COVID-19 UPDATE: We’re shipping orders fast, prioritizing health & safety. Learn More

Eastwood MP250i Multi-Process 250 Amp Welder - MIG/TIG/ARC

Item #21180 MP250i Multi-process Welder

Eastwood MP250i Multi-Process 250 Amp Welder - MIG/TIG/ARC
30-250 Amp control allows you to weld up to 1/2" steel at 220v input
* This product displays as two items and ships in 2 boxes. Both boxes are required for assembly of welder.


All-In-One Eastwood Welder

When you're doing a full-scale auto restoration, sometimes one type of welding isn't going to be enough. The Eastwood 250-amp Multi-Process Inverter welder provides the ability to MIG, TIG or ARC (Stick) weld all from a single, high-powered, self-contained unit. All you have to do is switch torches to be able to do the quality welding you need on body panels, roll cages, custom-fab parts or other auto work. Weld thin sheet metal or up to ½-inch steel plate using these versatile machines. The MP250i doesn't stop there either. You can also stick weld aluminum using the included supplies or add an optional spool gun for MIG welding aluminum.

The Eastwood MP250i Multi-Process 250 Amp Welder Features:

  • Operates on either 120v or 240v
  • Welds steel and stainless
  • Welds aluminum, with optional spool gun - 20172 Spool Gun
  • IGBT inverter based power supply
  • Welds thin sheet metal or up to ½ inch steel plate
  • Hold either 8 or 12 inch wire spools
  • Square wave inverter
  • 10 feet long power cord so you can weld anywhere
  • Fits up to 330-cuft bottle (9" diameter)
  • Can also be used for Flux-Core welding
  • All 3 torches included are 15 feet long
Eastwood MP250i Multi-Process 250 Amp Welder

Power & Versatility for Your Shop

The MP250i is the best multi-process welder that Eastwood offers. Powerful IGBT square wave inverter-based power supply is capable of over 250 amps of output on 240VAC with a 60 percent duty cycle at the full output. It is configured to hold either 8- or 12-inch spools of wire and utilizes up to 0.045-inch wire diameters for complete versatility. Furthermore, it runs on both 120v and 240v power, so you can plug it into pretty much any household or garage outlet. (Note that the maximum output is 140 amps at 120v.) You don't need a cart for this welder either, as it is built with four wheels plus 15-foot torches and ground cables so you can roll it around as needed.

Extra Welding Supplies Add Value

This self-contained welder includes pretty much everything you need to use it as a TIG welder, MIG welder or stick welder. You'll receive torches, TIG consumables, MIG tips, gas bottle chains and hose, an adaptor cord and much more. Add a tank and gas for a TIG/MIG welder and your favorite wire or tungsten rods and you're all set to begin. In addition to our product video below, the Eastwood Garage has a number of videos and sections about the different welding techniques so you can take full advantage of your new welder. It comes with a 3-year manufacturer's warranty and our legendary 100 percent customer satisfaction guarantee.


Ships in 2 boxes

BOX 1 21180A
  • Eastwood 250 amp MultiProcess Welder
  • Instruction manual
BOX 2 21180B
  • Trafimet ERGO24 MIG Torch 4.5m (15 feet)
  • WP26V TIG Torch 4.5m (15 feet)
  • 300 amp Electrode Holder 4.5m (15 feet)
  • 300 amp Ground Cable 4.5m (15 feet)
  • Adaptor Cord
  • TIG consumables
  • 0.030 and 0.035 MIG tips
  • Gas Bottle chains
  • Gas Hose
  • Wheels
Does not include gas regulator: We recommend our 12238 or 20277

Spool Gun for welding aluminum is optional and not included.


Power Voltage (V): 1 phase 240V+/-10%, 1 phase 120V+/-10%
Power Cord Receptacle Plug: NEMA 6-50R
Compatible Wire sizes: .030-.045
Frequency (Hz): 50/60
No Load Voltage (V): 61
Rated Input Current (Amps) 240V: MIG = 47.3, TIG = 35.7, ARC = 53.5
Rated Input Current (Amps) 120V: MIG = 42, TIG = 31.2, ARC = 51.1
Output Current Adjustment (Amps) 240V: MIG = 50-250, TIG = 15-250, ARC = 25-250
Output Current Adjustment (Amps) 120V: MIG = 50-140, TIG = 15-140, ARC = 25-140
Output Voltage (V) 240V: MIG = 16.5-26.5, TIG = 10.6-20, ARC = 21-30
Output Voltage (V) 120V: MIG = 16.5-21, TIG = 10.6-15.6, ARC = 21-25.6
Duty Cycle: 60% @ 250 aMPS
Power Factor: 0.73
Efficiency (%): 80
Wire Feed Speed (in/min): 78-629
Post Flow Time (seconds): 1.0+/-0.05
Weight: 150 lbs. (43.6kg)
Dimensions: 36"x21"x31" (900mm x 765mm x 765mm)

The rated Duty Cycle refers to the amount of welding that can be done within an amount of time. The Eastwood MP250i has a Duty Cycle of 60% at 250 Amps. It is easiest to look at your welding time in blocks of 10 Minutes and the Duty Cycle being a percentage of that 10 Minutes. If welding at 250 Amps with a 60% Duty Cycle, within a 10 Minute block of time you can weld for 6 Minutes with 4 Minutes of cooling for the Welder. If the Duty Cycle is exceeded, the Welder will automatically shut off, however the fan will continue running to cool the internal components. When a safe temperature has been reached, the Welder will automatically switch the Welder output back on. To increase the Duty Cycle you can turn down the Voltage Output control.

Please note that the MP250I does not qualify for Free Shipping promotions


This product ships in 2 boxes. Both boxes are required for assembling the welder.

Eastwood MP250i Multi-Process 250 Amp Welder


Always follow manufacturer's instructions for proper safety requirements when performing welding tasks.

Click here to see safety products



Use standard 120VAC, 20 amp 50 or 60Hz power. Welds up to 140 amp on 120VAC. The mig 250 will also use standard 240VAC, single phase 50 or 60Hz power. Unit will weld up to 250 amps with 240 VAC input. Use a NEMA 650 receptacle and a 50 amp dedicated line for this machine.

Product Video

Eastwood Offers Free Lifetime Technical Support

Click here for product SDS information

Attention California Residents - Proposition 65

Proposition 65 Warning WARNING - Cancer and Reproductive Harm -


Customer Reviews

Questions & Answers