WP-125M - Weldcraft W-125M Micro TIG Torch Body, Water-Cooled, 125A

Precision Water-Cooled Micro TIG Torch Body

The Weldcraft W-125M (formerly known as the WP-125M) is a specialized water-cooled TIG torch body designed for high-precision welding applications where access is severely limited. Part of the renowned Weldcraft Micro Series, this torch body is engineered to provide consistent performance in intricate fabrication environments, such as aerospace, automotive repair, and artistic metalwork. Unlike standard TIG torches, the W-125M features a pencil-style rigid body that accepts a variety of interchangeable chucks and nozzles, allowing the operator to adapt the torch angle to the specific requirements of the joint without changing the entire torch assembly.

One of the defining technical characteristics of the W-125M is its efficient water-cooling system. Despite its diminutive size, the torch is rated for 125 Amps DCSP (Direct Current Straight Polarity) at a 100% duty cycle. This continuous duty rating is critical for automated or high-volume manual applications where equipment overheating can lead to downtime or consumable failure. For applications requiring even higher heat input, the torch body is compatible with quartz nozzles and 3/32-inch chucks, which can elevate the operating capacity to 160 Amps DCSP. This scalability makes the W-125M a versatile tool in a professional welding inventory.

The physical profile of the W-125M is engineered for extreme accessibility. With the standard low-profile nozzle installed, the torch can enter holes or pipe openings as small as 5/8-inch (approximately 15.8 mm) in diameter. This capability is essential for internal bore welding, tube-to-tubesheet applications, and complex manifold fabrication. The torch body utilizes standard industry connections for water and power, ensuring compatibility with existing Miller and Weldcraft cooling systems. By separating the torch body from the head assembly, Weldcraft allows users to maintain a single power source connection while swapping out front-end consumables to achieve 45-degree, 90-degree, or 180-degree angles.

Durability is maintained through high-quality conductive materials and high-temperature insulation, ensuring that the torch withstands the thermal stresses of TIG welding. The W-125M represents a critical solution for MRO (Maintenance, Repair, and Operations) professionals who encounter non-standard welding geometries that preclude the use of conventional 17, 18, or 26 series torches.