907808 - Millermatic 355 Pulse MIG Welder 208-575V

Miller Millermatic 355: The Industrial Standard for Pulse MIG Welding

The Miller Millermatic 355 (907808) represents a significant leap forward in industrial MIG welding technology, replacing the legendary Millermatic 350P with a lighter, more intelligent, and more versatile inverter-based platform. Designed for fabrication, manufacturing, and heavy-duty maintenance, this machine delivers a rated output of 310 Amps at a 60% duty cycle, with a maximum amperage capability of 400 Amps. Its defining characteristic is the integrated Pulsed-MIG capability, which allows for spatter-free welding, reduced heat input, and superior control when welding thin materials or challenging metals like aluminum and stainless steel.

At the core of the Millermatic 355 is its input power flexibility. The machine is engineered to connect to any North American input power, accepting 208, 240, 460, or 575 Volts in either single-phase or three-phase configurations. This makes it an ideal solution for facilities with varying power infrastructures or for mobile rigs that may encounter different power sources in the field. The unit is also generator-compatible, capable of delivering full output when paired with a 19 kW generator, ensuring high-performance welding even in remote locations.

The user interface has been completely redesigned with a 7-inch color LCD display that simplifies machine setup. It features Miller's Auto-Set Elite technology, which provides predefined weld settings for various materials and wire diameters, ensuring optimal parameters for operators of all skill levels. For advanced users, the machine offers manual control and a Program Mode to save and recall specific settings. The Trigger Program Select feature further enhances productivity by allowing operators to switch between saved weld programs simply by tapping the gun trigger, eliminating the need to walk back to the power source.

Weighing in at just 99 lbs, the Millermatic 355 is less than half the weight of its predecessor, drastically improving portability around the shop floor. It comes equipped with a heavy-duty 4-roll wire drive system for consistent feeding and includes a 15-foot Bernard BTB 300 A MIG gun with AccuLock S consumables, ensuring premium arc performance right out of the box.