Sea fastening

Complete Engineering, Procurement, Construction and Installation

Excellent fabrication and yard facilities with direct quayside access

We secure your assets for road and sea transportation

High-quality solutions delivered on time

Sea fastening for wind turbine components

We have extensive experience with sea fastening design, engineering, fabrication and installation for offshore wind turbine components such as blades, nacelles, hubs and towers.

From start to finish - we handle your project in our well-equipped fabrication and yard facilities with direct access to quayside for unloading and mobilisation.

Blade handling systems for offshore wind turbines

Blade handling systems

Our consultancy engineering division has been involved in design and manufacture of an all-new blade handling system. Today, the system makes lifting, installing and shipping offshore wind turbine blades easy and less time-consuming.

Moreover, as in every project we are involved in, we delivered high quality to deadline, thanks to our highly skilled in-house engineering staff and our own advanced workshops.

We also do ...

  • Primary and secondary steel structures
  • Scaffolding and rigging
  • Pile grippers, up-ending tools
  • Lifting equipment and handling tools
  • Piping and spools engineering, fabrication and installation
  • Bridges, access ways, skids
  • Stair towers, stairs, handrails
More information
Sea fastening

We have done it before ...

Seajacks Scylla

    

Customer

Seajacks

Location

Denmark

Period

September - December 2016

Project scope

The project scope consisted of fabrication and sea faseting of the Bladerack structure and Tower Grillage with adaptors. The sea fastening installed during this mobilisation will with minor modifications serve for three types of WTG’s.

Seajacks Scylla

Bilfinger, Pacific ORCA

    

Customer

Bilfinger Marine & Offshore Systems

Location

Denmark

Period

February – June 2015

Project scope

The project scope consisted of fabrication of 342 tons of sea fastening and handling equipment to facilitate the mobilisation of the foundations for the SANDBANK OWF. Scope included installation of the sea fastening and handling equipment on board the Pacific ORCA.

Open project reference
Bilfinger, Pacific ORCA

A2SEA, Sea Challenger

    

Customer

A2SEA

Location

Denmark

Period

April – July 2015

Project scope

The overall project scope consisted of fabrication and installation of helideck sub-structure on board the A2SEA Sea Challenger. The scope included project management from fabrication phase to installation phase including handover of the project to A2SEA.

Open project reference
A2SEA, Sea Challenger

Siemens Wind Power

    

Customer

Siemens Wind Power A/S

Location

Denmark

Period

January 2015 – May 2015

Project scope

The overall scope for the project consisted of design, calculation, DNV design approval and fabrication of 20 feet transport frames for gearbox and main shaft for a 4MW windturbine. Total weight of approx. 40 ton.

Open project reference
Siemens Wind Power

Contact our sea fastening specialists

Torben Thorhauge

Manager, Fabrication Projects

Semco Maritime A/S

Staget 1

6700 Esbjerg

Denmark

 

Mogens Jensen

Manager, Steel Fabrication

Semco Maritime A/S

Staget 1

6700 Esbjerg

Denmark