Miller Big Blue 400 Pro (Kubota)

Miller Big Blue 400 Pro (Kubota) 1

Miller Big Blue 400 Pro (Kubota)

MILL 907732

Miller Big Blue 400 Pro (Kubota)

Designed with the professional in mind, the Big Blue 400 Pro is the best for ease of use, reliability and fuel economy.


  • Heavy-Duty Low-Speed Kubota V1505 Industrial Diesel Engine: Used in industrial applications around the world, the V1505 is designed to run 10,000 hours before major overhaul. Backed by worldwide support and service.
  • Quiet Operation: Improves work site safely and communication.
  • Digital Meters with SunVision: Enables welding parameters to be viewed with greater clarity at virtually any angle. Meters can be seen clearly even in direct sunlight.
  • Industrial USB Port: Quickly upload the altest software and download machine log file to retrieve in-depth information such as diagnostics and machine statistics.
  • Auto Remote Sense: Detects if a remote control is plugged into the 14-pin receptacle and eliminates confusion of a remote/panel switch.
  • Simple-to-Set Controls: Requires no elaborate procedure- just select process and weld!
  • Hd Power Coat: All painted sheet metal is pretreated with a zinc-rich primer to provide extra protection against rust & corrosion (comparable to stainless steel).
  • Advanced Features for the Professional Welder:
    • Adaptive Hot Start makes starting stick electrodes easy without creating an inclusion.
    • Infinite arc control available in the Stick and Wire modes for easier fine tuning of tough-to-weld materials and out-of-position applications.
    • Lift-Arc TIG provides arc starting that minimizes the risk of electrode/work contamination without the need for high frequency.
  • Low OCV Stick (VRD): When activated, reduces the open-circuit voltage to 15 volts when the power source is not in use, increasing operator safely without compromising arc starts.
  • Other Standard Features: Output contactor control, automatic idle, thermal overload protection, and 120-volt engine block heater.
  • Not Included:
    • Weld Leads

General Specifications:

  • Title: Big Blue 400 Pro (Kubota)
  • Industries Interests: Construction, Fabrication, Infrastructure, Maintenance and Repair- Field Operations, Mechanical Contracting, Pipe Fabrication/Construction, Work/ Service Trucks
  • Cold Weather Starting Aids: Engine Block Heater, Glow Plugs
  • Engine Brand: Kubota
  • Engine Compliance: T4F
  • Engine Idle Speed: 1500 RPM
  • Engine Weld Speed: 1800 RPM
  • Fuel Tank Size: 11.5 Gallons
  • Fuel Type: Diesel
  • Horsepower: 20.2 hp
  • Weldable Metals: Steel, Stainless Steel
  • Rated Output: 400 A at 24 V, 100% duty cycle, 350 A at 27 V, 100% duty cycle, 300 A at 32 V, 100% duty cycle
  • Single Phase Generator Continuous Power: 10000 W
  • Single Phase Generator Peak Power: 12000 W
  • Sound Rating: Idle: 66 db, Weld: 71.6 dB dB
  • Rated Carbon Diameter: 3/16 in (4.8 mm)
  • Current Type: DC
  • Max Open Circuit Voltage: 85 VDC
  • Amperage Range: 20-400
  • Portability: Lift Eye (Standard), Trailer (Optional)
  • Weld Output: CC
  • Net Width: 26.25 in
  • Net Height: 32 in
  • Net Length: 56 in
  • Net Weight: 950 lbs
  • Warranty: 3 Years

Due to this product's shipping weight and fluctuating freight costs, please call us to order. 325-651-1408

  • Miller Big Blue 400 Pro (Kubota) 2