Amazon affiliate links - we earn a commission.Affiliate disclosure

Buying guide · 12 min read · Updated 2026-11-12

Best Multi-Process Welders (2026)

Six multi-process welders from Lincoln POWER MIG units to 4-in-1 and 6-in-1 inverters, compared on processes, voltage, TIG quality and the real tradeoffs.

James MillerBy James MillerLead Machine Editor6 machines comparedSpec-sheet verified
Best Multi-Process Welders

At a glance

Our top picks

Side by side

Spec comparison

MachineProcessesInputOutput
Lincoln Electric POWER MIG 215 MPi Multi-Process, 120V/230VBest OverallLincoln Electric POWER MIG 215 MPi Multi-Process, 120V/230VMIG, flux-core, stick and DC TIG120V or 230V dual voltagen/a
Lincoln POWER MIG 220 AC/DC Multi-ProcessBest for Aluminum TIGLincoln POWER MIG 220 AC/DC Multi-ProcessMIG, flux-cored, stick and AC/DC TIG120V or 230Vn/a
FEMEROL 200A 6-in-1 Plasma Cutter Welder ComboBest With PlasmaFEMEROL 200A 6-in-1 Plasma Cutter Welder ComboFlux MIG, gas MIG, plasma cut, HF TIG, stick, spot220V for cutting200A
BESTMIG 165S 4-in-1 MIG Welder 110V/220V SynergicBest Value Dual VoltageBESTMIG 165S 4-in-1 MIG Welder 110V/220V SynergicGas MIG, flux-core MIG, lift TIG, MMA stick110V or 220V165A
BESTMIG 145A 4-in-1 MIG/TIG/MMA 110V/220VBest Compact ComboBESTMIG 145A 4-in-1 MIG/TIG/MMA 110V/220VGas MIG, gasless MIG, lift TIG, stick110V or 220V145A
YESWELDER 135A Flux-Core MIG/Lift TIG/Stick 3-in-1Best Budget 3-in-1YESWELDER 135A Flux-Core MIG/Lift TIG/Stick 3-in-1Flux-core MIG, lift TIG, stick110V135A

A multi-process welder packs several welding modes into one box, usually MIG, flux-core, stick and TIG. The appeal is obvious: one machine, one cord, one footprint. For a home garage or a small shop with limited space and money, it can replace three dedicated machines.

The catch is that each process is a compromise. The TIG mode on a budget combo is usually DC lift-start, the MIG feeder is simpler than a dedicated unit's, and a machine that is mediocre at four things can be worse than one that is good at one. Knowing which process you will use most decides whether a combo is worth it.

Before you buy

6 Criteria to Look For Before Buying a Multi-Process Welder

  1. 01

    Which process you will use most

    A combo is a MIG welder with other modes, or a stick welder with other modes. The Lincoln POWER MIG 215 MPi and 220 are MIG machines first. The YESWELDER 135A is a flux-core and stick machine. Choose the primary process and treat the rest as backup, or you will pay for features you rarely use. Think about whether you could live with a stick-only second machine instead, since stick on a combo is rarely the limiting process.

  2. 02

    TIG quality in a combo

    Most budget combos offer lift-start DC TIG, which scratches the tungsten to start the arc and risks contamination. The Lincoln POWER MIG 220 AC/DC adds AC for aluminum, and the FEMEROL offers HF TIG. If TIG matters, a dedicated TIG machine is a better buy than a combo. If you only ever TIG thin stainless, a DC TIG machine saves money and complexity.

  3. 03

    Input voltage

    A 110V combo, such as the YESWELDER 135A, is limited to thin to medium steel. Dual-voltage units like the BESTMIG 165S and Lincoln models double their reach on 220V or 230V. Plan for 230V if you want to weld 1/4 inch plate. The 120V mode on a dual voltage welder is a convenience, not an equal to 230V output.

  4. 04

    Feeder and torch quality

    The wire feeder is the most common failure point on budget combos. A Lincoln feeder has better drive rolls, tensioners and liners than a budget one. Cheap torches wear quickly, so budget for spare tips and nozzles. Ask the seller where replacement drive rolls and liners can be bought before you commit.

  5. 05

    Duty cycle across modes

    Duty cycle varies by process and voltage. A machine may be 60 percent at 100A and 20 percent at maximum. The FEMEROL claims 60 percent on the cutter. Always check the rating at the amperage you will actually use. On any combo, the lower the amperage you weld at, the longer you can run before the thermal cutout trips.

  6. 06

    Accessories and gas

    A combo needs different consumables for each process: contact tips, TIG tungstens, stick rods and perhaps a plasma torch. Add a regulator, gas cylinder and wire. The more processes, the more things to stock. Keep a small box for each process so consumables do not get mixed up.

Detailed reviews

The 6 best multi-process welders, explained

01
Lincoln Electric POWER MIG 215 MPi Multi-Process, 120V/230V
MIG, stick, DC TIG120V/230VLincoln brandDual voltage
Check price on Amazon
Best for: Small shops that want one supported machine for MIG, stick and DC TIG.

The POWER MIG 215 MPi is a true multi-process machine from a major maker, with MIG, flux-core, stick and DC TIG in one package and dual voltage input for 120V or 230V. The listing is brief, so verify output ranges and accessories on the product page. The big difference from a budget combo is that it is built around MIG, with a proper feeder, and adds the other processes on top.

Dual voltage means it works in a household garage and gets full output on 230V. DC TIG adds steel and stainless capability, though aluminum would need AC. Compared with the POWER MIG 220 AC/DC in this guide, the 215 MPi is the DC-only version and costs less, while the 220 adds AC for aluminum.

Parts support is the real advantage: tips, nozzles, liners and drive rolls are stocked at nearly every weld shop. Expect to buy a TIG torch and gas if they are not bundled. It is the sensible choice for a shop that wants one dependable machine. If you plan to add a spool gun for aluminum MIG later, confirm the machine has the connector and a separate gun trigger circuit before buying. Spares are cheap insurance against lost days.

What works

  • MIG, flux-core, stick and DC TIG in one
  • 120V and 230V input
  • Major brand parts support
  • Built around a real MIG feeder

Watch out for

  • Higher price tier than budget combos
  • DC TIG only, no aluminum

Spec sheet

Processes
MIG, flux-core, stick and DC TIG
Input
120V or 230V dual voltage
Model
K4876-1
Class
215 amp MPi series
Brand
Lincoln Electric
02
Lincoln POWER MIG 220 AC/DC Multi-Process
MIG, stick, AC/DC TIG120V/230VAC TIGDual input
Check price on Amazon
Best for: Fabricators who need aluminum TIG and steel MIG from one machine.

The POWER MIG 220 AC/DC adds AC TIG to the multi-process list, which is what makes aluminum TIG possible. The listing gives MIG, flux-cored, stick and AC/DC TIG with dual input voltage of 120V and 230V. It is rare to find a combo from a major brand that includes AC.

That matters if you want aluminum but have space for one machine. AC TIG on a combo unit tends to have fewer adjustments than on a dedicated AC/DC TIG welder like the Lincoln Square Wave, so treat it as capable rather than ideal. The MIG side stays a proper feeder, with the usual support from Lincoln.

It sits at the top price tier in this guide. Expect to buy a torch, foot pedal, regulator and gas. It is the pick if you want one machine to do almost everything in a small fabrication shop. Take the time to learn AC balance on scrap aluminum, because the default setting is rarely the best one. A good ground clamp matters more than people expect.

What works

  • AC and DC TIG for aluminum and steel
  • MIG, flux-core and stick as well
  • 120V and 230V input
  • Lincoln parts support

Watch out for

  • Top price tier in the lineup
  • AC controls are simpler than on a dedicated TIG unit

Spec sheet

Processes
MIG, flux-cored, stick and AC/DC TIG
Input
120V or 230V
Special
AC TIG for aluminum
Series
POWER MIG 220
Brand
Lincoln Electric
03
FEMEROL 200A 6-in-1 Plasma Cutter Welder Combo
6-in-1200APlasma cut60% duty cut
Check price on Amazon
Best for: Tight workshops that want cutting and welding in one cabinet.

The FEMEROL adds a plasma cutter to the welding list, a rare combination. It claims flux MIG, gas MIG, HF TIG, stick, spot and plasma cutting, with a 10 mm clean cut and 16 mm severance cut on 220V at a 60 percent duty cycle. The plasma cut figures are the ones to note: 10 mm is about 3/8 inch and 16 mm about 5/8 inch.

The appeal is one machine for cutting and joining in a tight workshop. The compromise is that every mode is a stretch: a plasma cutter in a combo needs clean dry air, and the TIG is HF DC. Compared with a dedicated 50A plasma cutter, it cuts roughly the same thickness but shares a power stage with the welder.

Expect to buy an air compressor and dryer for cutting, and to learn that cutting and welding share consumables carefully. It is a creative pick for a small fabrication space, not a replacement for a dedicated cutter and welder. A 220V plasma cut also draws heavy current, so check the breaker size and cord before running it for long. Run a test bead before every new job.

What works

  • Plasma cutter plus five welding modes
  • 10 mm clean cut claim on 220V
  • 60 percent duty claim for cutting
  • HF TIG start

Watch out for

  • Each mode is a compromise
  • Plasma needs a separate compressor

Spec sheet

Processes
Flux MIG, gas MIG, plasma cut, HF TIG, stick, spot
Output
200A
Cut capacity
10 mm clean, 16 mm severance at 220V
Duty cycle
60 percent on the cutter
Input
220V for cutting
04
BESTMIG 165S 4-in-1 MIG Welder 110V/220V Synergic
165A output110V/220VGas and gaslessSynergic
Check price on Amazon
Best for: Home garages that want MIG, flux-core, stick and lift TIG at a modest price tier.

The BESTMIG 165S is a 165 amp, dual-voltage four-in-one with gas MIG, gasless flux-core, lift TIG and MMA stick, plus synergic control and an IGBT inverter. It is the most conventional budget combo in the group and the best value for a home garage.

The synergic mode makes setup easy on thin steel, while 220V input unlocks thicker plate. Lift TIG is basic DC TIG without high-frequency start, useful for light steel work. Compared with the BESTMIG 145A in this guide, the 165S has more output and a larger duty cycle on 220V.

A budget feeder and torch will wear faster than a Lincoln's. Keep spare tips and liners and use quality wire. It is an economical first machine that gives the full range of processes. For thicker plate on 220V, run in two passes with proper joint prep rather than one hot pass, which gives better fusion at this output. Store it dry between jobs.

What works

  • 165A with 110V and 220V
  • Four processes in one
  • Synergic control
  • IGBT inverter efficiency

Watch out for

  • Budget feeder and torch wear sooner
  • Lift TIG is basic

Spec sheet

Output
165A
Input
110V or 220V
Processes
Gas MIG, flux-core MIG, lift TIG, MMA stick
Control
Synergic with IGBT inverter
Design
4-in-1 multi-process
05
BESTMIG 145A 4-in-1 MIG/TIG/MMA 110V/220V
145A output110V/220VGas and gasless4-in-1
Check price on Amazon
Best for: Beginners who want a four-process machine in a compact size.

The BESTMIG 145A is the smaller sibling of the 165S, with 145 amps, dual voltage and the same four processes. The listing describes a unitary design and says it operates under various power conditions, plus easy wire changes.

It is lighter and cheaper than the 165S but gives up some output and duty cycle on 220V. For thin steel, sheet metal and bracket work, 145A is plenty, and the dual voltage means you can move to 220V later. Compared with the YESWELDER 135A below, it adds dual voltage and gas MIG.

Treat the TIG as an occasional bonus rather than a primary process. Keep spare tips, and use proper polarity for each process. It is a sound small-shop starter. Mark the wire type and polarity on the case with tape so you never forget which process you last used. Confirm the warranty terms in writing.

What works

  • 145A on 110V or 220V
  • Gas and gasless MIG
  • Lift TIG and stick
  • Easy wire change

Watch out for

  • Lower output than the 165S
  • Lift TIG without HF start

Spec sheet

Output
145A
Input
110V or 220V
Processes
Gas MIG, gasless MIG, lift TIG, stick
Design
Unitary MIG design
Feeder
Simple wire change
06
YESWELDER 135A Flux-Core MIG/Lift TIG/Stick 3-in-1
135A output110V3-in-1Synergic
Check price on Amazon
Best for: Beginners who want flux-core, stick and lift TIG at the lowest price tier.

The YESWELDER 135A is the lowest-cost multi-process machine here, a 110V three-in-one with flux-core MIG, lift TIG and stick. The listing highlights synergic control that matches settings to material to avoid burn-through, and a clear digital display.

Because it lacks gas MIG, it is a flux-core machine at heart, with stick and lift TIG as extras. That keeps the price low and setup simple. It is limited to a household outlet, so its reach is thinner than the dual-voltage BESTMIG units.

Use it for gate and bracket repairs and learn on scrap. Keep spare tips and use quality wire. It suits the buyer who wants to try multiple processes at the lowest cost. A cheap helmet with a wide shade range suits switching between low-amp TIG and brighter flux-core. Learn one process well before the others.

What works

  • Lowest cost multi-process unit
  • Synergic control
  • Ready out of the box
  • Three processes

Watch out for

  • 110V only
  • No gas MIG mode

Spec sheet

Output
135A
Input
110V
Processes
Flux-core MIG, lift TIG, stick
Control
Synergic with clear display
Setup
Ready out of the box

Spec sheet decoder

What the numbers on the box really mean

The specs manufacturers lead with, translated into what they tell you about real-world performance.

N-in-1

The number of welding modes the machine claims. It counts variations such as gas and gasless MIG separately. Always find out which mode the figure applies to.

Watch forThe 4-in-1 BESTMIG and 6-in-1 FEMEROL count similar modes differently.

Lift TIG

A TIG start method where you touch the tungsten to the work and lift it to start the arc. It is basic but works. HF start avoids tungsten contamination.

Watch forHigh-frequency start is cleaner and avoids tungsten contamination.

Synergic

A mode that sets voltage and wire speed from material thickness. It is a starting point, not a finished weld.

Watch forManual override remains important for fine tuning.

Duty cycle

The percentage of ten minutes a machine can weld at a stated current. Higher is better only at your amperage.

Watch forThe FEMEROL's 60 percent claim applies to cutting at 220V.

Clean cut vs severance

Clean cut is the thickness a plasma cuts with a good edge, severance is the thickest it can cut roughly. Bigger severance claims do not mean a usable edge.

Watch forThe FEMEROL claims 10 mm clean and 16 mm severance.

Methodology

How We Evaluated These Multi-Process Welders

Process range

We counted the real processes each machine runs, from three on the YESWELDER to six on the FEMEROL, and noted which are primary. Combos were not penalised for being a compromise, only for hiding it.

Voltage and output

We compared input voltages, from 110V only to 120V/230V Lincoln units. Process count was treated as a feature only when each mode was actually usable.

Support and feeder

We weighed brand support and feeder design, because the feeder is the most common failure. Higher-voltage capability was considered a significant plus.

TIG capability

We looked at whether TIG is lift-start, HF or AC, since that decides whether the TIG mode is a toy or a tool. Duty cycle statements were taken from listings where available.

Evidence base

This is based on spec sheets and owner feedback patterns, not our own welding time. Capacity numbers are claims. Brand support is a durable advantage over price.

Decision guide

How to Choose the Right Multi-Process Welders

By Primary Process

SituationPickWhy
MIG first, DC TIG backupLincoln POWER MIG 215 MPiReal MIG feeder
MIG first, aluminum TIG tooLincoln POWER MIG 220 AC/DCAC TIG
Cutting and welding in oneFEMEROL 6-in-1Plasma included
Home garage MIG and stickBESTMIG 165S165A dual voltage
Beginner flux-core and stickYESWELDER 135ALowest cost

By Budget

Budget tierPickWhy
LowestYESWELDER 135ACheapest tier
LowBESTMIG 145ADual voltage
Lower middleBESTMIG 165SMore output
MiddleFEMEROL 6-in-1Plasma included
UpperLincoln POWER MIG 215 MPiBrand-name MIG

Combo vs Dedicated Machines

Combo

One box saves space and money. The BESTMIG and FEMEROL give several processes, each at a compromise.

Dedicated

Separate MIG, stick and TIG machines each do one thing well, but take more room and cost more together.

Choose a combo for a small space and a dedicated pair if one process dominates.

110V vs Dual Voltage

PreferencePickWhy
110V onlyYESWELDER 135ASimple plug-in
Dual voltage budgetBESTMIG 145A110V and 220V
Dual voltage, more outputBESTMIG 165S165A
Pro dual voltageLincoln POWER MIG 215 MPi120V and 230V

For Aluminum and Stainless Specifically

Look for

AC TIG for aluminum, or a spool gun and pulse MIG. DC TIG covers stainless and steel.

In this comparison

The Lincoln POWER MIG 220 AC/DC is the one with AC TIG. The 215 MPi covers stainless with DC TIG.

When to Spend More

Spend more if

You want parts support and a real MIG feeder. The Lincoln machines are the buy.

Save if

You want to try processes and weld occasionally. The BESTMIG or YESWELDER do it.

Ownership

Maintenance schedule

The upkeep that decides whether this machine lasts two seasons or ten.

TaskIntervalWhy it matters
Replace contact tipsEvery few spoolsWorn tips cause erratic arcs. Keep spares for each process. Record what you used last.
Check polarity per processEach process changeFlux-core needs electrode negative, gas MIG electrode positive, and TIG the opposite. Mismatch leads to porosity. Tighten fittings.
Clean liner and drive rollsEach spool changeDebris stops wire feed. Blow it out with air. Replace as needed.
Inspect plasma consumablesEach sessionA worn tip or electrode ruins cuts. Replace tips before they fail. Clean daily.
Blow out the caseEvery 6 monthsDust overheats inverters. Keep the case vents clear. Check monthly.

FAQ

Frequently Asked Questions

Are multi-process welders worth it?

For a small space, yes. You get several capabilities for the price of one. Each mode is a compromise compared with a dedicated machine. Choose by the process you will use at least three times as often as the others.

How much should I spend?

The YESWELDER and BESTMIG units sit at the low end, the FEMEROL in the middle and the Lincoln machines at the top. Spend more for support. Add a good helmet and gloves to your budget.

How long do they last?

Many years with care. The feeder and torch wear first, so keep spares. A used dedicated machine can be a better buy than a new combo.

Is the TIG mode good?

On budget combos it is basic lift-start DC TIG. For serious TIG, buy a dedicated machine. A spool gun or push-pull torch is the usual route to aluminum MIG.

Do I need a compressor for the plasma?

Yes. A plasma cutter needs clean, dry air at stable pressure. Keep the compressor dry so consumables last.

Can I weld aluminum with a combo?

The Lincoln POWER MIG 220 AC/DC can with AC TIG. Most budget combos cannot. Plan for a 230V outlet if you ever expect to do heavy work.

Bottom line

The short version

Browse more multi-process welderson Amazon →
James Miller, Lead Machine Editor

About the author

James Miller

Lead Machine Editor, MachineFanatic

James Miller leads MachineFanatic's buying guides, turning spec sheets, manuals and owner feedback into clear verdicts on power tools, outdoor power equipment, shop machines and kitchen machines.

More from James →

Keep reading

Related guides