Secondary Steel Installation Tools

Drawing on more than 15 years of expertise, TWD has developed a range of bespoke tools specifically designed to streamline and simplify the installation of secondary steel components for foundations.

Offshore wind farms increasingly opt for extended monopiles with secondary steel components over traditional monopiles with transition pieces. This transition simplifies the design and fabrication of primary steel and poses unique challenges for installing secondary steel components like anode cages, boat landings, internal and external platforms. To overcome these challenges, TWD works closely with clients to develop an optimal set of installation tools tailored to their specific installation methodology.

Featured Projects

Secondary Steel Installation Tool – Thor

Boat Landing Installation Aid – Nordsee One

Secondary Steel Installation Tool – Hollandse Kust Zuid OWF

Increased Installation Efficiency

When installing various secondary steel components on a monopile, combining multiple components in a single offshore lift using the same installation tool can significantly reduce both the number of offshore lifts and the installation tools required. TWD has developed a versatile range of installation tools capable of installing one or more secondary steel components in a single lift. These tools streamline the process, minimize the number of offshore lifts required and thereby reduce the overall installation time for secondary steel components. An example of this can be seen in the left image, where TWD designed a Secondary Steel Installation Tool for the Hollandse Kust Zuid OWF. This tool enabled the installation of the internal platform and boat landing in a single offshore lift.

Future-proof Tools for Flexible Installation

As the use of secondary steel components grows in the offshore wind industry, their size and design often vary from one wind farm to another, leading to complex, project-specific installation tools.

TWD tackles this challenge by enhancing the flexibility of secondary steel installation with our innovative solutions. Our Modular Secondary Steel Installation Tools and Modular Tugger Frame are designed to simplify and future-proof the installation process, accommodating diverse project requirements.

Modular Secondary Steel Installation Tool

The Modular Secondary Steel Installation Tool (SSIT) is designed for use across various projects, enabling the installation of multiple secondary steel components in a single offshore lift. It can lift and install the internal platform, anode cage, and boat landing – all remotely controlled – in one lift. The SSIT stands out from traditional tools with its modular frame, which can be customized to accommodate different secondary steel designs and monopile diameters. This adaptability ensures that the SSIT is effective for a range of offshore wind farms, regardless of the design or size of the components.

Modular Tugger Frame

The Modular Tugger Frame (MTF) integrates the complex functionalities needed for installing various secondary steel components. It complements simple, cost-effective installation tools that securely hold and guide the components onto the monopile. Its adaptable design allows the MTF to function independently of the secondary steel design, making it reusable across various projects. By increasing installation efficiency and reducing the need for multiple complex tools, the MTF streamlines the installation process.

We look forward to supporting your next challenge

TWD stands as an experienced engineering company, providing robust solutions for different offshore wind projects. Our multidisciplinary teams tackle market-specific challenges through method engineering and equipment design. Contact us to discover how our solutions can improve your operations’ safety and cost-effectiveness.