Description

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 CAT Industrial Diesel Engine

With the reliability you expect from Miller, the CAT C1.5T turbo-charged three-cylinder, liquid-cooled, industrial diesel engine is backed by world-class support and service through the global CAT dealer network.

ArcReach Technology

Exclusive ArcReach technology uses existing weld cables to communicate process adjustment commands back to the engine-driven welder. 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

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.

Auto-Process Select

Depending on polarity and which ArcReach accessory is connected, the system automatically detects and switches to the correct process - reducing the need to access the power source.

Control Panel Lock Out

While under control of an ArcReach accessory, process and amperage/voltage adjustments are locked out at the power source, preventing accidental changes by personnel other than the welding operator.

Fleet Compatibility

• Cross Platform Compatible. The same ArcReach accessories that work on engine-driven equipment can also be used on select ArcReach-equipped XMT, Dimension, and PipeWorx 350 FieldPro power sources.
• Reverse Compatible. ArcReach-equipped power sources work with non-ArcReach accessories; however, the complete ArcReach benefit is only realized with the ArcReach system.

Increased Productivity & Safety

Other Standard Features

Digital preset weld meters, output contactor control, and automatic idle.

ArcReach Heater Compatibility

Take charge of your field preheat and bakeout applications up to 600 degrees Fahrenheit (315°C). This system uses induction heating to generate heat in workpieces, so welders can do their own preheating quickly and safely. A part of the ArcReach technology platform, the ArcReach Heater is an accessory for select ArcReach welding power sources.

Specifications

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