Syncrowave® 250 DX TIG Welders | Miller - MillerWelds

Syncrowave® 250 DX 200/230/460 V

Syncrowave 250 DX has proven itself time and time again in the most demanding applications. Its industrial design and construction ensure reliable operation for years to come.
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What's Included

  • Syncrowave® 350 LX
  • (2) 50 mm Dinse style connectors
Squarewave technology
Squarewave technology was developed by Miller Electric in 1976 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.
Balance control
The balance control is adjustable to provide additional oxide removal (more cleaning) or lesscleaning based on the condition of the material being welded.
Syncro Start™
This allows the choice of Soft, Standard or Hot TIG starts based on the application, lead lengths and tungsten size.
Digital welding meters
Display both amperage and voltage for viewing of the actual and preset values for greater accuracy and repeatability in your welding procedure.
Last procedure recall
Simplifies changing your Syncrowave back and forth from aluminum TIG to stainless TIG to Stick welding. One switch makes all the control panel changes.
Adaptive Hot Start™
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.

Not Included

  • Primary cord
  • TIG torch adapter



Air Carbon Arc Cutting and Gouging (CAC-A)
Stick (SMAW)
Pulsed TIG (GTAW-P)
Aluminum Welding

General Specifications

Title Syncrowave® 250 DX 200/230/460 V
Industries Interests Auto / Cycle (Racing, Customizing, Restoring)
DIY / Home Hobbyist
Farm and Ranch
Metal Art / Sculptures
Boat / Yacht
High Purity Processing
Current Type AC / DC
Input Hz 50 / 60 Hz
Input Phase 1-Phase
Portability Lift Eye (Standard)
Running Gear / Cart (Optional)
Input Voltage 208 V
220/230/240 V
460/480 V
Max Open Circuit Voltage 80 VDC
Weldable Metals Aluminum
Mild Steel
Stainless Steel
Warranty Miller's True Blue Warranty
CACA Thickness 3/16 in
Amperage Min 3 A
Amperage Max 310 A
Material Thickness Steel: 0.012 in. (0.3 mm) - 1/2 in. (12.7 mm)
Aluminum: 0.015 in. (0.4 mm) - 3/8 in. (9.5 mm)