140 Amp, 120-Volt Electric, Flux-Core Wire Welder

Features

  • Lightweight at 19 lbs.
  • Inverter technology for increased efficiency
  • Infinite control for voltage and wire speed

Specifications

Duty Cycle 25% @ 90 Amp
Weight 22 Lbs.
Input Voltage 120 Volts
Output Amperage 30-120 Amps
Capacity Mild Steel 22 ga - 1/4"

This flux-core wire welder is designed for portability and is suitable for various welding tasks. It features inverter technology for improved efficiency and control.

Model Number: RFC140

Ridgid 140 Amp, 120-Volt Electric, Flux-Core Wire Welder Review

5.0 out of 5

Welding is a skill I've always admired, and with the Ridgid RFC140 140 Amp Flux-Core Wire Welder now firmly in my toolkit, I feel equipped to take on a variety of welding tasks with confidence and precision. This compact, multi-process welder is a versatile addition to any workshop, and I’ve had the pleasure of putting it through its paces.

One of the first things that struck me about the RFC140 is its lightweight build. At just 19 pounds, it’s much easier to transport around the shop or job site compared to other welders I’ve used. This portability is a significant advantage, especially for those of us who need to move the welder frequently or work in different locations. The integrated handle adds to its ease of transport, making it a truly mobile solution for on-the-go welding needs.

The RFC140 runs on 120 volts and incorporates inverter technology, which enhances its efficiency and control. This technology, coupled with infinite control over voltage and wire speed, makes dialing in the perfect settings for various projects straightforward. Whether I’m working on thin 22 gauge steel or thicker 1/4 inch mild steel, the welder delivers consistent and reliable performance.

Setting up the RFC140 was a breeze. The clear, detailed instructions provided a step-by-step guide that even a novice could follow. Within minutes, I had everything connected and ready to go. The front panel features intuitive controls, including a polarity adapter for MIG welding and a switch to toggle between MIG, TIG, and stick welding modes. This simplicity in design doesn’t just make setup easy; it also allows for quick adjustments mid-project, which can be a real time-saver.

The welder comes equipped with a MIG gun and an electrode holder for stick welding. While it doesn’t include the TIG torch, the connections and settings for TIG welding are all there, ready for those who wish to purchase the accessory separately. I appreciated the inclusion of a gas regulator and hose, which is not always standard with welders in this class. This makes it easier to get started with gas MIG or TIG welding if you choose to move beyond flux-core welding.

In my initial tests, I started with flux-core MIG welding on some 3/16 inch steel. The RFC140 handled this effortlessly, providing smooth and clean welds with minimal spatter. The wire feed mechanism, which is all-metal, ensures reliable wire feeding, and the infinite control over wire speed allowed me to fine-tune my settings to achieve optimal results. The knurled groove for flux-core wire feed grip is a nice touch, ensuring consistent performance even with different types of wire.

Switching to stick welding, the welder didn’t disappoint. It maintained a stable arc and performed admirably with 1/16 inch electrodes, even on less-than-perfectly clean metal surfaces. This versatility is one of the RFC140’s standout features – being able to switch between welding processes without needing separate machines is incredibly convenient.

While this welder is highly capable, it does have its limitations. It’s not suitable for welding aluminum due to its lower amperage capabilities. For projects requiring aluminum welding, a higher-rated welder would be necessary. However, for steel and stainless steel up to 1/4 inch and 1/8 inch respectively, it’s more than adequate.

Maintenance of the RFC140 is straightforward. It uses standard TWECO tips, which are readily available at any welding supply store. The manufacturer recommends blowing out any accumulated dust from the internal components every six months, which is a simple task that prolongs the welder’s lifespan. And with Ridgid’s 3-year limited lifetime warranty, I feel confident in the durability and longevity of this tool.

Another aspect that impressed me was the attention to detail in the welder’s design. The cabling is thick and robust, the connectors are solid, and the overall build quality is impressive. Even the smaller features, like the waterproof on/off switch and the easy-to-access spool holder, add to the user-friendly experience.

Given its capabilities and ease of use, the RFC140 is an excellent choice for hobbyists, homeowners, and even tradesmen who need a reliable, portable welder. It’s a fantastic tool for tackling light to medium-duty welding projects, whether it’s for automotive repairs, farm equipment maintenance, or home improvement tasks.

In conclusion, I wholeheartedly recommend the Ridgid RFC140 Flux-Core Wire Welder. Its lightweight, portable design, combined with its versatility and ease of use, makes it a valuable addition to any workshop. While it may not handle aluminum welding or extremely thick materials, it excels in practically every other welding scenario. For anyone in need of a robust, multi-process welder that’s both user-friendly and efficient, the RFC140 is an outstanding choice.


Project Ideas

Business

Mobile Welding Services

Start a mobile welding business offering on-site welding repairs and custom fabrication. The lightweight and portable welder makes it easy to transport and use in various locations, providing convenience for clients who need welding services at their premises.


Metal Fabrication Workshops

Offer workshops and classes teaching metal fabrication and welding techniques. Utilize the flux-core wire welder to demonstrate different welding methods and help students create their own metal projects.


Custom Metal Fabrication

Operate a custom metal fabrication business, creating bespoke metal parts and structures for clients. This could include anything from architectural elements to specialized machinery components.


Etsy Shop for Handmade Metal Goods

Set up an Etsy shop to sell handmade metal goods like home decor, jewelry, and small furniture pieces. Use the welder to create high-quality, unique items that can attract a niche market of buyers looking for one-of-a-kind products.


Welding Repair Services

Provide welding repair services for various mechanical and industrial equipment. The welder's capacity to handle mild steel up to 1/4" thick makes it suitable for fixing a wide range of items, from farm equipment to construction tools.

Creative

Custom Metal Sculptures

Create unique and intricate metal sculptures using the flux-core wire welder. These can range from abstract art pieces to themed sculptures like animals or famous landmarks. The lightweight and portable nature of the welder allows for flexibility in working on different sizes and types of projects.


Decorative Garden Art

Design and build decorative garden art such as metal flowers, garden stakes, and wind chimes. The welder's infinite control for voltage and wire speed will help you create precise and durable pieces that can withstand outdoor conditions.


Furniture with Industrial Aesthetic

Construct custom furniture pieces with an industrial look, such as coffee tables, shelves, and chairs. Using the 140 Amp welder, you can ensure sturdy joints and create a variety of designs that incorporate both functionality and style.


Custom Metal Signage

Craft personalized metal signs for homes, businesses, and events. The welder's precision allows for detailed work, making it ideal for creating signs with intricate designs and lettering.


Automotive Customization

Use the welder to customize car parts and accessories, such as grilles, bumpers, and exhaust systems. The portability and efficiency of the welder make it a great tool for automotive enthusiasts looking to create bespoke modifications.