Product Overview
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The SWM series internal & external longitudinal and circumferential seam submerged arc automatic welder is mainly used for automatic welding of internal longitudinal seams, external longitudinal seams, and circumferential (girth) seams of pipelines and pressure vessel shells. The system is composed of a cross-type cantilever welding machine, powered roller beds, ultra-compact submerged arc welding heads and submerged arc welding power source, vision system, etc. With the ultra-compact submerged arc welding head, it can extend into the interior of pipes and vessels with a minimum inner diameter of Φ300 to perform internal longitudinal or circumferential seam welding. The inner weld formation can then be viewed on the operator panel via the vision system, providing excellent operating convenience and welding stability.
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Welding Quality
Strict process standards ensure the reliability of every weld
- Inspection passed: Good welding quality; welds pass RT/UT inspection.
- Mechanical properties: Meet the requirements of pressure tests or mechanical property tests such as impact, tensile, and bend tests.
- Neat appearance: Welds have an attractive profile, free from porosity, undercut, cracks, slag inclusions, incomplete penetration, lack of fusion, and other defects.
Product Specifications
Overview of model range and technical performance indicators
| Item | Parameter details |
|---|---|
| Applicable workpiece size | Inner diameter ≥ Ф300mm; outer diameter customized to required specifications |
| Applicable materials | Carbon steel, alloy steel, stainless steel, etc. |
| Applicable workpiece weld seams | Internal longitudinal, external longitudinal, internal circumferential, and external circumferential seams of pipes and pressure vessels |
| Welding process | Fine-wire submerged arc welding |
| Welding mode |
Workpiece stationary; the telescopic boom drives the ultra-compact submerged arc welding head to move for internal and external longitudinal seam welding
Workpiece rotating; the welding torch is positioned at the internal/external weld location of the workpiece for circumferential seam welding
|
| Basic equipment configuration | Cross-type cantilever welding machine + welding roller beds + ultra-compact submerged arc welding head + submerged arc welding power source + integrated flux feeding and recovery unit + weld vision system + CNC control system |
※ As products are continuously upgraded and operating conditions vary among users in different industries, the actual configuration and performance parameters are subject to those confirmed at the time of order.
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