Skip to Main Content

105Z45 - Weldcraft 105Z45 Lava Nozzle #7 (10-Pack)

Packaging: 10 per ea
$46.25/ea

Package Price:

$462.50/10 per ea

Usually ships within 3-5 business days

SKU: MIL105Z45 Categories: ,

OVERVIEW

High-Performance TIG Consumables for Industrial Applications

The Weldcraft 105Z45 Lava Nozzle is a premium consumable designed for professional TIG welding operations requiring enhanced durability and thermal resistance. Manufactured by Miller Weldcraft, a leader in TIG torch technology, this nozzle is engineered to withstand conditions that typically compromise standard alumina oxide cups. The 105Z45 is a size #7 nozzle, featuring a 7/16-inch (approximately 11mm) orifice, which provides optimal gas coverage for medium-gauge welding applications across various materials.

The primary distinction of this nozzle lies in its material composition. "Lava" nozzles are machined from a specialized ceramic material that exhibits exceptional resistance to thermal shock. In industrial environments where welding torches are subjected to rapid heating and cooling cycles, or where high amperage is sustained for long durations, standard ceramic cups often fracture or crack. The Lava material mitigates this risk, ensuring a longer service life and maintaining consistent shielding gas flow. This specific model is compatible with the industry-standard 17, 18, and 26 series TIG torches, making it a versatile addition to any inventory of welding supplies.

Procurement of the 105Z45 in 10-packs offers operational efficiency for fabrication shops and manufacturing facilities. By reducing the frequency of consumable replacement, operators can maintain higher uptime and throughput. The nozzle's design is particularly effective in confined areas where heat is reflected back toward the torch front end; in such scenarios, the superior thermal properties of the Lava material prevent premature failure, protecting both the weld quality and the torch components.

Technical Specifications

This product adheres to strict manufacturing tolerances to ensure a secure fit on the torch body or collet body. The threaded connection is designed to seat firmly, preventing gas leakage and atmospheric contamination of the weld pool. As a genuine Weldcraft component, users are assured of consistent quality and performance that aligns with the specifications of their Miller or Weldcraft TIG torch systems.

Additional Information
Packaging Description:10 PER EA, 10-per-ea
Brand:Weldcraft
Item:nozzle-cup
Material:Lava
Size:#7 (7/16")
Torch Compatibility:17 Series, 18 Series, 26 Series
Part Number:105Z45

INCLUDED

  • 10 x Weldcraft 105Z45 Lava TIG Nozzles (#7)

APPLICATIONS

  • Confined space welding
  • High-amperage TIG welding
  • Aerospace and automotive fabrication
  • Pipe welding (root and hot passes)
  • General maintenance and repair (MRO)
  • Shipbuilding and marine repair

FAQ

Lava nozzles are made from a specialized ceramic that is machined and fired, offering superior resistance to thermal shock and cracking compared to standard Alumina oxide nozzles. They are particularly better suited for high-heat applications or confined spaces where heat is reflected back at the torch.

The 105Z45 nozzle fits standard 17, 18, and 26 series TIG torches. This includes both air-cooled (17, 26) and water-cooled (18) models from Weldcraft, Miller, and other major brands using the same form factor.

In TIG welding nozzles, the number indicates the orifice diameter in sixteenths of an inch. A #7 nozzle has a diameter of 7/16 inches (approximately 11mm).

This product (SKU 105Z45) is sold as a package of 10 nozzles.

Generally, these nozzles thread onto the standard collet body used in 17, 18, and 26 series torches. You should ensure your torch has the standard insulator installed, but no special adapter is typically required for the nozzle itself.

Yes, this is a genuine Weldcraft product, which is a brand owned by Miller Electric. Using OEM parts ensures consistent fit and performance.

Yes, Lava nozzles are durable and can be used for walking the cup, although their primary advantage is heat resistance. The surface texture is suitable for this technique on pipe welds.