Product novelty 28. July 2025
Fully automated welding process for manufacture of stainless steel boilers with heat exchanger
With our circumferential seam welding stations for shell-bottom-manufacturing, you can join the top and bottom with attachments from upstream production - including heat exchanger - to the schell in a fully automated process. Joining, edge detection, tacking, welding and seam testing all take place in a single process. Depending on the material and design, different lines with possible internal gas flushing are available.
The shell production can be integrated upstream by longitudinal seam welding from the coil to the shell.
Your advantages with our production steps
in longitudinal seam welding from the coil to the jacket
> Cut to length with laser: clean cutting edges thanks to laser shears for duplex steels etc., no set-up and wear of mechanical shears when cutting to length
> Laser cutting of holes for later connections: tool-/equipment-free and flexible fixing of the holes
> Roll forming and longitudinal seam welding: Material savings thanks to the production of tubes in sheet thicknesses of 0.8 - 1.5 mm, changing the diameter during round bending without changing parts or set-up, less deformation on the shell due to lower heat exposure during laser welding of the longitudinal seam
> Laser trimming of edges: ideal preparation for the slim, high-quality design of the circular seam with laser-only
in circumferential seam welding for shell-to-bottom production
> Assembly shell with bottom and top: fully automated joining line
> Laser welding of bottom and top under shield gas: higher productivity due to possible laser welding speeds of up to 6 m/min, significant reduction in rejects, as exact butt weld seams without leaks and therefore no reworking in the T-joint area, cost savings compared to conventional welding processes (e.g. MAG), as laser welding generally does not require process consumables such as filler wire
We implemented this system technology:
Cycle times 15 – 90 sec
Wall thicknesses 0,8 – 1,5 mm
Laser only
TIG/Hybrid
The shell production can be integrated upstream by longitudinal seam welding from the coil to the shell.
Your advantages with our production steps
in longitudinal seam welding from the coil to the jacket
> Cut to length with laser: clean cutting edges thanks to laser shears for duplex steels etc., no set-up and wear of mechanical shears when cutting to length
> Laser cutting of holes for later connections: tool-/equipment-free and flexible fixing of the holes
> Roll forming and longitudinal seam welding: Material savings thanks to the production of tubes in sheet thicknesses of 0.8 - 1.5 mm, changing the diameter during round bending without changing parts or set-up, less deformation on the shell due to lower heat exposure during laser welding of the longitudinal seam
> Laser trimming of edges: ideal preparation for the slim, high-quality design of the circular seam with laser-only
in circumferential seam welding for shell-to-bottom production
> Assembly shell with bottom and top: fully automated joining line
> Laser welding of bottom and top under shield gas: higher productivity due to possible laser welding speeds of up to 6 m/min, significant reduction in rejects, as exact butt weld seams without leaks and therefore no reworking in the T-joint area, cost savings compared to conventional welding processes (e.g. MAG), as laser welding generally does not require process consumables such as filler wire
We implemented this system technology:
Cycle times 15 – 90 sec
Wall thicknesses 0,8 – 1,5 mm
Laser only
TIG/Hybrid
Weil Technology GmbH
Contact
Mr. Nikolas Meyer