The Miller 255042 Head Tube Assembly is a specialized component designed to expand the operational capabilities of Miller's premium aluminum welding systems. Engineered specifically for the Pro Series line, this head tube is compatible with the Miller Spoolmatic® Pro spoolgun, the air-cooled XR™-Pistol-Pro, and the XR™-Aluma-Pro push-pull guns. This unit features a 180-degree (straight) geometry and an 8-inch length, providing distinct advantages in specific fabrication scenarios where standard curved necks may be obstructive or insufficient in reach.
This head tube is an air-cooled assembly, matching the duty cycle and performance characteristics of the air-cooled Pro series guns. The 180-degree angle effectively creates a straight extension from the gun handle, which is critical for applications requiring access to deep joints, narrow cavities, or automated setups where a linear approach is necessary. The 8-inch length offers a moderate extension that balances reach with wire feeding stability, ensuring that the aluminum wire—known for its softness and feedability challenges—transfers smoothly through the contact tip.
One of the defining features of the Miller Pro series accessories is the tool-less connection system. The 255042 tube head connects to the gun body without the need for wrenches or hex keys. It utilizes a self-seating mechanism that ensures a solid electrical and gas connection immediately upon insertion. Furthermore, the head is fully rotatable (360 degrees). This allows the operator to orient the trigger and handle in the most comfortable position relative to the weld joint, reducing wrist strain and improving travel angle control during complex welds.
Constructed to Miller's industrial standards, the tube head is built to withstand the heat and spatter associated with high-amperage MIG welding. As a genuine Miller replacement part, it ensures seamless integration with existing consumables (diffusers, nozzles, and contact tips) used on the Pro series guns. This interchangeability reduces inventory complexity and ensures that the welder can switch between different head geometries (such as 45-degree or 60-degree options) while utilizing the same front-end consumables.
| Additional Information |
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| ----- new values below ---- |
| Torch Head Angle:180 Degrees |
| Length:8 Inch |
| Cooling Method:Air Cooled |
| Connection Type:Tool-less Rotatable |
| Compatible Brand/Model:Miller Spoolmatic Pro, Miller XR-Pistol-Pro, Miller XR-Aluma-Pro |
| Brand:Miller |
| Item:Gooseneck |
| Fits Which Model:Miller XR Alum Pro, Miller Spoolmatic Pro, Miller XR Pistol Pro |
| Packaging Description:1 per each |
