Big Blue® 450 Duo CST Engine-Driven Welder | MillerWelds

Big Blue® 450 Duo CST™ (Mitsubishi)

907477
The Big Blue 450 Duo CST is a rugged, compact, fuel-efficient diesel engine driven welder that provides 2 superior arcs in one economical package.
Spec Sheet (English) Spec Sheet (French) Spec Sheet (Spanish)

Features

Quiet Operation
At just 72.2 decibels at 23 feet (7 m), it's quieter than most single-operator models, improving jobsite communication and safety.
Adaptive Hot Start™ For Stick Arc Starts
Automatically increases the output of a weld should the start require it.  Prevents the electrode from sticking and creating an inclusion.
High Efficiency
Three-Phase, rotating-field auxiliary power unit requires less fuel and horsepower to operate.
Remote Amperage Control
Provided through 14-pin receptacle on front of the machine.  This permits use of standard and wireless remote amperage control devices.
Multi-function Fuel Gauge
Displays fuel level and engine hours, and can be customized to set oil change interval reminders. In the case of high coolant temperature, low oil pressure, or low fuel level, the engine will shut down to prevent damage, or make restarting easier.
Heavy-Duty Low-Speed Mitsubishi S4L2 Industrial Diesel Engine
Used in industrial applications around the world, the S4L2 is designed to run 10,000 hours before major overhaul. Backed by worldwide support and service.
Vandalism Lockout Kit
Lockable hinged steel panel protects front control panels and ignition switch.
6010 Stick Electrode Capability
Superior Stick arc performance even on the difficult-to-run electrodes like E6010.

Not Included

  • Weld leads

Specifications

Processes

Air Carbon Arc Cutting and Gouging (CAC-A)
Stick (SMAW)
TIG DC (GTAW-DC)

Technologies

GFCI

General Specifications

Title Big Blue® 450 Duo CST™
Applications Fabrication
Field Welding
Industries Construction & Fabrication
Pipe
Amperage 5 A - 450 A
Weldable Metals Stainless Steel
Steel
Rated Carbon Diameter 3/16 in (4.8 mm)
Current Type DC
Max Open Circuit Voltage 77 VDC
Portability Lift Eye (Standard)
Trailer (Optional)
Cold Weather Starting Aids Glow Plugs
Engine Brand Mitsubishi
Engine Compliance T4F
Engine Idle Speed 1800 RPM
Engine Weld Speed 1800 RPM
Fuel Tank Size 10 gal. (37.8 L)
Fuel Type Diesel
Horsepower 24.7 hp
Weld Output CC
Rated Output Separate (Dual Outputs) 175 A at 27 V, 100% duty cycle,Paralleled (Single Output) 350 A at 27 V, 100% duty cycle
Single Phase Auxiliary Continuous Power 8900 W
Single Phase Auxiliary Peak Power 10500 W
Sound Rating 71 dB (96 Lwa)
Compressed Air no
Net Width 58 in
Net Height 34 in
Net Length 28 in
Net Weight 1064 lbs
Warranty 3 Years
Miller's True Blue Warranty

Accessories

Big Blue® 400 Pro/400 PipePro®/450 Duo CST Protective Cover

Cover fits Big Blue® 400 Pro, Big Blue 400 PipePro®, and Big Blue 450 Duo CST current models.
Highway Mid Frame Trailer

For Bobcats, Trailblazers, and Big Blue products under 25 horsepower. A highway trailer with welded steel tubing frame, heavy-duty axle with roller bearing hubs and leaf-spring suspension. Includes jack stand, 2-inch (50 mm) ball hitch, fenders and lights.
Wireless Hand Control

Save your business time and money and improve workspace safety and efficiency with wireless hand controls. With fewer cables to manage, wireless hand controls offer unmatched flexibility in your operation while increasing productivity.
Wireless Remote Foot Control 301580
Wireless Foot Control

Save your business time and money and improve workspace safety and efficiency with wireless foot controls. With fewer cables to manage, wireless foot controls offer unmatched flexibility in your operation and give you ultimate control of your amperage.

Consumables

KVA Plug
Bobcat™ / Trailblazer® / Big Blue® Full Single-Phase Full KVA Plug Kit

Ability to wire for 120 or 240 VAC loads. For use with Bobcat™ / Trailblazer® / Big Blue® (except 400 and 500 CC).

Resources

Videos

Miller Big Blue Engine Driven Welder Series Pre-Start Checks
Before starting your Big Blue® engine-driven welder, make sure you check your fuel, oil, and coolant levels.
Miller Big Blue Engine Driven Welder Series Front Panel Overview
Learn more about the front panel layout and features of your Big Blue® engine-driven welder.
Miller Big Blue Engine Driven Welder Series Wireless Interface Control Overview
Miller® Big Blue® Engine-Driven Welder Series: Wireless Interface Control (WIC) Overview

Question & Answers