Miller Big Blue 400 Pro W/ WIC 907774003

Part Numbers: 907774003
1 Review
$26,796.00* Save $3,593.00

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    Welding type:







    Engine Driven

    Engine Driven

    Material type:

    Mild Steel

    Mild Steel

    Stainless Steel

    Stainless Steel



    • TIG Welding
    • MIG Welding
    • Stick Welding
    • 3-Phase Power
    • Engine Driven
    • 3-Year Miller Warranty

    Miller Big Blue 440 Pro W/ WIC #907774003

    Designed with the professional in mind, the Big Blue 400 Pro is the best for ease of use, reliability and fuel economy. Now with optional Wireless Interface Control, you can work hassle-free with full control of the machine in the palm of your hand.


    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.

    Dynamic DIG™

    Unlike conventional DIG that provides a preset amount of short-clearing current, Miller’s proprietary Dynamic DIG works on a time-based algorithm that automatically adjusts the amount of current required to clear a short. What does this mean? A smoother more consistent arc that can be tailored to match application, material, fit-up, and welder technique.

    Quiet Operation

    • Improves work site safety 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 latest software and download machine log files to retrieve in-depth information such as diagnostics and machine statistics. Learn More
    • Auto Remote Sense™ (ARS)
    • 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 Powder 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 safety without compromising arc starts.

    Auto Remote Sense™ (ARS)

    Detects if a remote control is plugged into the 14-pin receptacle and eliminates confusion of a remote/panel switch.

    Other Standard Features

    Output contactor control, automatic idle, thermal overload protection, and 120-volt engine block heater.

    Not Included

    Weld leads

    Check out a full selection of MIG, TIG, Stick, and Gas welders available at Welder's Supply

    Miller Big Blue 400 Specifications:

    Industries Interests Construction
    Maintenance and Repair
    Mechanical Contracting
    Pipe Fabrication/Construction
    Processes Air Carbon Arc Cutting and Gouging (CAC-A)
    Stick (SMAW)
    Flux Cored (FCAW)
    MIG (GMAW)
    Carbon Diameter 3/16 in (4.8 mm)
    Current Type DC
    Input Voltage 575 V
    Input Phase 3-Phase
    Input Hz 50 / 60 Hz
    Portability Lift Eye (Standard)
    Running Gear / Cart (Optional)
    Net Height 32 in
    Net Length 56 in
    Net Weight 950 lbs
    Weldable Metals Specialty Metals
    Stainless Steel
    Net Width 26.25 in
    Max Open Circuit Voltage
    85 VDC
    Weld Ouput CC 
    Warranty 3 Years
    Miller's True Blue Warranty

    Manufacturer Reviews

    By: Terry
    Awesome welding machine. Unfamiliar with the Maintenance of things but very worth it. Costs $18 to fill up, lasts for couple days. Would like to know how to change the voltage not amps when stick welding. But very awesome machine !

    Product Questions and Answers

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