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Submerged-Arc Final Welding Stands are used in the Two-Step Production Process for the manufacture of spiral pipes. 
The pipes provisionally welded in the Spiral Pipe Forming and Tack-Welding Machine are then in the second process stage finally welded on up to five separate stands, whereas the multi-wire submerged-arc welding of the inside and outside welding seam takes place simultaneously.
The welding carried out on the Spiral Pipe Forming and Tack-Welding Machine is only a provisional welding seam, which is melted completely during the submerged-arc final welding.
Technical Data:
see specification under Spiral Pipe Forming and Tack-Welding Machines
Features of the Submerged-Arc Final Welding Stands
 | Exact transport of the provisionally welded spiral pipes |
| | by orthogonal conveyors |
| Automatic tracking system with TV monitoring for the inside |
| | and outside welding heads |
| Welding-data recording system |
| The automatic production sequence from loading the |
| | provisionally welded pipes to the finished pipes leads to stable production conditions at a consistently good quality level. |
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