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D325K 3+12 Diesel Engine Driven Welder

Red-D-Arc D325K 3+12 (Miller Trailblazer 325) Diesel Engine Welder Generator with ArcReachRed-D-Arc D325K 3+12 Diesel Engine Driven Welder Generator ComboRed-D-Arc D325K 3+12 (Miller Trailblazer 325) Diesel Engine Welder with ArcReach on Trailer

Top Features

  • DC CC CV 12kW
  • 12,000 Watts Peak, 10,500 Watts Continuous 120 VAC Power
  • Excel Power – 2,400 watts, 20 A at 120 V, 60 Hz at Idle Speed and While Welding
  • Kubota D902, 24.8 HP Liquid-Cooled Diesel Engine
  • Low Noise Level – 81.5 dBA at 23 ft at 325 A Load
  • Processes: Stick (SMAW), TIG (GTAW), MIG (GMAW), Pulsed MIG, Air Carbon Arc Cutting, Flux-Cored (FCAW) , RMD

Red-D-Arc D325K 3+12 diesel engine welder generators deliver unbeatable arc performance providing the smoothest, most stable arc in the industry. Exclusive technologies - Auto-Speed and Excel power - deliver superior runtimes, increased fuel efficiency, and improved welder/generator performance

Product Details


Model: D325K 3+12 (907755006)
Welding Mode:DC CC CV
Rated Welding Output:325 A, 33 V, 100% Duty Cycle
Maximum OCV:100
Weld Output Range:CC/DC: 10 - 325 A
CV/DC: 13 - 35 V, 10-325 A
Generator Power Rating:Continuous: 10.5 kVA/kW, 88/44 A, 120/240 V AC, 60 Hz, Single-Phase,
Peak: 12 kVA/kW
Fuel Capacity:12 gal (45 L) tank
Sound Levels:81.5 dB @ 325A load or full-generator load (at 23 feet)
Engine:Kubota D902 water-cooled, three-cylinder, four-cycle, 24.8 HP diesel engine
Weight:620 lbs
Dimensions:L: 45.375" x W: 20" x H: 28" ( 711 mm x 508 mm x 1,153 mm)
To top of exhaust tube: 34.375" (873 mm)


Stick (SMAW)



Pulsed MIG

Air Carbon Arc Cutting

Flux-Cored (FCAW)


Additional Features

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.

Excel Power
Excel Power delivers a full 2,400 watts (20 amps) of 120-volt inverter-based, pure sine wave power at all engine speeds, including at idle. Able to operate jobsite tools, like grinders, at quiet, fuel-saving speeds

Dynamic DIG
Dynamic DIG is an ultra-adaptive arc control. Unlike conventional DIG that provides a preset amount of short-clearing current, Dynamic DIG works on a time-based algorithm that automatically adjusts the amount of current required to clear a short, providing a smoother more consistent arc that can be tailored to match the application, material, fit-up, and welder technique

Provides remote control of the power source without a control cable. ArcReach allows you to change weld settings from your ArcReach feeder or remote, saving a trip to the power supply using the existing weld cable to communicate welding control information between the feeder or remote and the power source thus eliminating the need for control cords

D325K 3+12 Diesel Engine Driven Welder

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Airgas, an Air Liquide company, is the nation's leading single-source supplier of gases, welding and safety products. Known locally nationwide, our distribution network serves more than one million customers of all sizes with a broad offering of top-quality products and unmatched expertise.