Lincoln Power MIG 140 MP
#5 in 120 VFull review
A versatile 120 V shop welder for hobbyists and auto body work who want stick and TIG on the same box. Pick a dual voltage machine if you have 240 V and weld thicker steel.
Amazon $1,178.99$1,178.99
The Lincoln Power MIG 140 MP and the Forney X-Series 140 MIGx are evenly matched, rated 3.2 and 3.1. The Lincoln Power MIG 140 MP leads on processes. The Forney X-Series 140 MIGx wins on value and weight. The Forney X-Series 140 MIGx costs $749 less ($429.99 vs $1,178.99).
Forney X-Series 140 MIGx
#7 in 120 VFull review
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.
Forney $429.99$429.99
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?
- Choose the Lincoln Power MIG 140 MP for processes (MIG, flux-core, stick, lift TIG, takes a spool gun for aluminum vs MIG, flux-core).
- Choose the Forney X-Series 140 MIGx for value ($3.07 per amp ($429.99, 140 A maximum) vs $8.42 per amp ($1,178.99, 140 A maximum)) and weight (20.3 lb vs 34.5 lb).
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 weight | Lincoln Power MIG 140 MP | Forney X-Series 140 MIGx |
|---|---|---|
| Overall rating | 3.2/5 | 3.1/5 |
| Value 30% | 0 $8.42 per amp ($1,178.99, 140 A maximum) | 53 $3.07 per amp ($429.99, 140 A maximum) |
| Duty cycle 20% | 71 60% at 95 A, about 28% at full output | 10 30% at 90 A, about 12% at full output |
| Processes 15% | 100 MIG, flux-core, stick, lift TIG, takes a spool gun for aluminum | 40 MIG, flux-core |
| Weight 10% | 57 34.5 lb | 88 20.3 lb |
| Warranty 25% | 50 3-year warranty on the machine | 50 3-year warranty on the machine |
Specifications
| Lincoln Power MIG 140 MP | Forney X-Series 140 MIGx | |
|---|---|---|
| Output | ||
| Input voltage | 120 V | 120 V |
| Maximum output | 140 A | 140 A |
| Rated duty cycle | 60% at 95 A | 30% at 90 A |
| Thickest steel, one pass | - | 0.25 in |
| Inverter | - | Yes |
| Processes and wire | ||
| Gas MIG | Yes | Yes |
| Stick | Yes | No |
| TIG | Lift TIG | No |
| Spool gun ready | Yes | No |
| Wire sizes | 0.025 to 0.045 in | 0.024 to 0.035 in |
| Synergic settings | No | Yes |
| Build | ||
| Weight | 34.5 lb | 20.3 lb |
| Warranty | 3 years | 3 years |
| Released | 2019-09 | 2026-05 |