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

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

Current price is: $31,544.00. Original price was: $36,432.00.

13% off
SKU: 907866 Categories:

Product Description

  • Efficiency iconDual Operator Efficiency
  • Diesel en </div> <h2>Dual-Operator Diesel Engine-Driven Welder with Quiet Operation and Fuel Efficiency (450A Output) #907866</h2> <div style=

    The Miller Big Blue® 450 Duo CST™ diesel welder/generator delivers reliable dual-operator capability and exceptional arc performance for industrial multi-operator welding applications. Powered by a 24.7 hp Mitsubishi S4L2 Tier 4 Final diesel engine, this welder supports Stick, DC TIG, and Air Carbon Arc Cutting and Gouging processes.

    Each power source provides 400A at 100% duty cycle for single-operator use or 200A per operator at 100% duty cycle for dual-operator use. With a 13.5-hour runtime at 50% load and a quiet operation of 71 dBA at 23 feet, it is ideal for jobsites that require both power and efficiency.

    Download literature of this machine:

    Miller True Blue 3-year warranty

Processes

  • Stick (SMAW)
  • DC TIG (GTAW) Lift-Arc™
  • Air carbon arc (CAC-A) – Rated: 3/16-inch (4.8 mm) carbons (paralleled)
  • Air plasma cutting and gouging with optional Spectrum® models

Highlights

  • Dual-Operator Capability: Allows two welders to operate independently with full control, providing up to 200 amps per operator at 100% duty cycle.
  • Fuel Efficiency: Delivers a 13.5-hour runtime on a 13-gallon tank at 50% load, reducing refueling downtime and operational costs.
  • Quiet Operation: Operates at 71 dBA at 23 feet, quieter than many single-operator models, improving jobsite communication and reducing noise hazards.
  • Adaptive Hot Start™: Prevents electrode sticking by automatically increasing amperage during arc starts for smoother operation.
  • Auxiliary Power Output: Provides 4,000 watts (120/240V) of continuous single-phase power for jobsite tools and lights.
  • Heavy-Duty Mitsubishi Engine: Designed to run 10,000 hours before major overhaul, ensuring long-term durability and reliability.
  • Vandalism Lockout Kit: Lockable hinged steel panel protects front controls and ignition switch for added security.

What’s Included

  • Big Blue® 450 Duo CST™ w/ Tweco®-style connectors

Not included: Weld leads

Industries

  • Structural Steel Fabrication
  • Pipeline Construction
  • Heavy Manufacturing
  • General Construction
  • Maintenance and Repair Operations (MRO)

Miller Big Blue® 450 Duo CST™ #907866 - What's Included

Benefits of the Miller Big Blue® 450 Duo CST™

  • Enhanced Productivity: Dual-operator capability allows two welders to work simultaneously, doubling efficiency on the job site.
  • Superior Arc Performance: Adaptive Hot Start™ ensures consistent arc starts on difficult electrodes like E6010.
  • Versatility: Supports Stick, TIG, and air carbon arc gouging processes for a wide range of applications.
  • Energy Efficiency: Reduced fuel consumption lowers operating costs and increases runtime.
  • Durability: Mitsubishi engine delivers long-term performance with minimal maintenance.
  • Jobsite Safety: Quiet operation improves communication and reduces noise hazards.
  • Specifications – Big Blue® 450 Duo CST™
    Processes Air Carbon Arc Cutting and Gouging (CAC-A)
    Stick (SMAW)
    TIG DC (GTAW-DC)
    Ind

    SHIPPING DIMENSIONS

    Height: 34.00 Inches
    Width: 58.00 Inches
    Length: 28.00 Inches
    Weight:

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