Product Introduction:
The EGW Series revolutionizes vertical welding for ultra-thick storage tanks
(e.g., LNG, LPG, cryogenic vessels). Featuring dual-wire tandem EGW
technology, it achieves deposition rates exceeding 25 kg/h (55
lbs/h), welding plates up to 100mm thick in a single pass.
Integrated oscillation and real-time seam tracking ensure flawless
fusion in critical applications requiring ASME Section VIII or API
620 compliance. Ideal for shipyards and heavy fabrication shops. Key Specifications: | Parameter | Specification |
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| Welding Process | Tandem Electrogas Welding | | Plate Thickness | 20 mm – 100 mm (0.79" – 3.94") | | Deposition Rate | 22 – 30 kg/h (48 – 66 lbs/h) | | Wires | 2 x 2.4 mm or 3.2 mm | | Oscillation | ±30 mm (servo-controlled) | | Travel Control | Laser seam tracking + Encoder feedback | | Voltage/Current | 35–50V DC / 2x 400–750A | | Gas System | Dual-zone gas shielding (Ar/He/CO₂) | | Data Logging | Weld parameter recording (ISO 3834) | | Power Supply | 480V AC, 3-Phase, 200 kVA |
Key Features: Industry-Leading Speed: 2x productivity vs. standard EGW for thick sections. Deep Penetration: Dual-arc synergy ensures full fusion on 100mm plates. Active Arc Control: Independent parameter adjustment for each wire. Zero-Defect Guarantee: Auto-correction via seam tracking & oscillation. Remote Monitoring: Real-time weld analytics via IoT interface. Cryogenic-Ready: Optimized for 9% Ni steel, stainless steels, and aluminum
alloys.
Application Scenarios: LNG/LPG storage tanks (API 620, Appendix Q). Cryogenic vessels (-196°C service). Thick-wall reactor shells in petrochemical plants. Nuclear waste containment tanks. Offshore platform leg sections & gravity-based structures.
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