KP4335-035S - Lincoln Electric .035" V-Groove Drive Roll Kit for Solid Wire

Precision Wire Feeding for Industrial Applications

The Lincoln Electric KP4335-035S Drive Roll Kit is an essential component for maintaining the performance and reliability of your MIG welding operations. Engineered specifically for use with .035-inch (0.9 mm) solid steel and stainless steel wires, this kit features a precision-machined V-Groove geometry. Unlike knurled rolls which bite into the wire, or U-groove rolls designed for soft aluminum, the V-Groove profile provides optimal friction on the sides of the wire. This design ensures positive traction to push the wire through the liner and contact tip without deforming its cross-sectional shape, a critical factor in preventing accelerated contact tip wear and ensuring consistent electrical conductivity.

Manufactured from high-grade hardened steel, these drive rolls are built to withstand the rigors of continuous industrial use. In heavy fabrication environments, drive rolls are subject to constant friction and mechanical stress. The KP4335-035S is heat-treated to resist grooving and wear, maintaining its dimensional accuracy over time. Consistent wire feeding is the foundation of a stable welding arc; even minor slippage or hesitation caused by worn or incorrect drive rolls can lead to burn-backs, erratic arc lengths, and weld defects. By installing the correct drive roll kit, operators ensure that the wire feed speed (WFS) set on the machine matches the actual output at the torch.

This kit is designed for compatibility with specific Lincoln Electric wire feeder models that utilize the KP4335 series configuration. Proper installation involves ensuring the rolls are seated correctly and the tension arm is adjusted to the manufacturer's specifications—tight enough to prevent slip, but not so tight as to crush the wire. For shops running .035" solid wire for automotive, general fabrication, or structural applications, the KP4335-035S offers the reliability needed to keep downtime to a minimum and weld quality at its peak.