MMA400ST
Power Up to 300A. Weld Heavy. Weld Anywhere.
Technical Specifications
| Input Voltage | 230V ±10% / 415V ±10% |
| Output Current | 200A @ 230V / 300A @ 415V |
| Duty Cycle | 60% @ 300A |
| Electrode Size | 1.6 - 5.0mm |
| Cooling | Dual Ball Bearing Fan |
| Protection | Overheat, Overcurrent |
| Weight | ~7.2kg |
| Dimensions | 320 x 140 x 240mm |
Key Features
- Dual voltage powerhouse: 200A at 230V, up to 310A at 415V
- Professional-grade for industrial applications
- Advanced IGBT inverter for energy efficiency
- Smart welding: Hot Start, Anti-Stick, Arc Force
- Rugged and reliable for harsh environments
Applications
Quick Facts
| Model | MMA400ST |
| Input Voltage | 230V ±10% / 415V ±10% |
| Output Current | 200A @ 230V / 300A @ 415V |
| Duty Cycle | 60% @ 300A |
| Weight | ~7.2kg |
| Application | Steel Fabrication |
| OEM Available | Yes (MOQ 50 units) |
Detailed Description
The powerhouse of our MMA lineup — delivering 200A on 230V and up to a formidable 310A on 415V three-phase power.
Designed for heavy-duty fabrication, structural steelwork, and industrial maintenance where reliability is non-negotiable. The rugged steel chassis and oversized components ensure sustained performance under the most demanding conditions.
Advanced IGBT inverter technology combined with Hot Start, Arc Force, and Anti-Stick protection delivers consistent, high-quality welds on thick plate and structural steel — shift after shift.
Frequently Asked Questions
The MMA400ST supports 230V ±10% / 415V ±10%. This makes it suitable for various countries and power supply conditions.
The MMA400ST delivers 200A @ 230V / 300A @ 415V. This range provides flexibility for different welding/cutting requirements.
The MMA400ST has a duty cycle of 60% @ 300A. This means it can operate continuously at the rated current for the specified time before requiring cooling.
The MMA400ST is compatible with electrodes from 1.6 - 5.0mm. This covers most common welding applications.
The MMA400ST weighs approximately ~7.2kg, making it highly portable and easy to transport between job sites.
Yes, the MMA400ST is generator-friendly thanks to its dual voltage compatibility and IGBT inverter technology. It can operate reliably on generator power, which is ideal for field work and remote locations.
Yes, the MMA400ST features advanced IGBT inverter technology. This ensures stable arc performance, energy efficiency, and longer service life compared to traditional MOSFET-based machines.
Yes, the MMA400ST includes built-in Hot Start function. This provides additional current at the start of welding to help strike the arc easily, especially useful for beginners and with difficult-to-start electrodes.
Our standard MOQ is 10 units for the MMA400ST. For OEM/private label orders with custom branding, MOQ is 50 units. Contact us for detailed pricing and terms.
Standard delivery time is 7-15 days for in-stock models. For OEM orders with custom packaging or branding, delivery is 20-30 days. We ship from Qingdao Port, China.
We offer 2 years warranty for the MMA400ST. Spare parts and technical support are provided throughout the warranty period. We also maintain spare parts inventory for post-warranty service.
Related Products
MMA300ST
One Welder. Two Voltages. Every Job Done Right.
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