Description
Industry & Site Demands
Operating adjacent to the sea, this overhaul yard handles large ship sections under extreme exposure to saltwater, high humidity, and strong winds. Equipment requires ruggedness, corrosion resistance, and reliable long-travel performance typical hallmarks of shipyard gantry systems
Technical Specification
| Feature | Specification / Benefit |
| Capacity | Dual-hoist system- 10 t + 10 t, enabling 20 t tandem lifts or split-load operations |
| Span | 28 m — ample clearance for docking ship sections and side-by-side component handling |
| Heavy-Duty Motors | High torque, long-travel motors engineered for continuous operation under full load |
| Custom Paint Finish | Marine-grade epoxy coatings + UV inhibitors for long-term corrosion protection |
| Structural Design | Steel box-girder frame, FEA-verified for dynamic shipyard loads and wind resistance |
| Control & Safety | VVFD motion control (hoist, trolley, bridge) + anti-sway, overload, and emergency-stop systems |
| Duty Rating | Heavy-duty (FEM A6 equivalent) for frequent, repetitive shipyard lifting cycles |
| Travel System | Rail-mounted with sealed wheels and festoon-less, cable-tray power delivery |
| Environment Protection | IP65 enclosures, stainless steel fittings, and sealed electrical cabinets for coastal marine durability |
Execution Timeline & Methodology
- Design & Engineering:
- Conceptualized to client specs with detailed FEA for span deflection and wind loading
- Custom painting and material selections for seaside endurance.
- Fabrication & Motor Integration:
- Assembled in a regional workshop with pre-installed motor-drive assemblies.
- Coatings applied under controlled conditions, fully curing before shipment.
- Transportation & Offshore Erection:
- Modular sections shipped to RAK Maritime City.
- Crane erected in situ using heavy mobile cranes with precision assembly.
- Testing & Commissioning:
- Load testing with tandem and split-load scenarios.
- Stress tests for full-span trolley and bridge travel.
- Operator training on controls, safety features, and maintenance.
Why This Crane Stands Out
Custom-Built for Marine Conditions:** Heavy-duty motors, sealed electrics, marine paint, and engineered to withstand salty air and rigorous schedules Flexible Hoist Configuration:** Dual hoists enable versatile lifting patterns, crucial for complex ship repair work.
Durability & Reliability:- Designed as a lifetime-yielding asset—reliable and low-maintenance—with periodic inspections and marine-grade materials.
Key Learnings & Best Practices
Site-Specific Engineering Matters: Seaside locations require specialized coatings, sealed systems, and weatherproof controls.
Twin-Hoist Benefit: Mishandling or offset-heavy loads can be mitigated by splitting across two hoists—improved safety and precision.
Modular Erection Shaves Downtime: On-site assembly from modules minimizes yard disruption and streamlines commissioning.
Client Impact
The client can now handle large ship sections efficiently, safely, and reliably without fear of corrosion or mechanical failure. The crane’s tailored features ensure smoother operations, faster project turnaround, and long-term value with minimal maintenance.
