Machine factory in Enschede, since 1992

Delwi Groenink Machinefabriek

04 — WELDING

Certified welding, from custom work to series production


From complex welded structures to serial welding. With experienced welders, modern welding robots, and certified processes, Delwi realizes high-quality welded structures for machine building, industry, and OEMs.

Contact us directly on (+31) 053 428 56 50

Our vision on welding

Craftsmanship and technology come together

High-quality welding requires craftsmanship, precision, and a controlled production process. In our welding shop, we combine experienced welders with modern welding robots and certified processes. This allows us to realize both complex custom constructions and recurring series with consistent and reliable quality.

Home - 04 Lasserij Delwi Groenink Machinefabriek

Certified welding

Welding according to EN ISO 3834-2 for demonstrably assured quality. Welding up to 50 m.

Robot welding

Automated welding for high reproducibility and consistent quality.

Manual welding

Craftsmanship for custom work, complex connections, and flexible welding.

0-Span system

Jig system developed by Delwi that allows multiple parts to be robotically welded simultaneously.

Craftsmanship and automation under one roof

Our welding capabilities

Within our welding shop, we combine manual and robotic welding for both custom and serial production. By selecting the right welding method for each product, we achieve an efficient production process with consistent quality. Furthermore, our welding shop connects directly to sheet metal working, machining, coating, and assembly.

Afbeelding - Lasserij - Robotlassen Delwi

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Robot welding

Consistent quality through smart automation. With modern welding robots, we produce welded structures quickly, accurately, and reproducibly. Robotic welding is ideally suited for recurring products and series where consistent welding quality is paramount.

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For automated welding, Delwi has four Cloos robotic welding systems: two Cloos GLC 353 systems, a Cloos QRC 350-E, and a Cloos R450. Thanks to various configurations, workstations, and manipulators, diverse welded structures can be processed automatically.

The largest installations are suitable for products up to 6000 × 3000 × 3000 mm and 5000 kg. For serial welding, we also utilize our own 0-Span system, which allows multiple parts to be efficiently positioned and robotically welded.

Afbeelding - Lasserij - Handlassen Delwi

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Manual welding

Craftsmanship for flexible and complex welding. Not every structure lends itself to automation. Our experienced welders provide manual welding for custom steel structures, one-offs, and complex constructions where flexibility and craftsmanship are essential.

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Manual welding offers the flexibility to create a wide range of structures, materials, and connections. Our welders work according to established welding procedures and possess the knowledge and experience to reliably execute even more complex assemblies.

We work with welding processes 135 (MAG welding with solid wire) and 138 (MAG welding with flux-cored wire), among others.

Afbeelding - Lasserij - Gecertificeerd Laswerk Delwi

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Certified welding

Quality demonstrably assured. Our welding is certified according to EN ISO 3834-2:2021, the standard for comprehensive quality requirements in the fusion welding of metals. As a result, quality is not only visible in the end product but demonstrably assured throughout the entire welding process.

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The certification covers welding on S235 to S355 (material group 1.1–1.2) and S690QL (material group 3.1), with welding processes 135 and 138.

From welding procedures and qualified personnel to quality control and documentation: the quality of our welding is systematically monitored throughout the production process.

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Curious about the machines and welding robots behind our welder's shop?

View our complete machine park and discover our technical capabilities and production capacities.

View the machinery

Custom welding

Everything for high-quality welded constructions

Large structures

Robotic welding of workpieces up to 6000 × 3000 × 3000 mm and 5000 kg.

Custom-made and series

From complex single pieces to efficiently produced recurring welding.

Proprietary 0-Span system

Tooling developed by Delwi for the more efficient use of robotic welding.

Technical materials

Experience with, among others, S235–S355 and high-strength steel S690QL.

Direct flow

From sheet metal working and machining to welding, coating, and assembly within a single factory.

Conscious production

Efficient production with an eye on tomorrow

With 2,444 solar panels, smart energy systems, and multiple disciplines under one roof, we are continuously working on a more efficient production process. Moreover, by combining production processes internally, we limit unnecessary transport movements between different suppliers.

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