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  • Maxus MXW309 120V MIG/Flux Welder with Regulator, Wire and 2 Extra Nozzles
Model#: MAXNMXW309

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Brand new items;Full manufacturer warranty available
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New or Recon items with possible minor cosmetic damage; CPO 60 day money back guarantee
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Maxus MXW309 120V MIG/Flux Welder with Regulator, Wire and 2 Extra Nozzles

Model#: MAXNMXW309
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You want products you can count on all day, every day. MAXUS tools and equipment are designed for pros like you, people who make their living using tools on the job site. Maxus Welders and equipment are designed to help pros like you be more productive on the job. We want to help you finish your jobs faster and easier all day, every day.
  • 120Vs - MIG ready wire feed
  • Perfect for metal fabrication, auto/shop repairs, and industrial maintenance
  • Welds Steel from 24-Gauge to 3/16 in.
  • The professional cold torch with trigger activated arc allows precise weld placement
  • The 5 heart settings provide precise adjustment freedom to accommodate the thickness of your metal
  • The Ready-To-Run Kit includes everything you need to weld right out of the box
  • 120V MIG/Flux Welder with Regulator, Wire and 2 Extra Nozzles - MXW309
  • Flux Wire
  • (2) Contact Tips
  • Professional Torch
  • Ground Clamp
  • 10 ft. Torch Cable
  • 10 ft. Ground Cable
  • Dual Gauge Regulator


Series: Flux
Duty Cycle: 90A at 20%
Input Voltage: 120
Max. Output: 140
Output Power: 25-140A
Weld Type: MIG/FLUX


Product Reviews

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3 Questions | 4 Answers
Displaying questions 1-3
  • 120V MIG/Flux Welder with Regulator, Wire and 2 Extra Nozzles


    I have used many wire feed welders but this Maxus Pro 140 has problems. The wire seems to pulse regardless of the feed/speed and no mater how much or little tension is applied at the rollers. I'm using 0.030" flux core wire with the electrode negative as recommended. Copper tip is also 0.030". The wire tips pulses regardless of any of the forgoing settings. What might be wrong? It's out of warranty but hasn't been used over 2 hours total with terrible results. That's why the usage hours are so low. I don't even try to use it anymore after multiple attempts to get it to weld correctly. Can anything be done? Thanks!
    Asked on 11/8/2015 by Bart

    0 answers

  • 120V MIG/Flux Welder with Regulator, Wire and 2 Extra Nozzles


    Does this have a solenoid valve to control gas? Or does the gas flow continually when turned on by the valve?
    Asked on 2/18/2013 by Vato from Pekin,Il

    3 answers

    • Staff Reviewer


      This model is not equipped with a solenoid valve.

      Answered on 2/19/2013 by Ken from Atlanta, GA
    • A:

      its got a solenoid always shut the tank off after use.your better off with the flux wire.

      Answered on 8/1/2013 by leankey from chicago il
    • A:

      Yes it has a gas valve inside the welder,opens when the trigger is pulled & allows gas to flow thru gun cable & out the nozzle.

      Answered on 1/10/2014 by dugndeep from ky
  • 120V MIG/Flux Welder with Regulator, Wire and 2 Extra Nozzles


    I need an instruction manual for one of these where can I find one?
    Asked on 2/18/2013 by Cody

    1 answer

Displaying questions 1-3

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Maxus Tools 5-Year Limited Warranty

1-3 Year coverage on most wear items (see product specific warranty information for more details)

90-Day/No Coverage on unique and specific wear items (see category specific warranty information below for more details)

Responsibilities of purchaser under warranty:

  • Please call 1-888-Maxus4U (1-888-629-8748) for warranty assistance
  • Provide dated proof of purchase and maintenance records
  • Portable product must be delivered or shipped to the nearest Maxus Authorized Service Center. Freight costs, if any, must be borne by the purchaser
  • Use reasonable care in the operation and maintenance of the products as described in the owners manual(s)

When warrantor will perform repair or replacement under this warranty: Repair or replacement will be scheduled and serviced according to the normal work flow at the servicing location, and depending on the availability of replacment parts.

See below for category specific information:

Gas Engine Products: The gas engines used on MAXUS products are covered by the engine manufacturers warranty.

Pressure washers: No coverage - wear item such as high pressure hose and spray tips


  • 5 year warranty - transformer and rectifier
  • 3 year warranty - Specific wear items include the entire welder excluding clamps, welding gun, electrode holder, cables, accessories packed with welder
  • 90 day warranty - welding clamp, MIG gun, electrode holder, accessories, welding cables
  • No coverage - wear/consumable items such as contact tips, nozzles, gun liners, drive rollers, felt wire cleaner