spreader basket | Yard crane spreaders |
| WS-SPRD-HEXNCT | Spreader | AC 600 V | Heavy-duty HEXNCT sheath | Container crane spreaders |
Reel System Cables — WS-RLIN Series
The WS-RLIN series comprises four cable types designed for motorised cable reel systems — the electromechanical devices that spool and unspool cable as the crane trolley, grab, or spreader traverses its operating range. These cables must withstand continuous tensile loading, cyclical bending around the reel drum, and hundreds of thousands of reeling cycles over their service life.
WS-RLIN-2PNCT-KB — Vertical Reel System Flexible Cable
Kevlar® aramid fibre reinforced cable with steel-stranded conductors, specifically engineered for vertical reel systems where the cable hangs under its own suspended weight. The Kevlar braid carries the gravitational load, eliminating conductor fatigue. Ideal for vertical reel systems in landfill operations and heavy machinery with vertical cable drops.
Bending Radius: 10 × OD | Tensile: 15 N/mm² | Cores: 7, 10, 13 | Size: 3.5–5.5 mm²
Reinforcement: Kevlar® aramid fibre embedded yarn braid (0.5–1.0 mm) | OD: 22.0–38.0 mm | Mass: 670–2,020 kg/km
WS-RLIN-2PNCT / WS-RLIN-3PNCT — Travelling Reel System Flexible Cables
The core of the WALSREEN reel cable family — available in standard (2PNCT) and Kevlar® reinforced (3PNCT) variants. The widest configuration range in the family, spanning 3 to 30 cores with conductor sizes from 3.5 mm² to 60 mm². Steel-stranded conductors for ≤8 mm² sizes. The 2PNCT serves moderate-duty yard cranes; the 3PNCT delivers 2–3× the cycle life for high-duty STS cranes and ship unloaders.
Bending Radius: 10 × OD | Tensile: 15 N/mm² | Cores: 3–30 | Size: 3.5–60 mm²
2PNCT: No reinforcement · OD 18.0–39.0 mm · Mass 505–2,440 kg/km · Cycle life 100K–200K
3PNCT: Kevlar® braid 0.5–1.0 mm · OD 22.0–46.0 mm · Mass 665–3,360 kg/km · Cycle life 500K+
WS-RLIN-3PNCT-OF — Hybrid Power & Fibre Optic Reel System Flexible Cable
The flagship of the WALSREEN range — a 6,600 V medium-voltage hybrid cable integrating three-phase power conductors, a neutral/earth return, and six optical fibres (50/125, 62.5/125, or singlemode E9/125) in ETFE protective tubes within a single Kevlar-reinforced construction. One cable replaces separate power and fibre optic cables, halving reel complexity and termination points. Triple-standard compliance (JIS C 3327, JIS C 3315, VDE 0250-813). The specification of choice for automated and remote-operated STS cranes.
Temperature: −40°C to +90°C | Bending Radius: 15 × OD | Tensile: 15 N/mm²
Configurations: 3×38+1×22+6OF · 3×50+1×30+6OF · 3×60+1×30+6OF
Fibre Types: Graded index 50/125 · 62.5/125 · Singlemode E9/125 | Kevlar®: 1.0 mm braid
OD: 59.0–64.0 mm | Mass: 4,390–5,640 kg/km
Spreader Basket Cables — WS-SPRD Series
The WS-SPRD series comprises two cable types designed for gravity collector basket (festoon basket) cable management systems — the trolley-carrier mechanisms that manage the trolley-to-spreader cable on port cranes. These cables hang in free-forming catenary loops between basket carriers and must withstand continuous alternating-direction bending, self-weight suspension, carrier saddle abrasion, and wind-induced torsion.
WS-SPRD-2PNCT — Spreader Basket System Flexible Cable
Standard-duty spreader basket cable with steel-stranded conductors for tension resistance, optimised for yard crane (RTG/RMG) spreader basket applications. High-core-count configurations (30, 36, 42 cores at 3.5 mm²) carry the full complement of spreader motor, sensor, communication, and auxiliary circuits. Counter-stranded core layout for omnidirectional bending flexibility and torsion resistance. Chloroprene rubber sheath with abrasion resistance per JIS C 3327 Table 6.
Temperature: −40°C to +90°C | Tensile: 15 N/mm² | Cores: 30, 36, 42 | Size: 3.5 mm²
Sheath: 3.3–3.7 mm CR | OD: 37.0–43.0 mm | Mass: 2,130–2,930 kg/km
Service Life: 8–15 years (yard crane) · 4–6 years (STS crane — not recommended)
WS-SPRD-HEXNCT — Heavy-Duty Spreader Basket System Flexible Cable
Heavy-duty spreader basket cable with HEXNCT enhanced cross-linked chloroprene rubber sheath (4.5–5.1 mm, 36–38% thicker than the standard 2PNCT), specifically engineered for container crane (STS) spreader basket applications. The enhanced sheath provides dramatically greater abrasion wear allowance at carrier contact points, impact resistance against falling twist-lock debris, and extended service life in the most demanding high-throughput terminal environments.
Temperature: −40°C to +90°C | Cores: 30, 36, 42 | Size: 3.5 mm²
Sheath: 4.5–5.1 mm HEXNCT CR | OD: 44.3–54.3 mm | Mass: 2,740–3,950 kg/km
Service Life: 8–12 years (STS crane) · 12–18 years (yard crane — over-specified)
Complete Product Comparison Matrix
| Specification | 2PNCT-KB | 2PNCT | 3PNCT | 3PNCT-OF | SPRD-2PNCT | SPRD-HEXNCT |
|---|---|---|---|---|---|---|
| Cable Management | Vertical reel | Travelling reel | Travelling reel | Travelling reel | Basket system | Basket system |
| Voltage | 600 V | 600 V | 600 V | 6,600 V | 600 V | 600 V |
| Test Voltage | 3 kV/1min | 3 kV/1min | 3 kV/1min | 17 kV/10min | 3 kV/1min | 3 kV/1min |
| Kevlar® Reinforcement | Yes | No | Yes | Yes | No | No |
| Steel-Stranded Conductor | Yes (all) | Yes (≤8mm²) | Yes (≤8mm²) | No | Yes (all) | No |
| Fibre Optic | No | No | No | 6 fibres | No | No |
| Min. Bending Radius | 10 × OD | 10 × OD | 10 × OD | 15 × OD | — | — |
| Core Range | 7–13 | 3–30 | 3–30 | 3+1+6OF | 30–42 | 30–42 |
| Conductor Range | 3.5–5.5mm² | 3.5–60mm² | 3.5–60mm² | 22–60mm² | 3.5mm² | 3.5mm² |
| Max. Sheath (mm) | 4.0 | 3.4 | 4.5 | 6.0 | 3.7 | 5.1 |
| Max. OD (mm) | 38.0 | 39.0 | 46.0 | 64.0 | 43.0 | 54.3 |
| Max. Mass (kg/km) | 2,020 | 2,440 | 3,360 | 5,640 | 2,930 | 3,950 |
| Standards | JIS C 3327 | JIS C 3327 | JIS C 3327 | JIS×2 + VDE | JIS + VDE | JIS + VDE |
Crane-by-Crane Selection Guide
The following guide maps each port crane type to its recommended WALSREEN cable selection, based on the cable management system and mechanical severity of each application.
| Crane Type | Boom/Bridge → Trolley (Reel System) | Trolley → Spreader (Basket System) |
|---|---|---|
| STS Container Crane (Manual) | WS-RLIN-3PNCT (Kevlar®) | WS-SPRD-HEXNCT (Heavy-duty) |
| STS Container Crane (Automated) | WS-RLIN-3PNCT-OF (Hybrid MV + Fibre) | WS-SPRD-HEXNCT (Heavy-duty) |
| Ship Unloader (Bulk) | WS-RLIN-3PNCT (Kevlar®) | — |
| RTG Yard Crane | WS-RLIN-2PNCT (Standard) | WS-SPRD-2PNCT (Standard) |
| RMG / ASC Yard Crane | WS-RLIN-2PNCT or 3PNCT | WS-SPRD-2PNCT (Standard) |
| RMG / ASC (Automated) | WS-RLIN-3PNCT (Kevlar®) | WS-SPRD-2PNCT (Standard) |
| Harbour Mobile Crane | WS-RLIN-2PNCT (Standard) | WS-SPRD-2PNCT (if applicable) |
| Level-Luffing Crane | WS-RLIN-2PNCT (Standard) | — |
| Vertical Reel / Landfill | WS-RLIN-2PNCT-KB (Kevlar®) | — |
Need Kevlar® reinforcement? → Yes for STS cranes and ship unloaders (high cycle, high tension). Optional for yard cranes. Essential for vertical reel systems (KB variant).
Need fibre optics? → Yes for automated or remote-operated cranes requiring gigabit Ethernet, video, or safety PLC connectivity → WS-RLIN-3PNCT-OF.
Spreader basket: 2PNCT or HEXNCT? → HEXNCT for STS container cranes (heavy sheath for abrasion and impact). 2PNCT for yard cranes (lighter, cost-effective).
Unsure? → Contact Feichun’s application engineering team at [email protected] with your crane model, cable management system type, and required core/conductor specifications.
Technology Highlights Across the Range
Kevlar® Aramid Fibre Reinforcement (KB, 3PNCT, 3PNCT-OF)
Three cable types in the WALSREEN range feature Kevlar® aramid fibre reinforcing layers — the same poly-paraphenylene terephthalamide material used in military ballistic body armour. The Kevlar braid is woven in a proprietary interlocking helical pattern that distributes tensile load uniformly across all yarn fibres simultaneously, delivering tensile strength five times greater than steel by weight, zero fatigue-induced wire breakage, complete corrosion immunity, and elastic shock load absorption. The Kevlar layer carries the cable’s suspended weight and protects internal elements (conductors, insulation, and optical fibres in the 3PNCT-OF) from mechanical stress.
Steel-Stranded Conductors (KB, 2PNCT, 3PNCT, SPRD-2PNCT)
Four cable types incorporate steel wires stranded with copper conductors (in conductors of 8 mm² or less) to increase the conductor’s tensile capacity by 3–4×. This dual-metal construction prevents copper elongation, necking, and cold-flow under the sustained gravitational loading of reel and basket system operation. The steel wires are positioned at the conductor core, carrying tensile load while the surrounding copper carries current.
Medium-Voltage 6.6 kV Architecture (3PNCT-OF)
The WS-RLIN-3PNCT-OF operates at AC 6,600 V — enabling high-power crane motor drive systems to use smaller, lighter conductor cross-sections (38–60 mm² vs. 150–300 mm² at 600 V for equivalent power). The 5.0 mm EPR insulation is VFD-compatible and withstands 17,000 V for 10 minutes.
Integrated Fibre Optic Element (3PNCT-OF)
Six optical fibres in individual ETFE protective tubes with vibration-damping filling compound, positioned at the cable’s neutral bending axis for minimum bending-induced attenuation. Supports graded index 50/125 (>500 MHz·km), 62.5/125 (>160 MHz·km), and singlemode E9/125 (0.3 dB/km at 1550 nm). Six-tube colour coding system (Orange/Green/Brown/White/Red/Black + Pink/Aqua group identifiers).
HEXNCT Enhanced Sheath (SPRD-HEXNCT)
The WS-SPRD-HEXNCT features a cross-linked chloroprene rubber sheath at 4.5–5.1 mm — 36–38% thicker than the standard 2PNCT variant. The HEXNCT compound uses enhanced carbon black loading and co-polymer modification for superior abrasion resistance, UV stability, and oil resistance, while maintaining adequate flexibility for catenary loop formation down to −40°C.
Feichun Equivalent Programme — Pricing, Lead Times & Quality
Anhui Feichun Special Cable Co., Ltd. manufactures performance-identical equivalents to the complete WALSREEN® port crane cable family. Every Feichun equivalent cable is manufactured to the same JIS C 3327, JIS C 3315, and VDE 0250-813 standards, using the same material specifications (Kevlar® aramid fibre, EPR insulation, chloroprene rubber sheathing, ETFE fibre tubes), and passes the same factory acceptance tests as the Japanese OEM product.
| Cable Type | Feichun Lead Time | Japanese OEM Lead Time | Typical Feichun Savings |
|---|---|---|---|
| WS-RLIN-2PNCT-KB | 4–6 weeks | 12–18 weeks | 40–50% |
| WS-RLIN-2PNCT | 4–6 weeks | 12–18 weeks | 40–50% |
| WS-RLIN-3PNCT | 4–6 weeks | 12–18 weeks | 40–50% |
| WS-RLIN-3PNCT-OF | 6–8 weeks | 16–24 weeks | 45–50% |
| WS-SPRD-2PNCT | 4–6 weeks | 12–16 weeks | 40–50% |
| WS-SPRD-HEXNCT | 4–6 weeks | 14–18 weeks | 40–50% |
Every Feichun equivalent cable undergoes comprehensive factory acceptance testing before shipment: dielectric withstand testing (3,000 V/1 min for 600 V cables; 17,000 V/10 min for 6,600 V cables) on all conductor cores, conductor resistance verification at 20°C confirming ≤ specification maximum on all cores, insulation resistance measurement at 20°C confirming ≥ specification minimum on all cores, Kevlar tensile load testing to 150% of rated capacity (3PNCT and KB variants), OTDR fibre attenuation testing at 850 nm, 1300 nm, and 1550 nm (3PNCT-OF), sheath thickness measurement by micrometer at multiple points, overall diameter verification, and visual inspection of all markings, colour coding, and sheath surface quality. Complete test certificates are provided with every cable delivery.
Feichun has supplied WALSREEN-equivalent port crane cables to 45+ container terminals across 6 continents, including major installations in Southeast Asia, the Middle East, East Africa, South America, Northern Europe, and Oceania. Total installed length exceeds 180,000 metres across all cable types. Zero cable failures have been attributed to material or manufacturing defects. Feichun’s port crane cable programme is supported by dedicated application engineering, field installation supervision (available on request), and 24/7 emergency technical support.
