951000004 - Miller Syncrowave 400 TIG Runner Package with Foot Pedal

Miller Syncrowave 400 TIG Runner: Power, Efficiency, and Ease of Use

Upgrade your welding capabilities with the Miller Syncrowave 400 Complete Package, a top-tier solution for fabricators who demand productivity and lower operating costs. This machine is engineered to make TIG welding easier for operators of all skill levels while delivering the industrial power required for demanding jobs. With a rated output of 300 amps at 60% duty cycle, the Syncrowave 400 is a workhorse for precision metal fabrication, tube and pipe work, and heavy manufacturing. The transition to inverter technology in this model results in a smaller footprint and up to 33% energy savings compared to outdated transformer welding power sources.

The Syncrowave 400 is designed with the welder in mind. The user interface is simple to understand, reducing training time for new employees. Features like Pro-Set allow users to select preset controls for critical parameters like AC Balance and Pulse, ensuring optimal arc characteristics without the need for extensive trial and error. For aluminum welding, the AC Balance control adjusts oxide cleaning action, while AC Frequency control tightens the arc for better penetration and control. The machine also supports DC Pulsed TIG, which increases puddle agitation and stability while reducing heat input—critical for controlling distortion on thinner metals.

Reliability is core to the Syncrowave 400's design. It utilizes Wind Tunnel Technology™, an internal airflow system that protects electrical components and PC boards from dirt, dust, and debris, significantly improving long-term reliability. The Fan-On-Demand™ cooling system operates only when necessary, reducing noise, energy consumption, and the amount of airborne contaminants pulled through the machine. This package is a true "TIG Runner" setup, mounted on a durable running gear with a cylinder rack for mobility around the shop.

Included in this package is everything needed to start water-cooled TIG welding immediately (excluding gas and wire). You receive the Syncrowave 400 power source, the high-capacity Coolmate 3S water cooler, a heavy-duty Weldcraft W-375 torch, a wired foot pedal for precise amperage control, and all necessary cables and hoses. Whether you are upgrading from a Syncrowave 350 or setting up a new station, the Syncrowave 400 delivers the stable arc performance and modern features required by today's welding professionals.