The MSHW-I Series represents the next generation of horizontal tank
welding machines, featuring integrated high-precision wire
oscillation for superior weld bead control and quality. Designed
for critical applications demanding flawless X-ray quality welds or
welding of thicker materials requiring wide beads, this system
offers unparalleled control over the welding arc. Its advanced
control system allows fine-tuning of oscillation parameters for
optimal fusion and penetration profiles. Key Specifications: Welding Process | Primarily Submerged Arc Welding (SAW), optimized for oscillation | Tank Diameter Range | 8 meters (26 ft) to 60 meters (197 ft)+ | Travel Speed | 100 - 600 mm/min (4 - 24 in/min), precise control | Drive System | High-torque servo-driven crawlers with strong magnetic adhesion
(e.g., 15,000 N / 3370 lbf) | Oscillation System | Programmable digital servo oscillation | Welding Head Adjustment | Motorized vertical & horizontal fine adjustment via remote
control | Control System | Advanced touchscreen HMI with data logging. Pre-programmed weld
procedures. Full remote operation capability | Power | 480V 3-phase | Compatibility | Interfaces with high-performance SAW power sources and heavy-duty
wire feeders |
Key Features: Precision Wire Oscillation: Enables wider beads, excellent sidewall fusion, uniform
penetration, and smooth bead contour – essential for high-quality,
defect-free welds (X-ray quality). Optimized for Thick Plate: Ideal for welding shell sections exceeding 25mm (1")
thickness in a single pass or fewer passes. Superior Process Control: Digital control over all parameters (travel speed,
oscillation width/freq/dwell, voltage, wire feed) ensures
repeatability. Reduced Welding Time: Wider beads reduce the number of passes required for thick
sections. Improved Weld Properties: Better heat distribution and fusion profile enhance
mechanical properties and reduce distortion. Enhanced Operator Interface: Intuitive touchscreen and remote control simplify operation
and monitoring from a safe distance. Data Logging: Records weld parameters for quality assurance and
traceability. Robust Magnetic Adhesion: Ensures reliable operation on vertical surfaces, even with
vibration.
Application Scenarios: Fabrication of high-integrity storage tanks for LNG, LPG, cryogenic services, or highly toxic chemicals requiring stringent weld quality standards (e.g., ASME Sect
VIII Div 1/2, API 620 Appendix Q/R). Welding of thick-walled pressure vessels and reactors in the oil & gas and petrochemical industries. Construction of nuclear containment vessels or penstocks demanding ultra-high weld integrity. Critical infrastructure tanks where weld reliability is paramount (e.g., strategic fuel
reserves). Applications requiring minimal post-weld grinding due to superior bead appearance.
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