Miller Big Blue 600 X

Three-Phase Rotatong Field

Efficiently produces smooth DC weld output using 20 – 30% less fuel than a rotating armature-type DC generator.

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.


Automatically enhances Stick welding, especially on pipe, by focusing the arc and preventing the electrode from going out.


Provides positive Stick electrode starts making it easy to start all types of electrodes and it also works great for bead tie-ins.

Quick and Easy Maintenance

Single-side access to oil level check, oil fill, oil filter, fuel filter and air cleaner.

Remote Tool-Less Oil Drain

Allows oil to be drained without getting under the engine and reduces the chance of oil spillage.

Heavy-Duty Low Speed Industrial Diesel Engine

Designed, built and proven to operate over 10,000 hours before the first basic overhaul.

Weatherproof Lexan® Nameplate

Resists cracking and fading, and is color-coded for ease of operation.

Meter Maintenance Displays

  • Fuel gauge.
  • Hour meter function.
  • Oil change interval.
  • High coolant temperature and low oil pressure shutdowns.
  • Low fuel shutdown — engine shuts down before system runs out of fuel, making restarts easy.

Auxiliary Power*

  • 2 X 15 Amp Sockets.
  • RCD.

* Generator auxiliary power is 60Hz, and intended for operating equipment associated with welding, such as angle grinders, drills  and floodlights. Some Australian 50Hz equipment incorporating induction motors, such as pumps, fans, air compressors, refrigeration or air-conditioners, may not operate correctly and could be damaged. Refer to appliance supplier or manufacturer to confirm suitability

Technical Data

Welding Mode:  CC/CV/DC

Amp/Volt Range: 20 - 60 a

Rated Output: 500 A at 25V, 100% Duty cycle, 550 A at 34V 100% Duty cycle, 600 A at 30 V 100 Duty Cycle

Generator Power: Peak 5 500 Watts, Continuous: 4 000 Watts, 17  A, 240 VAC, 60 Hz

Dimensions (mm): H 1092  W: 724 D: 1654

Weight (without Fuel): 769 kg

Applications and Features


Structural Steel

Sheet Metal

Process Piping

Mining Maintenance

Maintenance and Repair Rigs

Heavy Construction


Submerged Arc



Flux Cored


Air Carbon Arc