Package Price:
$355.80/10 per eaUsually ships within 3-5 business days
The Weldcraft 105Z43 is a specialized TIG welding nozzle designed to address the thermal limitations of standard alumina oxide consumables. Manufactured from high-grade Lava (ceramic), this nozzle is engineered for applications involving high amperage or, more critically, confined spaces where reflective heat is a significant factor. Standard alumina nozzles are manufactured through a firing process that involves significant shrinkage; when these nozzles are subjected to intense reflected heat in a tight joint or corner, the rapid re-expansion often leads to thermal shock and catastrophic failure (cracking). Lava nozzles possess superior thermal stability and structural integrity under these specific conditions, maintaining their dimensions and durability where alumina fails.
This specific nozzle is a Size #4, indicating an exit orifice diameter of 1/4 inch (approximately 6.4mm). The smaller orifice size is ideal for reaching into restricted areas, such as pipe clusters, tight fillet welds, or internal corners, providing focused shielding gas coverage directly to the weld pool. It is designed to thread onto standard collet bodies found in the industry-standard 3-Series torch configurations. This includes the air-cooled WP-17 and WP-26 series, as well as the water-cooled WP-18 series torches. It is also compatible with equivalent models from other major manufacturers such as CK Worldwide, Lincoln Electric, and Esab.
Industrial MRO professionals and welding engineers specify Lava nozzles like the 105Z43 to reduce consumable churn rate. While the initial unit cost of Lava may be higher than standard alumina, the reduction in downtime caused by frequent nozzle breakage results in a lower total cost of ownership. This product is supplied in a package of 10, ensuring that welding stations remain operational during intensive fabrication projects. The 105Z43 is a direct replacement for the industry standard part number and requires no special adapters for use with standard 17/18/26 torch setups.
| Additional Information |
|---|
| Brand:Weldcraft |
| Item:Nozzle Cup |
| Packaging Description:10-per-ea |
| Material:Lava, Ceramic |
| Size:#4, 1/4" |
| Torch Series Compatibility:17 Series, 18 Series, 26 Series |
| Bore Diameter:6.4 mm |
