907757 - Miller Multimatic 220 AC/DC Multiprocess Welder

Miller Multimatic 220 AC/DC: The Ultimate Multiprocess Solution

The Miller Multimatic 220 AC/DC Multiprocess Welder (907757) represents a significant leap in portable welding technology, offering true "all-in-one" versatility for professional fabricators and serious hobbyists. Unlike standard multiprocess machines that are limited to DC output, this unit provides full AC/DC TIG capabilities, allowing for high-quality aluminum welding alongside steel and stainless steel applications. Weighing just 56 lbs, it packs industrial-grade performance into a compact form factor suitable for maintenance, repair, and light fabrication environments.

Advanced QuickTech™ and Auto-Set™ Elite

Efficiency is at the core of the Multimatic 220's design. The proprietary QuickTech™ technology automatically determines the correct polarity and switches the machine to the appropriate process when the trigger or foot control is activated. This means operators can leave their MIG gun and TIG torch connected simultaneously, transitioning between processes without manual cable swapping or menu diving. Furthermore, Auto-Set™ Elite simplifies setup by providing predefined weld settings for various materials and thicknesses, while still allowing for manual fine-tuning to meet specific procedure specifications.

Dual Voltage Versatility

Equipped with Miller's exclusive Multi-Voltage Plug (MVP™), the Multimatic 220 adapts effortlessly to available power. It connects to common 120V or 240V receptacles without the need for tools, ensuring you can weld in the shop or on the go. The machine delivers robust output on both inputs, with a max amperage of 230A on 240V for MIG welding, ensuring deep penetration on thicker materials up to 3/8 inch.

Precision TIG Control

For TIG welders, the machine offers professional-level control features often reserved for dedicated TIG power sources. This includes adjustable AC Balance (60-80%) for cleaning action control, AC Frequency (60-150 Hz) for arc width adjustment, and DC Pulse (up to 150 PPS) for heat management and arc stability. The inclusion of a high-frequency (HF) start ensures non-contact arc initiation, preventing tungsten contamination.

Included in the Package: The 907757 SKU is a complete welding package, supplied with the MDX-100 MIG gun, Weldcraft A-150 TIG torch, RFCS-14 HD foot control, and all necessary cables and gas regulators, making it ready to weld out of the box.