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The Lincoln Electric KP4413-035S is a specialized drive roll kit designed for use with the Magnum PRO 100SG Spool Gun and compatible compact wire feeding systems. This component is critical for the proper conveyance of .035-inch (0.9 mm) solid welding wires, including mild steel and stainless steel alloys. The drive roll features a precision-machined V-Groove geometry. Unlike knurled rolls which are designed for flux-cored wires and can deform solid wire, or U-groove rolls designed for soft aluminum, the V-Groove provides 2-point traction that firmly grips the hard surface of solid wire without distorting its cross-sectional shape or shaving the copper coating.
Proper drive roll selection is paramount for preventing "birdnesting" and ensuring consistent Wire Feed Speed (WFS), which directly correlates to amperage in CV welding processes. The KP4413-035S is manufactured to tight tolerances to ensure concentricity and balance. This reduces vibration within the spool gun mechanism and promotes a smooth, laminar flow of wire through the liner and contact tip. The kit typically includes the drive roll and any necessary guide components required for the specific spool gun assembly, allowing for a complete refresh of the feeding mechanism.
Technicians and welders should inspect their drive rolls regularly for signs of wear, such as a rounded groove bottom or loss of traction. Replacing a worn roll with the KP4413-035S restores the mechanical efficiency of the feed system. This part is specifically coded for the .035" diameter; using it with smaller wires results in slippage, while larger wires will not seat correctly in the groove. Ensure your setup matches the wire diameter for optimal results.
| Additional Information |
|---|
| Brand:Lincoln Electric |
| Packaging Description:1 Per Ea |
| Wire Diameter:0.035" (0.9 mm) |
| Groove Type:V-Groove |
| Wire Material Compatibility:Solid Steel, Stainless Steel |
| Compatible Equipment:Magnum PRO 100SG Spool Gun |
| Product Type:Drive Roll Kit |
