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West Country Welding Supplies

Miller Big Blue 400 - West Country Welding Supplies, UK - West Country Welding Supplies, UK

Miller Big Blue 400

Miller True Blue Warranty Logo


All Miller machines come with Miller True Blue three year warranty.

Miller Big Blue 400Designed for fleet owners, easy to maintain and always ready to weld. Prior Big Blue 302 owners now have a choice between the Big Blue 400 or the PRO 300.

Maintenance displays:

  • Engine hours
  • Hours left before an oil change is due
  • Fuel gauge & low fuel shutdown indicator
  • High coolant temperature and low oil pressure shutdown indicators

Main Features

  • Designed and built with reliable, heavy-duty industrial components that allow operation in remote locations, without downtime.
  • Enclosed robust case design protects internal components from impact and allows air flow to cool and prolong the life of the engine. Also reduces sound levels.
  • The Vault ultimate control board reliability in CC/CV models. Hardened solid-state control technology, housed in a sealed vault. The vault's sealed connections are made through watertight plugs that make these components impenetrable to dust and moisture.
  • Cleaner running tier II engines; Deutz 2011 and Perkins 404 Series.
  • Hot Start™ provides positive Stick electrode starts to make it easy to start all types of electrodes, and works great for bead tie-ins.
  • Arc-Drive makes the welding easy. Automatically enhances Stick welding, especially on pipe, by focusing the arc and preventing the electrode from going out.
  • 5500-watt peak generator power that is independent of weld settings which means no interaction between tools and the welding arc.
  • Quick and easy maintenance with single-side access to oil level check, oil fill, oil filter, fuel filter and air cleaner.
  • CSA and NEMA compliant.
  • Automatic engine shutdown protects engine if low oil pressure or high coolant temperature occurs.


  • Stick (SMAW)
  • TIG (GTAW)
  • Air Carbon Arc (CAC-A) thru 5/16" carbons
  • Stud Welding
  • MIG (GMAW) *
  • Flux Cored (FCAW) *
  • With CC/CV Models


  • Manufacturing Industrial
  • Heavy Construction
  • Structural Steel Work
  • Maintenance and Repair Rigs
  • Mining
  • Process Plant Piping
  • Sheet Metal


Rated Output at 104° F (40°C)

  • 400 A at 36 V (14.4 kW), 100% duty cycle

Output Power Range

  • DC Stick: 55 - 500 A
  • MIG/FCAW: 14 - 40 V (CC/CV models)

Generator Power - rated at 104°F (40°C)

  • 5,500 Watts Peak, 4000 Continuous
  • 15,000 Watts 3-phase/12,000 1-Phase* Deluxe model only

Net Weight

  • Deutz 1655 lb (751 kg)
  • Perkins 1545 lb (701 kg)


  • Deutz: 35 HP at 1800 RPM
  • 3 cylinder, industrial air/oil-cooled
  • Perkins: 33 HP at 1800 RPM
  • 4 cylinder, industrial liquid-cooled

Contact us for more details or to discuss any of your welding needs

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