Introducing Xelcor: new name – and a big step toward real-world deployment
Our offshore wind turbine connection technology has a new name: Xelcor – previously known under Smart PU Slip Joint.
The name may have changed, but the focus remains the same: to offer a smarter, faster, and more scalable solution for offshore foundation connections.
Xelcor is a passive-locking connection system based on high-performance polyurethane (PU). The conical parts of a monopile (MP) and a transition piece (TP), or even of segmented monopiles, slide together with a PU layer in between. This core layer compensates for tolerances, distributes loads evenly, and protects the structure – both above and below the waterline, or in the splash zone.
“Renaming our solution to Xelcor is an important step in making its capabilities visible to the outside world. The technology behind it has matured over years of development – and with this name, we’re now giving it the clarity and presence it needs to move toward real-world deployment.”
— Dr. Judith Weigold, Venture Manager Offshore Wind
PU at its core: The PU layer is the functional heart of the system – enabling strength, reliability, and flexibility in harsh offshore environments.
Discover Xelcor in under 2 minutes
Our new video provides a concise look at what Xelcor does – and why it matters. It highlights the core benefits of the system: faster installation, tolerance compensation, and long-term reliability under harsh offshore conditions. Get faster installation, and fewer specialized vessels on-site – thanks to a connection technology designed for real-world offshore challenges.
But it also goes beyond the product itself. The video shows how Rosenxt delivers more than just components – with an integrated end-to-end approach that combines design, production, and integration.
Next step: full-scale deployment and industry debut
As Xelcor reaches a new level of maturity, we are actively seeking a collaboration partner for the first full-scale 1:1 application in the water. This is a unique opportunity to validate the solution under real offshore conditions – and to jointly shape the future of foundation connections.
At the same time, Xelcor will make its official industry debut at the Offshore Wind Week in Bremen, from August 26–28, 2025, where we will present our first technical paper on the system. The event offers a valuable platform for exchange, expert feedback, and new partnerships.
This next phase marks the transition from internal validation to external readiness – and opens the door to real-world application.
For more info, visit: rosen-nxt.com/xelcor