Eastwood 140 Amp MIG Welder

Item #33970

Eastwood 140 Amp MIG Welder
New and improved features and technology to weld sheet metal up to 3/16" steel. Great machine for sheet metal projects and light metal fab.
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Eastwood's MIG 140 Welder

Our Eastwood R&D guys have been constantly improving our incredibly popular MIG 135 since 2009 and are proud of this newly designed and improved MIG 140 that's great for light metal fab and all of those sheet metal projects and repairs that are necessary in auto restoration. The modern IGBT Inverter technology means a lightweight, portable, powerful unit that can even be powered by a generator. The new 2T/4T modes and tack weld feature add comfort and performance to this machine.

The high quality welds in sheet metal and thin steel as well as the overall performance matches and often exceeds more expensive MIG welders. This 120v unit comes with a Tweco-style torch, gas regulator and consumables for MIG welding up to 3/16-inch thick. It’s also capable of doing flux-core work when you don't have a gas bottle. You can even add a spool gun to weld aluminum (item 20172).

New and Improved Features

Check out these awesome improvements over other machines.

  • Latest IGBT Inverter technology
  • Lightweight and portable at less than 25 lbs
  • Metal drive motor for smoothest operation
  • 2T/4T modes for comfort during long welds
  • Tack Weld setting for consistency with sheet metal projects
  • Portability - lightweight and can be powered by a generator

Eastwood MIG 140 Features:

  • Operates on 120V
  • Welds mild and stainless steel, 24 gauge to 3/16"
  • 30-140 amp welding range
  • Latest IGBT inverter technology
  • Lightweight and portable at less than 25 lbs
  • Metal drive motor for smoothest operation
  • Uses .023 - .035 wire in 4" and 8" spools
  • Long ground, torch and power cables
  • 2T/4T modes for long welds
  • Tack weld setting for consistency in sheet metal
  • 30% duty cycle at 90 Amps and 60% at 65 Amps
  • Includes regulator and hose for optimum MIG welding
  • Uses common Tweco style consumables
  • Can also be used for Flux-Core welding if you don't have gas
  • Compare to similar welders that sell for hundreds more
  • Backed by Eastwood's no-hassle return policy and 3-year warranty


Eastwood MIG 140 Welder
Eastwood MIG 140 Welder

Steel and Aluminum MIG Welder

The MIG 140 comes complete (except for the gas cylinder) and is ready to weld 24 gauge to 3/16-inch mild steel and stainless. Connect a spool gun (20172 sold separately) and you can also weld 14 gauge to 1/8-inch aluminum. With a 30 to 140 amp welding range, this high-quality MIG welding machine has a 30 percent duty cycle at 90 amps and a 60 percent duty cycle at 65 amps, giving you the power needed to keep welding until the job is done.

The metal drive motor feeds the wire smoothly for the best operation and the infinitely adjustable wire speed and heat settings allows you to precisely control the machine. If you don't have a gas bottle, or are away from your shop, use the flux core wire for your welding project.

Eastwood MIG 140 Welder

Weld Aluminum with a Spool Gun

Many cars and trucks have aluminum parts, or you may need to weld aluminum for a metal fabrication project, and with a spool gun you can weld 14-gauge to 1/8-inch aluminum. Quickly and easily connect or remove it as needed for working on different parts and panels. The spool gun is sold separately and is a great addition to your MIG 140 and you can check out item 20172 here.

Eastwood MIG 140 Welder

Precision Drive Motor

The drive roller mechanism, which is the heart of any MIG welder, is designed to our high specifications and delivers flawless wire feed without skipping or slipping on the wire. That's why the MIG 140 has a quality METAL drive motor. This means you'll get a great puddle and solid welds without having to go back and "touch up" spots. Beware of other units with much lower quality equipment!

Eastwood MIG 140 Welder

High-Value Welders from Eastwood

This 140-amp MIG welder has everything you need to get started, just add a bottle of shielding gas. It includes a precision metal drive motor, regulator with hose, Tweco-style torch, tips and accessories, modern features and technology. A "Quick Setup" welding chart specifies settings for each material thickness, eliminating guesswork and assuring complete penetration.

The unit is backed by Eastwood's No-Hassle 90-day return policy and industry leading 3-year manufacturer's warranty. We even provide tips and tricks on MIG welding in the Eastwood Garage that will get you started and improve your welding.

Eastwood MIG 140 Welder


  • MIG 140 Welder
  • MIG Wire Spool 0.023 (0.7mm), 4 inch (2 lbs)
  • Gas Regulator with hose
  • 8.5' Cable and Ground Clamp
  • MIG Torch, Nozzle, 0.023" (0.7mm) Contact Tip and 8.5' Cable
  • Face shield with lens and handle
  • Welding brush/hammer
  • Contact tip wrench
  • Additional contact tips (.030" and .035")
  • Instruction Manual
  • 3-Year “No Hassle” Warranty


Rated Electrical Input: 120 VAC; 24 AMP
Required Breaker Size: 20 amp
Power Voltage: 1 Phase, 120VAC, 50/60 Hz
Power Cord Receptacle Plug: NEMA 5-15P
Max Voltage at No Load: 56 V DC
Rated Duty Cycle:

120V: 30% @ 90 Amps

120V: 60% @ 65 Amps

120V: 100% @ 50 Amps

Torch Consumables: Tweco style nozzle and contact tips
Wire Feed Rate (IPM/Inches Per Minute):

120V: 80 - 314 IPM

Wire Sizes:

0.023”(0.6mm) – 0.035”(0.9mm) mig wire

0.030”(0.8mm) – 0.035”(0.9mm) flux core wire

Welding Wire Spool: 4” and 8” spool, up to 11 lbs
Maximum Welding Thickness - Steel: 3/16"
Output Current Range:

120V: 30 - 140 Amps

Weight: 24.15 lbs (11 kg)
Overall Dimensions: 18” X 8.5" X 13.25”



Always wear a minimum #10 shade helmet, leather welding gloves and long sleeve shirt and long pants.

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