Forney X-Series 140 MIGx

Last updated: November 1, 2026

Forney X-Series 140 MIGx
3.1/5#7 of 10 in 120 V welders
3.1

A small, easy 120 V MIG for auto body, sheet metal and light repairs. TruSet and a 3 year warranty make it a safe first gas welder.

  • 140 AOutput
  • 30% at 90 ADuty cycle
  • MIG, flux-coreProcesses
  • 120 VInput
Check price at Forney$429.99

Price checked November 1, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros
  • Welds with gas for clean sheet metal work or with flux core outdoors, from a household outlet
  • TruSet picks voltage and wire speed from the material, so beginners get a good bead fast
  • About 20 lb, light enough to carry to the car or the fence line
  • 3 year warranty, longer than most budget 120 V machines
Cons
  • Rated 30% duty at 90 A, so it tires on long beads at full output
  • No spool gun option for aluminum
  • Sold only through Forney and hardware stores so far, no Amazon listing

How it scores

The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its input voltage. How we rank explains each one.

Specifications

Model number363
Output
Input voltage120 V
Maximum output140 A
Rated duty cycle30% at 90 A
Thickest steel, one pass0.25 in
InverterYes
Processes and wire
Gas MIGYes
StickNo
TIGNo
Spool gun readyNo
Wire sizes0.024 to 0.035 in
Synergic settingsYes
Build
Weight20.3 lb
Warranty3 years
Released2026-05

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