Millermatic 255 Reviews [2023 High Performance Pulsed MIG Welder] (2023)

Manufacturers at Miller Electric bring you the Millermatic 255 Smart Welder with advanced technology integration that sets it apart from the competition. In addition, this MIG welder can perform pulsed MIG welding, and it has some automatic settings that make the product more valuable. so if you are interestedget a new mig welderThis will serve with maximum efficiency. We encourage you to read the entire Millermatic 255 review article to make an informed decision.

Miller Electric is a trusted manufacturing company that has been dedicated to its efforts for nearly one hundred years. The company is the largest among the manufacturers of arc welding machines and their instruments, and its main focus is on people. With its slogan "Power of the Blue" (most of its products are this color), "Miller Electric" has served its customers with amazingly better products and services over time.

The Millermatic 255 is one of the great releases from its makers that will give you a great welding experience. The device has a choice of pulsed MIG welding, MIG welding and tube welding with an amazing user interface that allows the user to get the best welding performance. If you're looking for a MIG welder that provides clean, spatter-free welds with less distortion, the Millermatic 255 is the perfect product for you.


    • 0.1 Who should buy the Millermatic 255 MIG welder?
      • 0.1.1 The Millermatic 255 accessory
  • 1 Elite Millermatic detailed car set 255 reviews
    • 1.1 Intentional design
    • 1.2 Versatile tool with Pulse MIG option
    • 1.5 Efficient performance
      • 1.6.1 Limitations of the Millermatic 255 welder
    • 1.7 Warranty
      • 1.7.1 Conclusion
      • 1.7.2 Frequently Asked Questions

Who should buy the Millermatic 255 MIG welder?

The Millermatic is an economical welder best suited for professionals and seasoned hobbyists who are perfectionists. Unfortunately, the novice user cannot access the full potential of this device. FORLincoln Easy 180 Mild MIG WelderIt would be great for beginners as you can operate the unit at home voltage settings. Experienced users like B. Lightweight construction and fabrication users, but get a smooth, spatter-free weld with almost zero post-weld cleanup with the machine.Millermatic 255 Reviews [2023 High Performance Pulsed MIG Welder] (1)The machine can perform repair, maintenance, fabrication and DIY body work. In addition, users can use the device for boat/yacht maintenance/repair, commercial vehicle maintenance, construction, agriculture, motor sports, and aerospace welding. Additionally, the device can handle school/training welding projects, metal art, metal sculpting, customization and restoration projects.

The Millermatic 255 accessory

This powerful machine comes with the following components.

(Video) How Pulsed MIG Welding Works...And do you need it?

  • Pistola MIG MDX 250 15'
  • Bernard Acculock S consumables for 0.035/0.045 inch wire
  • 10 foot power supply with cable
  • 10ft work cable and clamp
  • Dinse socket 50mm
  • Flow meter regulator and gas hose.
  • contact tips
  • material dickenmesser
  • reversible rollers

Complete set of Elite Millermatic cars 255 reviews

The unique machine offers some exceptional features that make it a professional choice. Manufacturers focus on the best usability of the product while successfully executing its design and features. This section highlights these cutting-edge designs and attributes to better understand their features.

conscious design

Miller Electric put a lot of effort into designing this versatile device. Product dimensions are 13.75 x 19.25 x 26.25 inches with a weight of 84 pounds. It has a handle and optional landing gear for added portability. Also, for a powerful machine, the device required much less storage space than other similar products; the weight is not too heavy either.

Millermatic 255 Reviews [2023 High Performance Pulsed MIG Welder] (2)The most exciting design integration of this device is the user interface with a 7-inch color LCD screen. The display allows the user to intelligently manage their welding jobs, viewing all settings and following the process in a large, clear font. In addition, the on/off button is located on the right side of the device, making it easier for users to access. The backlit Pulse and Auto Set buttons are located above the LCD display and the 5 buttons below serve different purposes depending on the operating mode. The control panel also has two dials for voltage control and wire feed control. The landing gear has a storage compartment that is useful for storing accessories safely.

Versatile tool with Pulse MIG option

The Pulse MIG welding option along withMIG welding and cored wire, makes this device truly extraordinary. In pulsed MIG operation, arc length replaces voltage and voltage varies continuously with wire feed settings. Additionally, the MIG welder automatically switches between hot and cold settings. This causes a bead to form at the end of the electrode with each pulse, resulting in better arc performance, a smooth weld, and great bead appearance.

The machine can weld steel, stainless steel and aluminum (with some additional accessories). In addition, it can weld up to ½ inch 24 gauge steel material, and aluminum can weld up to ½ inch 18 gauge steel. The device can be operated with different gauges of wire for different project applications. For example, users can choose 0.023-0.045 inch wire for solid steel, 0.023 inch for stainless steel, 0.030-0.045 inch flux cored wire, and 0.035-0.045 inch for aluminum.

Millermatic 255 voltage and power settings

The multiprocess machine can operate with 208V or 230V input outputs. It cannot be operated with the current house configuration. The device can also be powered by a generator with a power of 12,000 watts or more. Power requirement may decrease based on design requirements.

The powerful machine offers a Min-Max output rating of 20A-350A, allowing the device to work with both thin and thick materials. It also supports 50Hz/60Hz settings and the duty cycle of this unit is 60% at 230A. This high duty cycle ensures that the machine can run for 6 minutes without stopping, followed by a 4-minute cool down, which increases the welding range. to work.

(Video) Millermatic 255 Review and Unboxing

The wire feed speed of this machine ranges from 50 ipm to 800 ipm. Therefore, the wire orientation for wire feed adjustment must be suitable for a proper wire feed path. In addition, it gives the user excellent control over the weld.

Exceptional ease of use with automatically configured Elite and Program modes

Miller Electric always builds its products with easy access for people in mind. The Millermatic 255 is no exception to other Miller specification products. However, this dynamic MIG welder has taken its usability to a higher level with the integration of advanced technology. For example, this device works in two modes, i.e. automatic mode and manual mode.

First, the product's compact design makes it easy to set up the device, allowing users to start soldering right away. Auto-line technology saves the user from setting trouble. After plug-in, the machine is ready to use and users don't have to worry about AC/DC barriers. Autoline technology also handles voltage spikes and dips, ensuring smooth delivery.

With the Auto-Set option, the device has predefined settings for different welding options. With this function, the user only needs to select the type of welding gas, the type of wire and the thickness of the material; The Auto-Set mode does the rest, providing the user with a comfortable welding experience without discrimination by skill level. In addition, the user can set the automatic setting mode for more accurate welding with a voltage regulator and wire feed regulator.

There is also a programming mode for saving your favorite weld setups and recalling them for similar projects. You have four options to configure your pre-qualified settings and the user can change these options as needed. This feature adds an additional benefit to the ease of use of this technologically advanced product.

efficient performance

In terms of efficiency, the Millermatic 255 is a consistent machine that offers the user excellent performance. On the one hand, the versatile machine can handle multiple processes, on the other hand, users can use this product for multiple projects. Also, to maintain efficiency and perfect configuration, the device will display incorrect cable configuration.Technology integration also increases efficiency by simplifying the machine setup and operation process, regardless of the user's skill level. Although this machine is for professionals and experienced welders, beginners can easily and quickly use the device.

Millermatic 255 Reviews [2023 High Performance Pulsed MIG Welder] (3)

(Video) Multimatic 235 and Millermatic 255 Comparison (Real Gear)

In short, this amazing machine is a perfect example of a highly efficient machine with automatic line technology, automatic setup, program mode and pulsed MIG welding option.

convenient and reliable

The Millermatic 255 MIG device is a fit-for-purpose device. Allows the user to run multiple jobs in a different location. In addition, the undercarriage of this machine improves portability and allows professionals to work on various projects with different needs. The unit is easily transportable and the automatic setup/programming mode allows the user to work on simultaneous projects without breaking a sweat.

Miller Electric is a brand that offers reliability to its customers. They have been in the market for a long time and have gained experience in optimal manufacturing and customer needs. All of their manufactured products follow specifications that have reached perfection over the years. Therefore, the likelihood of your products not working properly is low. In any case, there is always a guarantee to increase reliability.

Limitations of the Millermatic 255 Welder

There are some downsides to this beast of a machine, and we are going to discuss them in this Millermatic 255 review section.

  • The price is high much higher than thatMiller 211 Generator Compatible Welder
  • Not compatible with 120V socket
  • We need to buy separate accessories for aluminum welding.


The Millermartic 255 comes with a 3 year blue warranty. The company has approximately 800 distributors worldwide, each of whom is well trained, experienced and knowledgeable. Therefore, the user does not have to worry about anything in case something happens during the warranty period.


The MIG welder is an absolute marvel with advanced technology integration. The Pulse MIG option has added a new dimension for users as they can weld with high deposition, less distortion, less spatter and no post-weld cleanup. In addition, the quality of the bead in the solder material is improved, which satisfies users.

Despite the high price of the product, the money is a good investment and the return on value will benefit the user more than expected. For example, automatic tuning technology and program mode technology reduce setup time, which means the user spends less time setting up and more time soldering.

(Video) Miller 255 Pulse MIG and MDX 250 Consumable Kit Overview

Miller Electric backs its user with a 3 year warranty along with its brand value. Therefore, users weld with the product without worry. Plus, intuitive settings ensure your soldering experience is even more fun.

WaitThis Millermatic 255 review article has covered an in-depth discussion of the Millermatic 255, including how it works, benefits, limitations, and durability.So if you are a professional welder who is considering getting one for your versatile applications then the Millermatic is the smart choice for you. This cost-effective product delivers consistent performance and a smooth weld.

frequently asked questions

Does the unit come with landing gear/cart?

The landing gear or transport cart is an excellent option that comes with the Millermatic 255 as it improves portability for better use.

Is a reel gun included in the product accessories?

For aluminum welding, the user needs to purchase the accessories separately.


Is the Millermatic 255 a good welder? ›

The Millermatic 255 can weld up to 1/2-inch material, but that's thicker than I normally use. All in all, I really like this machine. The setup is quick, and it's easy to make top-quality welds.

Which is better Millermatic 252 or 255? ›

Compared to the previous high capacity MIG welder from Miller, the Millermatic 252, the Millermatic 255 has been reduced to 84 pounds, which is 50% lighter, with a simple EZ-Latch cart capability that doesn't require any additional tools. The Millermatic 255 is a MIG only unit.

How thick can a Miller 255 weld? ›

The Millermatic 255 MIG welder is built for professionals in the light manufacturing or fabrication segments who are looking for a smaller, more versatile machine. This machine is capable of welding metals up to 1/2-inch thick with an output rating of 230 amps and 25.5 volts at a 60-percent duty cycle.

Can a Millermatic 255 weld aluminum? ›

With the flexibility of running on 208 or 240-volt input power and the ability to weld up to ½” aluminum, stainless or mild steel, the Millermatic 255 may well be the only machine you need.

Are Miller Welders better than Lincoln? ›

Miller gets the nod for making better MIG and TIG welding machines. Which makes sense given their pioneering role in developing these processes. Lincoln is known for their excellence with stick welding machines, the process they developed a century ago.

What is the hardest welder to learn? ›

TIG welding is the hardest form of welding to learn for a variety of reasons. The process of TIG welding is slow and takes time to get used to as a beginner. A TIG welder requires a foot pedal to feed the electrode and control the variable amperage while maintaining a steady hand at the welding torch.

How thick can 225 amps weld? ›

For thicker material, an AC/DC TIG welder making 225 amps can weld 1/2-inch metal.

What type of welder makes the strongest weld? ›

What Type Of Weld Is The Strongest? TIG welding is often considered the strongest weld since it produces extreme heat, and the slow cooling rate results in high tensile strength and ductility.

How thick can you weld with 250 amps? ›

A 250-amp unit can weld 1/2” steel.

How many amps does a Miller 255 draw? ›

General Specifications
TitleMillermatic® 255 MIG/Pulsed MIG Welder - 208/240V
Input Amperage31.4
Current TypeDC
Rated Output230 A at 25.5 V, 60% duty cycle
Max Open Circuit Voltage87 VDC
17 more rows

Is a bigger weld stronger? ›

The strength of the weld is determined by the filler metal used and its effective area. The effective area of a weld is determined by multiplying the length of the weld times the throat. So the bigger the throat the larger the effective area and thus the stronger the weld.

What size spool for miller 255? ›

The Multimatic 255 also has pulsing capability that allows it to do pulsed MIG and TIG welding. Compatible with push-pull MIG guns. Increases productivity by allowing the use of 12-inch wire spools versus a spool gun's 4-inch spools.

Is Pulse MIG better for aluminum? ›

Pulse MIG is best known as a great process for welding aluminium, however it is also an excellent process for welding with stainless-steel and bronze wires. In many cases, Pulse MIG can achieve results that are comparable to TIG welding, but with speed and productivity that is superior to TIG.

What is pulsed MIG welding? ›

Pulsed MIG welding is a modified spray transfer process, in which the power source switches between a high peak current and a low background current between 30 to 400 times per second. During this switch, the peak current pinches off a droplet of wire and propels it to the weld joint.

How many amps do you need to MIG weld aluminum? ›

A common rule of thumb is that you will need 1 amp for every 0.001 inches of metal you are going to weld when other variables are constant. That means if you want to weld 1/8-inch aluminum, you will need around 125 amps when other factors are constant.

What is the best all around welder? ›

Here's a list of some of the best welders for home use on the market:
  1. Eastwood MIG 180 Home MIG Welder. ...
  2. YesWelder MIG-205DS Multi-Process Home Welder. ...
  3. Hobart Handler 140 - Best Home MIG Welder. ...
  4. Hobart Stickmate 160i - Best Home Stick Welder. ...
  5. Lincoln Electric K2278-1 Handy Core. ...
  6. Forney Easy Weld 140 MP Multi-Process Welder.
Jan 9, 2023

Are Hobart welders as good as Miller? ›

The Hobart Handler 210MVP price beats the Miller 211 while doing most of the same things. Plus, it comes with one of the best warranties for a MIG welder on the market. So, the performance-to-price ratio for the 210 MVP wins out for most welders.

What position is the hardest to weld? ›


The overhead position weld is the most difficult position to work in. The welding will be performed with the two pieces of metal above the welder, and the welder will have to angle him or herself and the equipment to reach the joints.

What is the easiest welder to learn on? ›

MIG Welding (Beginner)

MIG welders are among the best type for beginners, as they're designed with a wire welding electrode on a spool that is fed at a pre-selected speed through a welding gun. As a semi-automatic or automatic process, gas metal arc welding (GMAW or MIG), is the easiest to learn.

Is there a lot of math in welding? ›

Needless to say, math is critical in the field of welding and proves itself to be very necessary for a welder to do their job successfully. Knowing whole numbers, fractions, decimal conversion, geometry, formulas, trigonometry, and other math skills make a welder invaluable to their team.

How thick can you weld with .030 wire? ›

0.030 Flux-Cored Wire. The 0.030” diameter flux-cored wire is a typical hobbyist-level wire meant for thinner metal. It's primarily used for light welding work outdoors or by people who don't want to bother with the whole MIG shielding gas setup. It will weld anything between 22 gauge and 14 gauge thick.

How many amps does it take to weld 1 4 steel? ›

Welding 1/4-inch steel in a single pass requires roughly 180 amps. The phrase in a single pass is the key. Because a series of thin passes can be made to weld thicker material per pass, less amperage is required.

What size breaker do I need for a 225 amp welder? ›

50A 2-pole 240V breaker and minimum #12 wire. The smaller wire is perfectly fine because this machine has a 20% duty cycle.

What is the weakest weld? ›

The minimum cross-section of the fillet is at the throat. Therefore the failure due to tensile stress occurs at the throat section. Thus the weakest area of the weld is the throat.

Which welding is harder then stick welding? ›

MIG welding is much easier for a beginner to learn than stick welding. However, setting up MIG welding equipment can be quite complex as there are a number of variables to consider, including wire size and type, gas, contact tips, and nozzle type.

What is the hardest metal to weld? ›

Aluminum Welding

Aluminum is a nightmare for welders. It is considered the most difficult metal to weld, because, in its ore or alloy form, it has various physical and chemical properties that need to be understood in detail before working on it.

Can I plug a welder into a regular outlet? ›

Lower voltage welders are designed to work in a home outlet, while the higher voltage models need higher capacity plugs such as the kind used for electric driers.

What size generator do I need for a 250 amp welder? ›

Welder with maximum output of 250A

The minimum suitable generator size for such welders is 13kva.

What happens if the amperage is too high welding? ›

Wire feed speed/amperage too high: Setting the wire feed speed or amperage too high (depending on what type of machine you're using) can cause poor arc starts, and lead to an excessively wide weld bead, burn-through, excessive spatter and poor penetration.

What is the most powerful 240V MIG welder? ›

IN STOCK. The Warrior 350 Single-Phase MIG Welder is possibly the most powerful 240V single-phase inverter MIG welder on the market. It is especially designed for heavy fabrication where only a single phase 240V/32A supply is available.

Is Miller 255 AC DC? ›

The Miller Multimatic® 255 multi-process welder is a 350 amp portable welder. It is capable of DC Pulsed TIG, DC TIG, Stick, MIG and Pulsed MIG welding.

Can a millermatic 250 weld aluminum? ›

The Miller® Millermatic® 250/Vintage (043084) Spool gun Module is required for aluminum welding with 10 pin Spool Gun Hookup. The 250 Vintage Millermatic spool gun module uses Flux Core (FCAW) and MIG (GMAW) Welding processes.

How do I know if my weld is strong enough? ›

The sign of a quality and secure weld is that you will not see the weld at all. If there is any visible evidence of a weld, it will be in the form of a bead that has no holes or cracks and is uniform overall. A high-quality weld is made using high-quality materials.

Why is large weld size frowned upon? ›

Bigger welds cause distortion – the biggest contributing factor causing distortion is the size of the weld. The bigger the weld, the stronger the shrinkage forces. Formulas that estimate the amount of distortion make this quite clear. For more on this topic read 7 Ways to Control Distortion.

Does welding over a weld weaken it? ›

Defects which are welded over, and not melted out, can suffer locally intensified strain age embrittlement by static or dynamic strain ageing at the region of concentrated strain at the flaw tip, leaving a planar defect with its tip in a region of low toughness (Dawes M G).

What is the duty cycle of Millermatic 255? ›

Rated at 175 amps at 60 percent duty cycle.

Do you need a spool gun to weld? ›

If you don't have (or just don't want) a spool gun, you can still MIG weld aluminium. While a spool gun is designed to make the whole process easier, your MIG welder is just as capable of getting the job done. Aluminium is softer than mild and stainless steel, making it a lot fiddlier to work with.

What are the disadvantages of pulse welding? ›

Its disadvantages include limited wire feed speed, and deposition rates. There is also a danger of “cold lapping” on thicker metals. This is where there is not enough energy in the puddle to fuse properly. Short circuit also produces an increased amount of spatter over the other transfer methods.

Is Double Pulse MIG worth it? ›

Double pulse MIG welding is a cooler procedure as there's even more downtime between the high amperage moments, so you need more amps in the peak to get full penetration. It's great for a good-looking weld because it creates the stacked dime effect of TIG with a MIG machine and no effort from the operator.

Is Pulse Welding strong? ›

The pulse setting gives you far more control over the welding process without compromising the strength and integrity of your weld.

What are the pros and cons of pulse MIG welding? ›

Its advantages include high deposition rates, good penetration, strong fusion, good weld appearance with little spatter. Its disadvantages include high heat input, a limited range of welding positions and proneness to burn-through on thin materials.

What is the advantage of pulse welding? ›

Pulse MIG Welding Advantages

Decreased distortion due to lower heat inputs. Less spatter and need for rework or secondary passes. Higher deposition rates when welding out of position. Stronger welds due to better fusion compared to other transfer modes.

What gas do you use for pulse welding? ›

Gas shielding is typically comprised of 100% argon or argon/helium blends. Stainless steel — Pulsed MIG typically uses a 98% argon and 2% CO2.

What is the best gas for MIG welding aluminum? ›

Welding gas for aluminum

The most common gas used for MIG welding aluminum is 100% argon. This gas allows you to get into a spray transfer or pulsed spray transfer mode easily for aluminum due to its low ionization value. Another benefit of 100% argon gas is that it can also be used for TIG welding aluminum.

Do you MIG weld aluminum on AC or DC? ›

While AC (alternating current) is required for TIG welding of aluminium, this is not the case for MIG. Virtually all common MIG welding machines operate on DC (direct current) only, whether used for welding steel or aluminium.

What size breaker do I need for a MIG welder? ›

The circuit breaker that is most often used on welder installations is a double pole 60 amp size (in which case the feeder conductors must be sized accordingly) although the 50 amp size is usually more than adequate to serve the light-duty work for which most workshop units are used.

How many amps does a millermatic 255 draw? ›

General Specifications
TitleMillermatic® 255 MIG/Pulsed MIG Welder - 208/240V
Input Hz50/60 Hz
Input Amperage31.4
Current TypeDC
Rated Output230 A at 25.5 V, 60% duty cycle
17 more rows

How thick can a 250amp welder weld? ›

A 250-amp unit can weld 1/2” steel.

What size breaker for Miller 255? ›

Re: What size breaker for miller 255 (Millermatic)

A 255 calls for 8 wire in pipe or 6 in cable. (if its the same as a 251) In reality it wont overheat a 10 wire with 035 and c25. The machine comes with 50 end then it uses a 50 breaker.

How many amp breaker do I need for a 240V welder? ›

The circuit breaker that is most often used on welder installations is a double pole 60 amp size (in which case the feeder conductors must be sized accordingly) although the 50 amp size is usually more than adequate to serve the light-duty work for which most workshop units are used.

Are larger welds stronger? ›

The strength of the weld is determined by the filler metal used and its effective area. The effective area of a weld is determined by multiplying the length of the weld times the throat. So the bigger the throat the larger the effective area and thus the stronger the weld.

How many amps do I need to weld 1 4 steel? ›

Welding 1/4-inch steel in a single pass requires roughly 180 amps. The phrase in a single pass is the key.


1. Inverter vs. Transformer MIG Welders - What's the Difference? Kevin Caron
(Kevin Caron, Artist)
2. Miller Multimatic 220 Welder Review - Full demo & update after using it for 2 years!
(Baker's Gas)
3. How to MIG Weld Aluminum: Spool Gun Aluminum Welding for Beginners
4. MIG Welding: What Size Wire Should I Use?
5. Miller Electric Multimatic 235 Review
(Baker's Gas)
6. Which Multimatic is best for you? Multimatic 235 vs Multimatic 215 vs Multimatic 220
(Baker's Gas)


Top Articles
Latest Posts
Article information

Author: Errol Quitzon

Last Updated: 06/22/2023

Views: 5482

Rating: 4.9 / 5 (79 voted)

Reviews: 86% of readers found this page helpful

Author information

Name: Errol Quitzon

Birthday: 1993-04-02

Address: 70604 Haley Lane, Port Weldonside, TN 99233-0942

Phone: +9665282866296

Job: Product Retail Agent

Hobby: Computer programming, Horseback riding, Hooping, Dance, Ice skating, Backpacking, Rafting

Introduction: My name is Errol Quitzon, I am a fair, cute, fancy, clean, attractive, sparkling, kind person who loves writing and wants to share my knowledge and understanding with you.