Product Overview
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The SWM series internal/external submerged arc longitudinal & circumferential seam automatic welding machine is mainly used for automatic welding of internal longitudinal seams, external longitudinal seams, and butt circumferential seams of pipelines and pressure vessel shells. The equipment consists of a cross-type cantilever welding machine, a driven welding rotator, a micro submerged arc welding head and SAW power source, a vision system, etc. Equipped with a micro SAW welding head, it can extend into the inside of pipes and vessels with a minimum inner diameter of Φ300 to perform internal longitudinal or circumferential seam welding. The welding formation on the inside can then be viewed on the operation panel via the vision system, offering extremely high operating convenience and welding stability.
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Welding Quality
Strict process standards ensure the reliability of every weld
- Passed inspection： Good welding quality; the weld seam passes RT/UT inspection;
- Mechanical properties： Meets requirements for pressure testing or mechanical property tests such as impact, tensile, and bending;
- Good appearance： Beautiful weld formation, with no defects such as porosity, undercut, cracks, slag inclusions, incomplete penetration, or lack of fusion.
Product Specifications
Overview of model specifications and technical performance indicators
| Item | Parameter Details |
|---|---|
| Workpiece Specifications | Inner diameter ≥Ф300mm; outer diameter customized as required |
| Applicable Materials | Carbon steel, alloy steel, stainless steel, etc. |
| Applicable Workpiece Seams | Internal longitudinal seams, external longitudinal seams, internal circumferential seams, and external circumferential seams of pipelines and pressure vessels |
| Welding Process | Fine-wire submerged arc welding |
| Welding Method |
Workpiece stationary; cantilever telescoping drives the micro submerged arc welding head to move for internal/external longitudinal seam welding
Workpiece rotating; welding torch positioned at the internal/external welding position for circumferential seam welding
|
| Basic Equipment Configuration | Cross-type cantilever welding machine + welding rotator + micro submerged arc welding head + submerged arc welding power source + integrated SAW flux delivery & recovery unit + weld seam vision system + CNC control system |
※Due to continuous product iterations and upgrades and different operating conditions across industry users, the configuration and performance parameters shall be subject to the product ordered.
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