Description
The Big Blue 450 Duo CST is a rugged, compact, fuel-efficient diesel welder/generator that provides 2 superior arcs in one economical package.
- Superior Stick arc performance even on the difficult-to-run electrodes like E6010.
- Adaptive Hot Start for Stick arc starts automatically increases the output amperage at the start of a weld should the start require it. Prevents the electrode from sticking and creating an inclusion.
- Lift-Arc start provides TIG arc starting without the use of high frequency.
- Remote amperage control provided through 14-pin receptacle on front of the machine. This permits use of standard remote amperage control devices.
- Mitsubishi S4L2 diesel engine. Used in industrial applications around the world, the S4L2 is designed to run 10,000 hours before major overhaul.
- Meter maintenance displays.
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Hour meter function
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Oil change interval
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High coolant temperature and low oil pressure shutdowns
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Low fuel shutdown engine shuts down before system runs out of fuel, making restarts easy.
- Quiet operation. In weld mode with 71.5 dBa at 23 ft (7 m), it up to 10 dBa quieter than competitive models, improving work site communication and safety.
- Thermal overload protection prevents machine damage if the duty cycle is exceeded or airflow is blocked.
- High efficiency. 3-phase, rotating-field generator requires less fuel and horsepower to operate.

Accessories
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Original price $221.09Current price $214.94Miller #2 Stick Cable Set 15 ft. - 195196
Miller ElectricDescriptionIncludes: 15 ft (4.6 m) No. 2 electrode cable and holder 15 ft (4.6 m) work cable and clamp. 200 Amps @ 100% duty cycle
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Original price $349.65Current price $324.18Miller #2 Stick Cable Set 50 ft. - 300836
Miller ElectricDescriptionIncludes: 50 ft (15.2 m) No. 2 electrode cable and holder 50 ft (15.2 m) work cable and clamp 200 Amps @ 100% duty cycle.
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Original price $120.38Current price $106.51Miller Wireless Remote Antenna Adapter Kit - 300749
Miller ElectricDescription Miller Wireless Remote Adapter Kit consists of mounting bracket and 30 inch control cable to improve reception when using a Miller wire...
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Original price $92.27Current price $88.15Miller 1-Phase Full KVA Plug Kit - 119172
Miller ElectricDescription Ability to wire for 120 or 240 VAC loads. For use with Bobcat™ / Trailblazer® / Big Blue® (except 400 and 500 CC).
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Original price $915.97Current price $795.00Miller 2/0 Stick Cable Set 100/50 ft. - 043952
Miller ElectricDescriptionIncludes: 2/0 100 ft. welding cable with stinger 2/0 50 ft. welding cable with ground clamp 300 Amps @ 100% duty cycle.
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Original price $617.91Current price $530.00Miller 2/0 Stick Cable Set 50 ft. - 173851
Miller ElectricDescriptionMiller 2/0 welding cable set is made from premium quality neoprene jacketed copper cable and comes complete with 50ft work cable and 50f...
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Original price $1,524.70Current price $1,413.91Miller PRHC-14 Hand Control - 195511
Miller ElectricDescriptionFor all solid-statepower sourcesafter serialnumber JK674521.Complete currentor voltage control brings 120 voltsGFCI power to work area i...
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Original price $414.34Current price $390.82Miller Protective Cover Big Blue 300, 350 PipePro/400 EcoPro - 195301
Miller ElectricDescriptionProtective cover for the Miller Big Blue 300, 350 PipePro and 400 EcoPro. Dimensions:L xWx H: 58in x 26in x 30inPlease Note: Covers that...
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Original price $310.44Current price $172.04Weldcraft A-150 Torch Package, 2 pc, 25' (7.6m), Rubber - WP-17V-25-2
WeldcraftDescription Formerly known as the WP-17 Series, the A-150 Series is comprised of an assortment of versatile and innovative air-cooled torches desi...
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Original price $213.05Current price $117.96Weldcraft A-150 Torch Pkg 2pc Valve 12.5' (3.8m) Rubber - WP-17V-12-2
WeldcraftDescription Hand-Held Air-Cooled TIG Welding Torch Diamond Grip head design (A-150 and A-150 Valve) has ergonomic contact points for thumb and fi...
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