Description

Miller Big Blue 400X Pro with ArcReach

The Miller Big Blue 400X Pro with ArcReach is a robust engine-driven welder/generator built for professional use in structural steel, process piping, mining maintenance, and construction. Designed for fuel efficiency and reliability, this machine supports multiple welding processes, including Stick, MIG, TIG, flux-cored, and air carbon arc gouging (CAC-A). It offers 400A output and 10,000 watts of continuous auxiliary power, making it suitable for demanding jobsite applications.

Equipped with ArcReach technology, the Big Blue 400X Pro eliminates unnecessary trips to the power source by enabling remote welding parameter adjustments, improving arc-on time and jobsite safety. The Auto Remote Sense™ feature detects remote controls automatically, simplifying operation and avoiding confusion. With thermal overload protection and lift-arc TIG with Auto Crater and Auto Stop, the welder prevents damage, ensuring smooth starts and contamination-free finishes.

The low-speed diesel engine is designed for heavy-duty performance, offering quiet operation and extended service intervals. The machine’s HD powder-coated frame with a zinc-rich primer protects it from rust and corrosion, ensuring long-term durability even in harsh environments. An industrial USB port allows for quick software updates and diagnostic data retrieval, while the low OCV stick (VRD) feature enhances operator safety.

Key Features:

• 400A Welding Output: Supports Stick, MIG, TIG, and flux-cored welding
• ArcReach Technology: Remote parameter adjustments for increased efficiency
• Auxiliary Power: 10,000W continuous and 12,000W peak power output
• Lift-Arc TIG with Auto Crater: Clean starts and contamination-free finishes
• Auto Remote Sense™: Detects remote controls automatically
• Thermal Overload Protection: Prevents damage from duty cycle exceedance
• SunVision Digital Meters: Clear readings even in direct sunlight
• Heavy-Duty Diesel Engine: Designed for quiet and efficient operation

Applications:

• Structural steel fabrication
• Pipe welding and mining maintenance
• Maintenance and repair rigs
• Heavy construction projects

Specifications:

• Welding Mode: Stick/TIG (CC/DC), MIG/FCAW (CV/DC)
• Welding Range: 20-400A; 14-40V
• Rated Output: 400A @ 24V (100%), 350A @ 27V (100%)
• Generator Power: 12,000W peak, 10,000W continuous
• Dimensions: H: 813mm, W: 667mm, D: 1422mm
• Weight: 431kg (net); 456kg (shipping); +75kg with full fuel tank

Included Features:

• Auxiliary Power Outputs: 42A, 240V AC (60Hz)
• Cold Weather Starting Aids & Auto Idle
• Remote Oil Drain for Easy Maintenance

Warranty:
Covered by Miller’s 3-year True Blue warranty for parts and labor. The diesel engine is warranted separately by the engine manufacturer.

The Miller Big Blue 400X Pro with ArcReach offers unmatched reliability, versatility, and ease of use, making it the ideal solution for industrial welding, construction sites, and maintenance projects.