PRO MIG® 140


The PRO MIG® 140 wire feeder welder is setup for gas-less flux-cored welding to weld common steel.


Pro-MIGĀ® 140 120 volt AC input compact wire welder is an excellent choice for light fabrication or auto, home or farm projects. Its simple two-knob control makes it easy to tackle thin steel, stainless or aluminum sheet metal with MIG or thicker steel with flux-cored welding. It has a heavy-duty wire drive system, brass-to-brass gun connection, durable cast aluminum gear box and easy-turn numeric drive tension indicator. Its capable performance makes dialing in applications easier and yields a smooth arc with minimal spatter.


  • Fully adjustable drive system reduces the chance of wire tangling and crushing.
  • Brass-to-brass gun connection enhances conductivity.
  • Durable cast aluminum gear box delivers added drive torque and quiet operation.
  • Easy-turn numeric drive tension indicator identifies optimized ranges for different wire diameters.
  • Smooth arc starts with minimal spatter.
  • Wide 30-140 amp welding output range.
  • MIG weld 24 gauge up to 3/16 in. (4.8 mm) sheet metal in a single pass. Weld up to 1/2 in. (12.7 mm) steel using self-shielded Lincoln Electric Innershield (FCAW-S) wires.


Warning -

Cancer and Reproductive Harm -


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Machine Inputs & Outputs

Phase 1: Input Voltage #1 (Voltage/Phase/Hertz) 120/1/60

Product Weights & Dimensions

Dimensions (H x W x D) 13.7 in x 10.15 in x 17.9 in (347 mm x 258 mm x 454 mm)
Net Weight 50 lbs (22.7 kg)


Machines Processes MIG (GMAW)
Flux-Cored Gas-Shielded (FCAW-G)
Max Rating 140
Open Circuit Voltage 33V
Work Lead Connector Type Tweco
Welding Gun Cable Assembly Length 10FT
Work Cable Length 10 FT
Spool Gun Compatible (Duty) Light

Wire and TIG Feeders

Number of driven rolls 1 roll
Wire Feeders Processes MIG
Flux Cored
Contact Tips Included Yes
Hand Shield Included No
Input AC Voltage 120
Instructional Media Included Yes
Safety Listing CSA Yes
Safety Listing UL Yes
Sample Flux Wire Included Yes
Sample MIG Wire Included Yes
Wire Feed Duty Cycle 20%

Basic Specification

Input Voltage 110/115/120
Input Current 20A
Input Hertz 60
Input Power 120/1/60
Input Phase 1
Mode Icon CV
Output Range 30-140A
Polarity DC
Rated Output 90A/19V/20%

Stick Welders

Welding Gun Cable Assembly Length 10FT
Ground Cable Length 10 FT


Warranty 3 Years