Big Blue® 400 Pro ArcReach

  • The professional welder’s choice— designed with the professional in mind, the Big Blue 400 Pro is the best for ease of use, reliability and fuel economy
  • 10,000 watts of pure generator power. Plug in an extra Miller® inverter-based power source for a second welding arc.
  • Low OCV stick (VRD), when enabled, reduces the open-circuit voltage to 30 volts when the welding power source is not in use, increasing operator safety without compromising arc starts.
  • Thermal overload protection prevents machine damage if the duty cycle is exceeded or airflow is blocked.
  • The Big Blue 400 Pro is only 71.6 decibels (96 Lwa) under a full load, allowing for easier jobsite communication.
  • Coupled with Caterpillar C1.5 Diesel Engine 21.7 HP Three-cylinder, liquid-cooled industrial diesel