08N78 - Weldcraft 08N78 Lava Nozzle #8 (1/2 Inch) for 17/18/26 Torches - 10 Pack

Technical Overview of the Weldcraft 08N78 Lava Nozzle

The Weldcraft 08N78 is a specialized TIG welding nozzle designed to address specific thermal challenges encountered in industrial welding environments. Manufactured from Lava, a natural stone material that is machined and fired, this nozzle offers distinct physical properties compared to standard high-alumina ceramic cups. The primary technical advantage of the Lava composition is its exceptional resistance to thermal shock and its ability to withstand high temperatures without fracturing. This makes the 08N78 particularly suitable for applications involving high amperage or prolonged duty cycles where the front-end consumables are subjected to intense thermal stress.

This nozzle features a #8 orifice, corresponding to a 1/2-inch (12.7mm) diameter, which provides a broad gas coverage area suitable for medium to heavy-duty welding on materials such as aluminum, stainless steel, and mild steel. The geometry of the nozzle is engineered to fit standard collet bodies and gas lens assemblies found on 17, 18, and 26 series TIG torches. This universal compatibility ensures that the 08N78 can be integrated into existing equipment setups from various manufacturers, including Miller, Lincoln, and ESAB, provided they utilize the standard 17/18/26 form factor.

In confined space welding, radiant heat is often reflected from the workpiece back onto the torch assembly. Standard alumina nozzles are prone to cracking under these conditions due to rapid thermal expansion and contraction. The Weldcraft Lava nozzle mitigates this failure mode, maintaining structural integrity even when subjected to reflected heat in tight corners or deep grooves. By reducing the frequency of nozzle failure, the 08N78 contributes to process stability and reduces the risk of shielding gas turbulence caused by chipped or cracked cup edges. This pack contains 10 genuine Weldcraft nozzles, ensuring a consistent supply for production environments requiring reliable, high-performance consumables.