Xtrweld 54N18 Alumina Tig Cup Medium Gas Lens Size 4

Product Description

The XTRWELD 54N18 is a size 4 alumina TIG nozzle cup designed for use with medium gas lens setups on 17, 18, and 26 series TIG torches. The alumina ceramic construction handles the heat demands of TIG welding while providing consistent shielding gas coverage at the weld zone. At 0.25 inches in inside diameter, the cup is sized to match standard size 4 gas lens collet bodies. OEM-quality construction means this consumable meets the dimensional tolerances needed for proper gas coverage and arc stability without modification at installation.

This cup is suited for professional welders and fabricators running 17, 18, or 26 series air-cooled or water-cooled TIG torches in shop or field environments. Medium gas lens configurations are commonly used when welding stainless steel, aluminum, and other materials that require clean, laminar shielding gas flow. The size 4 form factor fits standard medium gas lens collet bodies and back caps used across a wide range of torch configurations in both light fabrication and structural welding applications.

Key Features

• Alumina ceramic construction resists high heat and electrical conductivity at the weld zone
• Marked with nozzle size 4 for quick identification in a consumables kit
• Compatible with medium gas lens collet bodies for 17, 18, and 26 series torches
• 1/4 inch inside diameter matches standard size 4 gas lens body dimensions
• OEM-quality tolerances support proper shielding gas coverage and arc stability

Compatibility

Designed for use with 17, 18, and 26 series TIG torches equipped with medium gas lens collet bodies. Compatible with all major torch brands using standard size 4 gas lens configurations.

Installation Notes

TIG torch consumable replacement should be performed with the welder powered down and the torch cool to the touch. Thread the alumina cup onto the gas lens collet body by hand until snug — do not use tools to overtighten, as alumina ceramic can crack under excess torque. Inspect the cup for chips or cracks before each use, as damaged cups compromise shielding gas coverage and weld quality.

Technical Specifications

• Nozzle Size: 4
• Inside Diameter: 0.25 inches
• Material: Alumina ceramic
• Compatible Torch Series: 17, 18, 26
• Gas Lens Type: Medium
• Weight: 0.56 pounds
• UPC: 840349227979

Standard Information

• Brand: XTRWELD
• Manufacturer Part Number: 54N18