WP-20 - Weldcraft W-250 Water-Cooled TIG Torch Body

Technical Overview of the Weldcraft WP-20 (W-250)

The Weldcraft WP-20 TIG Torch Body, also designated as the W-250 in the modern Miller/Weldcraft nomenclature, represents the pinnacle of water-cooled torch engineering for precision applications. Designed to operate at 250 amps DC (180 amps AC) at a 100% duty cycle, this torch body provides exceptional thermal management in a remarkably compact form factor. The rigid head design is engineered for automated or manual applications where consistent torch angle and electrode positioning are critical for weld quality.

Constructed from high-grade copper components, the WP-20 ensures maximum electrical conductivity and efficient heat dissipation, transferring heat away from the front end into the cooling fluid rapidly. The body is encased in high-dielectric silicone rubber, which offers superior resistance to high-frequency current leakage, ensuring operator safety and preventing arc instability. This insulation is also resistant to cracking and chipping, even under the harsh thermal cycling typical of industrial welding environments.

The WP-20 is designed to utilize the standard 20 Series (13N) consumable platform, making it compatible with a vast array of collets, collet bodies, gas lenses, and alumina nozzles available in the market. Its small physical envelope allows access to tight joints often found in aerospace, motorsports, and precision pipe fabrication, without sacrificing the amperage capability required for thicker aluminum or stainless steel sections.

Key Technical Specifications:

• Amperage Capacity: 250A DC / 180A AC
• Cooling System: Water-Cooled
• Head Configuration: Rigid (70-degree angle)
• Consumable Series: 20 Series / 13N