Miller Trailblazer 325 EFI (Petrol)

For productive, profitable, quieter job sites


Trailblazer welder/generators deliver unbeatable arc performance providing the smoothest, most stable arc in the industry.

Exclusive Auto-Speed™ technology delivers superior runtimes, increased fuel efficiency, and improved performance.

Delivering more welding power or more auxiliary power with better fuel efficiency and less noise than any other machine in its class — for productive, profitable, quieter jobsites.

Improve fuel efficiency for maximum productivity and profitability with Electronic Fuel Injection (EFI).

Where to Buy

Product Overview


  • Structural Steel Work
  • Sheet Metal
  • Repair
  • Pipe
  • Maintenance
  • Fabrication
  • Construction

What's In The Box

  • Trailblazer 325 EFI Power Source


For details, refer to the Miller warranty statement.

Unbeatable Arc Performance

Wide amperage output with better welding deposition rates means you can get jobs done faster, saving time and money. The Trailblazer also has precise arc control, which allows you to finetune the arc to match your personal preferences and quickly dial in the perfect parameters to optimize weld quality and maximize productivity across a variety of applications and welding processes.

Electronic Fuel Injection (EFI)

Improve fuel efficiency for maximum productivity and profitability. Adding EFI to your Trailblazer welder/generator adds multiple benefits. With EFI, you’ll get faster, more reliable starts in any weather— no choke adjustments needed. EFI-equipped Trailblazer machines are also up to 42 percent more fuel efficient than standard carburettor models, improving profitability. Plus, refueling less frequently means you’ll spend more of your time welding, improving productivity.

Fewer Refueling Trips

No other engine driven welder/ generator in the 300 amp class lets your crews spend more time working and less time refuelling — because only Trailblazer welder/generators provide Auto-Speed™ technology to deliver maximum runtime.

Cleaner & Stronger Generator power

Trailblazer welder/generators offer 10,500 watts of clean, truly usable generator power that is Accu-Rated™, not inflated: tested to deliver uninterrupted peak output of 12,000 watts for a minimum of 30 seconds for big loads, so you can get more jobs done.

An independent welder and generator power system ensures no interaction between job-site tools and the welding arc, while advanced generator technology virtually eliminates power spikes and other electrical imperfections - so welds are cleaner and job-site tools can run without interruption, maximizing quality, productivity and profit.

Auto-Speed Technology™

Matches engine speed to load - a Miller exclusive. Get the welding power you need plus reduced fuel consumption and lower noise levels for a more-profitable, safer job-site. Unlike competitive machines that operate at 3,600 rpm (max) under any load, Miller exclusive Auto-Speed technology responds to weld requirements by automatically adjusting engine speed to one of four rpm levels so the engine never works harder than necessary. Refuelling time and operating costs are reduced, which means more productivity and profitability. Plus everyone on the job-site gets a better working environment because noise levels and exhaust emissions are lowered.

Auxiliary Power*

  • 2 x 15 Amp Sockets.
  • 1 x 50A.
  • 120/140 V receptacle with circuit breaker.

*Generator auxiliary power is 60Hz, and intended for operating equipment associated

with welding, such as angle grinders, drills and floodlights. Some New Zealand 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.


  • MIG
  • Stick
  • TIG
  • 1 Phase
  • Rated Output
    325 A at28 V, 100% Duty Cycle
    325 A at 28 V, 100% Duty Cycle
  • Generator Continuous Power
    10,500 watts
  • Generator Peak Power
    12,000 watts
  • Rated Carbon Diameter
  • Current Type
  • Amperage Range
    CC/DC (Stick/TIG) 10 - 325 A
    CV/DC (MIG/FCAW) 10 - 32 V
  • Weld Output
    CC / CV
  • Dimensions (mm)
    H: 711 mm
    H: 832 mm (to top of exhaust)
    W: 508 mm
    D: 1029 mm
  • Weight (without fuel)

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