VISCARIA RESTARTS ITS COPPER MINE with Jernbro as partner
As Viscaria prepares to reopen its copper mine outside Kiruna, extensive installations are required to pump out and treat the water that has filled the mine during its downtime. Jernbro is responsible for the piping and mechanical contracting in the new water treatment plant – a technically demanding assignment that is vital for the restart.
CASES AND STORIES
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Maintenance, Turnaround and shutdown, WeldingPlant back in operationWhen energy must be produced, security of supply is essential – even when the boiler fails just before Christmas in Denmark. During periods of high load, there is no room for prolonged shutdowns, and a failure of key components can have a direct impact on both production and supply. This places demands on rapid mobilization, technical oversight, and safe execution from day one.Read more
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Relocation and rebuilds, WeldingComplex rebuild completed without incidentsWith this reactor assignment, we resolved a case characterised by technical challenges, a changed scope, and extensive requirements for inspection and documentation. The work ranged from internal repairs to a complete rebuild of the reactor head. Today, the facility is back in stable operation at Equinor.Read more
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Construction and engineering, Installation and assembly, PrefabricationEthanol column for the pharmaceutical industryIn connection with the construction of a major production unit in Kalundborg, a double ethanol column was to be installed. We were tasked with manufacturing, delivering and installing the piping package according to the supplier’s drawings, as well as assembling associated equipment such as pumps, heat exchangers, valves, evaporators, condensers, coolers and compressors.Read more
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Installation and assembly, Prefabrication, Welding400 welds – zero defects…Over several phases, Jernbro has carried out major assignments involving pre-insulated pipes for industrial customers. In 2023 and 2024, we delivered a total of more than two kilometres of pipe in the materials PE100, 316L and SAF2507. The data below is from the most recently completed project in 2025.Read more
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Construction and engineering, Installation and assemblyExperience with longer underground pipeline runsOver the years, Jernbro has built solid experience in establishing longer underground pipelines for various media. For Veidekke, we established a 910-metre extension of a natural gas pipeline and carried out two separate 800-metre petrol and diesel pipelines. In addition, we have installed several kilometres of piping internally at power plants—in complex environments with confined space conditions and strict safety requirements.Read more
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Maintenance, Solutions, Turnaround and shutdownTurnaround without compromiseIn 2025, Jernbro carried out TAR 25 at Equinor’s refinery in Mongstad, Norway – one of the most extensive and technically demanding turnarounds at the facility in recent years. The project included mechanical work, piping and welding on critical process systems and equipment, and was executed in a complex, operations-critical environment.Read more