Miller 140 Mig Welder Review!

millermatic 140 mig welderThe Millermatic 140 MIG Welder is another serious contender in the 115v MIG welder market by the reputable company Millermatic.

This welder features all the standard benefits that come equipped on the standard Miller 140 MIG series welder, but also includes Miller’s patented ‘Auto-set’ which essentially eliminates any guess work on the users end. Users can opt for Auto-set when speed is desired along with convenience and pre-set controls of the welder.

All that is required is to simply preset the wire diameter and the thickness of the material and you are ready to begin welding. The Auto-set feature will set your Millermatic 140 MIG Welder to the proper settings automatically and is available to use when welding any mild steel using solid wire and works with .024 and .030 solid diameter wires and C25 shielding gas which consists of 75% Argon and 25% CO2.

Additional technical details of this welder include a brand new Smooth-Start patent pending feature which provides you with a smooth, and no-spatter start.

Additionally, the “Tip Saver” feature is a short circuit protection which will shut the welder down if the tip is shorted to the workpiece. Furthermore, it comes standard with a built in solid-state contactor circuit which actually makes the wire electrically cold up until the moment the trigger is pulled.

We were able to dig up a few reviews of this particular welder online and people have nothing but good things to say about the Millermatic 140 MIG Welder, with all of them giving it 4 or 5 star ratings.

Consumers who purchased this welder were very pleased with the power it had for a 120V welder and how light the overall welder weighs. Several consumers reported that this welder can stand up and compete with the best units on the market.

Additionally, people also were very satisfied with the controls on the Miller 140 MIG Welder which help keep up with any settings you may need. Compared to other welders these consumers reported using, the 140 MIG welder was significantly better performing all around.

For the price of this MIG welder you will be hard pressed to find a better performing welder in it class of welding equipment. As others have stated, it even compares to and exceeds the performance of so called higher end units.

Due to the ratings this welder has received and the reviews we have read about its overall performance, we are pleased to give the Millermatic 140 MIG Welder our seal of approval.


  • Input Voltage: 115v
  • Input: 20 Amps
  • Output Range: 30-140 Amps
  • Open Circuit Voltage (OCV): 28
  • Hertz (Hz): 60
  • Duty Cycle: 20%
  • Phase: 1
  • Rated Output: 90 Amps @ 18 Volts Direct Current (VDC)
  • Wire Size: Mild 0.024 – 0.030 Inches / Flux 0.030 – 0.035 Inches
  • Overall Height: 17-1/2 Inches High
  • Overall Width: 10-5/8 Inches Wide
  • Overall Depth: 15-3/4 Inches Deep
  • Features: Patented AutoSet technology makes setting your welder fast, and easy.
  • Application: Light Fabrication, Maintenance And Repair, Auto Body, Farm & Home
  • Standards: CSA Certified

What You Get:

  • The 115v welder (in other words, the power source)
  • Power Cord And Plug
  • Gun And Cable Assembly
  • Work Cable And Clamp
  • Gauge With Hose
  • Spool Of Wire
  • 2 Contact Tips
  • Drive Roll Valve
  • Set-up Cd
  • Info Chart
  • Thickness Gauge

Pricing: $960.

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