Miller Big Blue 400X Pro with ArcReach Standard Machine Package Kubota Diesel Engine Miller MR907732011-1

Miller Big Blue 400X Pro with ArcReach Standard Machine Package Kubota Diesel Engine Miller MR907732011-1

The Miller Big Blue® 400X Pro with ArcReach® Standard Machine Package is a rugged, professional-grade engine-driven welder generator powered by a Kubota heavy-duty diesel engine. Designed for demanding jobsite environments, this machine uses ArcReach® welding technology to reduce non-value-added time, allowing operators to adjust welding parameters at the arc—maximizing arc-on time, improving weld quality, and enhancing jobsite safety.

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Key Features & Benefits

ArcReach® Welding Technology

Enables weld parameter adjustments directly at the point of use, reducing unnecessary trips to the power source while increasing productivity and operator safety.

Auto Remote Sense™

Automatically detects when a remote control is connected to the 14-pin receptacle, eliminating confusion between remote and panel control selection.

HD Powder Coat Protection

Zinc-rich primer combined with a durable powder coat finish helps protect sheet metal from rust and corrosion, ensuring long-term durability in harsh environments.

Infinite Arc Control

Provides precise adjustment of arc characteristics for Stick, TIG, MIG, and FCAW welding, allowing optimized performance across a wide range of applications.

Lift-Arc™ TIG with Auto Crater & Auto Stop

Delivers smooth TIG arc starts without high frequency. Auto Crater and Auto Stop features help reduce tungsten and workpiece contamination.

Thermal Overload Protection

Prevents machine damage by automatically protecting the system if duty cycle limits are exceeded or airflow is obstructed.

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Standard Features

• ArcReach® capability

• Digital preset weld meters

• Automatic idle control

• Cold weather starting aids

• Digital meters with SunVision™ technology for improved visibility in direct sunlight and at wide viewing angles

• Industrial USB port for fast software updates, diagnostics, and machine performance data downloads

• Remote oil drain for clean, spill-free maintenance

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Arc Control Capability

Improves arc stability when welding with stick and solid wires, making fine-tuning easier for difficult materials and out-of-position welding applications.

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Auxiliary Power Output*

• 1 × 240 V, 60 Hz, 32 Amp, single-phase socket

• 2 × 240 V, 60 Hz, 15 Amp, single-phase sockets

• RCD protection

*Auxiliary generator power operates at 60 Hz and is intended for welding-related equipment such as grinders, drills, and floodlights. Some Australian 50 Hz equipment with induction motors may not operate correctly or could be damaged. Please consult the equipment manufacturer to confirm compatibility.

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Low OCV Stick (VRD) Safety Feature

Reduces open-circuit voltage to 30 volts when not welding, improving operator safety without compromising arc starting performance.

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Engine & Warranty

• Heavy-duty, low-speed industrial diesel engine

• 3-Year Miller Warranty covering parts and labour

• Engine warranty provided separately by the engine manufacturer

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Part Number / SKU: MR907732011-1