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Digital Double Pulse 250A Gas Shielded Welding Machine 220V/380V - China Suppliers & Factory Match for Aluminum Welding
Detailed Information
What Is the Importance of MIG Welding in Manufacturing?
MIG welding is valuable because it is fast, creates a strong joint, and can weld thick metal pieces together. MIG welding is also simple. Since it’s easy for first-time and experienced welders alike, there’s usually no shortage of MIG operators in the workforce.
What Is the Primary Purpose of MIG Welding?
MIG welding is used to join metal parts together. It functions to join steel, stainless steel, cast iron, and aluminum. MIG welding is used on sheet metal, pressure vessels, steel structures, pipelines, and automotive parts.
How Does MIG Welding Work?
MIG welding works by feeding a metal wire through a gun which conducts electricity from the welding machine. It generates an arc with the target material in order to melt both the metal wire and part of the joint and form a metal bond. As the wire is fed through and a molten weld pool is created, the weld is protected by a shielding gas. The shielding gas protects the weld from contaminants in the atmosphere.
Main Features
- All welding machines use new electronic components.
- IGBT inverter technology, less welding spatter and beautiful welding seams.
- Can weld aluminum, aluminum alloys, carbon steel, stainless steel and other metals.
- Accurate digital display of current and voltage preset, easy and intuitive operation.
- Dual voltage input 220V/380V automatic conversion.
- Gas shielded welding/manual welding/scratched argon arc welding, multiple functions.
- With self-locking/non-self-locking mode, greatly reducing operating intensity.
- Optional extended control cable, suitable for welding operations in narrow and high locations.
- Humanized, beautiful appearance design, more convenient to operate.

Working Connection Diagram
Product Parameters
| Model | NBM-250 | |
| Rated Input Voltage | 220V 50Hz/60Hz | 380V 50Hz/60Hz |
| Rated Input Power | 10.4Kva | 9.2Kva |
| No Load Voltage | 72V | |
| Rated Output | 250A | |
| Current Regulation | 20-250A | |
| Rated Duty Cycle | 60% | |
| Power Factor | 0.8 | |
| Insulation Class | F | |
| Shell Protection Grade | IP21S | |
| Suggested Welding Wire | aluminum wire 1.0-1.2mm / carbon steel 0.8-1.0mm | |
| Dimensions | 50*25*41cm | |
| Weight | 15KG | |
Installation Attentions
♦Input voltage: AC220V/380V, 50/60Hz
♦Ambient temperature: -10℃~+40℃
♦Input cable: ≥4mm²
♦Usage condition: No blocked on air inlet & outlet, no sunlight exposure, pay attention to dust prevention.
♦Power switch: 63A
♦Gas tank installation: Fix firmly to avoid collision and place in a cool place.
♦Output cable: ≤3m
Standard Accessories

1x Electrode Holder

1x Ground Clamp

1x Welding Mask

1x Brush/Hammer
Optional Accessories

Welding Helmet

Welding Gloves

Electrodes E6013

Lift TIG TORCH
Frequently Asked Questions
Q1: Which metals can be welded using the NBM-250 MIG welding machine?
A1: The NBM-250 is highly versatile and can weld aluminum, aluminum alloys, carbon steel, stainless steel, and various other metals.
Q2: Does this welding machine support dual voltage input?
A2: Yes, it features automatic conversion technology for dual voltage inputs of 220V and 380V, adapting to different power sources automatically.
Q3: What are the suggested welding wire specifications for the NBM-250?
A3: For optimal results, we suggest using 1.0-1.2mm wire for aluminum and 0.8-1.0mm wire for carbon steel.
Q4: What standard accessories come included with the machine?
A4: The package contains 1x Electrode Holder, 1x Ground Clamp, 1x Welding Mask, and 1x Brush/Hammer to help you start your projects immediately.
Q5: What are the installation requirements regarding ambient temperature?
A5: The machine functions best in ambient temperatures ranging from -10℃ to +40℃, with clean conditions free from direct sunlight exposure.
Q6: What welding modes are supported by this equipment?
A6: It supports multiple functions, including gas shielded welding (MIG), manual welding (MMA), and scratched argon arc welding (TIG).


