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Syncrowave 350 LX TIG Welder

Top Features

  • 3 - 400 Amps Welding Range
  • AC Balance Control, Dual Digital Meters
  • Last Procedure Recall
  • Processes: Air Carbon Arc Cutting, Stick (SMAW), TIG (GTAW), Pulsed TIG

Syncro Start™ for customized arc starts allows the operator to choose from three different starting conditions to optimize the application according to tungsten diameter and material thickness.

Product Details


Welding Amperage Range: 3 - 400 A
Rated Output: 350 A at 34 VAC, 40% duty cycle
Maximum OCV: 80 V
Input Power: Requires 1-phase power
Weight: 496 lb (225 kg)
Dimensions: H: 33.25" (845 mm) W: 22.5" (572 mm) L: 25" (635 mm)
Product specifications and availability may vary by country


Air Carbon Arc Cutting

Stick (SMAW)


Pulsed TIG

Additional Features

Squarewave output with AC balance control features adjustable penetration and cleaning action while increasing arc stability on various aluminum alloys, and helps eliminate tungsten spitting and arc rectification. Dual digital meters allow for quick and easy viewing of actual and preset values of amperage and voltage. Last procedure recall automatically recalls the last procedure set-up when switching polarity. Built-in preflow/postflow provides 0.2 - 5 seconds of preflow and 0 - 50 seconds of postflow. Built-in consumable storage located on the front panel allows the operator to store and readily access the needed consumables to be more productive. Fan-On-Demand™ operates only when needed — reducing noise, power consumption, and the amount of airborne contaminants pulled through the machine. Lift-Arc™ start provides TIG arc starting without the use of high frequency. LVC™ Line Voltage Compensation keeps output of the power source constant regardless of fluctuation in input power ± 10%. Adaptive Hot Start™ for Stick automatically increases output amperage at the start of a weld should the start require it and prevents the electrode from sticking and creating an inclusion.

All Product Resources

Options, Accessories and Related Equipment

No. 37 Running Gear
Remote Foot Control
Pulsed TIG Control
See Miller AD/4.2 for a full list of options and accessories

Syncrowave 350 LX TIG Welder

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Airgas, an Air Liquide company, is the nation's leading single-source supplier of gases, welding and safety products. Known locally nationwide, our distribution network serves more than one million customers of all sizes with a broad offering of top-quality products and unmatched expertise.