Vulcan OmniPro 220

Last updated: November 3, 2026

Vulcan OmniPro 220
2.8/5#15 of 18 in dual voltage welders
2.8

A full featured dual voltage multiprocess welder you can buy off the shelf at Harbor Freight. The easy synergic setup is the draw, but the 90 day warranty is a real drawback at this price.

  • 220 A (140 A on 120 V)Output
  • 25% at 200 ADuty cycle
  • MIG, flux-core, stick, lift TIGProcesses
  • 120/240 VInput
Check price at Harbor Freight$1,099.99

Price checked November 3, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros
  • Synergic setup from a color screen, with 132 preloaded programs
  • Runs 140 A on a household outlet and 220 A on 240 V
  • MIG, flux core, stick and lift TIG, and takes a spool gun with no adapter
  • Takes 10 to 12 lb spools for long runs between wire changes
Cons
  • Only a 90 day warranty, very short for a $1,100 machine
  • Holds 200 A for only 2.5 minutes in 10
  • At 49 lb it is heavy for a dual voltage inverter
  • TIG torch and spool gun cost extra

How it scores

The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its input voltage. How we rank explains each one.

Specifications

Model numberVW220-OP
Output
Input voltage120/240 V
Maximum output220 A (140 A on 120 V)
Rated duty cycle25% at 200 A
Thickest steel, one pass0.375 in
InverterYes
Processes and wire
Gas MIGYes
StickYes
TIGLift TIG
Spool gun readyYes
Wire sizes0.025 to 0.045 in
Largest spool12 lb
Synergic settingsYes
Build
Weight49 lb
Warranty0.2 years
Released2019-09

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