WP18SC12RM - Miller Weldcraft W-400 Water-Cooled TIG Torch Kit 12.5ft

Stay Cool Under Pressure with the Weldcraft W-400 TIG Torch

When the heat is on and the amperage is cranked up, you need a torch that can handle the intensity without melting down. Enter the Miller Weldcraft W-400 Super Cool TIG Torch Kit (WP18SC12RM). Formerly known as the legendary WP-18SC, this water-cooled beast is built for welders who push the limits. Whether you are welding thick aluminum sections or heavy-wall stainless pipe, the W-400 provides the thermal capacity required to keep you welding continuously without the torch becoming too hot to handle. With a massive 400 Amp DC rating, this torch is the heavy-hitter of the handheld water-cooled world.

Engineered for Endurance
Standard torches can struggle to shed heat during high-output AC welding, leading to rapid consumable failure and uncomfortable handle temperatures. The W-400 solves this with its "Super Cool" technology. It employs a unique heavy-duty stubby collet body that does double duty: it optimizes shielding gas flow for superior weld quality and acts as a massive heat sink to pull thermal energy away from the tungsten and collet. Combined with robust copper internal components, this torch runs cooler and lasts longer, saving you money on replacement parts and keeping you in the zone.

Comfort Meets Control
Welding at 400 amps requires focus, and you can't focus if you're fighting your equipment. The W-400 features a specially designed textured handle that improves grip stability, giving you the fine motor control needed for precision TIG work. The kit includes a premium 12.5-foot braided rubber power cable. Unlike stiff plastic cables that drag against your wrist, the braided rubber is incredibly flexible and tough. It moves with you, reducing fatigue and allowing for smoother torch manipulation in tight corners or out-of-position welds.

Complete Ready-to-Weld Kit
This isn't just a bare torch body; it's a complete upgrade package. You get the W-400 head, the ergonomic handle, the high-performance braided power cable, water and gas hoses, and a long back cap. It utilizes standard 3 Series consumables (compatible with 18/26 series parts), making it easy to find tips, cups, and collets anywhere. If you are looking to upgrade your water-cooled setup for heavy fabrication, the Weldcraft W-400 is the industry standard for reliability and cooling performance.