301251 - Weldcraft W-280 (WP-280) Water-Cooled TIG Torch Body, 280A

Technical Overview of the Weldcraft W-280 Torch Body

The Weldcraft W-280 (formerly known as the WP-280) TIG Torch Body, SKU 301251, represents a significant advancement in water-cooled torch design for industrial applications. Engineered by Miller Electric under the Weldcraft brand, this torch body is designed to handle amperage loads up to 280 A while maintaining a compact profile suitable for precision manipulation. The core of its performance lies in the proprietary Super Cool™ Technology, which optimizes the internal surface area of the torch head. This design enhancement significantly increases cooling efficiency and capacity, allowing the torch to operate at high amperages for extended duty cycles without the thermal degradation common in standard torch bodies.

Material selection is critical in the W-280's construction. The torch body utilizes high-temperature silicone rubber insulation rather than traditional phenolic materials. This silicone insulation provides superior dielectric strength, effectively preventing the leakage of high-frequency (HF) voltage—a crucial factor for arc starting and stability in TIG welding. Furthermore, the resilience of silicone rubber reduces the risk of cracking or chipping under thermal cycling and mechanical stress, thereby extending the service life of the unit.

From a maintenance and connectivity standpoint, the W-280 features mechanical fittings for both gas and water connections. Unlike brazed or soldered connections which can fatigue over time, these mechanical fittings provide a secure, leak-proof seal that is easily serviceable. This design facilitates rapid hose replacement and maintenance, minimizing operational downtime. The torch body is fully compatible with standard 13N Series consumables, ensuring seamless integration into existing inventory systems and allowing operators to utilize widely available collets, collet bodies, and nozzles.

This product is the torch body only, intended as a direct replacement for existing W-280 or WP-280 systems, or for custom assembly builds requiring a robust, water-cooled foundation.