Forney Easy Weld 140 FC-i vs Lincoln Weld-Pak 90i FC
The two machines almost every first-time welder chooses between. One publishes more amps, the other publishes the same duty cycle and has a parts counter in your town. On a 120-volt circuit, that second thing matters more.
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The short answer
Buy the Forney Easy Weld 140 FC-i if you want the most machine for the money: a published 140 A ceiling against Lincoln's 120 A, a stated 24 gauge to 1/4 inch capacity, infinite control on both knobs, and a 20 A to 15 A adapter in the box. Buy the Lincoln Weld-Pak 90i FC if local parts matter more than rated output: 15 lb, a metal case, a published 20 to 200 ipm wire feed range, and the deepest consumable network in the category. Both publish a 30% duty cycle at 90 A, both are gasless flux-core only, both run on 120 V and both are rated to 1/4 inch — so the duty cycle is a tie and the capacity question is narrower than the amperage gap suggests.
These two are the first welder for an enormous number of people, and they are the two machines our own flux-core welders for beginners roundup puts at the top. That page ranks a field. This one is for when the field is already down to these two and you want the rest of the decision.
What the two machines publish, side by side
| Specification | Forney Easy Weld 140 FC-i | Lincoln Weld-Pak 90i FC |
|---|---|---|
| Process | Flux-core (gasless) only | Flux-core (gasless) only |
| Input power | 120 V, 20 A circuit minimum | 120 V, single phase, 60 Hz |
| Output | 140 A maximum | 20–120 A; rated 90 A at 21 V |
| Duty cycle | 30% at 90 A | 30% at 90 A |
| Steel capacity | 24 gauge to 1/4 in | Up to 1/4 in |
| Wire sizes | 0.030 and 0.035 in | 0.030 and 0.035 in contact tips supplied |
| Wire feed speed | Not published | 20–200 in/min |
| Controls | Infinite voltage and wire feed speed | Two knobs: wire speed and infinite voltage |
| Weight | 19 lb | 15 lb |
| In the box | 8 ft MIG gun, 8 ft ground clamp, 20 A to 15 A adapter | Gun with nozzle and tip, work cable and clamp, metal case |
Four rows differ in a way you would feel: the output ceiling, the published wire feed range, the weight, and what arrives in the box. Everything else ties. Both are 120 V gasless machines rated to a quarter inch with the same published duty cycle at the same current, and both take the same two wire sizes.
The duty cycle is identical, and that is the real headline
Forney publishes 30% at 90 A. Lincoln publishes a 30% duty cycle at a rated 90 A output. Those are the same figure, and it is the specification that governs how these machines feel to use far more than the amperage ceiling does.
A 30% duty cycle at 90 A means three minutes of welding in any ten, then cooling. In practice that is not the limit most beginners hit, because a beginner spends most of a session cleaning, clamping, tacking, looking at the last bead and grinding — the arc is on for a fraction of the time. Welder duty cycle explained works through why the number is smaller than it sounds and when it genuinely bites.
The consequence for this comparison is that neither machine out-works the other. They stop at the same point. Anyone choosing between them on "which will keep going longer" is choosing on a row that ties.
140 amps versus 120, and why the gap matters less than it reads
Forney's 140 A ceiling against Lincoln's 120 A is a genuine 17% more rated output, and it is the row the Forney wins outright. Both machines are rated to a quarter inch, so the extra amperage buys headroom rather than capability — a quarter-inch joint done at 120 A on the Lincoln is nearer the machine's limit than the same joint at 120 A on the Forney.
What caps both machines, though, is the wall. A 120 V, 20 A circuit can only deliver so much, and a flux-core machine drawing near its rated output on a shared household circuit trips breakers long before it reaches a thermal limit. How many amps a welder uses explains why input and output amperage are completely different numbers, and it is the reason Forney publishing a 20 A circuit minimum is more useful information than the 140 A ceiling itself.
Our honest reading: take the 140 A as a reason to prefer the Forney at equal price, not as a reason to pay a premium for it. The quarter-inch rating on both machines is also a single-pass figure on clean, well-fitted material — not a promise about structural work.
Both machines want a circuit they are not sharing
Flux-core on a 120 V machine is the single most common cause of mystery breaker trips in a home shop, and the machine is almost never the fault. A welder sharing a circuit with a freezer, a shop light and a compressor will trip in a way that feels like a defect. What size breaker you need covers it, and welder extension cords covers the other half of the problem — a long thin cord costs you voltage at the arc and looks exactly like a weak machine.
What is in the box, and what it tells you
Forney includes an 8 ft gun, an 8 ft ground clamp and a 20 A to 15 A plug adapter. Lincoln includes the gun with a nozzle and contact tip, work cable and clamp, both common contact tip sizes, and a metal carrying case.
The adapter is the most practical single item on either list. A machine specified for a 20 A circuit normally arrives with a 20 A plug that will not fit a standard household outlet, and discovering that on a Saturday afternoon is a wasted weekend. Forney shipping the adapter is a small decision that says the maker expects a first-time buyer.
The metal case is the most practical on Lincoln's. A 15 lb machine in a hard case travels and stores without the wire feed getting knocked out of alignment, which is a real failure mode for a small welder living on a garage shelf. Neither machine includes wire, a helmet, gloves or a wire brush. The welding starter kit checklist is the list of what else you have to buy before either machine does anything.
Parts, tips and the counter you can walk into
This is where Lincoln earns its price, and it is the row most comparisons skip because it is not a number.
A flux-core welder eats contact tips. They burn back, they clog with spatter, and eventually one welds itself to the wire and you need another one. Lincoln tips and nozzles are stocked at welding suppliers, farm and ranch stores and most big-box hardware chains in the United States, which means a stuck tip costs you twenty minutes. Forney's are available and perfectly good and are, for most people, a delivery.
Over a first year that is probably worth less than the price difference. Over five years, on a machine you keep as a second welder after moving up to gas MIG, it is worth more. Which way it falls depends on how long you expect the machine to stay in service rather than on anything in the spec table.
Neither of them is the thing you are actually learning
Both machines run self-shielded flux-cored wire with the polarity set for it, and getting that polarity right is the single most common first-day failure on either of them — flux-core polarity, DCEN or DCEP is the five-minute read that prevents a bad afternoon. Both will produce spatter and smoke because that is what self-shielded wire does, and flux-core welding safety covers the ventilation that needs rather than treating it as optional.
Both want 0.030 inch wire on a 120 V circuit, both want to be dragged rather than pushed, and both will burn through 16 gauge if you stop moving. The flux-core settings chart is where to start on either one, and flux-core burn through is the page for when it goes wrong.
And neither machine takes gas. If you already know you want gas MIG, buying either of these first is still usually the right call — but read flux-core vs MIG for beginners before you decide, because the bottle, regulator and gas-capable machine is a materially bigger first purchase.
Buy a helmet before you buy either machine
Flux-core produces a bright arc and a lot of spatter, and the hood that comes in a cheap bundle is the part people regret fastest. The best welding helmets for flux-core welding is scoped to this exact level, and VIKING 3350 vs Sentinel A60 is the comparison for when you decide to buy the last helmet first instead.
How we decided this
Published figures only. Every number above is Forney's or Lincoln's own as carried on their product and retailer specification listings, read on the date in the source note, and the blanks stay blank. We have welded with neither machine and say so on how we pick.
A tie gets published as a tie. The duty cycles are the same figure at the same current. That is the row most likely to govern how either machine feels, and no amount of amperage-ceiling marketing changes it.
Support is a specification. How quickly you can replace a contact tip is a real cost of ownership on a machine that consumes them, and it is why the Lincoln is a defensible buy at a higher price for less rated output.
The circuit is the real ceiling. On a 120 V machine, what the wall can deliver constrains both of these before their rated outputs do — so we weight a published circuit requirement above a published maximum amperage. If you want the wider field instead of these two, the best flux-core welders for the money and what first welder to buy are the larger versions of this decision.
What we would buy
1. The one to buy for most first welders
Forney Easy Weld 261 140 FC-i
A published 140 A ceiling, 24 gauge to 1/4 in capacity, infinite voltage and wire-speed control, and both common wire sizes — for very little money.
Forney publishes 120 V input on a 20 A circuit minimum, 140 A maximum output, a 30% duty cycle at 90 A, capacity from 24 gauge up to 1/4 inch, support for both 0.030 and 0.035 inch flux-cored wire, infinite voltage and wire-feed-speed control, an 8 ft MIG gun and 8 ft ground clamp, a 20 A to 15 A plug adapter, and a weight of 19 lb.
The reason it is the default is the pair of ends of its range. At the thin end, 24 gauge is a published figure rather than a hope — thin sheet is where a first welder does most of its damage, and a machine that states a gauge is a machine whose maker has thought about it. At the thick end, 140 A and a quarter inch is more capacity than you will use for a year and means the machine does not become the reason you cannot do a job.
Infinite control on both knobs is the quiet advantage over stepped machines. Flux-core is learned by nudging voltage and wire speed until the arc sounds right, and a machine with four fixed voltage taps will not let you land between two of them. The 20 A to 15 A adapter in the box is also a real courtesy: it means the machine plugs into the outlet you actually have on the first day.
Two honest costs. Forney's dealer and consumable network is thinner than Lincoln's — contact tips and nozzles are an online order rather than a counter visit for most people. And at 19 lb it is the heavier of the two, which matters only if it is moving between a garage and a truck.
What works
- 30% duty cycle at 90 A is unusually generous for a 120 V machine in this class
- Infinite voltage and wire-speed control rather than four fixed taps, so you can actually dial a setting in
- 19 lb — genuinely carryable to the job instead of the job coming to it
- No gas bottle, no regulator, no second purchase before your first weld
What does not
- Flux-core only. It will never run gas, so it cannot become your Level 2 machine
- Every weld leaves slag that has to be chipped and wire-brushed off
- Needs a 20 A circuit — a 15 A garage lighting circuit will trip at higher settings
2. The one to buy if you want a counter to walk into
Lincoln Electric Weld-Pak 90i FC (K5255-1)
The same 30% duty cycle at 90 A, a lower 120 A ceiling, 15 lb, a metal case and the best parts network in the category.
Lincoln publishes 120 V single-phase input, an output range of 20 to 120 A with a rated output of 90 A at 21 V, a 30% duty cycle, a wire feed speed of 20 to 200 inches per minute, two-knob control with wire speed and infinite voltage, 0.030 and 0.035 inch contact tips in the box, capacity up to 1/4 inch, a welding gun with nozzle and contact tip, work cable and clamp, a metal carrying case, and a weight of 15 lb.
Its argument is support, and on a first machine that is a stronger argument than it looks. A flux-core welder consumes contact tips continuously and nozzles regularly, and the first time one burns back and welds itself shut you want a replacement today, not on Thursday. Lincoln consumables are stocked at welding suppliers, farm stores and big-box hardware across the United States. Nothing else in this price class is.
The 20 to 120 A range starting at 20 A is also genuinely useful at the thin end, and the published 20 to 200 ipm wire feed range is a figure Forney does not state. At 15 lb it is the lighter machine and the metal case means it stores without getting knocked about.
What it costs you: a 120 A ceiling against Forney's 140 A, so less headroom on anything approaching a quarter inch. Lincoln does not publish a minimum circuit size or a gauge figure at the thin end. And it is usually the pricier of the two, for less rated output — you are paying for the badge and the parts network, which is a defensible thing to pay for but you should know that is what it is.
What works
- Infinite voltage control rather than fixed taps, so a setting can actually be dialled in rather than chosen from four
- Two knobs and nothing else — the shortest path from box to first bead of anything Lincoln sells
- 15 lb with a shoulder strap and a metal carry case, so it goes to the work
- Lincoln's dealer and consumable network is the best in the category, which matters on a first machine
What does not
- Flux-core only. It will never run gas, so it cannot become your Level 2 machine
- Costs noticeably more than a budget-brand 135 A gasless machine of similar output
- Every weld leaves slag that has to be chipped and wire-brushed off
Who this is wrong for: Anyone who wants the most rated output per dollar, or who is already comfortable ordering consumables online. Both of those point at the Forney.
3. The wire both machines want
Lincoln Electric Innershield NR-211-MP flux-cored wire
Whichever machine you buy, the wire is what decides whether the arc behaves — and a 120 V machine wants 0.030 in.
Lincoln publishes Innershield NR-211-MP as a general-purpose, all-position self-shielded flux-cored wire, available in 0.030 and 0.035 inch, rated for single and multi-pass work on mild steel and usable on DC electrode negative machines.
Both machines above take 0.030 and 0.035 inch wire, and on a 120 V machine the answer is almost always 0.030. Thinner wire needs less current for the same deposition, which means the machine spends more of its life inside its duty cycle and you burn through thin material less often. Buying 0.035 because the machine supports it is the most common first-purchase mistake here.
What it costs you: it is dearer per pound than unbranded wire of the same AWS classification, and self-shielded wire of any brand produces more smoke and more spatter than gas MIG. The smoke is the part to take seriously — see the safety page below.
What works
- Lincoln publishes full procedure tables for it, so there is a documented starting setting for every thickness
- All-position rated — it will run a vertical fillet, not just a flat bead
- Available in 1 lb, 5 lb and 10 lb spools, so a small machine does not need a big spool
What does not
- Noticeably more expensive per pound than unbranded E71T-GS wire
- Like every self-shielded wire it produces slag and more spatter than a gas process
Questions people actually ask
Is the Forney Easy Weld 140 FC-i better than the Lincoln Weld-Pak 90i FC?
On the specification sheet, mostly yes. Forney publishes a 140 A ceiling against Lincoln's 120 A, a stated capacity from 24 gauge to 1/4 inch, infinite control on both knobs, and a 20 A to 15 A plug adapter in the box.
Lincoln publishes the same 30% duty cycle at 90 A, a 20 to 200 ipm wire feed range Forney does not state, a lighter 15 lb machine with a metal case, and by far the best local consumable supply in the category. If you want parts today rather than Thursday, that is worth the price difference.
Do these two welders have the same duty cycle?
Yes. Both publish a 30% duty cycle at 90 A, which means roughly three minutes of welding in any ten before the machine needs to cool.
That is why neither machine out-works the other, and why choosing between them on endurance is choosing on a row that ties. In practice a beginner rarely reaches the limit anyway, because most of a session is spent clamping, tacking, inspecting and grinding rather than welding.
Does the extra 20 amps on the Forney matter?
It buys headroom, not capability. Both machines are rated to 1/4 inch steel, so the extra output means the Forney is working less hard at the same joint rather than doing a joint the Lincoln cannot.
What actually caps both is the 120 V circuit. A flux-core machine near its rated output on a shared household circuit trips the breaker long before it reaches a thermal limit, which is why Forney publishing a 20 A circuit minimum is more useful than its 140 A ceiling.
Which wire size should I use on a 120V flux-core welder?
0.030 inch, almost always. Both machines accept 0.030 and 0.035 inch self-shielded flux-cored wire, but thinner wire needs less current to deposit the same metal, so the machine spends more of its life inside its duty cycle and you burn through thin material less often.
Buying 0.035 because the machine supports it is the most common first-purchase mistake at this level. Save it for material at the thick end of what either machine will do.
Can either welder use shielding gas?
No. Both are gasless flux-core only - there is no gas solenoid and no provision for a regulator, so a bottle cannot be added later.
If gas MIG is where you know you are heading, that is an argument for a gas-capable machine rather than for either of these. It is not usually an argument against buying one of these first, because learning on self-shielded wire costs far less and transfers directly.
Which one is easier for a complete beginner?
They are close, and the honest answer is that neither machine is the hard part. Both use two controls, both run on a wall socket, and both have infinite voltage adjustment rather than fixed taps - which is the control arrangement that lets you land on the setting the arc actually wants.
Forney's included plug adapter removes one first-day obstacle. Lincoln's metal case and lighter weight make it easier to store and move. The polarity setting for self-shielded wire is the thing that catches people out on either machine.
What else do I need to buy with either machine?
Wire, an auto-darkening helmet, leather gloves, a wire brush and a chipping hammer, a slag-safe work surface and eye protection for grinding. Neither machine includes any of it.
You also need a 120 V circuit the welder is not sharing with anything else, and if you are using an extension cord, one heavy enough that it is not costing you voltage at the arc. A long thin cord is the most common reason a new machine seems weak.
Sources
- Forney Industries - Easy Weld 261 140 FC-i published specifications as carried on retailer specification listings: 120 V input, 140 A output, 30% duty cycle at 90 A, 24 gauge to 1/4 in, 0.030 and 0.035 in wire, infinite voltage and wire feed control, 8 ft MIG gun, 8 ft ground clamp, 20 A to 15 A adapter, 19 lb (checked 2026-10-22)
- Lincoln Electric - WELD-PAK 90i FC (K5255-1) published specifications: 120 V single phase 60 Hz, 20-120 A output with a rated 90 A at 21 V and 30% duty cycle, 20-200 in/min wire feed speed, 0.030 and 0.035 in contact tips, 15 lb (checked 2026-10-22)
- Lincoln Electric - WELD-PAK 90i FC retailer specification listing, cross-checked for the 120 V / 120 A rating, included gun, work cable and clamp and metal carrying case
- Lincoln Electric - Innershield NR-211-MP published description: general-purpose all-position self-shielded flux-cored wire in 0.030 and 0.035 in for single and multi-pass mild steel
Read next
- The best flux-core welders for beginners
Gasless machines that weld the day they arrive, and the duty-cycle figure that separates them.
- The best flux-core welders for the money
Value per dollar in gasless welding, including the part that costs least and changes most: the wire.
- What is the first welder to buy?
The one job a first welder has to do, and the four specifications that decide whether it does it.
- Flux-core welding settings chart
Starting settings by thickness, and a symptom-by-symptom guide to fixing a bad bead.
- Flux-core vs MIG for beginners: which should you learn on?
Where the shielding comes from, and how that one difference changes everything downstream.
- Level 1 · Flux-Core: one machine, one wall socket, no gas bottle
If you have never struck an arc, this is your page. One machine, a standard household outlet, and nothing else to buy before your first weld.
Back to Level 1 · Flux-Core, or start over at Find Your Level.
Ryder M.
Ryder M. is the hands-on owner behind Magoo Media Group. He writes Arc & Bead's buying guides and picks every machine on the site. What every recommendation is based on — and what it is not based on — is set out on How We Pick.