The Miller Dynasty 400 AC/DC is a high-capacity, professional TIG (GTAW) and Stick (SMAW) welding power source engineered for demanding industrial, fabrication, and repair applications. It combines robust welding output, full AC/DC capability, and advanced digital control features to handle thick aluminium, exotic alloys, and heavy steel work with precision and reliability.
Key Features & BenefitsPowerful Output — Delivers up to 400 A with strong arc performance, capable of welding aluminium and steel in demanding settings.
Auto-Line™ Wide Input Voltage — Accepts 208–600 V single- or three-phase without manual linking, making it ideal for variable or unpredictable power environments.
Advanced AC Arc Control & Waveform Options
• Multiple AC waveforms (square, soft square, sine, triangular) for precise oxide cleaning, puddle control, and directional control.
• AC balance and frequency adjustments give control over cleaning action and arc cone focus.
QuietPulse™ Technology — Helps reduce audible noise when using DC pulse modes by smoothing transitions between background and peak currents.
Smart Interface & Memory — LCD display with guided menus, parameter locking (“Locks & Limits”), and program memory to save and recall multiple weld profiles.
Pro-Set™, Blue Lightning™, Lift-Arc™ — Features to simplify setup and enhance arc starts:
• Pro-Set™ offers preset control guidance for balance, pulse, etc.
• Blue Lightning™ provides reliable HF arc initiation.
• Lift-Arc™ allows AC or DC arc start without HF, useful in sensitive environments.
Stick Welding Capability — Full support for SMAW including DIG control, Hot Start, and Stick-Stuck™ protection.
Cooling & Integration — Includes Cooler Power Supply (CPS) receptacle for Miller’s Coolmate™ 3.5, and “Cooling-On-Demand” operation to save energy and reduce noise.
Rugged Design, Connectivity & Updates — USB interface for firmware updates, meter calibration, and backing up parameters.
Typical Application Range — Ideal for heavy fabrication, aerospace, ship repair, and welding thicker sections of aluminium and steel.
No detailed specifications are available for this product.
There are no downloads for this product.
There are no reviews for this product yet. Be the first to add one!
Anyone who has spent time TIG welding knows that when everything comes together, the results can be excellent.
When it comes to TIG welding, even the smallest improvements in equipment can make a significant difference to weld quality, productivity and operator comfort. One product that has rapidly gained a loyal following amongst professional fabricators, motorsport engineers, pipe welders and hobby welders alike is the Furick TIG Cup. Designed to maximise gas coverage while improving weld visibility and access, Furick cups have become one of the most talked-about TIG welding accessories in recent years.
