These heavy-duty, fan-cooled SiC inverter power sources are specially designed for MMA welding.
The welder automatically sets ideal start and stop parameters according to the preset welding current.
Its booster circuit supplies extra voltage to deliver excellent arc ignition and welding effect for cellulosic electrodes.
Featuring broad current adjustment and strong welding capacity, this DC arc welder works with multiple electrode types for diverse jobs.
The Hot Start function greatly helps ignite the arc even when using hard-to-start welding rods.
ARC FORCE and ANTI-STICK features optimize arc dynamics and release the electrode easily if it sticks to the workpiece.
Advanced SiC technology endows this welding machine with consistent quality and outstanding overall performance.
Designs:
| Parameter | UNMMA‑ 400BSIC | UNMMA‑ 500BSIC |
| Mains Voltage (V) | 380 | 380 |
| Frequency (HZ) | 50/60 | 50/60 |
| No‑load Voltage (V) | 75 | 75 |
| Rated Input Capacity (KVA) | 18.0 | 25.0 |
| Insulation Class | F | F |
| Output Current (A) | 40‑400 | 40‑500 |
| Rated Duty Cycle (%) | 60 | 60 |
| Dimensions (CM) | 52*23*39 | 52*23*39 |
| Weight (KG) | 15.0 | 16.0 |
| Parameter | UNMMA‑ 400PSIC | UNMMA‑ 500PSIC |
| Mains Voltage (V) | 380 | 380 |
| Frequency (HZ) | 50/60 | 50/60 |
| No‑load Voltage (V) | 75 | 75 |
| Rated Input Capacity (KVA) | 18.0 | 25.0 |
| Insulation Class | F | F |
| Output Current (A) | 40‑400 | 40‑500 |
| Rated Duty Cycle (%) | 60 | 60 |
| Dimensions (CM) | 52*23*39 | 52*23*39 |
| Weight (KG) | 15.0 | 16.0 |
| Parameter | UNMMA‑ 400MSIC | UNMMA‑ 500MSIC |
| Mains Voltage (V) | 380 | 380 |
| Frequency (HZ) | 50/60 | 50/60 |
| No‑load Voltage (V) | 75 | 75 |
| Rated Input Capacity (KVA) | 18.0 | 25.0 |
| Insulation Class | F | F |
| Output Current (A) | 40‑400 | 40‑500 |
| Rated Duty Cycle (%) | 60 | 60 |
| Dimensions (CM) | 52*23*39 | 52*23*39 |
| Weight (KG) | 15.0 | 16.0 |
Optimizes arc ignition performance for hard‑to‑strike welding electrodes.
Adjustable to select optimal dynamic characteristics of welding arc.
Intelligent thermal protection prevents machine damage caused by overheating.
Efficient cooling system accelerates heat dissipation and extends service life.
Safeguards internal components against unstable input voltage surges.
High conversion rate, less power loss and improves welding working performance.
Low idle power consumption, improves energy efficiency during long working hours.
individual packing，6pcs/ctn
individual packing，6pcs/ctn
