Big Blue 400 Eco Pro welder generator is said to reduce fuel consumption by up to 25 percent in typical welding operations. The unit's size is 44 percent smaller and 41 percent lighter than other models with similar output, Miller says. It handles Stick, TIG, MIG, FCAW and CAC-A processes and provides 5,500 watts of peak power. Its Mitsubishi S4L2 diesel engine is designed to run 10,000 hours before major overhaul.
