Description

Miller Dynasty 400 AC/DC TIG Welder

Part Number: MR907858002

The Miller Dynasty 400 AC/DC TIG Welder is a powerful and compact machine designed for first class AC/DC TIG welding, with the capability to weld up to 16mm aluminium. Built for precision, reliability and advanced control, it combines high-performance arc characteristics with a user-friendly LCD interface for demanding professional welding applications.

With advanced controls such as multiple AC waveforms, AC frequency control, Blue Lightning™ high-frequency arc starting, Quiet Pulse™, and independent AC balance and amperage control, the Dynasty 400 is designed to deliver exceptional weld quality across a wide range of materials and applications.

Welding Processes

• Stick (SMAW)
• Pulsed TIG (GTAW-P)
• AC/DC TIG (GTAW)

Applications

• Aerospace
• Heavy fabrication
• Precision fabrication
• Aluminium ship repair
• Pipe and tube fabrication
• Anodized aluminium fabrication

Key Features

• Intuitive LCD interface
• Multiple AC waveforms
• Blue Lightning™ high-frequency arc starter
• AC frequency control
• Quiet Pulse™
• Pro-Set features
• Auto-Line Technology™
• Program memory
• USB port
• Locks & limits
• Cooler Power Supply (CPS)

AC & DC TIG Features

• Independent EP and EN amperage control
• Extended AC balance control
• AC frequency control (20–400 Hz)
• Peak amperage adjustment
• High-speed DC pulse control
• Peak time and background amperage adjustment

Stick Features

• Tailored arc control (DIG)
• Hot Start adaptive control
• Smooth arc performance for 7018
• More penetrating characteristics for 6010

Specifications

Input Power

3-Phase

Welding Amperage Range

3–400A

Rated Output at 100% Duty Cycle

250A at 30V

Rated Output at 60% Duty Cycle

300A at 32V

Electrical Data

Input 208V: 28A / 36A
Input 230V: 26A / 33A
Input 400V: 14A / 19A
Input 460V: 13A / 16A
Input 600V: 10A / 12A

50/60 Hz KVA: 10.3 / 13.1
KW: 9.8 / 12.5

Max Open Circuit Voltage

75 VDC (10–15 VDC sense voltage for low OCV stick and Lift-Arc TIG)

Dimensions

Height: 613 mm (1,095 mm with TIG Runner)
Width: 352 mm (587 mm with TIG Runner)
Depth: 618 mm (1,057 mm with TIG Runner)

Net Weight

57 kg (112 kg with TIG Runner)