MIller Big Blue 600X Duo Air Pak 50Hz ArcReach 50Hz Engine Drive Welder MR907763001-1
Big Blue® 600X Duo Air Pak™ 50Hz Engine-Driven Welder with ArcReach® – Miller
Part No. MR907763001-1
Product Overview
The Miller Big Blue® 600X Duo Air Pak™ 50Hz is the most powerful 50Hz engine-driven welder in its class, delivering unmatched welding output, generator power, and integrated air compression for the most demanding industrial applications. Producing up to 600 amps of welding power, 18,000 watts of continuous generator output, and 45 CFM of compressed air, this all-in-one machine is built for extreme productivity in the field or on site.
Featuring ArcReach® welding technology, the Big Blue 600X Duo Air Pak minimizes non-value-added time by allowing weld settings to be adjusted at the arc—maximizing arc-on time, improving weld quality, and enhancing jobsite safety.
When paired with an ArcReach® heater, users also have the option to unlock integrated heating capabilities, further expanding jobsite versatility.
All-in-One Jobsite Solution
Whether working in remote field locations or large industrial sites, the Big Blue® 600X Duo Air Pak™ 50Hz combines:
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High-output welding power
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Continuous generator power
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Integrated air compressor
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Heavy-duty gouging capability
—all in a single rugged machine.
Welding Processes Supported
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Stick Welding (SMAW)
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MIG Welding (GMAW)
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Flux-Cored Welding (FCAW)
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DC TIG Welding (GTAW)
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Pulsed MIG (GMAW-P)
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RMD®
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Submerged Arc Welding (SAW)
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Stud Welding
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Air Carbon Arc (CAC-A) Cutting & Gouging
Applications
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Mining Maintenance
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Maintenance & Repair Rigs
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Pipe Welding
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Mechanical Contracting
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Construction
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Railroad Maintenance
Integrated Air Compressor Specifications
Compressor Brand
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Ingersoll Rand CE55 G1
Compressor Design & Features
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Rotary screw compressor with electric clutch for on/off control
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Oil change interval: 500 hours (aligned with engine service intervals)
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Expected service life: 30,000 hours
Air Output
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45 CFM (1.7 m³/min)
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100 psi (690 kPa) at 100% duty cycle
Operating Pressure
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Constant 100 PSIG (7 bar)
Duty Cycle
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100%
Oil Capacity
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3.79 L
Automatic Compressor Shutdown
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Triggered by high oil temperature
Compressor Warranty
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3 Years
Engine Specifications
Engine Brand
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Deutz TD2011L04W
Horsepower
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65.7 HP
Engine Type
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Turbo-charged, four-cylinder, liquid-cooled industrial diesel
Compliance & Features
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EPA Tier 4i compliant
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Includes oil pan heater and intake manifold heater
Engine Speed
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Idle: 1,350 RPM
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Welding: 1,500 RPM
Capacities
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Fuel: 95 L
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Engine Oil: 10.4 L
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Coolant: Integrated oil cooling
Sound Levels (Measured at 7 m)
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Idle: 71.3 dB (96.1 Lwa)
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Welding at 600 A Load: 76.1 dB (101.0 Lwa)
Automatic Engine Shutdown Protection
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Low oil pressure
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High coolant temperature
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Low fuel level
Why Choose the Big Blue® 600X Duo Air Pak™ 50Hz?
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Highest welding output available at 50Hz
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Integrated air compressor and generator power
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ArcReach® technology for increased productivity
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True heavy-duty gouging performance
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Ideal for mining, pipeline, rail, and industrial maintenance
Part Number / SKU: MR907763001-1



