Versatile electrode compatibility
Supports acidic, alkaline, stainless steel, and low-hydrogen electrodes for maximum flexibility across different welding applications and material requirements.
Full-Digital IGBT Inverter MMA Welding Machine
ST Series
The Megmeet ST Series is a robust MMA (stick) welding machine built for heavy industrial applications. With output up to 630A at 100% duty cycle, wide ±25% input voltage tolerance, and stable operation at 100m cable extension, it excels in petrochemical, power, shipbuilding, and steel structure construction.
Up to 630A output
Available in 400A, 500A, and 630A variants. The ST500 and ST630 are rated at 100% duty cycle for continuous industrial welding without interruption.
Wide voltage tolerance
Accepts input voltage fluctuation of ±25%, ensuring reliable performance in remote job sites and developing regions with unstable power grids.
100m cable stability
Maintains stable welding arc and output even with welding cables extended to 100 meters, ideal for large construction sites and tall structures.
Features & Enhancements
VRD electric shock protection
Built-in Voltage Reduction Device (VRD) provides electric shock protection for operators, meeting safety standards required for confined space and high-risk welding environments.
Smart management & IoT
Features U-disk firmware upgrades, RFID card linking for welder identity management, and optional SMARC IoT integration for welding data monitoring and production reporting.
Specifications & parameters
Rated output current400A
Rated output voltage34V
No-load voltage63V
Rated input power17.1KVA / 16.3KW
Current range30–400A
Duty cycle60% @ 400A
Power factor0.95
Efficiency88.5%
Dimensions684×320×580mm
Weight34kg
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