Main Features
Fast Arc Striking & Low Spatter: Instant arc ignition, minimal spatter, rapid wire-feed response, and excellent spot-weld performance.
SMT & Soft-Switch Technology: Modern surface-mount circuit design with efficient soft-switch power conversion.
Stable Feedback Control: Unique arc voltage/current feedback circuit ensures smooth, consistent welding.
Ball-Eliminating Function: Prevents wire tip buildup, allowing feed speeds up to X m/min.
Adjustable Arc Profile: From “soft” to “hard” to suit different welding techniques.
Model NB-250/31SLB: External wire feeder with on-feeder current and voltage controls for easy operation.
Model NB-250/31SLT: Built-in wire feeder with wheels and optional gas-cylinder frame for true plug-and-play mobility.
Automatic Overheat Protection: Shuts down safely if internal temperatures rise too high.
Product Applications
Works with 0.8 mm and 1.0 mm solid wire on low-carbon, medium-carbon, and alloy steels
Ideal for welding in motor, motorcycle, and furniture manufacturing industries
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| Item | Unit | Model | |||
| NB-250LB | NB-315LB | NB-250LT | NB-315LT | ||
| Input Power | V/Hz | 3~380±15% 50/60Hz | |||
| Rated Input Capacity | KVA | 10.5 | 13.2 | 10.5 | 13.2 |
| Rated Input Current | A | 16 | 20 | 16 | 20 |
| Rated Output Current | A | 250 | 315 | 250 | 315 |
| Rated Input voltage | V | 26.5 | 29.8 | 26.5 | 29.8 |
| Rated Open Circuit Voltage | V | 68 | 66 | ||
| Rated Duty Cycle | 35% (40℃) | ||||
| Efficiency | 85% | 86% | 85% | 86% | |
| Power Factor | 0.74 | 0.85 | 0.74 | 0.75 | |
| Output Voltage Adjust Range | V | 15~32 | |||
| Wire Feeding Speed Adjust Range | m/min | 1.5~28 | |||
| Suited Wire Diameter | mm | Φ0.8, Φ1.0 | |||
| Cooling Mode | Air Cooling | ||||
| Insulation Grade | F | ||||
| Ingress Protection | IP21S | ||||
| Dimension(L×W×H) | mm | 520×260×495 | 640×300×645 | ||
| Net Weight | Kg | 20 | 21 | 38 | 39 |