INVESTORS CAREERS PRESS ROOM CONTACT SAFETY ESG ABOUT US PRODUCTS & SERVICES INNOVATION Q&A NEWS 'Skybox: slip joint connection for secondary steel' Michel Kurstjens, Product Strategy Director Skybox: slip joint connection for secondary steel Sif uses new technologies and smart solutions to take the market to the next level and reduce the costs of wind energy. There’s also a need for this: to remain competitive with other energy sources (without the need for subsidies), the costs of the entire chain must be reduced and revenues increased. The Skybox is one of those cost-saving innovations. About a year and a half ago, Michel Kurstjens, Product Strategy Director, saw that many of our clients were shying away from a transition piece with secondary steel (ladders, boat landing, and main access platform) and instead choosing a direct bolted connection of the tower on a monopile with brackets where the secondary steel can be hoisted offshore. This saves costs, because no transition piece is needed, but is time-consuming in terms of installation and awkward in terms of manufacturability. The manual welding of the brackets on the monopile is a huge interruption to the production flow. ‘This can be improved’, Michel thought, so he sought the help of Sif's designers. They worked with DOT (Delft Offshore Turbines) and consulted with technicians. The result is the Skybox! What's the Skybox? Michel explains, ‘The Skybox is a new application of Slip Joint Technology. It is a connection between the monopile and the tower that slides over the monopile with a Slip Joint Connection. The Skybox uses the Slip Joint Technology to install the secondary steel on the monopile with one offshore hoist. The use of a catcher plate at the bottom of the Skybox makes it suitable for DP installation vessels. As such, the Skybox not only saves time and costs during production, but in the installation process as well. Mission accomplished!’ 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