Miller Electric 350 LX, 250 DX manual AC Output Balance Control

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Additional Features

Pulsed TIG control lowers the heat input into the part and reduces warping and distortion (optional on 250 DX models).

TIGRunner™ system packages with Coolmate™ 3X cooler. A 3-gallon cooling system equipped with a visual flow indicator ensures that the coolant is flowing. An external coolant filter stops foreign objects from entering the water cooled torch cable for better flow and longer life. Extended cooling capacity ensures maximum productivity. 3-year cooler warranty.

Stick welding features such as Adaptive Hot Start™ provide good arc strikes without sticking. Once welding, the DIG control makes dynamic adjustments to the welder to ensure smooth E7018 and deep penetration E6010.

Tilted operator interface and built-in consumable drawer provide added convenience to your welding experience.

Arc timer/cycle counter records actual welding time and number of arc starts. Great for estimating job costs.

Squarewave technology developed and patented by Miller Electric in 1976. Squarewave technology was developed to improve your weld quality and make TIG welding easier. Miller Squarewave technology provides arc stability when welding aluminum, prevents arc rectification and eliminates tungsten erosion.

Welding aluminum? Oxides that form on aluminum melt at temperatures over 3700° F. The aluminum material that is located under this layer of oxide melts at 1200° F. The Syncrowave’s AC Squarewave welding current automatically removes the layer of oxide which is necessary for producing high quality welds.

Do you have power fluctuations?

The Syncrowave compensates for power fluctuation without changing your welding parameters. Line voltage compensation works on fluctuating power ±10%.

NEW! Easy Load Dual Cylinder Rack ➡

minimizes cylinder lifting. (Cylinder not included.)

AC Output: Balance Control

AC Balance

 

 

 

 

Balanced Wave Function

4

5

6

 

 

 

 

Balanced Wave

3

 

7

Medium bead

 

 

 

50%

2

 

8

 

 

 

 

Electrode

1

 

9

 

 

 

Bead

Positive

 

 

 

 

 

 

 

 

 

50%

0

 

10

 

 

 

 

 

 

 

 

 

Electrode

Balanced

 

 

 

 

 

Cleaning

Negative

4

5

6

Narrower bead

Narrow bead, with no

More Heat into Work

3

 

7

visible cleaning

32%

 

 

 

for fillet welds

 

 

 

2

 

8

 

 

 

 

Electrode

1

 

9

 

 

 

Bead

Positive

 

 

 

 

68%

0

 

10

 

 

 

 

 

Max.

 

 

 

 

Electrode

Penetration

 

No Visible Cleaning

Negative

4

5

6

 

Wider bead and

Greatest Cleaning Action

 

 

cleaning action

3

 

7

Wide bead

 

 

 

 

 

55%

 

 

 

 

 

2

 

8

 

 

 

 

 

 

 

 

 

Electrode

1

 

9

 

 

 

Bead

Positive

0

 

10

 

 

 

45%

 

 

 

 

 

 

Max.

 

 

 

 

Electrode

Cleaning

 

 

 

 

 

Cleaning

Negative

 

 

 

 

2

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Contents Max. Open-Circuit Voltage 80 VDC TIG/Stick Welding Power SourceSee page 2 for Additional features Miller Electric Mfg. CoAC Output Balance Control Performance Data Control Panels Common Bottom PanelTIGRunner Packages Syncrowave Power SourcesPackages Syncrowave Complete PackagesField Options Genuine Miller AccessoriesRemote Controls and Switches Water Coolant Systems Genuine Miller AccessoriesTungsten Torch KitsOrdering Information

350 LX, 250 DX specifications

Miller Electric has long been recognized as a leader in the welding equipment industry, and their Miller Electric 250 DX and 350 LX models showcase the superior technology and innovation that the brand is known for. These machines are designed to provide high-quality welding performance and user-friendly convenience, catering to both professional welders and hobbyists alike.

The Miller Electric 250 DX is a versatile DC multi-process welder capable of TIG, MIG, stick, and even flux-cored welding. One of its standout features is the Auto-Set function, which simplifies the welding setup process. By automatically adjusting the machine settings based on the material thickness and type, this feature allows users to spend less time on preparations and more time welding. Additionally, the 250 DX's wide range of output power—from 5 to 250 amps—makes it ideal for diverse applications, from thin sheet metal to heavy-duty fabrication.

On the other hand, the Miller Electric 350 LX takes versatility a step further. With the capacity to handle both AC and DC welding, it is perfect for a variety of applications, including aluminum welding, which often requires AC output. The 350 LX also incorporates advanced technologies such as Auto-Set Elite, providing precise, easy-to-navigate control over parameters for both novice and experienced welders. This not only enhances the user experience but ensures consistent and high-quality welds every time.

Both models feature the i-TIG function, which allows for easy toggling between different welding processes without needing to modify the setup extensively. Furthermore, with sturdy construction and portable design, these machines are built to withstand the rigors of job site environments while being easily transportable.

The additional presence of a built-in temperature control system helps prevent overheating, ensuring durability and reliability. Miller's commitment to safety is evident in both models, which include advanced features like automatic shut-off and fault detection.

In summary, the Miller Electric 250 DX and 350 LX are two exceptional welding machines that combine user-friendly functions, cutting-edge technology, and robust design. Whether for professional or personal use, these welders promise to deliver outstanding performance, ensuring that they meet the diverse needs of modern welders. Both models stand as a testament to Miller Electric's dedication to quality and innovation in the welding industry.
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