Miller Dynasty 400 Amp AC/DC Tig Welder with Runner W/C

Stock Code: WPMDYN400RC
MPN: 907858003
£8,460.56 (exc VAT) per 1
£10,152.67 (inc VAT)
Quantity: - +

Miller Dynasty 400 Amp AC/DC Tig Welder with Runner W/C

 The Miller Dynasty 400 AC/DC Tig welder brings industrial-class performance to professional welders order online from Wasp Supplies.


This is a ready to weld package including Miller Dynasty 400 AC/DC power source, Miller Coolmate 1.3 water cooler, 4 wheel Running gear, CK18-12 Tig Torch, earth lead, gas hose. This is a ready to weld package with all hoses and fitting pre assembled for you to plug in and weld. Optional extras include Miller Foot controls either wired or wireless, gas flow meter and regulator, see options below.


Capable of delivering up to 400 amps of AC/DC TIG welding power, this unit provides exceptional arc stability, advanced pulsing and precise AC wave-shaping for superior aluminum welds. Its user interface is configurable for quick setup, with memory channels for common processes.

Designed with reliability in mind, the Miller Dynasty 400 features robust cooling, heavy-duty connectors and serviceable components to minimize downtime. Whether you’re doing thin-gauge aerospace work, pipe welding, or heavy fabrication, the machine’s response and control let experienced welders dial in smooth, consistent welds.

For shops that need flexible workflow, the Dynasty 400 supports remote foot/hand controls, a range of torch options and integration with pulse, TIG and Stick applications.

Pair it with genuine Miller consumables and accessories to maximize performance and extend torch life.


  • Up to 400 A AC/DC TIG output for heavy-duty welding
  • Refined AC wave-shaping and balance control for clean Aluminum welds
  • Advanced pulsing modes for heat control and bead appearance
  • Auto-line or wide input voltage compatibility
  • Intuitive digital controls with memory presets for repeatable setups
  • Built-in protections: thermal overload, voltage/current sensing
  • Compatible with remote foot/hand controls and industry-standard torches
  • Durable, serviceable design with quality Miller components

Ideal for the following :-

  • Fabricators: Faster set-up, consistent weld quality, less rework
  • Aerospace & precision shops: Fine control and pulsing for thin materials
  • Pipe & pressure system welders: Robust output and arc stability for root passes
  • Maintenance/repair: Versatile — TIG for precision, Stick for field repairs
  • Welding trainers and schools: Durable, predictable machine behaviour for teaching


See Full spec sheet in Downloads section below

MPN907858003
BRANDMiller
WEIGHT57 kg
ConditionNew
Voltage208–600 V

Click on any of the following links to download the file.

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