Capacity & Competences
Sif operates from two locations in the Netherlands: Roermond and Rotterdam. At these sites, we have 47 bespoke welding machines at our disposal, all designed in-house, as well as eight rollers. Our branch in Roermond, which covers more than 100,000 square metres, specialises in the production of raw steel for transition pieces, pin piles, legs and pile sleeves. We are able to process steel with a wall thickness of up to 160 mm.
Our Maasvlakte location stretches across more than 62 hectares and specialises in monopiles with a diameter of up to 11 metres. Given its state-of-the-art equipment and direct access to the North Sea, it is also the perfect site for warehousing and transloading.
Achievements we're proud of:
- More than 2,500 monopiles produced.
- Our production processes are highly automated.
- We get involved right from the start of a project.
- Strong partnerships.
- Unique expertise in rolling and welding.
- We're financially healthy and stable.
- Excellent service: we always deliver on time and within budget.
- Strict focus on quality, health, safety and the environment.
- Sustainability and the well-being of our people always come first.
Sif's key data production site


Sif's plant on the Second Maasvlakte in Rotterdam is located directly on the North Sea.
Our location on the Maasvlakte covers 62 hectares and is an ISPS-certified terminal. We have a deepwater quay of 628 meters with a nautical draft of about 15.5 meters.