14401135 - Tweco WeldSkill Aluminum Liner 15ft 0.035-0.045 WS44N354515

Tweco WeldSkill Aluminum Conduit Liner WS44N354515

The Tweco 1440-1135 (Part Number WS44N354515) is a specialized conduit liner designed for the Tweco WeldSkill series of MIG guns. Engineered specifically for aluminum welding applications, this liner is constructed from high-quality nylon material. Unlike steel liners used for hard wires, the nylon composition provides a low-friction path that is critical for feeding soft aluminum wires such as 4043 or 5356 alloys. This reduction in friction helps to maintain a consistent wire feed speed and prevents the common issue of wire shaving, where small particles of aluminum clog the liner and contact tip.

This particular liner is sized for a 15-foot cable assembly and is compatible with wire diameters ranging from 0.035 inches to 0.045 inches (0.9mm to 1.2mm). Proper liner selection is a key factor in successful aluminum MIG welding; using a steel liner with aluminum wire often leads to "bird-nesting" at the drive rolls or erratic arc characteristics due to drag. The WS44N354515 ensures that the wire glides smoothly from the feeder to the contact tip, enabling precise control and high-quality weld deposits.

Installation is straightforward, designed to replace the existing liner in compatible WeldSkill guns. It is an OEM replacement part, ensuring perfect fitment and reliability. Industrial maintenance professionals and fabricators rely on genuine Tweco consumables to minimize downtime and maintain the performance standards of their welding equipment.