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Not available for sale in the USA

Big Blue® 400

Designed for fleet owners, easy to maintain and always ready to weld.


  • 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 D2011203: 32 HP at 1800 RPM
    EPA Tier 4i Compliant
  • Perkins 404D-22: 32.6 HP at 1800 RPM
    EPA Tier 4i Compliant

Special Offers
Big Blue 400 CC or CC/CV Engine-Driven welder generator

Big Blue 400 CC Model Shown with optional SuitCase® X-TREME™ 12VS wire feeder

Product Literature (PDF)

Every component in a Miller industrial engine drive is engineered and built to assure ultimate reliability in the most punishing conditions. What makes Miller Industrial Engine Drives so Tough?
View Video >>
View Brochure [PDF] >>

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

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 VaultThe 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.

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.

Powerline Financing