400T Offshore Pedestal Crane
Key Technical Specifications
- Prime Mover: Diesel-hydraulic system with 838 kW output.
- Boom Configuration: 52 m length; vertical rest position 150 m, horizontal 40 m.
- Hoist Capacities:
- Main Hoist (Four Falls): Up to 400 mT at 0-6.5 m/min.
- Auxiliary Hoist (Two Falls): 38 mT at 0-25 m/min.
- Operating Radii: Main hoist from 12 m min to 53 m max; auxiliary from 13 m min.
- Slewing Speed: 0-2.0 rpm.
- Radius Transition Time: 300 seconds (empty hook max to min); 395 seconds (full load min to max).
- Total Approximate Weight: 559 tonnes.
- Environmental Resilience: Max in-service heel/trim of 3.0°/3.0°; non-service wind speed up to 75 m/s.
- Safety Features: Includes aviation lights, fixed and fly cameras, luff winch, and personnel lift capability (1.8 mT at 30 m radius, wind ≤10 m/s).
Load Chart (Main Hoist, 52 m Boom, Four Falls)
Safe working loads (SWL in mT) tailored for varying wave heights and conditions. All lifts above sea level, with loads below the hook.
| Radius (m) | Boom Angle (deg) | 5 m Wave Onboard (mT) | 5 m Wave Offshore (mT) | 2 m Wave Onboard (mT) | 2 m Wave Offshore (mT) |
|---|---|---|---|---|---|
| 12.0 | 82.7 | 400.0 | 400.0 | 400.0 | 400.0 |
| 20.0 | 73.3 | 400.0 | 400.0 | 400.0 | 400.0 |
| 24.0 | 68.5 | 337.5 | 337.5 | 390.5 | 314.6 |
| 32.0 | 59.0 | 286.3 | 284.3 | 282.4 | 246.5 |
| 40.0 | 48.4 | 208.8 | 208.8 | 198.8 | 177.0 |
| 48.0 | 36.8 | 167.8 | 167.8 | 158.8 | 142.3 |
| 52.0 | 30.5 | 150.3 | 150.3 | 141.3 | 126.8 |
| 54.2 | 26.9 | 141.7 | 141.7 | 132.7 | 119.2 |
