WP-18SC - Weldcraft W-400 Super Cool Replacement Torch Body

Product Overview

The Weldcraft WP-18SC (W-400 Super Cool) TIG Torch Body is a high-performance replacement component designed for industrial welding environments requiring sustained high-amperage output. Engineered by Miller Weldcraft, this torch body is the core component of the W-400 Super Cool series, specifically developed to handle demanding applications where standard water-cooled torches may overheat or degrade.

This unit features a rigid head configuration, ensuring precise electrode alignment and durability under thermal stress. The "SC" designation stands for Super Cool, indicating an enhanced water-cooling passage design that surrounds the head and collet body more effectively than standard 18-series torches. This design allows the torch to operate at 400 Amps DC (280 Amps AC) with a 100% duty cycle, making it ideal for automated welding, heavy pipe fabrication, and thick-plate aluminum or stainless steel welding.

The WP-18SC body is constructed from heavy-duty copper alloys to maximize current transfer and thermal conductivity. It is designed to accept standard Weldcraft consumables compatible with the SC series, ensuring easy integration into existing inventory systems. As a genuine OEM part, it guarantees fitment and performance consistent with the original equipment specifications. This body does not include the handle, cables, or consumables, serving as a direct replacement for damaged or worn torch heads in existing W-400 assemblies.

Technical Specifications

The torch body utilizes a water-cooling method that requires a compatible cooler and hose setup. It is rated for use with tungsten electrodes ranging from 0.020" to 3/16" (0.5 to 4.8 mm), providing versatility across various material thicknesses. The connection points are precision-machined to prevent coolant leaks and ensure secure electrical contact.