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The AWT 155A mini stick welder is an ultra-light inverter (about 4.3 lb per the listing) that handles stick (MMA) welding and lift-start TIG. It is worth considering if you want a small welder for DIY repairs, car and trailer brackets, and light steel work. Skip it if you need heavy-duty production welding or an AC TIG machine for aluminum.
This AWT 155A stick welder review is based on the Amazon listing and common mini-inverter practice, not hands-on testing. Confirm the input voltage and cable package on the listing before you buy.
Quick specs at a glance
| Item | Detail |
|---|---|
| Type | Mini inverter, MMA/stick plus lift TIG (torch not assumed included) |
| Max output (listing) | 155 A |
| Thickness (listing) | Mild steel up to 13/64 in (about 5 mm) |
| Weight and size | About 4.3 lb; about 4 x 6.8 x 10.8 in |
| Features (listing) | Hot Start, Arc Force/anti-stick, overcurrent and thermal protection, VRD mentioned |
| Suggested rods | E6013, 6011 and 7018 per the listing |
| Helmet | Not included |
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What the AWT 155A is and who it suits
It is one of the smaller welders in its class, which makes it handy for a toolbox, truck or hobby corner. Lift TIG means you touch the tungsten to the work and lift to start the arc, with no high-frequency start. It needs a TIG torch and argon, which may or may not be supplied.
- Good for: home repairs, light automotive brackets, gates, learning stick basics, jobs at a customer’s site.
- Less suited to: all-day shop work, thick structural steel, or anyone expecting a premium unit’s arc smoothness.
Understanding the 155 A rating
The 155 A figure is the maximum output. How long you can run at that level depends on the duty cycle, and mini welders usually have a short duty cycle at maximum current. The listing’s 13/64 in thickness is best read as the upper limit for single-pass or carefully prepared joints.
On thin metal, turn the amperage down. Use smaller rods, such as 3/32 in, on sheet or tubing to reduce burn-through. Check the manual for the duty cycle table, and let the machine cool when the thermal indicator comes on.
How to check it fits your setup
- Input power: Verify the listing’s input voltage (some mini inverters accept 110V, 220V or both). Match the plug and breaker; do not rewire a plug to fit.
- Output at your voltage: Output is often reduced on lower-voltage input. Look for a current table in the manual.
- Rods: The listing mentions E6013, 6011 and 7018. Use rod sizes listed in the manual and keep 7018 dry.
- Accessories: Check that an electrode holder, ground clamp and cable lengths are included. The listing mentions a power cord of about six feet; verify before ordering.
- TIG use: Look for a torch, regulator and argon supply if you plan to use lift TIG.
- Support: Warranty terms vary by seller; confirm the warranty period and return window before purchasing.
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Pros and limitations
Pros
- Very light and compact.
- Hot Start and anti-stick help new welders start rods.
- Stick and lift TIG in one small unit.
- Protection features for overload and overheating.
Limitations
- Short duty cycle at high amps is typical for this class.
- No AC output, so not for aluminum TIG.
- Lift TIG is basic and needs extra accessories.
- Brand support and parts availability are limited compared with major welder makers.
Using it safely
- Helmet is not included. Use an auto-darkening helmet and shade appropriate for your amperage; see our Lincoln Viking 2450 helmet review for an example.
- Wear dry leather gloves and flame-resistant clothing.
- Ventilate when welding coated, painted or galvanized steel, and remove coatings first.
- Keep rods dry and use a short, heavy-gauge extension cord only if needed.
- Practice on scrap before critical repairs.
Alternatives and related guides
- compact 110V stick welder review: a similar lightweight stick welder listing
- YesRight 200A mini stick welder review: another mini inverter to compare
- ESAB Rogue ES 180i review: a branded dual-voltage stick/TIG option
- E6013 rod review: an easy rod for beginners
Frequently Asked Questions
Can the AWT 155A mini welder weld aluminum?
No. It is built for steel and stainless with stick or lift TIG on DC. Aluminum needs AC TIG or MIG with a spool gun and argon, so choose a different machine if aluminum is your main material.
What rods work with the AWT 155A?
The listing points to E6013, 6011 and 7018. Pick the rod size from the manual and metal thickness, with 3/32 to 1/8 in typical for small inverters. Keep 7018 rods stored dry.
Does the AWT 155A include a helmet?
The listing does not include a helmet, so buy one separately. An auto-darkening helmet with an appropriate shade range is the usual choice, along with leather gloves and fire-resistant clothing.
Is a mini welder like this good for beginners?
It can be, thanks to Hot Start and anti-stick. Beginners should learn arc length and rod angle on scrap, and use a ventilated area. Expect limits on thick steel and long, high-amp runs.
Final verdict
The AWT 155A is a very light stick and lift-TIG inverter for small steel repairs and learning. Check its input voltage, duty cycle and included accessories on the listing first, and treat the 155 A figure as a maximum rather than a continuous rating.
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