The Miller 255717 Head Tube Assembly is a critical replacement component designed for high-performance industrial welding applications. Engineered specifically for use with Miller's advanced push-pull aluminum welding systems, including the XR-Aluma-Pro and XR-Pistol-Pro water-cooled guns, this head tube ensures your equipment operates at peak efficiency. As a water-cooled assembly, it is constructed to manage the intense heat generated during high-amperage welding, preventing overheating and extending the lifespan of your consumables and gun liner.
This particular model features a 180-degree configuration, effectively creating a straight barrel. While standard curved necks (such as 45 or 60 degrees) are common for general fabrication, a straight 180-degree head tube is indispensable for specific applications. It allows the welder to access deep, narrow channels, weld in vertical-down positions with specific ergonomic requirements, or mount the gun in fixed automation setups where a linear approach is necessary. The 4-inch length provides a compact profile, reducing the lever arm effect on the welder's wrist and improving control during precision aluminum welding tasks.
Constructed to Miller's exacting OEM standards, the 255717 assembly guarantees a leak-proof connection with the gun body's coolant circuit. Improperly fitted or aftermarket head tubes can lead to coolant leaks, which are catastrophic in aluminum welding, potentially causing porosity and weld contamination. This assembly includes the necessary conductive elements to transfer welding current efficiently to the contact tip, ensuring stable arc starts and consistent penetration. The rotatable nature of the head tube on compatible XR guns allows operators to adjust the trigger orientation relative to the nozzle, further enhancing ergonomic comfort and accessibility.
Maintenance of the head tube is vital for consistent wire feeding. The internal geometry of this Miller assembly is machined to minimize friction on the liner, promoting smooth wire delivery—a crucial factor when feeding soft aluminum wires like 4043 or 5356. Whether replacing a damaged unit or reconfiguring your gun for a specific job, the Miller 255717 offers the reliability and performance professional fabricators demand.
| Additional Information |
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| ----- new values below ---- |
| Torch Head Angle:180 Degree |
| Cooling Method:Water-Cooled |
| Length:4 Inch |
| Part Type:Head Tube Assembly |
| Brand:Miller |
| Item:Gooseneck |
| Fits Which Model:Miller XR Aluma Pro |
| Packaging Description:1 Per Ea |
