A heat exchanger with a damaged tubesheet gasket surface came to our new Koggehaven workshop and required restoration.

After weld build-up to repair the packing face, the surface had to be machined back to specification. Limited accessibility due to internal tube coating prevented installation of a conventional flange facing machine. Protecting the coating was critical to avoid additional rework.

We deployed an DL Ricci NB43 Clambshell machine, enabling accurate in-situ machining without disturbing the coated internals. Portablemachining solutions like this deliver workshop-level tolerances.
The result is a restored gasket face ready for reliable operation under process conditions.

J. de Jonge | Progresso. supports customers with Fieldmachining expertise where precision, access and planning meet. Whether during turnarounds or corrective maintenance, we provide controlled solutions built around your assets.

Contact us to discuss your next machining challenge or share your experience. Our teams combine engineering knowledge with proven equipment to achieve repeatable accuracy within demanding industrial environments and strict safety requirements every single project execution phase.