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Gasless 180A MIG Welder & 200A MMA Inverter Welding Machine from China Suppliers & Factory for Stable Performance
Detailed Information
● IGBT Inverter Gas Shielded Welding Machine
GMAW welding machine can perform melting electrode welding without gas protection. mainly uses the positive and negative polarity exchange,at the same time the use of FLUX core welding wire, and can use co2,as well as manual welding ,simple scratch argon arc welding function.
The rated Duty cycle refers to the amount of welding that can be done within an amount of time. It is easiest to look at your welding time in blocks of 10 Minutes and the Duty Cycle being a percentage of that 10 Minutes. If welding at 155 Amps with a 60% Duty Cycle, within a 10 Minute block of time you can weld for 6 Minutes with 4 Minutes of cooling for the welder.
● Operating Methods
- After correct installation, turn on the power switch and push the power switch in the "ON" position. Then, the power indicator light will be on and the fan inside the welder will start rotating.
- According to the actual situation of use, the adapter is connected to the corresponding position, and the ground wire is firmly connected to the workpiece.
- According to the diameter of the welding wire, select the diameter of the contact tip of the welding gun.
- According to the thickness and process of the workpiece to be welded, cooperate with the "voltage adjustment" knob and "current adjustment" knob to the corresponding position.
- "Auto" mode can be selected, at this time it is a unified adjustment, only the current needs to be adjusted, and the voltage is automatically matched.
- In the "manual" mode, the current and voltage need to be adjusted separately, and the parameters can be manually matched to achieve a good welding process.
Main Features
- All movements adopt the latest and mature IGBT full-bridge inverter technology.
- IGBT inverter technology, less welding spatter and beautiful welding seams.
- Complete undervoltage, overvoltage and current protection, safe and reliable.
- Accurate digital display of current and voltage preset, easy and intuitive operation.
- High pressure and slow wire feeding to start the arc, the arc will not burst the wire, and the arc will be closed to remove small balls.
- Constant voltage output characteristics, CO2 welding, one machine for multiple purposes.
- Humanized, beautiful appearance design, more convenient to operate.
- Three-proof design for key parts, suitable for various harsh environments, with stable and reliable operation.

Working Connection Diagram
Product Parameters
| Model | MIG-270 | MIG-280 | MIG-315 | |||
| Rated Input Voltage | 220V 50Hz/60Hz | 380V 50Hz/60Hz | 220V 50Hz/60Hz | 380V 50Hz/60Hz | 220V 50Hz/60Hz | 380V 50Hz/60Hz |
| Rated Input Power | 6.6Kva | 6.6Kva | 7.5Kva | 13Kva | 7.5Kva | 13Kva |
| No Load Voltage | 62V | 54V | 57V | 64V | 57V | 60V |
| Rated Output | 170A/22.5V | 270A/27.5V | 190A/24V | 280A/28V | 200A/24V | 315A/30V |
| Voltage Regulation | 14-30V | 14-32V | 14-32V | |||
| Rated Duty Cycle | 50% | 60% | 60% | |||
| Power Factor | 0.8 | 0.8 | 0.8 | |||
| Insulation Class | F | F | F | |||
| Shell Protection Grade | IP21S | IP21S | IP21S | |||
| Suggested Welding Wire | 0.8-1.0mm | 0.8-1.0mm | 0.8-1.0mm | |||
| Dimensions | 42.5*20*35.5cm | 50*27*50.5cm | 50*27*50.5cm | |||
| Weight | 9.0Kg | 18.5Kg | 19Kg | |||
Installation Attentions
- Input voltage: AC180-420V 50/60Hz
- Input cable: ≥4mm², length ≤3m
- Power switch: 63A
- Output cable: ≥25mm², length ≤20m
- Ambient temperature: -10℃~+40℃
- Usage condition: No blocked on air inlet & outlet, no sunlight exposure, pay attention to dust prevention.
- Gas tank installation: Fix firmly to avoid collision and place in a cool place.
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
What is the advantage of IGBT inverter technology in welding?
IGBT full-bridge inverter technology provides stable power output, reduces welding spatter, and ensures beautiful, clean welding seams. It also features automatic protection against overvoltage, undervoltage, and overcurrent.
Can this machine weld without gas protection?
Yes, the GMAW welding machine can perform gasless melting electrode welding using FLUX core welding wire by exchanging the positive and negative polarities.
What does a 60% rated duty cycle mean?
A 60% duty cycle means that in a 10-minute block, you can weld continuously for 6 minutes at the rated amperage, followed by 4 minutes of cooling time for the welder to prevent overheating.
What are the main differences between Auto and Manual modes?
In "Auto" mode, the voltage automatically matches the current adjustments you make. In "Manual" mode, you can adjust the current and voltage independently to fine-tune your parameters for specific welding processes.
What are the power and cable requirements for installation?
The machine requires an AC180-420V 50/60Hz input voltage, an input cable of ≥4mm² (length ≤3m), a 63A power switch, and an output cable of ≥25mm² (length ≤20m).





