1. Introduction
This manual provides essential information for the safe and effective operation of your AZZUNO 200A Multi-Process Welder (MIG-200L). This versatile machine supports 8 welding modes, including Flux Core MIG, Gas MIG, Gas MAG, Aluminum MIG, Spot MIG, Lift TIG, Stick Welding, and is compatible with a Spool Gun. Please read this manual thoroughly before operating the welder to ensure proper use and to prevent injury or damage.
2. Safety Information
WARNING: Welding can be dangerous. Always follow safety precautions to prevent serious injury or death.
- Always 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, which can be hazardous to your health.
- Protect bystanders from arc rays and sparks using welding screens or barriers.
- Never weld near flammable materials or in explosive atmospheres.
- Ensure the welding machine is properly grounded.
- Disconnect power before performing any maintenance or changing accessories.
- Do not touch electrically live parts.
3. Product Overview
The AZZUNO MIG-200L is a multi-process welding machine designed for versatility and ease of use. It features a large LED display for clear parameter adjustments and supports a wide range of welding applications.
3.1 Main Components
Image: Front view of the AZZUNO 200A Multi-Process Welder, showcasing the control panel, wire feed compartment, and included solid MIG welding wire spool.
- Control Panel: Features a large LED display for voltage, amperage, and wire speed, along with mode selection buttons and adjustment knobs.
- Wire Feed Compartment: Located on the side, designed to accommodate 1 lb to 10 lbs wire spools.
- Euro Connector: For connecting the MIG torch.
- Ground Clamp Connection: For attaching the ground clamp.
- Spool Gun Connector: Dedicated port for optional spool gun (LBT150, not included).
- Power Input: Supports 110V/220V dual voltage.
3.2 Large LED Display and Controls
Image: Detailed view of the user-friendly large LED control panel, highlighting Stick Welding Functions, MIG Welding Functions, and ST/4T/SPOT/Spool Gun settings.
The large LED display provides clear feedback on welding parameters. Users can select between various welding functions and adjust settings with precision. The display shows voltage (V), amperage (A), and wire feed speed (m/min).
- Mode Selection: Buttons for Flux Core, Fe+CO2, Fe+MIX, SS+MIX, AL+Ar, Cu+Ar, SYN (Synergic), MAN (Manual), MMA (Stick), Lift TIG.
- Parameter Adjustment: Knobs to fine-tune voltage, amperage, and other specific settings for the selected mode.
- Trigger Modes: 2T (Two-Touch), 4T (Four-Touch), and Spot welding functions.
- Advanced Features: Hot Start, Arc Force, Anti-Stick, VRD (Voltage Reduction Device) for Stick welding. Inductance, Slow Wire Feeding, Pre-flow, Spot Time for MIG functions.
4. Setup
Proper setup is crucial for safe and effective welding. Follow these steps carefully.
4.1 Unpacking and Inspection
- Carefully remove the welder and all accessories from the packaging.
- Inspect the machine for any signs of shipping damage. If damage is found, contact your supplier immediately.
- Verify that all components listed in the packing list are present.
Image: The AZZUNO 200A Multi-Process Welder displayed with its standard accessories, including the MIG torch, ground clamp, electrode holder, and welding wire.
4.2 Power Connection
- The welder supports both 110V and 220V input. Ensure the correct power cord and adapter are used for your power supply.
- Connect the power plug to a properly grounded electrical outlet.
4.3 Wire Spool Installation
Image: The internal wire feed system of the AZZUNO MIG-200L, showing how a 10lb wire spool is mounted and threaded through the feeder mechanism. This welder supports 1lb to 10lb wire spools.
- Open the wire feed compartment.
- Place the wire spool onto the spool holder, ensuring it rotates freely. The welder supports 1 lb to 10 lbs wire spools.
- Thread the welding wire through the wire feeder mechanism and into the MIG torch liner. Ensure the correct drive roller size is selected for your wire diameter.
- Close the wire feed compartment.
4.4 Gas Connection (for Gas MIG/MAG)
- Connect the gas hose from your shielding gas cylinder (e.g., CO2, Argon, or Argon/CO2 mix) to the gas inlet on the rear of the welder.
- Ensure all connections are secure and leak-free.
- Adjust the gas regulator to the recommended flow rate for your welding process.
4.5 Torch and Ground Clamp Connection
- Connect the MIG torch to the Euro connector on the front panel.
- Connect the ground clamp cable to the appropriate terminal on the front panel.
- Attach the ground clamp securely to the workpiece, ensuring good electrical contact.
5. Operating Instructions
The AZZUNO MIG-200L offers multiple welding processes. Select the appropriate mode for your application.
5.1 Welding Modes Overview
Image: Visual representation of the 8-in-1 multi-process welding machine, detailing modes such as Gasless MIG, Gas MAG, Mixed Gas MAG, Aluminum MIG, Spool Gun, Spot MIG, Stick, and Lift TIG.
- Flux Core MIG (Gasless MIG): Uses flux-cored wire, no external shielding gas required. Suitable for outdoor welding and thicker materials.
- Gas MIG/MAG: Uses solid wire with shielding gas (e.g., CO2 for MAG, Argon/CO2 mix for MIG). Provides cleaner welds and is suitable for various metals.
- Aluminum MIG: Specialized settings for welding aluminum. Requires Argon shielding gas and typically a Teflon liner or spool gun for optimal wire feeding.
- Spot MIG: For precise, short welds, often used for sheet metal.
- Spool Gun Compatible: For welding soft wires like aluminum, a spool gun (sold separately) can be connected for improved wire feeding.
- Lift TIG: For precise welding of thin materials. Requires a TIG torch (not included) and Argon shielding gas.
- Stick Welding (MMA): Uses coated electrodes. Suitable for various metals and outdoor conditions.
5.2 Selecting a Welding Mode
- Turn on the welder.
- Use the mode selection buttons on the control panel to choose your desired welding process (e.g., Flux Core, Gas MIG, MMA).
- For MIG modes, select the appropriate wire type (e.g., Fe+CO2, AL+Ar).
5.3 Adjusting Parameters
Once a mode is selected, adjust the welding parameters using the control knobs.
- Synergic Mode (SYN): The welder automatically adjusts voltage and wire speed based on the selected amperage and material thickness. This simplifies setup for beginners.
- Manual Mode (MAN): Allows independent adjustment of voltage and wire speed for experienced users.
- 2T (Two-Touch): Press and hold the torch trigger to start welding; release to stop.
- 4T (Four-Touch): Press and release the trigger to start welding; press and release again to stop. Useful for long welds to reduce hand fatigue.
- Spot Welding: Activates a timed weld for consistent spot welds.
Image: Top panel shows MIG functions including Inductance, Slow Wire Feeding, Pre-flow, and Spot Time. Bottom panel shows Stick functions: Hot Start, Arc Force, Anti-Stick, and VRD.
5.4 Aluminum Welding Considerations
For aluminum welding, the AZZUNO MIG-200L offers enhanced capabilities:
- Teflon Liner: Replace the standard MIG torch liner with a Teflon conduit to reduce friction and improve feeding of soft aluminum wire.
- Spool Gun: For optimal aluminum wire feeding, especially with longer cables, use a compatible spool gun (LBT150, sold separately).
Image: The AZZUNO MIG-200L welder with a close-up of the Euro Connector, indicating compatibility with an external spool gun (not included) for specialized welding tasks.
6. Maintenance
Regular maintenance ensures the longevity and optimal performance of your welding machine.
- Cleaning: Periodically clean the exterior of the machine with a dry cloth. Use compressed air to blow out dust and debris from inside the machine, especially around cooling vents. Ensure the power is disconnected before cleaning.
- Wire Feeder: Inspect the wire feeder rollers for wear and cleanliness. Clean any accumulated debris or wire shavings. Ensure the drive rollers match the wire diameter being used.
- MIG Torch: Regularly check the contact tip, gas nozzle, and diffuser for wear or spatter buildup. Replace worn parts as necessary. Clean spatter from the nozzle to ensure proper gas flow.
- Cables and Connections: Inspect all welding cables, power cords, and gas hoses for damage, cuts, or loose connections. Replace damaged components immediately.
7. Troubleshooting
This section addresses common issues you might encounter during operation.
| Problem | Possible Cause | Solution |
|---|---|---|
| No power to the machine | Power cord disconnected, circuit breaker tripped, machine switch off | Check power cord, reset breaker, turn on machine switch |
| No arc | Poor ground connection, incorrect settings, worn contact tip, no wire feed | Ensure good ground, verify settings, replace contact tip, check wire feed system |
| Poor weld quality (porosity, spatter) | Incorrect gas flow, wrong wire speed/voltage, contaminated workpiece, worn nozzle | Adjust gas flow, optimize settings, clean workpiece, replace nozzle |
| Wire feeding issues | Incorrect drive roller tension, wrong drive roller size, kinked liner, tangled wire spool | Adjust tension, change rollers, inspect/replace liner, untangle wire |
| Overheating protection activated | Exceeded duty cycle, blocked ventilation | Allow machine to cool down, ensure clear ventilation paths |
8. Specifications
Key technical specifications and wire compatibility for the AZZUNO MIG-200L welder.
- Model: MIG-200L
- Input Voltage: 110V/220V (Dual Voltage)
- Welding Processes: Flux Core MIG, Gas MIG, Gas MAG, Aluminum MIG, Spot MIG, Lift TIG, Stick Welding, Spool Gun Compatible
- Wire Spool Capacity: 1 lb to 10 lbs
- Compatible Wire Diameters:
- Solid Wire: .023"/.030"/.035"/.040"
- Flux Core Wire: .023"/.030"/.035"/.040"
- ER5356 Aluminum Wire: .035"/.040"/.047"
- CuSi Wire: .040"
8.1 Included .035" 2LBS Solid MIG Welding Wire (AWS ER70S-6)
Image: Detailed specifications for the included AZZUNO AWS ER70S-6 .035" 2LBS Solid MIG Welding Wire, showing wire model, diameter, net weight, and polarity (DCEP).
- Wire Model: ER70S-6
- Wire Diameter: .035" (0.9mm)
- Net Weight: 2 LBS (0.9kg)
- Polarity: DCEP (Direct Current Electrode Positive)
- Characteristics: Easy to use, smooth feeding, low splatter.
9. Warranty and Support
For warranty information, technical support, or service inquiries, please contact AZZUNO customer service. Refer to the product packaging or the official AZZUNO website for the most current contact details.
AZZUNO Store: Visit the AZZUNO Store on Amazon




