Miller 135 MIG Welder Review: Should You Buy It or Not? may earn a commission if you purchase a product through one of the links provided.

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Welding machines are widely used in a number of industries like the metal and thermosplastic industries. And among all welding processes, MIG welding is the most extensively used one.

Everyone wants a simple yet effective welder, that is both flexible and easy to use. In our article today, we will offer the most handy and flexible MIG welder there is. You guessed it right. It is the Millermatic 135 MIG welder

Its high performance and power-packed features has made it a multi-purpose tool. We’ll discuss everything there is in its unique features, from portability, flexibility, advantages to its drawbacks.

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The Miller 135 MIG welder is quite famous among DIY welders as it is effortless to learn and handle, expert assistance is not necessary, and anyone can do their welding.

Most people found it extremely useful in motorsport, farming, and anything that requires repairing of metals. It is way lighter and cost-friendly than most conventional welding machines.


Miller 135 MIG welder is considered to be best in class due to its great specs:

  • Welding Range: 30 to 135 Amp
  • Duty Cycle: 20% at 90 Amp
  • Power input: 20 Amp
  • Thermal Overload Protection: Yes
  • Max Weld Width: 24 gauge to 3/16ths inch.
  • Weight: 60 lbs.
  • Size: 17.5 L x 10.5/8 W x 15.3/4 H (inches).


  • Multi-Purpose Tool: This machine supports MIG, TIG, and sticks welding. It is well suited for metals such as mild steel, copper, stainless steel, aluminum, and various thin layer metals.
  • Welding Guide Chart: This chart carries all the information on using this device, which makes it very reliable.
  • Cooling Mechanism: A fan runs to cool down the internal part of the MIG welder.
  • Thermal Cut-Out: This machine has its own inbuilt thermal cut out that enhances its duty cycle.
  • Long Cord: This miller machine has a cord of 14 AWG for up to 50 feet and 12 AWG for 50 to 200 feet.
  • Additional Features: Millermatic 135 is a 115V wire welder, which is quite good for a typical household 120V circuit.

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This powerful machine has gathered a lot of popularity among new users as its user friendly and convenient. Most importantly, simple to use with no fancy specifications that are merely created to attract users.

Miller 135 MIG welder can efficiently handle 0.06 mm and 0.08 mm solid-metal MIG wire and flux-core MIG wire in diameters of 0.08 mm or 0.09 mm.

Its dual mechanism of 115-volt output and current output of up to 135 amps lets you use a definite setting for different purposes.


Safety should be the priority, and every electronic device should be handled carefully while using it.

We would recommend wearing gloves, helmet, and welding goggles while performing any task with this machine.

This machine has an inbuilt fan to remove excess heat, and good quality wires are provided to avoid shocks and short-circuiting.


This machine is equipped with dual dial settings that allow it to work on high and low voltages.

This machine takes 2 minutes of continuous welding for the duty cycle and 8 minutes of rest at 100%, this too depends on dial settings.

At 47-amp output setting, it will operate at a 50% duty cycle, and if the setting is changed to 125 amp, it will operate at a 10% duty cycle.


This machine is relatively easy to carry as it weighs 60 lbs. It is somewhat lesser than other conventional welding machines.

A handle is provided at the top of the machine to be lifted easily and kept anywhere.

Miller 135 MIG Welder Pros
  • Its welding guide charts will help you get all the essential information about voltage and ampere requirements for various metals.
  • It is best suited for household purposes as its compact and flexible.
  • It works on low and high voltages with a duty cycle of about 20% at 90 Amp.
  • It has impressive safety features, which makes it most reliable for beginners as they are non-trained.
  • Shielding gas is used to pass through the welding gun to protect the weld pool from being contaminated, giving the welding arcs a well finished and smooth appearance.
Miller 135 MIG Welder Cons
  • This machine gets quickly heated up on high voltages and if running for long hours.
  • Mostly this machine is suitable for a household, not for commercial purposes.
  • It is suitable for beginners but quite disappointing for pro users as it does have many specs.


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We recommend this welding device for beginners as its “simple to use” features allows any new user to perform the welding task almost effortlessly. Its other features, such as portability, flexibility, and dual mechanism, make it one of the best buys in the affordable budget.


1. Can you weld aluminum with a millermatic 135?

Yes, you can use Miller Matic 135 to weld aluminum.
Combine Spoolmate 3035 with SGA 100 to weld 14 gauge to 1/8 in aluminium for Millermatic 135/140. Combine Spoolmate 3035 with SGA 100 to weld 14 gauge to 3/16 in aluminum for Millermatic 175/180. The Spoolmate may also be used in conjunction with one of the SGA units to weld aluminum using comparable, competitive power sources.

2. Which is better Lincoln or Miller Welders?

According to my research, the consensus is as follows: Miller is recognized for developing superior MIG and TIG welding machines. Lincoln is renowned for its expertise in stick welding equipment, which they invented more than a century ago. Sure welders swear by special welding machines manufactured by both firms.

3. Are Miller Welders worth the money?

Millers are fantastic, but for the price of one, you could have your truck welded. Yes, as they typically have a high market value. Additionally, they are more user-friendly and feature a smooth arc character. Conduct an internet search for a company called R-Tec Welding Supplies.

4. Is Hobart as good as Miller?

The Miller is better with lighter metal and lower settings; the Hobart is better with heavier metal and higher settings. Both were excellent machines.

5. Do you push or pull a MIG welder?

Here, the rule is straightforward. “If it generates slag, you drag,” Leisner explains. In other words, while welding with a stick or flux-core wire welder, you drag the rod or wire. Alternatively, you can weld the wire using inert metal gas (MIG) welding.

About the Author Gregory

Hi, my name is Gregory! I have been welding practically all of my life and love it. As I have gotten older I have started to weld less and less, so in order to continue my love for welding I created this website. I like to write about my experiences and help you all become welders. I hope that you enjoy the site!

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