Multi-process · YESWELDER

YESWELDER 140A Multi-Process Welder

Multi-process, up to 140 A, 110/220 V

Updated October 2026

Quick verdict

Built for A shop that does a bit of everything.

Strength
Up to 140 A output.
Trade-off
Duty cycle not stated with amps.
Right buyer
A shop that does a bit of everything.
Processes
Gas MIG/Flux Core
Output range
140 Amp
Input power
110 volts, 220 volts
Shielding gas
Gasless
Size
15.35×6.22×11.38 in
Product weight
22.8 lb
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What it welds

The YESWELDER 140A Multi-Process Welder is a multi-process with a maker-stated output of up to 140 amps on 110 or 220-volt input.

At its top output of 140 amps, Miller's 1-amp-per-thousandth rule points to about 0.140 in of steel per pass. Where the rule comes from.

The listing doesn't give a duty cycle with its amperage, which makes long beads hard to plan; the rating plate or manual should state it. Why it matters.

Processes, per the maker: Gas MIG/Flux Core. Most multi-process machines' TIG is DC lift-arc, so no aluminium unless AC is stated. Choosing a process.

Running on 120 or 240 volts, it trades output for convenience on the lower input. What input voltage changes.

Use a lens of at least OSHA's minimum shade for the current: shade 10 or darker for typical MIG work here. Shade chart.

Also on the listing: a weight of 22.8 lb.

Is it the right machine for the job?

Buy it for

  • A shop that does a bit of everything
  • Sheet metal to about 0.140 in

Skip it for

  • Steel much past 0.140 in in one pass

What it does well, where it falls short

Does well

  • Up to 140 A output
  • Dual-voltage input
  • Multi-process

Falls short

  • Duty cycle not stated with amps
  • Torches may be extra

Power and setup notes

  • Ratings are the maker's own, stated under the maker's conditions. Follow the manual, wear eye protection of at least OSHA's minimum shade, keep combustibles away, ventilate, and have a licensed electrician install new circuits.

Rated output and specs

Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.

Model number140ARetailer
Product weight22.8 lbRetailer
Size15.35×6.22×11.38 inRetailer
MaterialAluminum, Copper, Electronic Components, Insulation Materials, Iron, PlasticRetailer
PoweracRetailer
Input power110 volts, 220 voltsRetailer
Wattage3.6 KWRetailer
Output range140 AmpRetailer
ProcessesGas MIG/Flux CoreRetailer
Shielding gasGaslessRetailer

Machines to put next to it

Other multi-process welders in the same amp range

Every multi-process welders on one spec sheet · All YESWELDER machines listed

Final verdict

Built for A shop that does a bit of everything.

Where to buy

Our links open this exact model's product page. Prices and stock change; check what's included before you order.

Prices change often; the button shows today's price.

Each button opens this exact model. We may earn a commission on tracked links; it never changes what we publish. Disclosure

Questions buyers ask

How thick can the YESWELDER 140A Multi-Process Welder weld?
By Miller's 1 A per 0.001 in rule its 140 A top output reaches about 0.140 in in one pass.
What is the YESWELDER 140A Multi-Process Welder's duty cycle?
The listing doesn't state it with an amperage; check the rating plate or manual.
What power does the YESWELDER 140A Multi-Process Welder need?
110 or 220 volts per the maker; the manual states the circuit and plug.