
New machine offers either independent dual-operator capabilities with up to 400 amps of welding power or the ability to combine both outputs for up to 800 amps with a single operator. Ideal for work in transmission pipeline, process pipe, construction and MRO welding applications, the Big Blue 700 Duo Pro also offers independent generator power for use of power tools and accessories on site without interacting with the welding arc.
APPLETON, Wis., - Miller Electric Mfg. Co. introduces the brand new Big Blue® 700 Duo Pro, a diesel engine-driven welder and AC generator that offers powerful, independent multi-arc welding in transmission pipeline, process pipe, construction and MRO welding applications. The machine offers two independent welding arcs up to 400 amps (no interaction between the arcs), and the ability to parallel both independent welding outputs to create an extremely powerful 800 amps of welding power for running large electrodes, stud welding and carbon arc gouging (up to 3/8-inch carbons).









