WP-18 - Miller Weldcraft W-350 Replacement Torch Body

Heavy-Duty Performance for Professional Welders

When your daily grind involves pushing 300+ amps on thick aluminum or stainless steel, an air-cooled torch simply won't cut it. The Weldcraft W-350 (classic WP-18) TIG Torch Body is the workhorse you need for high-heat applications. Designed to keep its cool under pressure, this water-cooled body allows you to weld at up to 350 amps with a 100% duty cycle. This means you can keep the arc lit for as long as you need without stopping to let the torch cool down, significantly boosting your productivity and comfort. The rigid head design offers a familiar, solid feel that doesn't flex or wander, giving you the precision control required for critical welds.

Stay Cool and Comfortable

Heat fatigue is a real enemy in the shop. The W-350's efficient water-cooling system circulates coolant directly around the head components, pulling heat away from the nozzle and handle. This not only protects the torch from melting down but also keeps the handle temperature manageable, preventing the dreaded "hot hand" that can ruin your dexterity and focus. Whether you are welding heavy plate or running long passes on pipe, the thermal efficiency of the WP-18 style body ensures that your equipment handles the heat so you don't have to.

Versatile Consumable System

One of the best features of the W-350 torch body is its versatility with consumables. If you already have a stash of parts for a WP-17 or WP-26 air-cooled torch, you are in luck. The front-end consumables—cups, collets, and gas lenses—are completely interchangeable. This makes upgrading to a water-cooled setup or replacing a damaged body much easier on your wallet and your toolbox organization. You won't need to buy a completely new set of consumables just to get the benefits of a water-cooled torch body.

Built to Last

Weldcraft is synonymous with TIG welding quality for a reason. This replacement body is built with rugged materials designed to survive the harsh environment of a welding shop. The high-dielectric silicone rubber coating resists cuts, abrasion, and high-frequency leakage, ensuring that the power goes into the weld, not into your hand. If your current WP-18 body has developed a leak or a crack, swapping it out for this genuine Weldcraft W-350 unit will restore your machine's performance instantly, getting you back under the hood and laying dimes in no time.