49V24 - Weldcraft 49V24 Large Diameter Gas Lens Collet Body, 3/32" (2.4mm) for 27 Series Torches

Weldcraft 49V24 Gas Lens Collet Body Overview

The Weldcraft 49V24 Gas Lens Collet Body is a precision-engineered TIG welding consumable designed to optimize shielding gas performance for heavy-duty applications. Specifically manufactured for the 27 Series TIG torches, including the 27A and 27B models, this component plays a critical role in maintaining weld integrity and operational efficiency. Sized for 3/32-inch (2.4mm) tungsten electrodes, the 49V24 integrates a multi-layer mesh screen filter that rectifies the flow of shielding gas—typically Argon or Argon/Helium mixtures—transforming turbulent flow into a coherent, laminar stream.

In industrial welding environments, gas turbulence is a common cause of weld defects such as porosity and oxidation. Standard collet bodies often release gas in a chaotic pattern that can entrain atmospheric air into the weld zone, particularly when the nozzle-to-work distance increases. The 49V24 Gas Lens addresses this by smoothing the gas column, creating a stiff and stable shield around the molten puddle. This stability is paramount when working with reactive metals or high-specification alloys where even minor atmospheric contamination can lead to inspection failures.

The construction of the 49V24 reflects Miller Electric's commitment to quality under the Weldcraft brand. It is built to withstand the thermal cycles associated with high-amperage TIG welding, a characteristic necessity for the water-cooled 27 Series torches. By utilizing this gas lens, operators can achieve greater electrode stick-out. This capability is not merely a convenience but a technical advantage, allowing the arc to reach into deep grooves, fillets, and complex geometries while maintaining adequate gas coverage. The 49V24 is an essential upgrade for fabrication shops looking to enhance the precision and quality of their TIG welding processes.

Installation of the 49V24 requires compatible front-end parts, including the appropriate insulator and gas lens nozzle (cup). It serves as the core component that holds the collet and tungsten in place while managing gas distribution. For maintenance and repair operations (MRO) and production welding alike, ensuring your torch is equipped with a high-quality gas lens like the 49V24 ensures consistent performance and reduces the likelihood of rework caused by shielding issues.