Miller DYNASTY 400DX AC/DC Water-Cooled TIG Welder

Unmatched performance—the best inverter AC/DC argon (TIG) and covered electrode (MMA) welding machine, delivering superior product reliability and arc performance.

Independent Voltage/Amperage Control ensures that EP and EN amperages and heat inputs can be adjusted independently and flawlessly.

The Spread Balance (30–99%) feature removes oxidation during aluminum welding, ensuring high-quality aluminum welds.

AC frequency (20–400 Hz) controls the width of the weld bead and the power of the arc.

The AC waveform (square wave, sine wave, and triangle wave) ensures flawless arc characteristics.

The high-speed DC TIG pulse feature (5,000 pulses/sec) produces welds with an excellent appearance.

A soft start feature is available for 7018 or harder electrodes, while a stronger penetration feature is available for 6010.

Thanks to the hot start feature, the electrode ignites very easily at the start of welding, and electrode sticking is prevented during welding.

The Auto-Line feature ensures that welding performance and arc stability remain unchanged even during mains voltage fluctuations ranging from 208 to 575 V.

Thanks to wind tunnel technology, electronic components and PC boards are protected from contaminants such as dust.

Fan-On-Demand™ technology activates cooling only when necessary, keeping energy consumption and noise to a minimum.

Nine independent program memories that store and support your parameters.

Programmable startup parameters provide independent startup options depending on the process selection.

The HF feature enables the arc to start without the tungsten electrode touching the workpiece.

The Lift-Arc feature allows the arc to start by lightly touching the tungsten electrode to the workpiece without sticking.

With the automatic shielding gas adjustment feature, the necessary adjustments for the final gas flow and current ramp at the end of welding are made automatically based on the amperage. This eliminates the need to readjust for different amperages. As a result, the tungsten electrode is protected, and crater formation at the end of welding is prevented.

• DKO: Duty Cycle