54N19 - Weldcraft 54N19 #11 Short Alumina Gas Lens Cup (10-Pack)

Technical Specification: Weldcraft 54N19 Alumina Gas Lens Short Nozzle

The Weldcraft 54N19 is a specialized Alumina Gas Lens Short Nozzle designed to enhance the performance of TIG welding operations requiring precision shielding and access to restricted geometries. Manufactured from high-grade alumina ceramic, this nozzle offers superior thermal properties, including high heat resistance and thermal conductivity, which are critical for maintaining structural integrity during prolonged welding cycles at elevated amperages. The alumina composition also provides significant impact resistance, reducing the frequency of replacement due to accidental drops or thermal shock cracking.

This specific nozzle features a #11 orifice, corresponding to an 11/16-inch (approximately 17.5mm) bore diameter. It is engineered to interface seamlessly with gas lens collet bodies on 17, 18, and 26 series TIG torches. The integration with a gas lens system is paramount; unlike standard collet bodies that create turbulent gas flow, the gas lens assembly utilizes a mesh screen to laminarize the argon flow. This laminar flow, combined with the 54N19's wide bore, ensures a coherent column of shielding gas that effectively protects the weld pool from atmospheric contamination, even with increased tungsten stick-out.

The "Short" designation of the 54N19 is a critical functional attribute. By reducing the overall length of the front-end assembly, this nozzle allows the welder to manipulate the torch into tighter angles and confined joints where a standard-length nozzle would cause obstruction. This capability is essential in complex fabrication environments such as pipe welding, aerospace component repair, and intricate automotive manifold fabrication. Despite its shorter stature, the nozzle maintains the necessary thread engagement and sealing surface to prevent gas leakage at the torch head.

Supplied in a package of 10, the 54N19 ensures that industrial operations maintain a consistent inventory of consumables, minimizing downtime. The nozzle's surface finish is designed to resist spatter buildup, further prolonging its service life and ensuring consistent gas flow dynamics. It is a genuine Weldcraft component, ensuring strict adherence to dimensional tolerances and material quality standards required for professional welding applications.