Electron beam welding

Pronexos has 50 years of experience in electron beam welding (EBW) — a welding process that uses a concentrated beam composed primarily of high-velocity electrons to fuse the joint. The process is used without shielding gas and without the application of pressure.

The process

A high energy and extremely focused beam of electrons is used to join metals, with no filler metal required. This approach results in a small heat-affected zone with minimal distortion, while the bulk of the assembly remains cold and stable.

The welds produced are narrow and deep (up to 30 mm) and as it takes place in a vacuum, we can achieve almost pore-free welds. Computer controls ensure minimal operator dependence and a high degree of reproducibility.

EBW lets us weld oxygen-greedy materials and materials with high thermal conductivity. Pronexos can weld a range of materials, including – but not limited to – reinforced steel, stainless steel, aluminium, copper, titanium, zirconium, tantalum and niobium.


  • Deep penetration
  • Near parent metal strength
  • Narrow fusion zone
  • Minimum component distortion
  • Precision repeatability
  • High accuracy welding
  • Automated

Our capabilities

Licensed EB welding machines: EB1’s chamber is 2800 x 1210 x 1000 mm, EB2’s chamber is 650 x 850 x 640 mm and EB3’s chamber is 2400 x 1300 x 1400mm.

  • High volume production
  • Metallurgical laboratory for quality inspections
  • Functional (leak) testing
  • Materials laboratory, and engineering and R&D centers

For more information, download our EB welding brochure.




Frank Wissink

Get in touch with our sales team to enquire about any of our products.

+31 (0) 54654 4030