2024 Main Crane 1200t Self-Propelled Self-Elevating Wind Turbine Installation Platform

VESSEL INFO

• Offer type Ship for sale
   
• Type Offshore Wind Installation Vessel
   
• Classification China Classification Society
   
• Year of construction 2024
   
• Length 110.4m
   
• Width 42m
   
• Depth 8.5m
   
• Asking price $ 65 500 000
   

DESCRIPTION

2024 Main Crane 1200t Self-Propelled Self-Elevating Wind Turbine Installation Platform

1. Vessel Type
This platform is a four-leg hydraulic pin-type self-elevating wind turbine installation platform, mainly consisting of the hull, 4 cylindrical legs, 4 hydraulic jacking systems, etc. It features a streamlined bow, a square stern, an all-welded steel hull with a partial double bottom amidships, a continuous deck, accommodation and a helicopter landing platform at the bow, an unobstructed working deck amidships, a 1200t revolving crane around the leg at the port side of the stern, 3 azimuth thrusters at the stern, 3 bow thrusters, and full electric drive.

2. Vessel Functions
This platform is a self-elevating wind turbine installation platform capable of pile driving, tower lifting, and wind turbine installation for offshore wind turbines up to 14MW. Its navigation area meets requirements for international mobilization and operation. Deck area and variable load allow for transportation and pre-installation of two sets of 6MW or one set of 14MW wind turbine components.

3. Operating Range
IACS classed, unlimited towing area, operating area is near-shore waters, maximum operating water depth 50m. This platform is designed for ice-free operation.

4. Main Design Parameters
Maximum operating water depth: 5m ~ 50m
Length overall: 110.4m
Breadth (moulded): 42.0m
Depth (moulded): 8.50m
Number of legs: 4
Leg parameters (section × length): Cylindrical leg, diameter 4.2m, length 96.4m
Leg longitudinal spacing: 66.0m
Leg transverse spacing: 31.8m
Spudcan length × width: Rectangular 13.5m × 9.9m
Main crane: 1200t @ 28m, standing operation
Jacking capacity: Single leg lifting load (including friction with leg): 5040t
Single leg maximum support (preload) load: 7200t
Single leg pull-out force (including friction with leg): 4500t
Single ring beam pull-out load (including friction with leg): 3600t
Propulsion units: 3 × 1800kW (stern), 3 × 900kW (bow)
Deck load: 1700t
Main crane: 1200t × 28m
Auxiliary crane: 350t × 30m
Accommodation: 100 persons
Endurance: 20 days
Design service life: 20 years
Gross tonnage / Net tonnage: 13599 / 4155
Lightship weight: 17000t
Towing resistance (own hull): 96.83t
Maximum bollard pull: 117.47t
Maximum towing force during towing: not exceeding 1153kN

5. Main Tank Capacities
Ballast water: net volume 12674 m³, weight 12991t
Diesel oil: net volume 489 m³, weight 399t
Fresh water: net volume 325 m³, weight 325t
Lubricating oil: net volume 14.8 m³
Hydraulic oil: net volume 23.8 m³
Bilge water tank: net volume 76.2 m³
Fuel overflow tank: net volume 19.1 m³
Waste oil tank: net volume 19.1 m³
Sewage tank: net volume 292.1 m³
Waste lubricating oil tank: net volume 50.8 m³
Cooling water drain tank: net volume 50.8 m³

6. Deck Transport and Storage Capacity
The open working deck area is approximately 2700 m². The platform is capable of pile driving, tower lifting, and wind turbine installation for offshore wind turbines up to 14MW. The navigation area meets requirements for international mobilization and operation. The deck area and variable load allow for transportation and pre-installation of two sets of 6MW or one set of 14MW wind turbine components.

7. Deck Design Loads
Main deck cargo area: 12 t/m²
A deck exposed area: 1.89 t/m²
Double bottom: 1.89 t/m²
Deckhouse: 0.46 t/m²

8. Jacking Parameters
Single leg lifting load (including friction with leg): 5040t
Single leg pull-out force (including friction with leg): 4500t
Single ring beam pull-out load (including friction with leg): 3600t
Single leg maximum support (preload) load: 7200t
Leg diameter: 4.2m
Leg hole pitch: 1.6m
Leg holding frame dimensions: 10.2m × 10.2m × 13.5m
Platform lifting speed: 20 m/h
Leg lifting speed: 30 m/h
Number of sets: 4
Service life: not less than 2500 jacking cycles
Platform heel/trim alarm angle: 0.5°
Platform heel/trim shutdown angle: 1.0°
Power supply: Main power circuit AC690V, 50Hz, 3P
Control circuit AC220V, 50Hz, 1P
Backup power supply AC220V, 50Hz, 1P

9. Mooring Equipment
The platform is equipped with 2 navigating anchor systems, located port and starboard on A deck. Each system consists of anchor, anchor line, anchor windlass, etc.
Anchor line: Specification: Φ90 6×49SWS+IWR 1960 steel wire rope (MBL 5650kN). (Includes approx. 12.5m anchor chain, AM3, chain diameter 90)
Wire rope length: approx. 900m each.
Quantity: 2 ropes in total.
Anchor windlass: Working load: 600kN (middle layer)
Overload load: 900kN (middle layer)
Hauling speed: 12 m/min (under working load, middle layer)
Holding load: 4520kN (second layer)
Wire rope diameter: Ø 90 mm
Storage capacity: approx. 900m.
Additionally, 2 anchor cradles, anchor buoys, chain stoppers, fairleads, etc. are provided.

The EX Chinese port price is usd65.5 million