Multi-process · Weldpro

Weldpro 155GD Multi-Process Welder

Multi-process, up to 155 A, 220 V

Updated October 2026

Quick verdict

Built for A shop that does a bit of everything.

Strength
Up to 155 A output.
Trade-off
Duty cycle not stated with amps.
Right buyer
A shop that does a bit of everything.
Processes
Spool Gun/ MMA/STICK
Output range
155 Amp
Input power
220 V
Wire sizes
030"/.035"
Spool gun
Spool Gun
Shielding gas
Gasless
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What it welds

The Weldpro 155GD Multi-Process Welder is a multi-process with a maker-stated output of up to 155 amps on 220-volt input.

By Miller's rule of thumb of 1 amp per 0.001 inch of steel, 155 amps reaches about 5/32 in in a single pass. Amps by thickness.

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: Spool Gun/ MMA/STICK. Most multi-process machines' TIG is DC lift-arc, so no aluminium unless AC is stated. Choosing a process.

Plan a 240-volt circuit sized as the manual states before it arrives. 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: dimensions of 15.3 x 6.6 x 18 inches and a weight of 34.5 lb.

Is it the right machine for the job?

Buy it for

  • A shop that does a bit of everything
  • Sheet metal to about 5/32 in

Skip it for

  • Steel much past 5/32 in in one pass

What it does well, where it falls short

Does well

  • Up to 155 A output
  • Multi-process

Falls short

  • Duty cycle not stated with amps
  • Needs a 240 V circuit
  • 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 number155GDRetailer
Product weight34.5 lbRetailer
Dimensions (seller)15.3 x 6.6 x 18 inchesRetailer
Size18.7 lbRetailer
MaterialMetalRetailer
Powergas_poweredRetailer
Input power220 VRetailer
Wattage34.1 WRetailer
Output range155 AmpRetailer
Wire sizes030"/.035"Retailer
ProcessesSpool Gun/ MMA/STICKRetailer
Spool gunSpool GunRetailer
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 Weldpro 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 Weldpro 155GD Multi-Process Welder weld?
By Miller's 1 A per 0.001 in rule its 155 A top output reaches about 5/32 in in one pass.
What is the Weldpro 155GD 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 Weldpro 155GD Multi-Process Welder need?
220 volts per the maker; the manual states the circuit and plug.