125N45Q - Miller Weldcraft 125N45Q Quartz TIG Nozzle 45° for MT-125

Precision Quartz Nozzle for Micro TIG Applications

The Weldcraft 125N45Q is a specialized 45-degree quartz nozzle designed specifically for the MT-125 Micro TIG torch series. In the demanding field of precision welding, visibility and access are paramount. This nozzle addresses both challenges simultaneously through its unique material composition and geometric design. Manufactured from high-purity quartz, the nozzle offers exceptional thermal shock resistance, capable of withstanding the rapid temperature changes inherent in TIG welding without cracking or degrading.

One of the standout technical benefits of this nozzle is its transparency. Unlike standard alumina ceramic cups, the quartz material allows the welder to see through the nozzle itself. This is critical in micro-welding applications where the tungsten electrode is often positioned deep inside a cavity or behind a lip. By maintaining a line of sight to the arc and the weld puddle through the nozzle wall, operators can maintain tighter control over arc length and travel speed, resulting in higher quality welds with fewer defects.

The 45-degree bend is engineered to extend the reach of the MT-125 torch into difficult-to-access areas. Standard straight nozzles often fail to provide the necessary angle of attack when welding inside bores, around corners, or in complex tool and die assemblies. The 125N45Q curves the gas flow and the tungsten path, allowing the torch body to remain in a comfortable position while the arc is directed precisely where it is needed. This ergonomic advantage reduces operator fatigue and increases the feasibility of complex repair jobs.

As a genuine Weldcraft component, this nozzle ensures a perfect fit with the MT-125 torch body, preventing gas leakage that could lead to weld contamination. The precise internal dimensions ensure laminar gas flow even through the bend, providing adequate shielding coverage for reactive metals like titanium and stainless steel. Whether used for aerospace components, medical device manufacturing, or mold repair, the 125N45Q is an essential consumable for the professional micro TIG welder.