G900-2 - Miller W-125 90-Degree Micro TIG Torch Head

Miller G900-2 90-Degree Torch Head for W-125 Series

The Miller G900-2 is a specialized replacement torch head designed specifically for the Miller Weldcraft W-125 (formerly known as the WP-125) Micro TIG torch system. This component is critical for operators who utilize the W-125 for precision welding applications requiring access to confined or difficult-to-reach areas. The G900-2 features a 90-degree angle, which provides a perpendicular orientation to the torch handle, allowing the tungsten electrode to address the workpiece from a side angle. This configuration is essential for internal bore welding, pipe fitting in tight clusters, and intricate tool and die repair work.

Constructed from high-grade copper and brass alloys, the G900-2 is engineered to withstand the thermal stresses associated with TIG welding while maintaining excellent electrical conductivity. As part of the water-cooled W-125 system, this head is capable of handling amperages up to 125 A DC at a 100% duty cycle. The efficient water cooling ensures that the head remains cool to the touch even during prolonged welding sessions, protecting both the consumables and the operator. The interchangeable nature of the W-125 series allows this head to be swapped out quickly with 45-degree or 180-degree variants, making the torch system highly adaptable to changing job requirements.

Installation of the G900-2 is straightforward, threading directly onto the W-125 torch body. It requires compatible chucks and nozzles designed for the 90-degree configuration (often specific to the angle due to clearance). This genuine Miller part ensures perfect fitment and seal integrity, preventing coolant leaks and ensuring consistent gas coverage. For industrial MRO environments, maintaining a stock of interchangeable heads like the G900-2 extends the utility of existing Micro TIG setups, reducing the need for multiple dedicated torches.

Key Technical Specifications:

• Part Number: G900-2
• Angle: 90 Degrees
• System Compatibility: W-125 / WP-125 Micro TIG
• Cooling: Water-Cooled
• Amperage Rating: 125 A DC / 80 A AC