AK4GL - Weldcraft AK4GL Gas Lens Accessory Kit for 20 Series Torches

Professional Grade Gas Lens Kit for Precision TIG Welding

The Weldcraft AK4GL Gas Lens TIG Torch Accessory Kit is an essential upgrade for professional welders utilizing 20 series, W-250, or W-280 water-cooled TIG torches. This comprehensive package is engineered to replace standard front-end torch components with high-performance gas lens technology. In precision TIG welding, the quality of the shielding gas envelope is paramount to preventing atmospheric contamination and ensuring a clean, sound weld. Standard collet bodies can sometimes create turbulent gas flow, which may draw in oxygen and nitrogen from the surrounding air, leading to porosity or oxidation. The components in the AK4GL kit solve this by utilizing a multi-layer screen mesh within the gas lens body to rectify the gas stream into a coherent, laminar column.

Implementing the gas lenses found in this kit offers distinct operational advantages. Firstly, the laminar flow allows the welder to extend the tungsten electrode significantly further past the nozzle—often up to one inch—without losing shielding coverage. This extended stick-out provides superior visibility of the weld puddle and arc, particularly when welding in deep grooves, corners, or filleted joints where nozzle access is restricted. Secondly, the efficiency of the gas coverage often permits the operator to reduce the flow rate of the shielding gas, leading to tangible cost savings over the lifespan of the consumables. The kit is curated to cover the most common diameter requirements, ensuring versatility across different gauge materials.

The AK4GL kit is a genuine Weldcraft product, ensuring that every component meets rigorous manufacturing tolerances for conductivity and heat resistance. It includes a short back cap for tight-space access, a selection of collets and gas lenses in 1/16", 3/32", and 1/8" sizes, and corresponding alumina nozzles. Furthermore, the inclusion of Ceriated tungsten electrodes adds to the kit's versatility, as Ceriated tungsten is known for its excellent arc starting capabilities at low amperages and its stability in both AC and DC welding processes. This all-in-one solution simplifies inventory management for industrial MRO operations and ensures that technicians have the matched components required for high-quality fabrication.