0157123061 - ESAB #8 High Impact Gas Lens Nozzle for 17/18/26 Series Torches

Technical Specification: ESAB 0157123061 High Impact Gas Lens Cup

The ESAB 0157123061 is a premium-grade TIG welding nozzle designed for industrial applications requiring durability and precision. Classified as a size #8 cup, it features a 1/2-inch (12.7mm) bore diameter, making it an ideal choice for medium-to-heavy amperage welding where adequate shielding gas coverage is critical. This specific model is engineered as a "High Impact" nozzle, utilizing a reinforced ceramic composite that offers superior resistance to thermal shock and mechanical impact compared to standard alumina cups. This material composition ensures that the nozzle maintains its structural integrity even under the rigorous heating and cooling cycles inherent in high-duty cycle welding operations.

Designed for compatibility with the industry-standard 3-series torch platform, this cup fits ESAB Heliarc HW-17, HW-18, and HW-26 torches, as well as equivalent models from other manufacturers (often designated as WP-17, WP-18, and WP-26). It is specifically manufactured to thread onto gas lens collet bodies. The use of a gas lens system, as opposed to a standard collet body, creates a laminar flow of shielding gas. This laminar flow reduces turbulence at the nozzle exit, providing a more stable shield around the molten weld pool and tungsten electrode. This technical advantage allows the operator to extend the electrode stick-out further than with standard nozzles, facilitating access to tight joints and corners without compromising shield integrity.

The 0157123061 nozzle features precision-molded threads that ensure concentric alignment with the tungsten electrode. Proper alignment is essential for maintaining an even gas envelope and preventing atmospheric contamination of the weld zone. The high-impact ceramic material also exhibits excellent dielectric strength, preventing electrical arcing to the nozzle itself. This component is a critical consumable for fabrication shops, pipe welding operations, and aerospace manufacturing where weld quality and consumable longevity are paramount.