907481 - Miller XMT 450 CC/CV Industrial Multiprocess Welder, 230/460V 3-Phase

The Professional Welder's Choice for Power and Performance

When you are out in the field or on the shop floor, you need a machine that starts easy, runs smooth, and doesn't quit. The Miller XMT 450 CC/CV is that machine. Known as one of the most popular models in the industry, it combines simplicity with raw power. Whether you are laying down heavy beads on structural steel or doing fine detail work, the arc performance is exceptionally stable. The control panel is designed with the welder in mind—simple, robust, and easy to operate even with gloves on. The process selector switch reduces setup time by eliminating complex button combinations, so you can switch between Stick, MIG, and TIG quickly and get back to welding.

Starting your welds has never been easier thanks to advanced arc control features. For Stick welding, the Adaptive Hot Start™ technology automatically increases output amperage at the start of a weld if necessary, preventing electrode sticking and eliminating inclusion defects. For TIG applications, the Lift-Arc™ start allows you to initiate the arc without high frequency, minimizing the risk of tungsten contamination and protecting sensitive electronics nearby. The infinite arc control available in Stick and Wire modes lets you fine-tune the puddle fluidity, making it easier to handle tough-to-weld materials or out-of-position joints.

Durability is built into every inch of the XMT 450. The front panel is protected by an ultra-tough, polycarbonate-blended cover that guards the controls against impact and damage. Large, dual digital meters are easy to read from a distance and can be preset, ensuring you hit your procedure specs every time. Plus, with the ability to handle 3/8-inch carbons for arc gouging, this machine is a true workhorse. It replaces legendary legacy models like the Dimension 452, bringing modern inverter efficiency and portability to the heavy-duty class. If you need a welder that works as hard as you do, the XMT 450 CC/CV is ready for the job.