AZZUNO 155A Aluminum MIG Welder review

Are you trying to decide whether the AZZUNO Aluminum MIG Welder 155Amp, Dual Vlotage 110V/220V 5-in-1 Welder Machine Gasless MIG/Gas MAG/Aluminum MIG/Stick/Lift TIG Welding, Multiprocess Welding Machine is the right addition to your shop or garage?

First impressions and overall feel

You’ll notice this machine aims to be a true multiprocess workhorse right out of the box. The first impression is one of versatility — it promises to handle gasless MIG, gas MAG, aluminum MIG, stick, and lift TIG welding without forcing you to swap to another machine for a new task.
The look and packaging give the sense that the unit targets hobbyists, small shops, and DIYers who need a single tool that covers a lot of ground without a steep learning curve.

What the AZZUNO Aluminum MIG Welder offers

You get a lot of functionality in one compact package, including dual voltage capability (110V/220V) and a maximum output of 155 amps. Those specs make it suitable for light to medium fabrication tasks and allow you to use common household outlets or a 220V circuit when you need more power.
The included accessories mean you can start welding basic projects immediately — the manufacturer bundles torches, wires, rollers, contact tips, and other consumables to reduce the initial setup barriers.

Quick specification breakdown

Below is a compact table that breaks down the key features to help you compare at a glance. This will make it easier for you to decide if the machine fits your needs.

Feature	Details
Model	AZZUNO Aluminum MIG Welder 155Amp (Dual Voltage 110V/220V)
Welding Processes	Gasless MIG (Flux-core), Gas MAG (MIG), Aluminum MIG, Stick (E6013 support), Lift TIG
Maximum Output	155 Amp
Wire Sizes Supported	.030″/.035″ flux core, .030″ solid wire, .035″/.040″ aluminum wire
Spool Size	1 lb to 2 lbs spools supported
MIG Modes	SYN (Synergic), 2T, 4T
Included Accessories	MIG torch, electrode holder, ground clamp, flux-cored wire (2 lb .030″), gas hose, contact tips (.030″/.035″), nozzles, V & U groove drive rollers, brush & hammer
Notable Extras	Synergic setting, Lift TIG capability, no spool gun/Teflon liner required for aluminum

Multiprocess capabilities explained

You’ll appreciate that this machine is intended to remove the need for separate equipment when switching between processes. Each welding mode is useful for different materials and situations, and the AZZUNO tries to cover them all.
The ability to switch modes expands the range of projects you can complete with a single investment, and it reduces the footprint and cost of your overall welding setup.

Gasless MIG (flux-core)

Gasless MIG is convenient when you want portability or you’re working outdoors where wind could disturb shielding gas. This machine supports flux-core wire which gives you the ability to weld mild steel without an external gas cylinder.
If you prioritize simplicity and quick setup for sheet metal repairs or farm equipment work, gasless MIG will often be your go-to option.

Gas MAG / Gas MIG

When you need cleaner welds with less spatter and better mechanical properties, you’ll switch to gas MAG/MIG with a proper shielding gas (usually CO2 or a CO2/argon mix for MAG). This mode is preferable for professional-looking welds on mild steel and for joints where appearance and strength matter.
You’ll need a gas cylinder and regulator in this mode, but the improvement in bead quality is worth it for many projects.

Aluminum MIG

One of the most attractive claims is the ability to weld aluminum MIG without requiring a spool gun or a Teflon liner. For you, that means less expense and fewer specialized parts to manage when handling aluminum.
The machine accepts .035″ and .040″ aluminum wire sizes and includes a U groove drive roller designed for softer aluminum wire, helping to feed the wire smoothly and reduce snarls.

Stick welding (SMAW)

Stick welding is a reliable process for outdoor work, rusty or dirty metal, and thicker sections. The AZZUNO supports common stick electrodes like E6013, which makes simple repair work and farm or structural welding approachable.
It’s not intended to replace a heavy-duty stick-only rig for constant high-amp industrial jobs, but for occasional stick work and maintenance tasks, it’s a capable addition.

Lift TIG

Lift TIG will let you do basic TIG tasks and get good-looking welds on thinner materials when performed properly. Lift TIG uses a touch start rather than a high-frequency arc starter, which keeps the machine simpler while still enabling TIG-style welding.
This mode is ideal when you need better control and appearance than MIG can provide for thin sheet metal, but you should be aware that lift TIG is more limited than a dedicated TIG machine in terms of features and fine control.

Wire and spool compatibility

You’re given a fairly broad set of wire options which makes the machine adaptable for different tasks and materials. The support for both 1 lb and 2 lb spools means you’re not limited to tiny spools for aluminum work.
Having included drive rollers for both V (for steel) and U (for aluminum) profiles simplifies spool and wire changes and minimizes feed issues.

Supported wire types and sizes

The AZZUNO supports .030″/.035″ flux-core and .030″ solid wire for steel, and .035″/.040″ for aluminum. This covers the most common wire sizes you’ll need for hobby and light professional work.
You’ll find that the included contact tips and rollers match the supported wires, so you won’t have to hunt for consumables immediately after opening the box.

No spool gun or Teflon liner required for aluminum

Because the manufacturer designed the feed system and rollers to handle aluminum wire, you can weld aluminum without adding a spool gun or replacing the liner with Teflon. This makes aluminum work less of a hassle and faster to set up.
Still, you should take care with wire handling and tension settings to avoid feeding problems: aluminum is softer and more prone to bird-nesting if feed settings or rollers aren’t correct.

Voltage and power: 110V vs 220V operation

The dual voltage capability gives you flexibility in where you use the machine, which is helpful if you move between home garage (110V) and a workshop with 220V service. You’ll get more welding power and likely better duty cycles on 220V, allowing you to tackle thicker materials and longer welds.
On 110V, the machine is handy for light repairs and thin-gauge welding, but you’ll be limited on maximum amperage and how long you can weld continuously before thermal cutout. Always match the power source to your intended projects to get the best performance.

Practical implications for your workflow

If you primarily do light fabrication or auto body work, you’ll probably be fine using 110V most of the time. If you plan to weld thicker plate or perform continuous production welding, you’ll want 220V to take full advantage of the 155 amp capability.
Be mindful of extension cords and generator compatibility — undersized cords and insufficient generators will degrade performance and may cause the machine to trip.

Performance and welding quality

You can expect respectable arc stability across the MIG modes and a relatively smooth aluminum arc for a machine in this class. The SYNERGIC (Synergic) mode can help if you prefer a semi-automatic setup that suggests optimal parameters based on wire size and material thickness.
Weld bead appearance and penetration will depend on your technique, the chosen mode, and whether you use shielding gas for MIG. With practice and proper setup, you can produce professional-looking welds on steel and clean results on aluminum.

Synergic, 2T, and 4T modes — what they mean for you

Synergic mode automatically adjusts wire feed and voltage relationships to simplify setup, which is excellent if you’re still learning how different parameters interact. This will save you time during initial tune-ups for a new material thickness or wire size.
2T gives you normal trigger-on, trigger-off operation for shorter welds while 4T works like a toggle for long continuous welds so you don’t have to keep your finger on the trigger. Both modes make continuous welds more comfortable and reduce operator fatigue.

Aluminum welding specifics and tips

Welding aluminum requires different techniques than steel, and although the AZZUNO simplifies the hardware side, you still need to adjust your setup and technique. Clean the aluminum thoroughly with a stainless steel brush, select the proper filler wire, and run at the higher settings available on 220V for thicker sections.
Because the machine supports .035″/.040″ aluminum wire and includes the U groove roller, you’ll likely get consistent feeding when you set the tension and speed correctly. Practice on scrap to dial in travel speed and heat input before committing to your project piece.

Shielding gas and filler considerations

When MIG welding aluminum, you’ll want to use 100% argon shielding gas for most situations to achieve a clean arc and good bead shape. Match filler wire diameter to your joint design and thickness — .035″ often covers a lot of common aluminum tasks.
If you attempt aluminum welding on 110V, you’ll be limited to very thin material. For anything thicker than a few millimeters, use 220V to get the necessary heat.

Stick and TIG performance details

For stick welding, you’ll get the convenience of using E6013 and similar electrodes which are forgiving and easy to arc. This makes the AZZUNO useful for repairs and construction in environments where shielding gas isn’t practical.
Lift TIG is useful for controlled, cosmetically clean welds on thinner sections and for tasks where TIG’s precision is important. Don’t expect the fine power control and AC balance features of a dedicated AC TIG machine for complex aluminum TIG work, though.

Practical use cases for each process

You’ll likely use gasless MIG for quick outdoor or mobile repairs, gas MIG/MAG when final appearance and strength matter, aluminum MIG for boat, trailer, or automotive aluminum parts, stick for structural repair and dirty metal, and lift TIG for finishing or delicate thin-metal joints.
This flexibility gives you multiple viable options on a single machine, which is a strong selling point if you manage mixed types of projects.

Control layout and ease of use

The control panel and user interface are designed to be approachable, with modes and settings laid out for quick adjustments. You’ll find knobs or digital displays for adjusting current and wire feed speed, plus buttons for selecting SYNERGIC, 2T, or 4T modes.
This makes it straightforward to switch between processes and fine-tune the arc without a lot of guesswork — but as with any multiprocess machine, spending time with the manual and a few test welds will speed up your learning curve.

Spool loading and drive system

Loading spools is made easier by the included rollers and the support for both 1 lb and 2 lb spools. You’ll appreciate the V and U groove drive rollers that are supplied, which match the wire types and reduce feeding frustrations.
Properly tensioning the spool and adjusting the drive roll pressure is critical for aluminum feed reliability; take the time to get these set correctly and your wire feeding will be consistent.

Package contents and accessories included

The box includes a lot of the basics so you can start welding quickly. You’ll find the main welder unit, a MIG torch, electrode holder, ground clamp, a spool of .030″ flux-cored wire, gas hose, contact tips, nozzles, and a set of drive rollers.
This package reduces initial setup cost and effort, although you’ll still need to supply shielding gas (if using gas MIG) and a regulator, plus appropriate PPE.

Included parts list (detailed)

Below is another short table listing the main accessories so you can confirm what you’ll receive with your purchase.

Included Item	Notes
Aluminum MIG Welder unit	Main machine, dual voltage
MIG Torch	For gas and gasless MIG operation
Electrode Holder	For stick welding
Ground Clamp	Standard ground cable clamp
.030″ 2 lb Flux-cored Wire	For immediate gasless MIG use
Gas Hose	Required when switching to gas MIG/MAG
Contact Tips (.030″, .035″)	Consumables for different wires
Nozzle	For MIG torch
V Groove Drive Roller (.030″)	For steel wire
U Groove Drive Roller (.035″/.040″)	For aluminum wire
Brush & Hammer	For slag removal and cleaning

Setup and start-up guide

Getting the machine ready involves a few key steps: select the welding process, load the correct spool and drive roller, set wire feed tension, and configure your voltage/wire feed settings. If you plan to use gas MIG, attach your regulator and gas hose before purging the line.
It’s smart to run a few test beads on scrap metal to confirm settings and to avoid surprises on your actual workpiece.

Step-by-step for gasless MIG (flux-core)

1. Install the flux-cored spool in the V groove drive roller and thread the wire through the liner and torch.
2. Set wire feed tension moderate to prevent slipping or bird-nesting.
3. Set basic wire feed speed and current based on scrap tests; use SYNERGIC mode if you want the machine to recommend matchups.
4. Begin welding with a slight push technique to get good penetration and clean beads.

Step-by-step for aluminum MIG (no spool gun)

1. Switch to the U groove drive roller and install the aluminum spool (1 lb or 2 lb).
2. Adjust roller tension lower than steel to avoid flattening or deforming the soft aluminum wire.
3. Use 100% argon shielding gas and ensure a clean aluminum joint free of oxide.
4. Set wire feed speed and current conservatively and increase based on bead appearance.

Step-by-step for stick and lift TIG

1. For stick, mount the electrode holder and select an appropriate electrode like E6013. Adjust amperage for electrode size and material thickness, then start welding.
2. For lift TIG, attach TIG torch and use the lift start method to strike the arc; set amperage and filler wire as needed. Keep motion steady and maintain proper gas flow.

Recommended settings chart (approximate)

These settings are guidelines to help you get started; always test on scrap material and fine-tune based on your torch angle, travel speed, and material condition.

Material & Thickness	Wire Diameter	Mode	Approx. Amperage / Wire Feed Tip
Thin sheet steel (18–20 ga / 0.8–1.2 mm)	.030″ flux-core or solid	Gasless MIG / Gas MIG	40–65A (lower range)
Medium steel (16–14 ga / 1.5–2.5 mm)	.030″/.035″	Gas MIG / Flux-core	60–90A
1/8″ steel (3 mm)	.030″/.035″	Gas MIG	90–120A
1/4″ steel (6 mm)	.035″ solid or flux-core	Gas MIG (220V preferred)	120–155A
Thin aluminum (tapered sheet)	.035″	Aluminum MIG (220V, Argon)	60–120A (depends on thickness)
Moderate aluminum (2–4 mm)	.035″/.040″	Aluminum MIG (220V)	80–140A
Stick welding (E6013, various sizes)	Electrode dependent	Stick	Match amperage to electrode (test on scrap)
Lift TIG on thin steel/aluminum	TIG rod filler	Lift TIG	Lower amperage, controlled heat

Note: These values are approximate and intended as a starting point. Always make trial welds on scrap to fine-tune settings for your exact setup.

Pros and cons

You’ll want to weigh the advantages and limitations before deciding to buy. The pros and cons below are based on what typical users will experience.

Pros

• Very versatile: five processes in one machine save you money and space.
• Dual voltage (110V/220V) for flexible power options.
• Built-in aluminum MIG capability without a spool gun or Teflon liner needed.
• Synergic mode helps beginners get good starting parameters quickly.
• Includes useful accessories (drive rollers, contact tips, flux-cored wire) for immediate use.

Cons

• 155 amps limits you to light-to-medium thickness — not for heavy industrial plate welding.
• Lift TIG lacks some of the features of a dedicated TIG machine (AC balance, HF start).
• Performance on aluminum will be good for many tasks but may not match a high-end spool gun + inverter combo for production aluminum work.
• As with many multiprocess machines, you give up some process specialization for convenience.

Common issues and troubleshooting

If you run into problems, the most frequent culprits are wire feed issues, improper gas flow, incorrect polarity, or incorrect roller selection. Identifying the problem area will usually get you back to welding quickly.
A few simple checks before blaming the machine will save time: confirm drive roller type, inspect liner for snags, check gas supply and regulator, and verify polarity and cable connections.

Typical problems and fixes

• Bird-nesting or wire slipping: reduce drive tension, clean liner, ensure correct roller is installed.
• Porous or contaminated aluminum welds: clean oxide with a stainless brush and ensure argon flow is correct.
• Overheating or thermal shutdown: reduce duty cycle, work in shorter passes, or switch to 220V for heavier jobs.
• Excessive spatter in MIG: check gas type/flow and adjust voltage/wire feed balance.

Maintenance and consumables

Keeping the machine in good shape is mostly about watching consumables and cleaning the unit. Replace contact tips and nozzles as they wear, clean the torch liner and disconnects periodically, and inspect cables for damage.
Also check the drive rollers and replace them when they show wear. For aluminum work, cleanliness and roller condition are especially important to avoid feed problems.

What to replace and when

• Contact tips: replace when the hole becomes oval or worn or when arc becomes unstable.
• Nozzle: replace when deformed or clogged with spatter.
• Drive rollers: swap when grooves are worn or when you experience feeding inconsistency.
• Liners: replace or clean if you notice friction or bird-nesting, especially after using aluminum wire.

Safety tips

You should always use appropriate PPE: welding helmet with the correct shade, gloves, long-sleeve flame-resistant clothing, and proper ventilation. Welding produces fumes and UV radiation, so protecting your eyes, skin, and lungs is critical.
Ensure the workpiece is properly grounded, keep your workspace free of flammable materials, and give the machine and consumables a chance to cool if you’ve been welding continuously.

Who should buy the AZZUNO Aluminum MIG Welder 155Amp

This machine is a solid choice if you’re a hobbyist, a small shop owner, an auto restorer, or someone who does occasional on-site repairs and needs versatility. You’ll particularly appreciate its ability to weld aluminum without special add-ons and its dual voltage capability.
If your workload includes constant heavy plate welding or you need full-feature TIG performance (AC for aluminum TIG, precise amps and pulsing), you might look at higher-end or dedicated machines instead.

Alternatives to consider

If you find yourself focused primarily on one process, such as heavy aluminum production or precision TIG, consider a dedicated machine tailored to that process. A spool gun-equipped MIG for high-volume aluminum work or a full TIG inverter with AC for fine aluminum TIG would be better suited for heavy professional workloads.
However, if you truly need a do-everything machine for mixed tasks and variable job sites, the AZZUNO is worth considering as a cost-effective, compact solution.

Final verdict

You get a lot of versatility for the money with the AZZUNO Aluminum MIG Welder 155Amp, Dual Vlotage 110V/220V 5-in-1 Welder Machine Gasless MIG/Gas MAG/Aluminum MIG/Stick/Lift TIG Welding, Multiprocess Welding Machine. It’s a friendly, practical choice for people who need multiple welding capabilities without buying several machines.
If your projects are in the light-to-medium range and you value convenience, dual-voltage flexibility, and the ability to weld aluminum without extra hardware, this machine should serve you well. Take time to practice on scrap, tune feed settings carefully for aluminum, and plan on basic maintenance of consumables to get the most out of it.

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