Welding Services

Welding – TIG, MIG/MAG, certified to ISO 3834-2

Douna Machinery B.V. offers broad welding expertise for high-quality parts, structures and assemblies. We carry out welding work for a wide range of clients in sectors including machine building, energy, offshore, industry and special projects.

Our strength lies in combining craftsmanship, technical preparation and practical manufacturability. From the very first assessment, we consider material selection, welding sequence, distortion risks, tolerances, post-processing and the requirements placed on the final product. This ensures a reliable welding process and an end result that suits the client's application.

We work according to the welding processes described in NEN-EN-ISO 4063. At Douna, the base processes we apply include:

111 – Manual metal arc welding (MMA)
Suitable for robust welded joints and a wide range of structural applications.

131 – MIG welding
Gas metal arc welding with solid wire under the protection of an inert gas.

135 – MAG welding
Gas metal arc welding with solid wire under the protection of an active gas.

141 – TIG welding
Welding with a tungsten electrode under inert gas, using solid wire or rod.

Douna Machinery B.V. is certified to ISO 3834-2 and EN 1090. This allows us to safeguard quality, reproducibility and traceability throughout our welding processes, making us a reliable partner for clients with high demands on structural safety, welding quality and documentation.