Jack up leg and spudcan installation

Jack up vessel Aeolus

Aeolus (Van Oord) is an innovative and advanced transport and installation jack up vessel for installing Offshore wind turbines. The jack up vessel was ordered by Van Oord at the German shipyard Sietas in Hamburg and was to be delivered in September 2012. Eager.one was asked to construct leg-lifting equipment and to prepare a method statement for placing the legs and spudcans.

Albatros’ Topside lifts on to the offshore wind farm

Install legs into jack up vessel

We designed heavy lifting equipment for lifting the four legs. We came up with the idea of a hydraulic pin-pusher lifting tool to lift the legs at the top. At the bottom of the leg we installed a tailing frame to support the legs during the upending. First we placed the legs upright on the dock and removed the frame before positioning the leg into the jack up vessel.

lifting tool Jack up legs

jackup leg installation

Spudcans attached by divers

As the four legs were installed, it was time to attach the spudcans to the legs. Spudcans are inverted cones which are mounted below the jack up legs. Eager.one prepared method statement to install the spudcans out of the drydock. Via the jack up leg a cable was lowered and attached to the spudcan by divers. The spudcan was then lifted and bolted to the leg from the inside. A very precise job.

To cover this operation our engineers were presented at the time the spudcans were installed. Setbacks could be helped immediately and on the spot, this ensured a swift operation.


Senior Project Engineer
0031 30 240 80 60

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As an independent partner, we advise about, design and construct everything from concept study to project completed. Our in-house developed design software calculates everything concerning mobile cranes and bespoke heavy equipment, while our people offer the expertise and skills that secure your success.


Consultancy / Design & Construction

Our 40 years of experience provides the basis of a successful start of your project: right from the FEED phase. Preparation is vital. Therefore our concept studies, method statements and mission equipment offer you all the support you need.


Consultancy / Design & Construction

Our aim is to optimize your project team’s results. With our exclusive knowledge of lifting and transportation we eliminate and manage risks. This is how we reach our collective goal: Zero Accidents, Zero Incidents.



We have built up a great deal of experience with the design of (mobile) cranes and bespoke heavy equipment such as piling machines and excavators. Our customer base includes the most prominent producers of cranes and heavy machinery worldwide.

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