1. Introduction
Thank you for choosing the CONENTOOL 4-IN-1 MIG Welder. This versatile machine is designed for a wide range of welding applications, offering MIG (Gas/Gasless), MMA (Stick), and Lift-TIG welding capabilities. Featuring an intelligent One-Knob Control System for synergistic adjustments, advanced safety protections, and a compact design, it is suitable for both professional and DIY use. This manual provides essential information for safe and effective operation of your welding machine.

2. Safety Precautions
Welding can be dangerous. Always follow safety guidelines to prevent injury or damage. Read and understand all instructions before operating the machine.
2.1 General Safety
- Always wear appropriate Personal Protective Equipment (PPE), including welding helmet, gloves, protective clothing, and safety shoes.
- Ensure adequate ventilation in the work area to disperse fumes and gases.
- Keep a fire extinguisher nearby and be aware of fire hazards.
- Do not operate the welder in damp or wet conditions.
- Keep children and unauthorized personnel away from the welding area.
2.2 Machine Safety Features
Your CONENTOOL welder is equipped with advanced safety protections:
- Overheating Protection: The machine will automatically shut down if it exceeds safe operating temperatures.
- Overload Protection: An automatic shutdown system activates in case of an electrical overload.
- IP21S Protection Standard: Provides protection against solid objects larger than 12.5mm and vertically falling water drops.
- Electrostatic Coating: A unique coating helps prevent shock transfer.

3. Components and Controls
Familiarize yourself with the main components and controls of your welding machine.
3.1 Front Panel

- Digital Panel: Displays voltage, current, and other settings.
- Voltage/Current Knobs: Adjust welding parameters.
- Mode Selection Buttons: Select between MIG, MMA, and TIG welding modes.
- Positive/Negative Output Terminals: Connection points for welding cables.
- Heat Dissipation Vents: Ensure proper cooling during operation.
3.2 Back Panel

- Power Switch: Turns the machine ON/OFF.
- Gas Connection Port: For connecting the gas cylinder when performing MIG Gas welding.
- Input Power Cable: Connects to a 220V power supply.
- Heat Dissipation Vents: Additional vents for cooling.
3.3 Wire Feed Mechanism

- Wire Spool Holder: Secures the welding wire spool.
- Wire Feed Roller: Guides and feeds the welding wire.
- Quick Wire Feeding Button: For quick wire advancement.
4. Setup Instructions
Before operating, ensure the machine is properly set up.
4.1 Power Connection
- Ensure the power switch on the back panel is in the 'OFF' position.
- Connect the input power cable to a stable 220V AC power supply.
4.2 Welding Cable Connections
The connection method varies slightly depending on the welding mode.
- MIG Welding (Gas/Gasless):
Connect the MIG gun to the appropriate connector on the front panel. Connect the earth clamp to the negative (-) terminal. - MMA (Stick) Welding:
Connect the MMA gun (electrode holder) to the positive (+) terminal. Connect the earth clamp to the negative (-) terminal. - Lift-TIG Welding:
Connect the TIG torch to the negative (-) terminal. Connect the earth clamp to the positive (+) terminal.
4.3 Wire Spool Installation (MIG Welding)
- Open the side panel of the welder to access the wire feed mechanism.
- Place the appropriate wire spool (e.g., 0.8mm flux-cored wire for gasless MIG) onto the spool holder.
- Thread the welding wire through the wire feed roller and into the MIG gun liner.
- Close the side panel.
4.4 Gas Connection (MIG Gas Welding)
- If performing MIG Gas welding, connect your gas regulator and gas cylinder to the gas connection port on the back panel of the machine.
- Ensure all connections are secure and leak-free.
5. Operating Instructions
This machine offers 4 welding modes: MIG with gas, MIG without gas (Flux-Cored), MMA, and Lift-TIG.

5.1 Power On
- Ensure all connections are correct and secure.
- Turn the power switch on the back panel to the 'ON' position. The digital display on the front panel will illuminate.
5.2 Mode Selection
Use the mode selection buttons on the front panel to choose your desired welding process:
- MIG Gas: For welding with shielding gas.
- MIG Gasless (Flux-Cored): For welding with flux-cored wire, no external gas required.
- MMA: For stick welding with coated electrodes.
- Lift-TIG: For TIG welding with a lift-arc start.
5.3 Parameter Adjustment (Synergy Control)
The CONENTOOL MIG Welder features a One-Knob Intelligent Control System (Synergy) that simplifies parameter setting.
- Select your welding mode.
- Use the main control knob to adjust the welding current. The machine will automatically compensate and adjust other related parameters (like wire feed speed for MIG) for optimal welding performance.
- Fine-tune voltage and other settings using the dedicated knobs if necessary, based on your material and desired weld.
5.4 Welding Process
- MIG Welding: Ensure proper stick-out, angle, and travel speed. The automatic wire feeding system will maintain a consistent arc.
- MMA Welding: Strike the arc by lightly touching and lifting the electrode. Maintain a consistent arc length and travel speed.
- Lift-TIG Welding: Touch the tungsten electrode to the workpiece and then lift it slightly to initiate the arc. Maintain a consistent arc length.
The welder is suitable for various metals including stainless steel, iron, and copper.

6. Maintenance
Regular maintenance ensures the longevity and optimal performance of your welding machine.
- Cleaning: Regularly clean the machine, especially the heat dissipation vents, to prevent dust buildup. The built-in cooling fan system helps reduce dust infiltration.
- Cable Inspection: Periodically inspect all welding cables, connections, and the power cord for any signs of damage or wear. Replace damaged parts immediately.
- Wire Feed Mechanism: Keep the wire feed rollers clean and free of debris. Ensure the wire liner is not clogged.
- Storage: Store the welder in a dry, clean environment away from direct sunlight and extreme temperatures.
7. Troubleshooting
If you encounter issues, refer to this section for common problems and solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| Welder does not power on | No power supply; Power switch off; Internal fuse blown | Check power outlet and cable; Turn power switch ON; Contact service for fuse replacement. |
| No arc or weak arc | Poor earth clamp connection; Incorrect welding parameters; Damaged welding cable/torch | Ensure good contact for earth clamp; Adjust current/voltage; Inspect and replace damaged parts. |
| Wire feed issues (MIG) | Wire tangled; Clogged liner; Incorrect roller tension; Wrong wire size | Untangle wire; Clean liner; Adjust roller tension; Use correct wire size (0.8-1.0mm). |
| Overheat protection activated | Exceeded duty cycle; Blocked ventilation; High ambient temperature | Allow machine to cool down; Clear vents; Work in a cooler environment. |
8. Specifications
Technical data for the CONENTOOL MIG-200 welding machine.

| Feature | Specification |
|---|---|
| Model Number | MIG-200 |
| Brand Name | Conentool |
| Item Type | MMA/MIG/TIG Welder (4-in-1) |
| Input Voltage | 1-AC220V |
| Maximum Input Current | 200A |
| Rated Input Capacity | 4.6KVA |
| Rated Output (MIG) | 30A/16V - 200A/24V |
| Rated Output (MMA) | 30A/20.8V - 170A/26.8V |
| Duty Cycle | 35% at 140A (MIG/MMA) |
| Welding Rod/Wire Size | 0.8-1.0MM (Flux-Cored Wire) |
| Protection Class | IP21S |
| Dimensions (L x W x H) | 37cm x 16cm x 19.2cm |
| Weight | 8.0 kg |
| Certification | CE, WEEE |
| Origin | Mainland China |

9. User Tips
- For optimal MIG welding results, always ensure your workpiece is clean and free of rust, paint, or oil.
- When using the Synergy control, start with the recommended settings for your material thickness and then make small adjustments to achieve the desired bead.
- Practice on scrap metal to get a feel for the machine's settings and your technique before working on important projects.
- Remember to check your consumables (nozzles, contact tips, electrodes) regularly and replace them when worn to maintain weld quality.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the contact details provided with your purchase documentation or visit the official Conentool website. Keep your proof of purchase for any warranty claims.





