WP-17-PSH - Miller A-150 Series Rigid TIG Torch Body 150A

Technical Overview of the Miller Weldcraft WP-17-PSH

The Miller Weldcraft WP-17-PSH is a premium replacement torch body designed for the A-150 (formerly WP-17) series of TIG welding torches. Engineered for Gas Tungsten Arc Welding (GTAW) applications, this component serves as the central conductive hub for the welding current, channeling it from the power cable to the tungsten electrode. The unit is rated for a welding output of 150 Amps DC and 115 Amps AC at a 60% duty cycle, making it an industry-standard choice for light-to-medium duty fabrication tasks.

Constructed from high-grade copper components, the WP-17-PSH ensures maximum electrical conductivity and efficient heat dissipation, which is critical for air-cooled systems that rely on shielding gas flow and ambient air to regulate temperature. The rigid head design offers a fixed 70-degree angle (typical for this series), providing a stable and consistent platform for the welder. Unlike flexible heads, the rigid body eliminates the risk of neck fatigue or breakage over time, making it ideal for bench work or repetitive applications where a variable angle is not required.

The torch body is encased in high-dielectric silicone rubber insulation. This heavy-duty insulation protects the operator from high-frequency voltage and prevents arc wandering or shorting against the workpiece. The WP-17-PSH is fully compatible with the extensive line of Series 17 consumables, including collets, collet bodies, gas lenses, and alumina nozzles (10N series). This cross-compatibility ensures that facilities can maintain a streamlined inventory of spare parts while utilizing this robust torch body. Installation is straightforward, featuring standard threading for connection to existing power cables and handles found in the Weldcraft A-150 family.

In summary, the WP-17-PSH represents the core reliability of the Weldcraft brand, offering a balance of amperage capacity, thermal management, and mechanical durability required for precision TIG welding operations.