Main Features
Intuitive Digital Interface: Simplifies parameter setup and day-to-day operation.
Adjustable Arc Characteristics: Tailor arc behavior to suit a wide range of welding conditions.
Independent Base Current & Voltage Control: Fine-tune each setting separately for smoother weld starts and transitions.
Built-In Gas-Flow Check: Quickly verify and adjust shielding gas flow before welding.
Automatic Protection: Shuts down on overheating or low-voltage input to ensure stable, worry-free performance.
Extended Terminal Spacing: More room between output connectors for easier cable routing on busy job sites.
Stick Welding Mode: Switch seamlessly to MMA stick welding when needed.
Product Applications
CO₂/MAG welding of carbon steel and its alloys
Structural steel fabrication in building and bridge projects
Heavy-equipment and construction machinery manufacturing
On-site maintenance and repair in industrial environments
Share:
Item | Unit | Model | |
NB-350MK | NB-500MK | ||
Input Power | V/Hz | 3~380±15% 50/60Hz | |
Rated Input Capacity | KVA | 17.8 | 26.3 |
Rated Input Current | A | 27 | 40 |
Rated Output Current | A | 350 | 500 |
Rated Output Voltage | V | 31.5 | 39 |
Rated Open Circuit Voltage | V | 69 | 83 |
Rated Duty Cycle | 60% (40℃) | ||
Efficiency | 87% | 89% | |
Power Factor | 0.73 | 0.92 | |
Output Current Adjust Range | A | 40~350 | 60~500 |
Output Voltage Adjust Range | V | 14~40 | 14~50 |
Wire Feeding Speed Adjust Range | m/min | 1.5~20 | |
Suited Wire Diameter | mm | Φ0.8,Φ1.0,Φ1.2 | Φ1.0,Φ1.2,Φ1.6 |
Cooling Mode | Air Cooling | ||
Insulation Grade | F | ||
Ingress Protection | IP21S | ||
Dimension (L×W×H) | mm | 520×295×550 | 560×295×570 |
Net Weight | Kg | 28 | 32 |