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

Technical Overview of the Weldcraft 54N19 Alumina Gas Lens Nozzle

The Weldcraft 54N19 is a specialized Alumina TIG welding nozzle designed to enhance performance in precision fabrication environments. Engineered for use with gas lens collet bodies, this nozzle fits standard 17, 18, and 26 series TIG torches. It is manufactured from high-grade alumina ceramic, a material selected for its excellent dielectric strength, high thermal conductivity, and resistance to thermal shock. These properties ensure the nozzle maintains its structural integrity even under the rapid heating and cooling cycles characteristic of industrial welding operations.

This specific model features a "short" form factor, significantly reducing the overall length of the torch front-end assembly. This design modification is critical for applications requiring access to confined spaces, such as complex pipe clusters, internal corners, or manifold assemblies. Despite its compact size, the nozzle boasts a large #11 orifice (11/16 inch), which provides a broad and stable shielding gas envelope. When paired with a gas lens, which rectifies the shielding gas into a laminar flow, this nozzle allows for extended tungsten stick-out—often exceeding one inch—without the risk of atmospheric contamination or porosity.

The 54N19 is precision-molded to ensure consistent threading and alignment with the gas lens body, preventing gas leakage that could compromise weld quality. Its smooth surface finish naturally resists the adhesion of weld spatter, reducing maintenance downtime. Supplied in a package of 10, these nozzles offer a reliable and cost-effective solution for maintaining high standards of weld quality in demanding TIG applications.