Description

Miller Dynasty 400 DX AC/DC TIG Welder

EXCEPTIONALLY SMOOTH & PRECISE ARC CONTROL FOR DEMANDING APPLICATIONS

The Miller Dynasty 400 DX AC/DC TIG Welder is a premium solution for high-precision TIG welding applications. Designed for heavy fabrication, precision welding, and complex materials, this machine provides exceptional arc control for various processes, including TIG, Stick, and Pulsed TIG welding. With advanced waveform control, Auto-Postflow, and a robust cooling system, the Dynasty 400 DX is ideal for fabricators who need precise results on materials such as aluminum, stainless steel, and exotic metals. The unit is also equipped with Miller’s exclusive Auto-Line™ technology, making it compatible with a wide range of input voltages.

Key Features:

• AC TIG Features:
  • Independent Amplitude/Amperage Control: Allows for precise adjustment of each electrode for customized arc performance.
  • Balance Control: Adjusts oxide removal to improve the quality of aluminum welds.
  • Frequency Control: Adjusts arc cone width for better directional control.
• AC/DC Pulse Functionality:
  • Pulsing technology increases arc stability and travel speeds while minimizing heat input and reducing distortion.
• AC/DC Stick Features:
  • DIG Control: Fine-tune arc characteristics for specific electrodes.
  • Hot Start Adaptive Control: Ensures positive arc starts without sticking.
  • AC Frequency Control: Adds stability for smoother AC Stick welds.
• AC Waveforms:
  • Advanced Squarewave: Deep penetration and fast travel speeds.
  • Soft Squarewave: Creates a buttery arc for maximum puddle control.
  • Sine Wave: Quiet, traditional arc with smooth wetting.
  • Triangular Wave: Reduces heat input, ideal for thin aluminum with fast travel speeds.
• Lift-Arc™ & Blue Lightning™:
  • High-frequency arc starting for non-contact arc initiation, resulting in reliable arc starts and minimal tungsten contamination.
• Wind Tunnel Technology™:
  • Protects internal components from airborne contaminants, extending product life.
• Fan-On-Demand™:
  • Operates the cooling fan only when needed, reducing noise, energy use, and airborne contamination.
• Program Memory:
  • Save up to 9 independent program settings, reducing setup time for complex or repetitive tasks.
• Cooler Power Supply (CPS):
  • Integrated 120-volt receptacle for Coolmate™ 3.5 cooler for improved performance and efficiency.
• Auto-Postflow:
  • Automatically calculates postflow time based on amperage to protect tungsten and eliminate porosity.
• VRD Functionality:
  • Voltage Reduction Device (VRD) provides enhanced safety in accordance with AS1672.2 Category C.
• 3 Year Warranty:
  • Backed by Miller’s True Blue Warranty for reliability and peace of mind.

Technical Specifications:

• Processes: TIG (GTAW), Stick (MMAW), Pulsed TIG (GTAW-P), Air Carbon Arc (CAC-A)
• Input Power: 3 Phase
• Amp Range: 3-400 A
• Rated Output:
  • 250 A at 30 V, 100% Duty Cycle
  • 300 A at 32 V, 60% Duty Cycle
  • 400 A at 36 V, 20% Duty Cycle
• Max Open Circuit Voltage: 75 V DC (10-15 V DC with VRD)
• Dimensions:
  • With TIG Runner: H: 1095 mm, W: 587 mm, D: 1111 mm
  • Without TIG Runner: H: 629 mm, W: 349 mm, D: 559 mm
• Weight: 61 kg (Power Source Only), 114 kg (with TIG Runner)