Introduction to the Weldpro 155 Series
Not every workshop or DIY enthusiast requires a heavy-duty welding machine. Many projects involve materials with thicknesses of 1/4 inch or less, making a versatile and affordable welder a practical choice. The Weldpro 155 series stands out as an accessible option that balances functionality with cost-effectiveness, offering a range of features suitable for small to medium projects.
What’s Included in the Package
- MIG 155GSV Welder Unit
- MIG Welding Torch with 8 ft. cable
- Ground Clamp with 8 ft. cable
- Stick Electrode Holder (Stinger)
- Set of three wire drive rollers (two smooth, one knurled)
- Two spool tension springs (medium and high tension)
- Gas Flow Meter
- Gas Hose
- Contact Tip
- Sample spool of 0.030 flux-cored wire
- 115V to 230V power adapter
- User Manual and documentation
Technical Specifications Overview
| Welder Type | MIG, Flux-Cored, Stick (with optional TIG torch) |
| Input Voltage | 115V / 230V |
| Output Amperage (115V) | 30 – 120A for MIG, 30 – 110A for Stick |
| Output Amperage (230V) | 30 – 155A for MIG, 30 – 140A for Stick |
| Duty Cycle (115V) | 30% at 120 A |
| Duty Cycle (230V) | 30% at 155 A |
| Voltage & Amp Control | Infinite adjustment from minimum to maximum |
| Wire Feed Speed | 78 – 396 IPM with infinite control |
| Wire Spool Capacity | Supports 4-inch spools |
| Wire Diameter Compatibility | MIG: 0.023 – 0.030 in., Flux-cored: 0.030 – 0.040 in. |
| Transformer Technology | IGBT Inverter System |
| Suitable Materials | Steel, Stainless Steel |
| Maximum Weld Thickness | Up to 1/4 inch (22 gauge to 8 gauge) |
| Power Switch Position | Back Panel |
| Electrode Holder | Included |
| Operational Modes | 2T and 4T Trigger Control |
| Dimensions | 20.7 in. (H) x 11.6 in. (W) x 22.4 in. (L) |
| Weight | Approximately 36 lbs. |
| Warranty Period | 3 years |
| WeldGuru Rating | ★★★★☆ |
| Price Indicator | Check the latest price on Amazon |
Advantages and Disadvantages
Pros
- Cost-effective for small projects
- Dual voltage operation (115V and 230V)
- Multi-process capabilities: MIG, flux-core, and stick welding
- Compact and portable design
- Includes 2T and 4T trigger modes for versatile welding
- Built-in safety features with current off wire feed system
- Inverter-based technology ensures efficiency
- Gas regulator and hose included for MIG welding
- Suitable for stick welding out of the box
- Three-year warranty offers peace of mind
Cons
- Duty cycle may be limited for heavier continuous use
- Limited to 4-inch wire spools, restricting larger projects
- No official guidelines for generator compatibility
- Lead lengths may be short for some setups
- Not spool gun ready for aluminum welding
- Plastic housing on wire drive unit
- Manuals can be somewhat difficult to interpret
Comparative Analysis: Weldpro 155GSV vs. 155GD
If your primary focus is welding aluminum, the Weldpro 155GSV might not suffice, as it does not support spool guns. For aluminum work, the Weldpro MIG155GD variant is designed to accept spool guns, making it a more versatile option. The GD version also features an improved user manual and additional capabilities, making it a better choice for users intending to work with aluminum or seeking extra flexibility.
Market Alternatives for Small-Scale Welding
If your projects mainly involve MIG welding with occasional tack or spot welding, the Eastwood MIG 140 is an excellent alternative. It offers dedicated spot welding mode, accepts both 4-inch and 8-inch spools, and includes a Tweco-style MIG gun for easy maintenance and parts replacement. Its lighter weight and smaller footprint make it ideal for mobile or small-shop applications. Transitioning from multi-process to dedicated MIG welding can provide better performance in specific tasks like auto body repairs or smaller fabrication jobs.
| Weldpro MIG155GSV | Eastwood MIG 140 | |
|---|---|---|
| Input Power | 115 / 230V | 120V |
| Duty Cycle | 30% @ 120A | 30% @ 90A |
| Spool Sizes | 4 in. | 4 & 8 in. |
| Spot Welding Mode | ⛔ | ✅ |
| 2T & 4T Modes | ✅ | ✅ |
| Spool Gun Compatibility | ⛔ | ✅ |
| Stick Welding | ✅ | ⛔ |
| Dimensions | 20.7 in. x 11.6 in. x 22.4 in. | 18 in. x 8.5 in. x 13.25 in. |
| Weight | 35.7 lbs. | 25 lbs. |
| Price | Check latest on Amazon | Check latest on Eastwood |
Important Considerations Before Purchasing the Weldpro 155
Welding Aluminum
The Weldpro MIG155GSV does not support aluminum welding due to the absence of a spool gun port. If working with aluminum is a priority, consider the MIG155GD or Eastwood MIG 140, both of which are equipped for such applications.
Lead Lengths
The standard 8-foot leads may be insufficient for some setups, especially in larger workshops or outdoor environments. You might need to upgrade or extend these cables to improve accessibility and comfort during welding tasks.
Usage Scope
This machine is best suited for small workshops and hobbyist projects, not for continuous heavy-duty industrial use. The limited duty cycle and 4-inch wire spool capacity make it ideal for lighter tasks rather than extensive manufacturing.
Key Features and Benefits
Cost-Effectiveness
The Weldpro 155 series provides an economical solution for small-scale welders, hobbyists, and auto repair enthusiasts, combining multiple welding processes at a reasonable price point.
Dual Voltage Flexibility
Supporting both 115V and 230V power supplies, the unit offers versatility and convenience, especially in environments with varying power sources. The included power adapter simplifies switching between voltages.
Portability
Designed with mobility in mind, the welder features a compact form factor and a convenient carrying handle, facilitating easy transport between work sites or within a workshop.
Multi-Process Compatibility
With the ability to perform MIG, flux-core, and stick welding, this device caters to a broad spectrum of projects, from simple repairs to more complex fabrications. The optional TIG torch extends its versatility even further.
Operational Modes
The inclusion of 2T and 4T trigger modes enhances control during long or complex welds, reducing operator fatigue and improving precision. This feature is especially useful for extended welding sessions or in challenging positions.
Customer Support and Service
Weldpro demonstrates commendable customer service, with quick response times and knowledgeable support staff. This commitment offers added reassurance for users concerned about warranty or technical issues.
Final Thoughts
The Weldpro 155GSV is a solid choice for small shops, DIYers, and hobbyists seeking a multi-functional, budget-friendly welding solution. Its support for multiple welding processes, portability, and dual voltage operation make it a versatile tool. However, its limited duty cycle and inability to handle aluminum with a spool gun might be drawbacks for those with more demanding requirements. For specialized tasks like aluminum welding, exploring dedicated or more advanced models is advisable. Overall, this welder provides excellent value for lighter projects and small-scale fabrication work.
Related Products from Weldpro
Explore other Weldpro offerings such as the Digital TIG 200 and the 200 Multi-Process Welder for expanded capabilities and higher power options.