KP2018-5B1 - Lincoln Electric #4 Alumina Gas Lens Cup (1/4 Inch)

Premium TIG Welding Performance with Lincoln Electric Consumables

When precision and weld quality are paramount, the Lincoln Electric Alumina Gas Lens Nozzle No 4 (KP2018-5B1) is an essential component for your TIG welding setup. Designed to work seamlessly with gas lens collet bodies, this nozzle helps transform turbulent shielding gas into a smooth, laminar flow. This improvement in gas coverage is critical for preventing atmospheric contamination, ensuring that your welds remain clean, strong, and free of defects. Whether you are working in a professional fabrication shop or a home garage, using genuine Lincoln Electric parts guarantees fitment and performance.

The nozzle is constructed from high-quality alumina ceramic, a material chosen for its excellent resistance to thermal shock and high temperatures. In TIG welding, the proximity of the nozzle to the arc generates intense heat; inferior materials can crack or degrade rapidly. The KP2018-5B1 is built to withstand these rigorous conditions, providing a long service life even during extended welding sessions. Its No. 4 size, featuring a 1/4-inch (6.4 mm) orifice, is ideal for applications requiring focused gas coverage in tighter spaces or for finer detail work.

At Josef Gas, we understand that having the right consumables on hand can make or break a project. This nozzle is compatible with industry-standard 9 and 20 series torches, including the Lincoln PTA-9, PTA-20, and PTW-20 models. By upgrading to a gas lens setup with this alumina cup, welders can often extend their tungsten electrode further out from the nozzle. This increased stick-out improves visibility of the weld puddle and allows for better access into corners and fillets without sacrificing gas shielding.

Invest in the reliability of Lincoln Electric products. The KP2018-5B1 offers the durability and precision required for welding stainless steel, aluminum, and other sensitive alloys. Ensure your torch is performing at its peak by replacing worn or damaged nozzles with this high-performance alumina cup.