INVESTORS CAREERS PRESS ROOM CONTACT SAFETY ESG ABOUT US PRODUCTS & SERVICES INNOVATION Q&A NEWS Production Process Production Process Our core competence is the serial rolling, automated welding and coating of extremely thick plates to create unique tubular offshore foundations, such as monopiles and other foundation components. In addition, we also produce primary steel for transition pieces, jacket legs, pin piles and pile sleeves. We have divided our production capabilities over two different locations. The production of every monopile starts in Roermond on a specialized production line for large diameters. A vast majority of the rolled and welded cans, cones and sections are shipped to Rotterdam, where they are assembled into complete monopiles. Primary steel for transition pieces as well as smaller or shorter monopiles are manufactured in Roermond. Transition pieces are fitted out with platforms, boat landings, etc. by a specialized partner. Components for offshore steel structures are manufactured mainly in Roermond on a separate production line for smaller diameters. Depending on market requirements, this production line is also used to manufacture pin piles for jacket foundations for offshore wind energy projects. The production method for the primary steel for transition pieces and for oil and gas components is similar to the production method for monopiles. Offshore wind farms are becoming increasingly comprehensive and complex, and are being built further offshore. We are seeing a clear trend of increasingly heavier and larger foundations. Quality standards for basic materials and the welding joints of our monopiles are also becoming more strict with more stringent requirements. This has created a demand not only for high welding speeds, but also for high-quality, increased process capabilities and flawless welding joints. We need to comply with strict acceptance criteria and extremely close tolerances. Ensuring that these can be achieved within an ever decreasing lead time requires high standards of discipline, insight and experience. It is our most valued asset, our professionals, who can make this possible time after time. How we make a monopile (monopile production process) Our production process Previous Next References Hollandse Kust Zuid 2020 More Dogger Bank B 2020 More Dogger Bank A 2020 More Hollandse Kust Noord 2020 More Working at Sif See all the available vacancies: Roller OP-Welder Or take a look at werkenbijsif.com Join our newsletter Join SAFETY ESG Environmental Social Governance ABOUT US Company Profile Management Capacity & Competences Production Process Quality People at SIf PRODUCT & SERVICES Monopiles & Transition Pieces Pin Piles & Jacket Tubulars Marshalling & Logistic Services References INNOVATION Product Innovation Process Innovation Joint industry projects INVESTORS Investor Assets Library Shareholder Information Financial Calendar IR Press Releases Webcast Presentations Placement Information Q&A NEWS CONTACT Safety Rules Roermond Safety Rules Maasvlakte 2 Contact Form Access Form Maasvlakte 2 Our Agents Meet us at Exhibitions SIF HEADQUARTERS ROERMOND Mijnheerkensweg 33 6041 TA Roermond The Netherlands P.O. Box 522 6040 AM Roermond The Netherlands SIF MAASVLAKTE 2 Harbour number 8322 Pieter van Vollenhovenweg 101 3199 KV Maasvlakte Rotterdam © 2021 SIF GROUP Disclaimer General Purchasing Conditions Cooky Policy Privacy Policy FOLLOW US