AZZUNO 155A Dual-Voltage MIG Welder vs AZZUNO 145A 4-in-1 MIG Welder: Spec Comparison
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When comparing the azzuno 155a dual voltage mig welder vs 145a 4 in 1 mig welder, you see two versatile multi-process machines from the same brand. Both units support dual-voltage input and offer MIG, Stick, and Lift TIG capabilities. The main difference lies in their maximum amperage and specific welding modes. The 155A model adds Aluminum MIG and Synergic control, while the 145A focuses on a compact design with Stick-specific enhancements like Arc Force.
Key differences
| Aspect | AZZUNO 155A Dual-Voltage MIG Welder | AZZUNO 145A 4-in-1 MIG Welder |
|---|---|---|
| Maximum Amperage | 155A | 145A |
| Welding Processes | 5-in-1: Flux Core, Gas MIG, Aluminum MIG, Stick, Lift TIG | 4-in-1: Gas MIG, Flux Core MIG, Lift TIG, Stick |
| Dimensions | 13" L x 5.7" W x 8.5" H | 15" L x 5.7" W x 8.8" H |
| Display | not listed | Oversized LED display |
| Stick Welding Features | not listed | VRD, Arc Force, Hot Start |
| MIG Control Modes | SYN, 2T, 4T | SYN, 2T, 4T, SPOT |
Which one should you choose?
Choose AZZUNO 155A Dual-Voltage MIG Welder if
- You need to weld aluminum using the included Aluminum MIG capability.
- You prefer a more compact footprint with a length of 13 inches.
- You want the higher 155A output for slightly thicker materials.
Choose AZZUNO 145A 4-in-1 MIG Welder if
- You value an oversized LED display for easier parameter reading.
- You require advanced Stick welding controls like Arc Force and Hot Start.
- You need the SPOT welding function for timed tacks.
Verdict: Choose the 155A model if aluminum welding or a smaller physical size is your priority. Select the 145A model if you want a clearer digital display and specialized Stick welding adjustments. Both machines share dual-voltage flexibility and core MIG/Stick/TIG functions.
AZZUNO 155A vs 145A Specs
Welding modes
Product A offers five distinct welding processes: Flux Core MIG, Gas MIG, Aluminum MIG, Stick, and Lift TIG. Product B supports four modes: Gas MIG, Gasless Flux Core MIG, Lift TIG, and Stick. The key difference is that Product A explicitly includes Aluminum MIG as a standard mode, while Product B does not list aluminum-specific processing. Both handle Gas MIG, Flux Core, Stick, and Lift TIG tasks. If you need to weld aluminum without manual mode adjustments, Product A provides that capability out of the box. Product B focuses on the core four processes. This makes Product A more versatile for aluminum projects.
Amperage output
Product A is rated at 155A, while Product B is rated at 145A. This 10-amp difference indicates that Product A can deliver higher current output. Higher amperage generally allows for welding slightly thicker materials or using larger diameter wire more effectively. Both machines support dual-voltage input, which helps maintain performance across different power sources. The 155A rating on Product A suggests it is built for slightly more demanding tasks than the 145A unit. For light to medium duty work, both are sufficient. However, the higher spec on Product A gives you a bit more power reserve.
Wire compatibility
Product A supports up to 2 lbs wire spools and handles .030", .035", and .040" aluminum wire, plus .030" and .035" flux core and solid wires. It also handles .045" aluminum in manual mode. Product B supports .030", .035", and .040" flux-cored wire, .030" solid wire, and E6013 electrodes. Product A explicitly lists compatibility with larger aluminum wires (.040" and .045"), whereas Product B does not mention aluminum wire sizes. Both handle standard flux core and solid steel wires. If you plan to use aluminum wire, Product A provides clearer specifications for various diameters, offering better flexibility for that specific material.
Display and controls
Product B features an oversized LED display with a clear layout for intuitive operation and faster parameter adjustment. It also includes a manual wire feed button for easy loading. Product A uses a simpler interface with just two buttons and two knobs, focusing on effortless operation for beginners. Product B’s digital screen likely provides more precise visual feedback on settings. Product A’s analog-style controls may be preferred by users who want simplicity without a screen. If you value seeing exact parameters on a large screen, Product B has the advantage. Product A is better if you prefer minimalistic, tactile controls.
Stick welding features
Product B includes advanced stick welding controls, specifically adjustable VRD (Voltage Reduction Device), Arc Force, and Hot Start settings. These features enhance safety, arc ignition, and weld stability during stick welding. Product A lists Stick welding as a supported process but does not specify these advanced controls in its features. The inclusion of VRD, Arc Force, and Hot Start on Product B indicates a more refined experience for stick welding tasks. If you frequently use stick welding, these controls can make a significant difference in performance. Product A covers the basic requirement, but Product B offers superior control for this specific process.
Which AZZUNO Welder Fits Your Needs
Aluminum welders needing five modes
Product A offers five welding modes, including dedicated Aluminum MIG. It supports .040" aluminum wire in manual mode and includes .045" aluminum wire in the box. This makes it the better choice if you frequently join aluminum parts and want a machine designed specifically for that material without extra setup.
Users wanting clear LED display
Product B features an oversized LED display for clear visibility and intuitive operation. It also includes Stick mode controls like Arc Force and Hot Start. If you prefer a large screen to monitor settings and need precise Stick welding adjustments, this unit provides the visual and control benefits you need.
Those preferring lighter weight
Product B weighs 13 pounds, which is slightly heavier than Product A's 12 pounds. However, Product A is more compact at 13 inches long versus Product B's 15 inches. If you prioritize a smaller footprint for storage or transport, Product A's reduced length offers a tangible advantage for tight spaces.
The products compared
AZZUNO 155A Dual-Voltage MIG Welder
Best for: Aluminum and steel welding versatility
- Welding Process
- TIG, Stick, MIG
- Input Voltage
- Dual Voltage
- Material
- Aluminum
- Dimensions
- 13 × 5.7 × 8.5 inches
- Weight
- 12 pounds
View on Amazon: AZZUNO 155A Dual-Voltage MIG Welder Affiliate link
The AZZUNO 155A is a 5-in-1 MIG welder supporting Flux Core, Gas MIG, Aluminum, Stick, and Lift TIG processes. It operates on 110V or 220V dual voltage and weighs 12 pounds. The unit measures 13 x 5.7 x 8.5 inches. It includes SYN, 2T, and 4T modes for flexible control. You get included aluminum and flux core wire, plus contact tips. This machine suits users needing versatile material handling in a compact form.
Pros
- Supports 5 welding modes including Aluminum MIG and Lift TIG
- Dual voltage input for 110V or 220V operation
- Includes 1 lb aluminum wire and 1 lb flux core wire
- SYNERGIC mode auto-adjusts voltage and wire speed
- Compact size at 13 x 5.7 x 8.5 inches
Cons
- TIG torch is not included in the package
- Aluminum welding requires manual mode for .045" wire
- Weighs 12 pounds, adding portability weight
Good fit if
- You need to weld aluminum and steel with one machine
- You want a compact unit under 13 inches long
- You prefer dual voltage flexibility for home or shop use
Skip if
- You require a complete TIG setup without buying extra parts
- You need a lightweight unit under 10 pounds
- You only weld thick steel and do not need aluminum capabilities
Verdict: AZZUNO 155A 5-in-1 MIG Welder fits users who need aluminum welding and dual voltage in a small footprint. You get a versatile tool for mixed materials, provided you buy a TIG torch separately.
AZZUNO 145A 4-in-1 MIG Welder
Best for: versatile general repair and fabrication work
- Welding Process
- TIG, Stick, MIG, Flux Core
- Input Voltage
- Dual Voltage
- Features
- Synergic Control
- Weight
- 12 pounds
View on Amazon: AZZUNO 145A 4-in-1 MIG Welder Affiliate link
This AZZUNO unit is a 145A dual-voltage welder supporting Gas MIG, Flux MIG, Lift TIG, and Stick processes. It weighs 12 pounds and measures 5.7 x 15 x 8.8 inches. The machine features an oversized LED display and smart synergic MIG control. You get included accessories like a 14AK torch and wire. It suits users needing versatile process options in a compact, portable package.
Pros
- Supports four welding processes: Gas MIG, Flux MIG, Lift TIG, and Stick
- Dual-voltage input for 110V or 220V compatibility
- Includes 14AK MIG torch and various consumables in the package
- Features synergic MIG control with 2T, 4T, and Spot functions
- Compact dimensions of 5.7 x 15 x 8.8 inches
Cons
- Lower amperage output of 145A compared to the 155A competitor
- Lift TIG process is less versatile than DC TIG for aluminum
- No aluminum-specific welding capability listed in specifications
Good fit if
- You need a single machine for MIG, Stick, and TIG tasks
- You require dual-voltage input for flexible power source options
- You value a compact unit that includes a torch and wire
Skip if
- You primarily weld aluminum and need specialized AC/DC TIG
- You require higher amperage for thicker steel materials
- You prefer a machine with a digital amperage display over LED settings
Verdict: AZZUNO 145A 4-in-1 MIG Welder fits users who want process versatility in a small footprint. It is ideal for general repair work where dual-voltage input and included accessories matter more than maximum amperage.
Specifications side by side
| Spec | AZZUNO 155A Dual-Voltage MIG Welder | AZZUNO 145A 4-in-1 MIG Welder |
|---|---|---|
| Welding Process | TIG, Stick, MIG | TIG, Stick, MIG, Flux Core |
| Input Voltage | Dual Voltage | Dual Voltage |
| Material | Aluminum | not stated |
| Features | not stated | Synergic Control |
| Dimensions | 13 × 5.7 × 8.5 inches | not stated |
| Weight | 12 pounds | 12 pounds |
Frequently asked questions
Which AZZUNO welder is better for aluminum?
The AZZUNO 155A is the better choice for aluminum welding. It includes a dedicated Aluminum MIG mode and comes with .045" aluminum wire in the box. It also supports .040" aluminum wire in manual mode. The 145A model does not list aluminum as a supported material in its specifications.
Does the 145A welder support dual voltage input?
Yes, the AZZUNO 145A 4-in-1 MIG Welder supports dual-voltage input. This feature allows you to use the machine on different power sources, which is helpful for varying job sites. Both the 155A and 145A models share this dual-voltage capability for flexible power options.
What is the weight difference between the two welders?
Both welders weigh 12 pounds. There is no weight difference between the AZZUNO 155A and the 145A model. This identical weight makes them equally portable for moving between different work locations. You can carry either unit with similar ease.
Does the 155A welder come with a TIG torch?
No, the AZZUNO 155A does not include a TIG torch in the box. You must buy the TIG torch separately to use the Lift TIG process. The 145A model also supports Lift TIG, but the 155A requires this additional purchase for that specific function.
Which model is more compact in size?
The AZZUNO 155A has specific dimensions listed as 5.7 inches wide, 8.5 inches high, and 13 inches long. The 145A model only lists its weight in the provided data. You can use the 155A dimensions to estimate its footprint, but direct size comparison data is incomplete for the 145A.
Can the 145A welder perform flux core welding?
Yes, the AZZUNO 145A supports Gasless Flux Core MIG welding. It offers four modes: Gas MIG, Gasless Flux Core MIG, Lift TIG, and Stick. This makes it suitable for general repair work where process versatility is more important than maximum amperage or aluminum capability.
Is the 155A welder suitable for mixed materials?
Yes, the AZZUNO 155A is designed for mixed material versatility. It supports five welding processes, including dedicated Aluminum MIG and Flux Core MIG. This makes it ideal for users who need to switch between steel and aluminum projects without changing machines.