555 MMA-400 PRO — MMA Inverter Welder
555 MMA-400 PRO — MMA Inverter Welder
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555 MMA-400 PRO DC inverter stick welder from the 555 PRO value range, with adjustable Arc Force and an IGBT platform for demanding fabrication and site work. Stocked in the UAE and backed by Towam's in-house service and repair.
Key features
- MMA (stick) DC welding with IGBT inverter control
- Adjustable Arc Force (1–100) for control across electrode types
- Digital LED display with thermal and power indicators
- Runs on a standard AC 220V single-phase supply
- Honest, plate-stated output and duty cycle — no inflated numbers
Specifications
| Brand / range | 555 PRO |
| Model | MMA-400 PRO |
| Process | MMA (stick), DC, IGBT |
| Arc Force | Adjustable, 1–100 |
| Rated output | 30A – 180A |
| Duty cycle | 180A @ 35% · 139A @ 60% · 99A @ 100% |
| Open-circuit voltage (Uo) | 56V |
| Input | AC 220V, single phase |
| Max input current | 41A (I1max) / 17.5A (I1eff) |
| Protection class | IP21S |
| Insulation class | F |
| Cooling | Forced air |
| Standard | GB/T 15579.1-2013 |
| Carton size | 515 × 315 × 405 mm |
| In the box | Machine, welding face shield, electrode holder + lead, earth clamp + lead, manual |
Inside every 555
Selected 555 Industrial and premium models may include upgraded components such as Toshiba IGBT modules, RICHIP control chips, 105°C capacitors, and IP23S protection. Exact components, IP rating, warranty, and duty-cycle details depend on the specific model.
Why professionals choose 555 →
Need dealer or bulk pricing?
End-users can add to cart and check out. Dealers and bulk buyers — apply for a trade account or request a quote on WhatsApp. Downloadable spec sheet available on request.
Warranty & Service
Warranty & Service
Warranty terms vary by model — confirm this machine's exact warranty with our team. All warranty and repair work is handled locally by Towam's in-house UAE service department.
Documents & Downloads
Documents & Downloads
Datasheets, spec sheets and manuals are available on request. Message us on WhatsApp with your model and we'll send the documents for this machine.
Ask on WhatsApp
Ask on WhatsApp
Questions about this machine? Talk to our team on WhatsApp +971 50 767 0682 or email sales@towam.ae.
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