Forney X-Series 140 MIGx vs Lincoln Weld-Pak 90i FC

Last updated: November 1, 2026

The Lincoln Weld-Pak 90i FC and the Forney X-Series 140 MIGx are evenly matched, rated 3.1 and 3.1. The Lincoln Weld-Pak 90i FC leads on weight. The Forney X-Series 140 MIGx wins on processes. The Lincoln Weld-Pak 90i FC costs $101.99 less ($328 vs $429.99).

Forney X-Series 140 MIGx vs Lincoln Weld-Pak 90i FC

Prices were last checked November 1, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.

Which should you buy?

Scores side by side

Each factor is scored 0-100 against the same fixed reference points for every 120 V MIG welder; a clear win is highlighted. How we rank explains each one.

Factor weightLincoln Weld-Pak 90i FCForney X-Series 140 MIGx
Overall rating3.1/53.1/5
Value 30%61 $2.73 per amp ($328, 120 A maximum)53 $3.07 per amp ($429.99, 140 A maximum)
Duty cycle 20%28 30% at 90 A, about 17% at full output10 30% at 90 A, about 12% at full output
Processes 15%0 Flux-core40 MIG, flux-core
Weight 10%100 15 lb88 20.3 lb
Warranty 25%50 3-year warranty on the machine50 3-year warranty on the machine

Specifications

Lincoln Weld-Pak 90i FCForney X-Series 140 MIGx
Output
Input voltage120 V120 V
Maximum output120 A140 A
Rated duty cycle30% at 90 A30% at 90 A
Thickest steel, one pass0.25 in0.25 in
Inverter-Yes
Processes and wire
Gas MIGNoYes
StickNoNo
TIGNoNo
Spool gun readyNoNo
Wire sizes0.03 to 0.035 in0.024 to 0.035 in
Synergic settingsNoYes
Build
Weight15 lb20.3 lb
Warranty3 years3 years
Released-2026-05

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