Miller Big Blue® 450 Duo CST™ Diesel Engine-Driven Welder

Built for Heavy-Duty Performance

Introducing the BigBlue® 450 Duo CST™, the ultimate diesel engine-driven welder designed to elevate your welding game. Whether you’re in pipe welding, structural fabrication, or maintenance and repair, this machine is engineered to deliver consistent, high-quality results every time.

Key Features

Dual Operator Capability

• Simultaneous Stick & TIG Welding: Experience dual arcs with independent output controls, allowing two operators to work efficiently on separate projects or combine outputs for larger tasks.

Powerful Output Range

• Stick (SMAW): 30–280 A (separate) or 60–450 A (parallel)
• TIG (GTAW): 5–280 A (separate) or 10–450 A (parallel)

Auxiliary Power

• 10,500 watts peak, 8,900 watts continuous at 104°F (40°C). Perfect for running tools and equipment on-site.

Built to Last

• Mitsubishi S4L2 Engine: Reliable four-cylinder, liquid-cooled diesel engine, designed for 10,000 hours of operation before major overhauls.
• Quiet Operation: At just 71 decibels from 23 feet, worksite communication is improved without sacrificing performance.
• Thermal Overload Protection: Prevents damage due to excessive duty cycles or blocked airflow.

Advanced Welding Technologies

• Adaptive Hot Start™ for Stick: Automatically boosts output amperage to prevent electrode sticking, ensuring a smooth start every time.
• Lift-Arc™ for TIG: Initiate arcs without high frequency for greater control and cleaner starts.

Durability Meets Convenience

• Vandalism Lockout Kit: Lockable steel panel protects the control panel and ignition switch, providing peace of mind on job sites.
• Digital Meter Display: Get precise control and monitoring of welding amperage.

Specifications

• Dimensions: 32 in. H x 26.25 in. W x 56 in. D
• Weight: 1,064 lb. (without fuel)
• Fuel Capacity: 10 gallons
• Engine Power: 24.7 HP, EPA Tier 4 Final compliant

Applications

• Heavy Industrial Work
  • Pipe Welding
  • Structural Fabrication
  • General Fabrication
  • Maintenance and Repair
  • Rental Fleets

Warranty Information

• Engine-Driven Welder: 3-Year Warranty (parts and labor)
• Engine: Warrantied separately by the engine manufacturer.

Upgrade Your Welding Game Today!

Don’t compromise on quality or performance. Invest in the Big Blue® 450 Duo CST™ Diesel Engine-Driven Welder and experience unmatched versatility and reliability. Order now to take your welding to the next level!

For discounted pricing please email us at sa***@******mi.com or contact us at 833-305-9353