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Dynasty® 350 &370 Series

Latest Technology! The Dynasty 350 is a powerful, compact power source capable of welding up to 5/8" aluminum. Total arc control provides maximum productivity and weld quality while conserving energy compared to traditional welding machines.

Miller Dynasty® 350 Series Product Literature (PDF)

Miller Dynasty® 350 &370 Series

Dynasty® 350 Series

Dynasty 350 Wireless Foot Control Complete Package
  • Dynasty 350 power source
  • Quick Reference Guide:
    English | Spanish
  • 8 ft (2.4 m) primary cord
  • DVD set-up video
  • (2) Dinse 50 mm connectors
  • Coolmate 3.5 Cooling System
  • Runner Cart with Accessories
  • Wireless Remote Foot Control
  • Coolant (4 gal)
  • Torch kit - Includes:
    • Weldcraft® CS310 water-cooled torch w/cable cover
    • Accessories - cups, collets, bodies & 2% cerium tungsten 3/32, 1/8, 5/32
  • Gas hose
  • Regulator/flowmeter
  • Work lead w/clamp 15 ft (4.6 m)
  • Welding Capability
    Not to scale

    Aluminum Min.
    0.015" (0.38 mm)
    Steel Min.
    0.012" (0.3 mm)

    Aluminum Max.
    5/8" (15.9 mm)
    Steel Max.
    5/8" (15.9 mm)

    Blue Lightning™ - High Frequency Arc Starter for TIG non-contact arc initiation. Provides more consistent arc starts and greater reliability compared to traditional HF arc starters. Easy to set up and increases productivity.

    Compatible with Wireless Remote Controls. Improve productivity, eliminate clutter and cord tangles in the work area. Eliminate cord failure and associated downtime/repair costs and extend the operator's welding range without adding cord extensions.

    AC TIG Features
    Independent AC Amperage Control allows the EP and EN amperages to be set independently. Extends tungsten performance.

    Extended AC Balance (30-99%) controls the amount of oxide cleaning (amperage time in EN) which is essential for high quality welds on aluminum.

    AC frequency (20-400 hz) controls the width of the arc cone and the force of the arc.

    AC Waveforms

    Advance Squarewave, fast freezing puddle, deep penetration, and fast travel speeds.

    Soft Squarewave for a soft buttery arc with maximum puddle control and good wetting action.

    Sine wave for customers that like a traditional arc. Quiet with good wetting.

    Triangular wave reduces the heat input and is good on thin aluminum. Fast travel speeds.

    DC TIG Features
    Exceptionally smooth and precise arc for welding exotic materials.
    High-Speed DC Pulse reduces heat input and increases travel speeds.

    Stick Features (AC/DC)

    Tailored arc control (DIG) allows the arc characteristics to be changed for specific applications and electrodes. Smooth running 7018 or stiffer, more penetrating 6010.

    Hot Start™ adaptive control provides positive arc starts without sticking.

    AC frequency control adds additional stability when Stick welding in AC for smoother welds.

    Low OCV Stick is a simple design that reduces open-circuit voltage to 5-10 VDC when power source is not in use. This built-in circuit design eliminates the need for add-on voltage reducers.


  • TIG (GTAW)
  • Pulsed TIG (GTAW-P)
  • Stick (SMAW)

  • Applications

    Heavy Industrial
  • Precision Metal Fabrication
  • Heavy Fabrication
  • Pipe and Tube Fabrication
  • Aerospace
  • Aluminum Ship Repair
  • Anodized Aluminum Fabrication

  • Specifications

    Input Power
  • 208-575 V, 3- or 1-Phase Power

  • Rated Output
  • 3-Phase: 300 A at 32 V, 60% Duty Cycle
        Single-Phase: 225 A at 29 V, 60% Duty Cycle

  • Welding Amperage Range
  • 3 - 350 Amps

  • Net Weight
  • 135.5 lb (61 kg)
  • 268.5 lb (122 kg), with TIGRunner®
  • Miller recommends Maxal
    aluminum electrodes

    Welding Machine