1. Introduction
The HITBOX MIG200III is a versatile 7-in-1 multi-process welding machine designed for a wide range of welding applications, from home DIY to professional engineering. It features advanced IGBT inverter technology and synergy control for ease of use, making it suitable for both beginners and experienced welders. This manual provides essential information for the safe and effective operation, setup, and maintenance of your welding machine.
2. Safety Information
Always prioritize safety when operating welding equipment. Failure to follow safety precautions can result in serious injury or death.
- Wear appropriate personal protective equipment (PPE), including a welding helmet with proper shade, flame-resistant clothing, welding gloves, and safety shoes.
- Ensure adequate ventilation to avoid inhaling welding fumes.
- Protect bystanders from arc rays and hot metal.
- Never weld near flammable materials.
- Ensure the machine is properly grounded.
- Do not touch live electrical parts.
- Disconnect power before performing any maintenance or changing accessories.
- This machine is equipped with Overcurrent, Overvoltage, Overheating, Overload Protection, and VRD (Voltage Reduction Device) for enhanced safety.
3. Package Contents
Upon unpacking, verify that all the following items are included:
- HITBOX MIG200III Welding Machine
- MIG Torch
- Ground Clamp
- Electrode Holder
- Welding Wire Spool (e.g., 1KG/5KG compatible)
- Consumables (contact tips, nozzles)
- User Manual (this document)
4. Setup
4.1 Power Connection
- Ensure the machine is connected to a stable AV220V ±15% power supply.
- Use an appropriate EU Plug (as specified by product properties).
- The machine can be used with a power generator.
4.2 Wire Installation (MIG/Flux MIG)
- Open the wire feeder compartment.
- Place the 1KG or 5KG welding wire spool onto the spindle.
- Thread the wire through the guide tube and feed rollers.
- Adjust the tension of the feed rollers to ensure smooth wire feeding without slippage or crushing.
- Compatible wire diameters: 0.6mm, 0.8mm, 1.0mm.
4.3 Gas Connection (Gas MIG/Mixed Gas MIG)
- Connect your shielding gas cylinder (e.g., CO2, Argon, or Argon/CO2 mix) to the gas inlet on the machine using a gas hose and regulator.
- Ensure all connections are tight to prevent gas leaks.
- For Mixed Gas MIG, use a gas proportioner to mix 82% Argon with 18% CO2 for optimal results.
4.4 Torch and Ground Clamp Connection
- Connect the MIG torch to the appropriate connector on the front panel.
- Connect the ground clamp cable to the negative (-) terminal and attach the clamp securely to the workpiece.
- For MMA (ARC) welding, connect the electrode holder to the positive (+) terminal and the ground clamp to the negative (-) terminal.
- For Lift TIG welding, connect the WP-17V TIG torch (extra purchase required) to the negative (-) terminal and the ground clamp to the positive (+) terminal.
5. Operating Instructions
The MIG200III features synergy control technology, simplifying parameter settings. Select your desired mode and material, and the machine will automatically adjust current, voltage, and wire speed.
5.1 Synergic MIG Welding (SYN)
- Turn on the machine.
- Press the 'MODE' button to select 'SYN' mode.
- Use the 'MATERIAL' knob to select the appropriate material (e.g., Fe+CO2, Fe+MIX, FLUX, AL+Ar).
- Use the 'WIRE SIZE' knob to select the correct wire diameter (0.6mm, 0.8mm, 0.9mm, or 1.0mm).
- The machine will automatically set the optimal current, voltage, and wire speed. Fine-tune if necessary using the 'VOLT' and 'AMP' knobs.
- Select desired functions like 'Pre gas', '2T', '4T', 'Postgas', or 'SPOT' using the 'FUNCTION' knob.
- Begin welding.
5.2 Gasless/Gas MIG Welding
- Gasless MIG (Flux Cored): Use 0.6/0.8/1.0mm flux cored wire. No shielding gas is required. Welding thickness range: 0.8-8.0mm.
- Gas MIG (Solid Cored): Use 0.6/0.8/1.0mm solid cored wire with appropriate shielding gas (e.g., CO2 for steel). Welding thickness range: 0.8-8.0mm.
- Mixed Gas MIG: For less spatter and better welding performance on stainless steel and iron, use 0.8mm wire with a mixed gas (82% Argon, 18% CO2).
- The machine can achieve 100% duty cycle when using 0.8mm wire.
5.3 Aluminum Welding
The MIG200III supports aluminum welding with two proven methods:
- MIG Gun: The included MIG gun is enhanced with a graphene tube for improved aluminum wire feeding.
- Spool Gun: For optimal aluminum welding, a spool gun (WP17V TIG torch and spool gun need to be purchased additionally) is recommended.
5.4 Lift TIG Welding
- Connect a WP-17V TIG torch (extra purchase required) to the machine.
- Select 'TIG' mode on the control panel.
- Welding thickness range: 1.0-6.0mm.
- Initiate the arc by touching the tungsten electrode to the workpiece and lifting slightly.
5.5 MMA (ARC) Welding
- Connect the electrode holder and ground clamp as described in Section 4.4.
- Select 'MMA' mode.
- Use 2.5mm, 3.2mm, or 4.0mm welding rods.
- Suitable for welding metal with thickness 1.0-12mm.
5.6 Spot Welding
- Select 'SPOT' function on the control panel.
- This mode is ideal for joining thin sheets of metal with precise, timed welds.
6. Maintenance
- Regularly clean the machine's exterior and ventilation openings to prevent dust buildup.
- Check welding cables and connections for wear or damage before each use.
- Inspect the MIG torch liner and replace if clogged or worn to ensure smooth wire feeding.
- Clean or replace contact tips and nozzles as needed.
- Store the machine in a dry, clean environment when not in use.
- The machine features a water-proof switch for enhanced durability.
7. Troubleshooting
If you encounter issues, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No power to machine | Power cable disconnected, circuit breaker tripped | Check power connections, reset circuit breaker |
| No arc / Weak arc | Poor ground connection, incorrect settings, worn consumables | Ensure good ground, verify settings, replace contact tip/electrode |
| Wire feeding issues | Incorrect roller tension, clogged liner, wrong wire size | Adjust roller tension, clean/replace liner, use correct wire |
| Overheat indicator on | Exceeded duty cycle, blocked ventilation | Allow machine to cool, clear ventilation openings |
If the problem persists, contact customer support.
8. Specifications
| Feature | Specification |
|---|---|
| Brand Name | HITBOX |
| Model | MIG200III |
| Inverter Technology | IGBT |
| Input Voltage | AV220V ±15% |
| Frequency | 50/60HZ |
| Max OCV (Open Circuit Voltage) | 60V |
| Duty Cycle | 55%@160A |
| Power Factor | 0.73 |
| Postflow Time | 1.0 ±0.5 seconds |
| Packing Dimension | 425*183*290mm |
| Wire Diameter (MIG) | 0.8mm / 1.0mm (also 0.6mm for flux cored) |
| Applicable Thickness (MIG) | Over 0.8mm (0.8-8.0mm) |
| Applicable Thickness (TIG) | 1.0-6.0mm |
| Applicable Thickness (ARC/MMA) | 1.0-12mm |
| Wire Feed Speed | 3-18m/min |
| Weight | 14.15KG (Product), 14.5KG (Package) |
| Certification | CE |
9. User Tips
- For beginners, start with the Synergic MIG mode as it simplifies parameter setup.
- Always perform test welds on scrap material to fine-tune settings before working on your main project.
- When welding aluminum, ensure your workpiece is clean and free of oxides for best results. Consider using a spool gun for better wire feeding control with soft aluminum wires.
- Keep your welding area tidy and free of clutter to prevent accidents.
- Regularly check the gas flow rate for Gas MIG welding to ensure adequate shielding.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the official HITBOX website or contact your authorized dealer. Keep your purchase receipt as proof of purchase.
For additional resources or to download the latest version of this manual, please visit the manufacturer's support page.





