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起重机

12 Min Read
Spreader Bar Cable Application: What is a spreader bar? Container crane context: Gantry crane positioned at dock Overhead hoist mechanism: Winch + trolley system Spreader bar: Attachment point below hoist Function: Grips container corners, distributes load, tilts container for placement Spreader bar structure: Framework: Steel tubes/beams forming rectangular frame Lifting points: 4 corner attachment rings (one per container corner) Electrical system: Motor-driven locks, position sensors, lighting Cables: Power supply for motors + control signals for locking mechanism Cable location (spreader bar): Vertical run (primary): From crane hoist (top) down 20–40 m to spreader bar (bottom) Function: Supply power for: - Corner lock solenoids (release container locks) - Position feedback sensors (confirm locks engaged) - Optional: Spreader bar lighting (visibility during operation) Simultaneous function: Act as partial mechanical support (share load with main hoist cable) Horizontal distribution (on spreader bar): From entry point distributed across spreader frame Supply all four corner lock motors Branching: May split into smaller branches (4× circuits to corners) Mechanical load: Cable must withstand: Static tension: Weight of container payload (20–40 tons distributed) Dynamic loads: Jerking during load acceleration, swinging in wind Thermal: Tropical port environment, direct sun, saltwater spray Abrasion: Rubbing against spreader frame during operation Cable design philosophy: Dual function (unique): Electrical function: Deliver 300/500V power for locking system Mechanical function: Share load-bearing (not primary structure, but support role) Different from: Pure electrical cables (festoon, lifting): Electrical function only Pure mechanical ropes: Mechanical function only BASKET SPREADER 730: Both functions integrated Speed specification rationale: 160 m/min (relatively slow): Container crane cycle time: ~45–60 seconds per lift Descent distance: 20–40 m Descent speed: 20–40 m ÷ 45–60 sec = 0.33–0.9 m/s = 20–54 m/min Average speed: ~30 m/min (loading) + 20 m/min (discharge) = 25 m/min 160 m/min specification: 6–8× safety margin on speed Design: Allows for fast emergency ascent if needed Why not higher speed? Mechanical load constraint: Heavy cable (4000 N = ~400 kg equivalent) Inertia: Accelerating 400 kg + spreader bar + container inertia takes time Structural: Crane frame limits acceleration rates (safety interlocks) Result: 160 m/min is practical maximum for loaded spreader bar
Technical Department
on12/06/2026

Что такое Flexible Power and Control Flat Cables in line with CEI 20-19 Part 4 Table 1: FLEXIFLAT 450/750 V

FLEXIFLAT 450/750 V (N)GFLGÖU-J / (N)GFLGÖU-JZ — это гибкие плоские силовые и контрольные кабели для подвижного оборудования, где кабель одновременно испытывает многократный изгиб, продольное растяжение, истирание, контакт с направляющими, роликами, кабельными тележками и тяжёлой промышленной средой. Для Feichun такая конструкция особенно важна в шахтных машинах, портовой механизации, перегружателях, конвейерных системах, крановых тележках и мобильных приводах, где круглый кабель не всегда оптимален по укладке, высоте пакета и контролю движения.
8 Min Read
H07BN4-F HAR Nomenclature Breakdown (per CEI 20-20/20-19): H = Harmonized standard designation (IEC 60227 compliance) Indicates cable meets international safety standards Full compatibility with European electrical regulations 07 = Voltage designation (Uo/U = 450/750V) 07 = 450/750V nominal voltage class (other classes: 03 = 300/500V, 04 = 400/690V) Testing: 3 kV test voltage (10 times nominal) B = Special feature (Flexible/Benign environment) B typically indicates bare or flexible conductor design (Standard = no letter designation) N = Rubber type designation N = Normally-proportioned sheath thickness (S = Slim/reduced, T = Thick/reinforced) For H07BN4-F: N = Standard thickness for 450/750V industrial use Insulation thickness: 1.2 mm per DIN VDE 0282 Sheath thickness: 1.0–1.5 mm per DIN VDE 0293 4 = Number of principal tests/features Typically indicates: (1) Temperature range, (2) Insulation type, (3) Sheath composition, (4) Mechanical properties certification F = Flexibility designation F = Fully flexible (can be wound on reels) (Other: S = Service-cord, C = Cable) H07BN4-F can be: Coiled on reel: Yes (reelable) Bent radius: Down to 4×D (normal use) to 2×D (close to terminal) Repeated winding: Yes (drum rating available) Continuous flexing: Yes (up to 50+ million cycles per EN 50266) HAR = Harmonics-compatible technology designation HAR = High-frequency harmonic and transient rated Specifically designed for: - VFD (variable frequency drive) motor circuits (up to 20 kHz switching) - Welding equipment (high current transients, multi-frequency content) - Industrial power electronics environments (distorted waveforms) HAR testing per EN 50334: Transient overvoltage withstand: 3× nominal voltage, sustained Harmonic content up to 50th harmonic: Fully rated Dv/dt immunity: >3 kV/µs (fast switching events) Comparison: Standard vs. HAR designation Standard H07BN4-F (without HAR): Frequency: Single 50/60 Hz only Total harmonic distortion (THD) limit: 20% acceptable (VFD typical) Transient immunity: Enhanced (3+ kV nominal test) Suitable for: VFD motors, welding, power electronics Cost: +8–12% premium over standard Application advantage: Single cable type serves both conventional and VFD circuits
Technical Department
on12/06/2026

FESTOONFIBERFLEX: гибкий резиновый оптоволоконный loose tube кабель для передачи данных на кранах, фестонных системах и оборудовании material handling

FESTOONFIBERFLEX — это гибкий оптоволоконный кабель в резиновой оболочке, предназначенный для передачи сигналов и данных на кранах, фестонных системах, простых кабельных барабанах и оборудовании material handling. Благодаря применению fibre-optics кабель обеспечивает абсолютную невосприимчивость к электрическим помехам, что особенно важно в промышленной среде с приводами, двигателями, силовыми кабелями и коммутационным оборудованием.
15 Min Read
BASKET SPREADER 750: Next-Generation Hoisting Cable Architecture The BASKET SPREADER 750 (3GSLTOE) represents a fundamental advancement in hoisting control cable design, specifically engineered for next-generation automated port crane systems operating under extreme environmental and operational constraints. Unlike the BASKET SPREADER 740's 300/500V AC specification, the 750 operates at 0.6/1kV AC with dual-voltage DC capability (0.9/1.8 kV)—a classification shift that enables: Higher power capacity – 2–3× greater amperage per conductor, enabling longer cable runs with lower voltage drop Medium-voltage infrastructure compatibility – Direct integration with port substation power distribution systems (0.6 kV = 600V three-phase industrial standard) DC dual-voltage operation – Simultaneous support for AC motor control and DC feedback/signaling circuits (0.9/1.8 kV DC margins) Extreme temperature capability – Operating range −50°C to +80°C (vs. SPREADER 740's −20°C to +60°C), addressing Arctic port terminals and tropical high-ambient scenarios Advanced insulation chemistry – GAALTHERM® 530 thermoplastic compound replaces standard PVC/PUR, delivering superior chemical resistance and thermal stability This cable bridges the gap between standard control cables (300/500V, limited temperature) and heavy industrial medium-voltage distribution cables, creating a purpose-built solution for modern automated gantry crane systems in global port terminals.
Technical Department
on12/06/2026

Что такое ÖLFLEX® INSTRUM RE-Y(ST)YRY: инженерный анализ армированного heat resistant PVC кабеля с общим экраном

ÖLFLEX® INSTRUM RE-Y(ST)YRY — это армированный heat resistant PVC instrumentation/data cable с PVC (V-90HT) core insulation, overall screen, PVC inner sheath, galvanized steel wire armour and PVC outer sheath. Кабель предназначен для communication, data and voice transmission signal в industrial process manufacturing plants, Oil and Gas industry and petrochemical industry. По предоставленным данным он основан на EN 50288-7, имеет flame retardance according to IEC 60332-3-24, stranded plain annealed copper wires according to BS 6360 / IEC 60228 Class 2, aluminium polyester tape collective screen, tinned copper drain wire, black PVC inner sheath and black or blue PVC outer sheath.