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Miller BIG BLUE 400 PRO (MITSUBISHI) W 907733002

Part Numbers: 907733002
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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
  • Engine Driven
  • 3-Year Miller Warranty

Miller Big Blue® 400 Pro (Mitsubishi) w/ Wireless Interface Control & ArcReach® 907733002

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.


Wireless Interface Control

Get full control of your machine in the palm of your hand, from wherever you are on the jobsite, so you can work hassle-free. With wireless interface control, you can:

  • Change welding processes
  • Adjust parameters
  • Select and save preset programs
  • Turn the machine on/off
  • View service reminders 
  • And more!

Extend time between fill-ups and maintenance intervals while eliminating the need to go back to your machine to make adjustments.

Heavy-Duty Low-Speed Mitsubishi S4L2 Industrial Diesel Engine 

Used in industrial applications around the world, the S4L2 is designed to run 10,000 hours before a major overhaul. Backed by worldwide support and service.

ArcReach® Technology 

ArcReach technology uses existing weld cables to communicate process adjustment commands back to the welder generator. With an ArcReach system, amperage & voltage are conveniently located at the operator's fingertips - not back at the power source.

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. &

Industrial USB Port 

Quickly upload the latest software and download machine log files to retrieve in-depth information such as diagnostics and machine statistics.

Fuel Savings 

When your welder/generator is far away, it's time-consuming to walk back to turn it off, so it ends up running all day. Use Wireless Interface Control to instantly turn your machine off when needed, saving fuel and money.

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.

Increased Productivity & Safety 

More arc-on time, and reduced exposure to slip, trip, and fall hazards can be realized using Wireless Interface Control or ArcReach because less time is spent going back to the welding power supply to make adjustments.

Less Noise 

Running a welder/generator all day makes for a loud job site — and can keep you and those around you from hearing sounds that warn of potential hazards. Wireless Interface Control makes it easy to shut off the machine when it's not in use, so you can hear what's going on around you.

Other Standard Features 

  • Output contactor control
  • Automatic idle
  • Thermal overload protection
  • 120-volt engine block heater.
View our welding machineswelding machine accessories & safety equipment.

Big Blue® 400 Pro (Mitsubishi) w/Wireless Interface Control & ArcReach®

Industries Interests Mechanical Contracting
Maintenance and Repair - Field Operations
Pipe Fabrication / Construction
Single Phase Generator Continuous Power 10000 W
Current Type DC
Portability Lift Eye (Standard)


Height: 32.00 Inches
Width: 26.25 Inches
Length: 56.00 Inches
Weight: 993 Lb(s) 0 Oz

Manufacturer Reviews

By: Rob
Purchased this for American Welding Academy welding school. We are using this to give students a "real " feel of what it is like welding on an engine driven machine. They love it. This is a sweet machine that can be dialed in for just about any job. Love Miller and Big Blue!!

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