These fan-cooled, 2PCBS design IGBT inverter power sources support MMA and scratch-start TIG welding.
The welder automatically outputs optimal start and stop parameters according to the preset welding current.
The booster circuit supplies extra voltage to realize excellent arc ignition and welding performance for cellulosic electrodes.
Boasting a broad current range and powerful welding capacity, this DC arc welder is compatible with general, stainless steel, cellulosic and low-hydrogen electrodes.
Hot Start, ARC FORCE and ANTI-STICK functions help ignite tough electrodes, adjust arc dynamics and release stuck welding rods easily.
This machine can perform TIG welding with accurate current control when equipped with an optional TIG torch, gas regulator and gas cylinder.
The built-in VRD (Voltage Reduction Device) lowers the open-circuit voltage to a safe level before welding starts to protect operators.
Designs:
| Parameter | UNMINI‑ 140BIT | UNMINI‑ 160BIT | UNMINI‑ 200BIT | UNMINI‑ 250BIT |
| Mains Voltage (V) | 220 | 220 | 220 | 220 |
| Frequency (HZ) | 50/60 | 50/60 | 50/60 | 50/60 |
| No‑load Voltage (V) | 65 | 65 | 65 | 65 |
| Rated Input Capacity (KVA) | 5.5 | 6.0 | 7.0 | 9.5 |
| Insulation Class | F | F | F | F |
| Output Current (A) | 20‑140 | 20‑160 | 20‑200 | 20‑250 |
| Rated Duty Cycle (%) | 60 | 60 | 60 | 60 |
| Dimensions (CM) | 28*11.5*23 | 28*11.5*23 | 28*11.5*23 | 28*11.5*23 |
| Weight (KG) | 2.5 | 2.7 | 3.0 | 3.0 |
| Parameter | UNMINI‑ 140PIT | UNMINI‑ 160PIT | UNMINI‑ 200PIT | UNMINI‑ 250PIT |
| Mains Voltage (V) | 220 | 220 | 220 | 220 |
| Frequency (HZ) | 50/60 | 50/60 | 50/60 | 50/60 |
| No‑load Voltage (V) | 65 | 65 | 65 | 65 |
| Rated Input Capacity (KVA) | 5.5 | 6.0 | 7.0 | 9.5 |
| Insulation Class | F | F | F | F |
| Output Current (A) | 20‑140 | 20‑160 | 20‑200 | 20‑250 |
| Rated Duty Cycle (%) | 60 | 60 | 60 | 60 |
| Dimensions (CM) | 28*11.5*23 | 28*11.5*23 | 28*11.5*23 | 28*11.5*23 |
| Weight (KG) | 2.5 | 2.7 | 3.0 | 3.0 |
| Parameter | UNMST‑ 140T | UNMST‑ 160T | UNMST‑ 200T | UNMST‑ 250T |
| Mains Voltage (V) | 220 | 220 | 220 | 220 |
| Frequency (HZ) | 50/60 | 50/60 | 50/60 | 50/60 |
| No‑load Voltage (V) | 65 | 65 | 65 | 65 |
| Rated Input Capacity (KVA) | 5.5 | 6.0 | 7.0 | 9.5 |
| Insulation Class | F | F | F | F |
| Output Current (A) | 20‑140 | 20‑160 | 20‑200 | 20‑250 |
| Rated Duty Cycle (%) | 60 | 60 | 60 | 60 |
| Dimensions (CM) | 28*11.5*23 | 28*11.5*23 | 28*11.5*23 | 28*11.5*23 |
| Weight (KG) | 2.5 | 2.7 | 3.0 | 3.0 |
Optimizes arc ignition performance for hard-to-strike welding electrodes.
Adjustable to select optimal dynamic characteristics of welding arc.
Automatically lowers current for quick release when electrode sticks to workpiece.
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.
Compact lightweight structure, easy to carry and suitable for outdoor operation.
Low idle power consumption, improves energy efficiency during long working hours.
individual packing，6pcs/ctn
individual packing，6pcs/ctn
