Hot Gas Duct and Valve Replacement – Irish Cement
Tusker Steelworks Limited · Louth
Finalist in: Engineering & Fabricated Assemblies
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Tusker Steelworks successfully delivered the replacement of the 36539 Coal Mill 3 Hot Gas Duct and Valve for Irish Cement during the plant's annual shutdown. The project required detailed planning, precision fabrication, specialist lifting operations, and efficient installation within a tightly controlled shutdown programme. The works involved the complete removal and replacement of a critical hot gas duct and valve assembly, ensuring the new system was fabricated, installed, and commissioned safely and efficiently within the allocated shutdown period.
The Story
The project required the replacement of a large and complex ducting system serving Coal Mill 3, with all works completed during a limited shutdown window.
Key challenges included:
• Coordinating fabrication, delivery, removal and installation activities within a fixed shutdown schedule
• Managing large-scale lifting and access requirements
• Ensuring compliance with Irish Cement's stringent safety procedures
• Achieving precise alignment of the new duct and valve assembly to existing plant infrastructure
• Minimising risk and maximising efficiency during the shutdown period
Tusker carried out a detailed site assessment and engineering review before commencing fabrication works. Using its extensive fabrication capability, the company manufactured the replacement ducting and support structures entirely in-house.
The fabrication scope included:
• Forming, rolling and bending of duct sections
• Welding of heavy-gauge steel ducting ranging from 5mm to 10mm thickness
• Manufacture of bespoke supports and connection points
• Production of complex fabricated components to meet site-specific requirements
3D scanning technology was utilised to verify dimensions and ensure accurate integration with existing plant infrastructure, allowing fabrication to be completed with the highest degree of precision.
Why It Should Win
The Hot Gas Duct and Valve Replacement for Irish Cement showcases Tusker Steelworks' ability to deliver a complete engineering solution, combining in-house fabrication expertise, specialist lifting capability, and exemplary project management within a critical annual shutdown period.
What sets this project apart is the fact that Tusker delivered the entire package from start to finish. The project involved the fabrication, supply, delivery, removal, lifting, installation, and commissioning of a new hot gas duct and valve assembly, while maintaining the highest standards of safety, quality, and efficiency. Every aspect of the works was carefully planned and executed, including the establishment of exclusion zones, dismantling and removal of the existing assembly, installation of a new single vane damper, provision of all fixings and materials, and the management of all access and lifting requirements using cranes, teleporters, MEWPs, and scaffolding.
A key differentiator was Tusker's ability to fabricate all ducting and support steelwork entirely in-house. Using advanced fabrication techniques, including forming, rolling, bending, and welding of 5mm–10mm plate steel, the team produced a high-quality, bespoke solution tailored to Irish Cement's operational requirements. Maintaining full control of fabrication ensured exceptional quality standards, reduced programme risk, and enabled seamless coordination between workshop production and site installation.
The project also demonstrated outstanding teamwork and integration across Tusker's fabrication, mechanical, lifting, and site management teams. This collaborative approach allowed the duct and valve replacement to be completed safely and efficiently within the shutdown window, ensuring the plant was ready to return to operation as scheduled.
The successful outcome delivered long-term value to Irish Cement through a durable and precisely installed solution that aligned accurately with existing infrastructure. Beyond the technical achievement, the project highlights Tusker's commitment to safety, innovation, quality workmanship, and customer-focused delivery.
This project deserves recognition because it exemplifies the very best of engineering excellence, an end-to-end solution delivered safely, on schedule, and to the highest standards of fabrication and installation. It is a testament to Tusker Steelworks' capability to undertake complex industrial projects and successfully transform engineering challenges into practical, high-quality results.
Project Team
Tusker Steelworks Tusker Plant Maintenance
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Project Details
Tusker Steelworks Limited
Louth
Irish Cement
February 2026
#77144
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2026 Irish Steel Awards Finalist
Congratulations to Tusker Steelworks Limited for being Shortlisted for an Irish Steel Award!
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