AZZUNO Aluminum 155A MIG Welder review

Looking for a single machine that can handle MIG, flux-core, aluminum, stick, and Lift TIG without a complicated setup?

First impressions

You’ll notice the AZZUNO Aluminum 155A MIG Welder 110V/220V, 5-in-1 MIG Welding Machine with Flux Core MIG/Gas MIG/Aluminum MIG/Stick/Lift TIG Welding, Wire Feed Welder Machine promises a lot of capability in a compact package. The philosophy is clearly convenience-first: simple controls, dual voltage, and a claim to make aluminum MIG welding less fiddly than usual.

Packaging and what’s in the box

The packing list is generous for the price point, and the machine arrives with the main consumables you’ll need to get started right away. You won’t have to run to the store for basics, which is nice if you want to begin practicing or working immediately.

Included item	Quantity	Notes
AZZUNO MIG-155F Welder Machine	1	Main unit, dual voltage
14AK MIG Torch	1	Standard torch for MIG/flux-core
Flux-cored Wire .030″	2 lbs	Included spool to start welding
Ground Clamp	1	Essential for circuit completion
Electrode Holder	1	For Stick welding
110V~220V Adapter	1	Switch between voltages
Brush & Hammer	1	For slag removal and cleaning
Gas Hose	1	For gas-shielded MIG
Hose Band	2	Clamps for gas hose
Drive Roller	2	Spare or alternate sizes
Contact Tip	2	Consumables for torch
Gas Nozzle	1	For MIG gas shielding
User Manual	1	Read before use

Key specifications

You’ll want to know what this machine is capable of so you can match it to your projects. The headline numbers are useful but the real value comes from how those numbers translate into everyday use.

Specification	Detail
Model	AZZUNO MIG-155F
Rated Output	Up to 155A
Input Voltage	110V / 220V (adapter included)
Welding Processes	Flux Core MIG, Gas MIG, Aluminum MIG, Stick (SMAW), Lift TIG
Wire Compatibility	Solid .030″; Flux .030″/.035″; Aluminum .035″/.040″
Spool Size	1 lb to 2 lb wire spools supported
Torch	14AK MIG torch included
Modes	SYN (Synergic), 2T, 4T
Accessories	See packing list above

5-in-1 versatility explained

You’ll appreciate having multiple processes in one machine because it reduces the number of tools you have to buy and maintain. That versatility helps when you switch between thin sheet work, aluminum panels, or simple stick repairs.

What each mode gives you

Each welding mode has practical uses: flux-core is great for outdoor or no-gas situations; gas MIG is clean for steel and stainless with shielding gas; aluminum MIG handles non-ferrous work; Stick is portable and forgiving for repairs; Lift TIG lets you do TIG-style welds when you want finer control. You’ll be using different tools and setup steps for each, but the machine handles the power requirements internally.

Simplified aluminum MIG welding

Aluminum is often the headache for hobbyists and small shops because of wire feeding issues and the need for special liners or a spool gun. This unit claims simplified aluminum MIG welding without requiring you to switch to a Teflon liner or buy a spool gun.

How they make aluminum easier

You’ll save time if the machine reliably feeds softer aluminum wire through the included torch and drive system. For many lighter-duty aluminum jobs (thin sheet to moderate thickness), the combination of compatible wire diameters (.035″/.040″) and proper setup means you can weld aluminum with minimal extra hardware. That said, very long runs or heavy-gauge aluminum may still benefit from a dedicated spool gun and optimized liner setup.

SYN/2T/4T welding functions

You’ll find these modes useful depending on your skill level and the job length. They’re designed to let you focus on the welding bead rather than constant trigger control.

How to use each function

SYN (synergic) mode attempts to match voltage and wire feed for you based on a single setting, which is great if you want quick, predictable results. 2T is the standard trigger-hold mode (press to weld, release to stop), while 4T lets you latch the torch for long runs—press once to start, press again to stop. You’ll find 4T particularly practical for seam welding and extended beads.

Wire options and feed system

You’ll appreciate the flexibility in wire types and spool sizes; it keeps you from having to stock multiple machine-specific spools.

What wire sizes and spools are supported

The machine supports common diameters: .030″ solid wire for gas MIG, .030″/.035″ for flux core, and .035″/.040″ for aluminum. Spools from 1 lb up to 2 lb fit the internal spool holder, which is convenient for smaller projects and storage. The inclusion of extra drive rollers and contact tips means you’ll be able to change between wire sizes without hunting for parts.

Performance across materials

You’ll want confidence that the machine can produce acceptable welds on the materials you use most. For general workshop and hobby use, this welder covers a lot of ground.

Steel and flux-core welding

For mild steel, both flux-core and gas MIG modes will let you weld a range of thicknesses. Flux-core is especially handy if you’re working outdoors or don’t want to fuss with shielding gas. Expect decent penetration on thin to medium steel when you set the machine up properly and use the recommended wire.

Aluminum welding performance

Aluminum is often the tricky part. For thin-gauge aluminum you’ll get very usable results when you clean the base metal and tune the wire feed. For thicker pieces, you might reach the limits of a 155A-class machine, so plan your workloads accordingly. For many DIYers and light fabricators, the simplicity and included consumables make this a capable aluminum solution.

Stick and Lift TIG

Stick welding works well for quick repairs, rusted outdoor pieces, and scenarios where shielding gas isn’t practical. The machine supports common E6013 electrodes for basic stick work. Lift TIG mode gives you TIG functionality for thin metals and precision work; verify whether you need a separate TIG torch to take full advantage, as Lift TIG capability sometimes requires a TIG torch accessory that may not be included.

Controls and user interface

Simplicity is a strong point here: the machine uses just 2 buttons and 2 knobs to cover all major settings. That makes initial learning faster and reduces the frustration of overly complex menus.

What you’ll adjust

You’ll typically set wire feed speed and welding current with the knobs. The buttons manage mode selection and special functions like SYNERGIC, 2T/4T toggles, or process switching. This is ideal if you prefer tactile controls over digital menus and want to change settings quickly mid-job.

Setup and switching voltages

You’ll like that the unit supports both 110V and 220V, making it flexible for home garages as well as workshop settings. The included adapter helps you switch between voltages without needing a specialized electrician.

Practical voltage tips

On 110V you’ll have enough power for light to medium welding tasks; on 220V you’ll unlock higher output and better performance for thicker materials. Keep in mind that input voltage impacts duty cycle and the maximum sustainable current, so if you plan on sustained heavy welding choose 220V for better performance.

Torch, consumables, and maintenance

A reliable torch and well-chosen consumables are crucial for consistent welding. You’ll be pleased that spare contact tips and drive rollers are included.

Torch care and tip selection

The 14AK torch is a common, serviceable unit. Replace contact tips at the first sign of wear or spattering. Use the drive rollers that match your wire diameter and set the feed tension snug, not crushing, to avoid bird-nesting or slipping. Clean the nozzle regularly and keep the liner free from kinks or contamination.

Real-world setup suggestions

You’ll have better results if you take a few minutes to set up the machine correctly the first time. Good setup prevents common problems like wire slippage, burnback, and inconsistent arcs.

Step-by-step setup tips

• Mount the spool so it feeds straight into the drive assembly.
• Choose the correct drive roller profile for your wire (V-groove for solid wire, U-groove for soft aluminum).
• Adjust feed tension so wire advances smoothly without flattening it.
• Set shielding gas (for gas MIG and aluminum) to the recommended flow—usually moderate flow rates—checking for drafts.
• Do a short test weld on scrap to tune voltage/feed speed before welding the final piece.

Practical aluminum welding tips

Welding aluminum successfully is as much about preparation as it is about settings. You’ll get cleaner, stronger welds if you follow a few consistent habits.

Key aluminum techniques

Always clean aluminum to bare metal before welding—use a dedicated stainless brush to avoid contamination. Use a push technique for better shielding (unless your job demands a pull), and match wire diameter to thickness: .035″/.040″ works well for most home shop aluminum. Let the machine warm up briefly and test on scraps until the bead appearance is smooth and the weld pools properly.

When Lift TIG is useful (and limitations)

You’ll turn to Lift TIG for precise, low-heat starts and nicer TIG-style welds on thin materials. The feature broadens the machine’s capability for more delicate work.

What to check before TIG welding

Confirm whether a dedicated TIG torch is included or required. Many multi-process machines support TIG via a foot pedal or torch that is purchased separately. If you plan to TIG frequently, allocate budget for a proper TIG torch and gas fittings to get the best out of the Lift TIG function.

Safety considerations

You’ll want to prioritize personal protection and workshop safety when using this machine. Welding hazards are real and manageable if you take the right precautions.

Essential safety gear and practices

Wear a proper auto-darkening helmet or rated welding goggles, flame-resistant clothing, leather gloves, and safety boots. Ensure adequate ventilation for fumes, especially when flux-core or aluminum is involved. Keep a fire extinguisher nearby and clamp the ground as close to the weld as practical to avoid stray currents.

Troubleshooting common issues

You’ll encounter a few recurring issues with any welding setup; knowing what to look for saves time and frustration.

Wire feed problems

If the wire birds-nests, check spool tension, feed roller alignment, and liner condition. If wire slips, increase tension slightly and check the drive roller groove type. Replace the liner if it’s crushed or contaminated.

Poor arc or spatter

If the arc is unstable, verify shielding gas flow and nozzle cleanliness. Too much spatter can signal incorrect polarity, wrong gas mix, or improper voltage/wire feed settings.

Inconsistent aluminum feed

Aluminum feeding issues often come from incorrect roller groove, too much feed tension, or a kinked liner. Switching to a softer feed or using shorter wire lengths can help when you don’t have a spool gun.

Maintenance routine

You’ll extend the life of the machine by keeping it clean and checking wear items regularly. Preventive maintenance avoids sudden downtime.

What to check regularly

Inspect and replace contact tips and nozzles when worn. Keep the internal drive and spool path free from dust and debris. Periodically check internal connections (when powered off and unplugged) for tightness and signs of overheating. Replace any worn liners or hoses.

Pros and cons

You’ll want a balanced view before buying. Here are the likely strengths and limitations based on the design and included items.

Pros

• Multi-process flexibility for one device.
• Dual voltage (110V/220V) increases usability in different locations.
• Simplified aluminum MIG claims reduce the need for extra hardware.
• Easy-to-use control layout with SYNERGIC, 2T, and 4T modes.
• Good starter accessory set included—wire spool, tips, drive rollers.

Cons

• 155A class limits very heavy-gauge welding or long continuous travel at high amps.
• Lift TIG capability may require additional TIG torch accessories not included.
• For heavy or prolonged aluminum welding, a spool gun might still be preferable.
• Duty cycle at higher amps likely limited; 220V recommended for heavier work.

Who this machine is best for

You’ll find this machine particularly attractive if you’re a hobbyist, car restorer, small fabricator, or DIYer who needs flexibility without multiple machines. It’s a strong choice for mixed-material projects and for someone who appreciates convenience when switching processes.

Who should think twice

If your work is primarily heavy industrial welding, very thick aluminum plates, or long continuous production runs, you might need higher-amperage, dedicated machines or specialized accessories like spool guns and advanced TIG systems.

How it compares to separate machines

You’ll save space and money by using one machine that covers five processes, but there are trade-offs. Dedicated MIG or TIG machines may perform better in niche tasks, but the AZZUNO balances versatility and value for non-production environments.

Value perspective

For the investment, you get a lot of versatility and practical accessories. This is a strong value proposition if your workload spans multiple processes and you don’t need industrial-level duty cycles.

Practical buying checklist

You’ll want to make sure the machine matches your priorities. Check these before buying.

• Confirm your power availability (110V vs 220V) and whether you need a hardwired installation for 220V.
• Decide if you’ll need an additional TIG torch or spool gun for aluminum-heavy work.
• Make sure included consumables match the wire sizes you plan to use.
• Consider the duty cycle implications for continuous welding tasks.

Tips for best results

You’ll get better welds faster when you follow a few simple rules. These tips are practical and based on common welding practice.

• Always clean base metal, especially aluminum, before welding.
• Use scrap practice pieces to dial in SYN mode settings before welding production parts.
• Keep spare contact tips, drive rollers, and a fresh spool of wire on hand to avoid delays.
• For outdoor work, use flux-core to avoid shielding gas issues.
• When switching processes, verify polarity, wire speed, and gas connections.

Final verdict

You’ll find that the AZZUNO Aluminum 155A MIG Welder is a compelling option for hobbyists and light fabricators who need a single, versatile welding machine. The combination of multi-process capability, dual voltage, simplified aluminum MIG claims, and included consumables creates a strong package for home workshops and small projects. If you plan heavier industrial work or continuous high-amp welding, you should evaluate duty cycle and consider dedicated equipment, but for general-purpose use this machine offers ample utility and good value.

Frequently asked questions

You’ll likely have a few questions before purchasing—here are answers to common ones.

Q: Can you weld thick aluminum with this machine? A: You can weld a fair range of thicknesses, especially with proper technique and on 220V. Very thick aluminum may exceed the machine’s optimal capacity; in those cases, a higher-amperage machine or a spool gun might perform better.

Q: Is a spool gun required for aluminum? A: The unit claims simplified aluminum welding without a spool gun or Teflon liner, and for many light-to-medium tasks this will be true. If you plan long weld runs or heavier aluminum, a spool gun can still be a worthwhile upgrade.

Q: Does the package include a TIG torch? A: The packing list does not explicitly show a TIG torch, though the machine supports Lift TIG mode. Check the product listing or contact the seller to confirm whether a TIG torch is included or sold separately.

Q: What gas should you use for aluminum MIG? A: Typically, 100% argon is recommended for MIG welding aluminum. For steel, argon/CO2 mixes (e.g., C25) are common. Always follow the wire and gas manufacturer’s recommendations.

Q: How easy is it to switch between 110V and 220V? A: The package includes an adapter and is designed for dual-voltage use. Follow the manual carefully for safe switching and wiring instructions.

If you want, you can ask for a quick setup checklist, recommended starting settings for common materials, or help troubleshooting a specific issue you’re seeing with the machine.

Disclosure: As an Amazon Associate, I earn from qualifying purchases.