Excellent Enterprises TIG-ARC-400 Three Phase IGBT Inverter Welding Machine
The Excellent Enterprises TIG-ARC-400 Three Phase IGBT Inverter Welding Machine is engineered for heavy industrial fabrication environments where welding precision, sustained duty performance, and operational versatility are critical. Designed for demanding production applications, this 400 Amp three phase dual-process inverter welding machine combines DC TIG welding and MMA (Stick) welding capability in a single industrial platform.
Powered by advanced IGBT inverter technology, the TIG-ARC-400 delivers stable high-current output, superior thermal efficiency, and consistent arc control under prolonged operating conditions. Unlike conventional transformer-based heavy welding systems, the IGBT architecture provides faster switching response, lower internal heat generation, improved energy utilization, and enhanced long-term reliability—making it the preferred technology for continuous industrial welding operations.
Its dual-process functionality allows fabricators to switch between precision DC TIG welding for clean, controlled welds and high-deposition MMA welding for structural and repair applications, offering excellent flexibility across fabrication and maintenance workflows.
The integrated Lift TIG arc ignition system enables controlled arc initiation without high-frequency interference, making the machine suitable for industrial environments containing sensitive electronic equipment, CNC systems, or instrumentation panels.
Technical Specifications
| Specification | Details |
|---|---|
| Product Model | TIG-ARC-400 |
| Technology | IGBT Inverter |
| Input Voltage | AC 380V ±15% |
| Phase Type | Three Phase |
| Output Current Range | 20A – 400A |
| Welding Processes | DC TIG + MMA (Stick Welding) |
| Arc Ignition | Lift TIG Start |
| No Load Voltage | 70–80V |
| Duty Cycle | 60% |
| Efficiency | 85%+ |
| Electrode Compatibility | Up to 6.0mm |
| Suitable Materials | Carbon Steel, Stainless Steel, Low Alloy Steel, Cast Iron |
| Protection Features | Overvoltage / Overcurrent / Overheat / Phase Loss / Anti-Stick |
Industrial Performance Benefits
Advanced IGBT Power Architecture
IGBT inverter technology ensures superior switching performance, higher current handling capability, lower thermal stress, and improved machine durability in high-load production environments.
Dual Welding Process Flexibility
Supports both DC TIG welding for precision fabrication and MMA welding for heavy-duty structural work, reducing the need for separate equipment investment.
Stable Arc Performance Under Load
Advanced inverter control delivers smooth arc stability, better weld puddle control, cleaner penetration, and improved weld bead consistency.
Continuous Industrial Duty Operation
Designed for extended production use with intelligent thermal monitoring and automatic overload protection.
Industrial Safety Protection Systems
Integrated protection against voltage fluctuation, overcurrent, overheating, and phase imbalance ensures dependable operation in demanding industrial facilities.
Ideal Industrial Applications
Recommended for:
- Pressure vessel fabrication
- Structural steel manufacturing
- Pipeline welding and repair
- Shipbuilding and dockyard maintenance
- Heavy engineering fabrication
- Bridge construction projects
- Power plant maintenance
- Railway fabrication workshops
- EPC industrial projects
- Defence manufacturing applications
- OEM heavy equipment production
Frequently Asked Questions (SEO Friendly)
What is the TIG-ARC-400 welding machine used for?
The TIG-ARC-400 is used for heavy-duty industrial welding applications including TIG precision fabrication, structural MMA welding, pipeline fabrication, pressure vessel manufacturing, and industrial maintenance.
Is this a TIG and MMA dual-process welding machine?
Yes. The machine supports both DC Lift TIG welding and MMA stick welding, making it suitable for precision and heavy fabrication work.
Why is IGBT better than MOSFET in high-capacity welding machines?
IGBT technology handles higher voltage and sustained heavy current loads more efficiently, offering better thermal stability, durability, and performance for industrial-grade welding machines.
Is this machine suitable for continuous industrial production?
Yes. With a 60% duty cycle and industrial thermal protection, the TIG-ARC-400 is designed for prolonged workshop and production use.
What materials can be welded using TIG-ARC-400?
This machine is suitable for carbon steel, stainless steel, alloy steel, and cast iron with appropriate welding consumables.
Does this machine require three phase power supply?
Yes. The TIG-ARC-400 operates on AC 380V three phase industrial power supply.




