54N16 - Weldcraft 54N16 #6 Alumina Gas Lens Cup (10-Pack)

Technical Overview of the Weldcraft 54N16 Alumina Gas Lens Nozzle

The Weldcraft 54N16 is a high-performance alumina ceramic nozzle designed specifically for TIG welding applications requiring the use of a gas lens. This nozzle is a Size #6, featuring a 3/8-inch (9.5 mm) bore diameter, making it an ideal intermediate size for a wide range of amperage settings and joint configurations. It is engineered to thread directly onto standard gas lens collet bodies (such as the 45V series) used in 17, 18, and 26 series TIG torches. The use of high-grade alumina material ensures that the nozzle possesses excellent dielectric strength, high thermal conductivity, and substantial resistance to thermal shock, preventing cracking during rapid heating and cooling cycles common in industrial welding environments.

Unlike standard nozzles that fit onto standard collet bodies, the 54N16 is shaped to accommodate the larger diameter of a gas lens assembly. The internal geometry is optimized to work in conjunction with the mesh screens of the gas lens to produce a coherent, laminar column of shielding gas. This laminar flow is critical for maintaining an inert atmosphere around the weld pool, even when the tungsten electrode is extended further than usual. This capability is technically significant for operators welding in deep grooves or filleted corners where standard nozzle configurations would fail to provide adequate coverage due to turbulence.

This product is supplied in a package of 10, providing a cost-effective solution for high-volume fabrication shops. The 54N16 is compatible with all major TIG torch brands that adhere to the 3-Series (17/18/26) form factor, including Miller, Lincoln, CK Worldwide, and others. It is rated for use with both AC and DC welding processes. The alumina composition also resists the adhesion of weld spatter, although regular inspection and cleaning are recommended to maintain optimal gas flow characteristics. When selecting this nozzle, operators should ensure they have the corresponding gas lens collet body installed, as it will not thread onto a standard collet body.

Key Technical Specifications:

• Material: Alumina Ceramic (Pink)
• Orifice Size: #6 (3/8" / 9.5mm)
• Thread Type: Standard Gas Lens Thread
• Thermal Rating: High impact and heat resistance
• Compatibility: WP-17, WP-18, WP-26, and equivalent torches