KP1901-3 - Tiny Twinarc 3/32 Inch Drive Roll and Guide Kit

Reliable Feeding for Tiny Twinarc: Lincoln KP1901-3 Kit

For professional welders utilizing the Tiny Twinarc system, the Lincoln Electric KP1901-3 Drive Roll, Guides, and Tips Kit is the definitive solution for managing 3/32-inch (2.4 mm) wire. The Tiny Twinarc process is a powerhouse for high-deposition welding, effectively doubling the wire fed into the puddle. However, this dual-wire setup demands absolute precision from the wire feeder. If one wire slips or feeds unevenly, the entire arc can become unstable. This kit is engineered to prevent such issues by providing a complete refresh of the drive system components, tailored specifically for the unique geometry and demands of twin wire welding.

This all-in-one kit takes the guesswork out of sourcing individual parts. Inside, you will find everything needed to overhaul the front end of your wire feeder. The package includes four heavy-duty contact tips (5/64-3/32 inch), which are the final point of contact for electrical current. Fresh tips are critical for preventing micro-arcing and burn-back. To support the wire's journey, the kit supplies two guide tubes and two wire guides, designed to resist abrasion and prevent wire shaving, which can clog liners and guns. A contact tip holder assembly is also included, ensuring the tips are perfectly aligned and securely fastened.

The drive mechanism itself is supported by two outer drive rolls and one center drive roll, plus a drive roll spacer. These components work in unison to provide positive traction on both wires simultaneously. Lincoln Electric manufactures these rolls to exacting tolerances, ensuring that the grip pressure is distributed evenly. This prevents the wire from being crushed—which can cause feeding issues downstream—while ensuring enough force is applied to push the heavy 3/32-inch wire through the cable assembly without hesitation.

Welders understand that preventative maintenance is key to consistent bead profile and penetration. Waiting for a drive roll to fail or a tip to fuse can ruin a workpiece and halt production. By installing the KP1901-3 kit, you ensure that your Tiny Twinarc setup is mechanically sound. This kit is ideal for shops transitioning to 3/32-inch wire or for those performing a major service on their equipment. Trust in genuine Lincoln Electric components to deliver the durability and performance your high-amperage applications demand.