Miller Electric

News Releases

Home » About Miller » News Releases » 2010 Archives

High Res Media Images

Media Contact

Insight Marketing
Bill Elverman:


Let the latest news releases come to you! Subscribe to the News Release RSS Feed

What is RSS?

Big Blue® 350 PipePro Lowers RPM and Fuel Use, Offers Superior Arc for Transmission Pipeline Welding

Miller’s Big Blue 350 PipePro welder generator improves arc quality (no Stick arc flaring, enhanced MIG and Flux Cored controls) and is designed to withstand the heat, dirt, moisture, wind and terrain found on the right-of-way.

Miller's Big Blue 350 PipePro lowers RPM, reduces fuel use and arms welders with one of the strongest, most consistent arcs in the pipeline industry. Miller’s Big Blue 350 PipePro comes with an optional stainless steel cover for corrosive conditions.

Highlights/Key Facts

  • Infinite Arc Control allows arc characteristics to be changed for specific applications in Stick, MIG and Flux Cored welding.
  • Strong MIG and Flux Cored performance (350 amps at 100 percent duty cycle) as transmission pipeline industry converts to high-strength steels.
  • Mitsubishi 24.4 HP diesel engine lowers RPM to 1,850 (compared to 3,600), reducing fuel consumption (up to 50 percent) and noise.
  • LINE-X®-coated top cover for workbench-tough durability and a unique custom look.
  • Optional stainless steel package provides exterior protection for corrosive environment.


APPLETON, Wis., Sept. 2, 2010Miller Electric Mfg. Co. today introduces the Big Blue 350 PipePro diesel engine-driven welder/AC generator. The Big Blue 350 PipePro, purpose-built for transmission pipeline welding, provides 20 to 400 amps for both DC Stick (325 amps at 100 percent duty cycle) and DC TIG welding, 14 to 40 volts for MIG and Flux Cored welding (350 amps at 100 percent duty cycle) and 12,000 watt peak/10,000 watts continuous auxiliary generator power for running tools on site. Built for the harsh elements encountered in pipeline welding, the machine is also designed for structural steel, construction, fabrication and MRO applications.

The Big Blue 350 PipePro features Infinite Arc Control that allows arc characteristics to be tailored to specific applications in Stick, MIG and Flux Cored welding. Overall arc quality is improved, Stick flaring issues are eliminated, and MIG/Flux Cored controls have been enhanced and simplified to optimize the machine for wire welding. This is critical as many transmission pipelines are transitioning to high-strength steels where Flux Cored welding provides optimal performance.

Miller’s “Vault”—two halves of aluminum casing sealed together—protect the machine’s circuit board from dirt, moisture and heat to ensure consistent operation, including unwavering arc consistency and generator power. Its 24.4 HP Mitsubishi engine lowers RPM to 1,850 (compared to 3,600 RPM) and reduces noise and lowers fuel use by as much as 50 percent compared to other units.

The machine is available in an optional stainless steel package to withstand corrosive elements in harsh environments, and all models come standard with a LINE-X®-coated top cover for added durability and reliability. It’s smaller than previous models (56-in. depth) to optimize truck space. The machine meets all Tier 4i requirements for 2013 and is designed to operate for more than 10,000 hours before the first basic overhaul.


Big Blue 350 PipePro Product Page
Big Blue 350 PipePro Spec Sheet
Miller’s Home Page

Industry Quotes

“We’ve worked extensively with Miller on the development of this. It’s a strong machine that has good arc characteristics. You get the exact same amperage out of it every time you use it as opposed to a DC generator that varies with temperature. They can count on it being the same weld characteristics every time they strike an arc.”
—Farron Hollabaugh, director of training, Pipeline Local Union 798

“The Big Blue 350 PipePro makes my job easier every day. It runs a 3/16-in. electrode downhill smoother and keeps it lit better than any machine I’ve used.”
—Jerry Morley, Gas Fields Specialists Inc., Plumbers and Steamfitters 267

“The machine is carried over rough terrain. It’s exposed to the elements, whether it’s cold, extreme heat, rain, or snow. It has to be a strong machine to withstand that and to still work day-in and day-out. It’s the welder’s lifeline. They have to have reliable equipment. Miller is state-of-the-art in that aspect.”
—Farron Hollabaugh, director of training, Pipeline Local Union 798

Additional Information

Built to Last

The Big Blue 350 PipePro’s rated outputs are tested and verified at 104 degrees Fahrenheit. Miller’s industrial engine drives are subjected to airborne dust and sand, humidity, corrosion, temperature extremes, shaking, vibration and continuous use as part of the rigorous testing process to ensure optimal performance in all conditions. Additional features include an engine temperature gauge, digital preset weld meters, output contactor control, automatic idle and Miller’s Auto Remote Sense (ARS) that detects if a remote control is plugged into the 14-pin receptacle and eliminates confusion of a remote/panel switch.