212156 - Miller 212156 Phosphor Bronze Head Tube Liner (2-Pack) for Spoolmatic & XR Guns

Heavy-Duty Liner for Spoolmatic and XR Guns

Keep your Miller spool guns and push-pull systems operating at peak efficiency with the Miller 212156 Phosphor Bronze Head Tube Liner. This genuine Miller replacement part comes in a convenient 2-pack, ensuring you always have a spare on hand when you need it most. Designed to fit the neck (head tube) of your welding gun, this 7.3-inch liner bridges the gap between the main conduit and the contact tip, a critical area where wire friction is often highest due to the angle of the gun neck.

Why Choose Phosphor Bronze?
If you are using your Spoolmatic or XR Pistol Grip gun to weld with hard wires like mild steel or stainless steel, standard liners simply won't last. Plastic or Teflon liners are excellent for aluminum but can be quickly chewed up by the rough surface and stiffness of steel wire. The Miller 212156 is crafted from tough phosphor bronze, a material known for its low friction coefficient and high resistance to wear. This results in a much longer service life and smoother wire feeding, which directly translates to better weld quality and less downtime for liner changes.

Broad Compatibility and Versatility
This liner is engineered to be a direct fit for some of the most popular industrial guns in the industry, including the Spoolmatic 15A, Spoolmatic 30A, and the entire line of XR pistol-grip push-pull guns. It handles a broad range of wire diameters, from light .030" wire up to heavy 1/16" wire. Whether you are fabricating heavy equipment, performing automotive repairs, or working on stainless steel projects, upgrading your head tube liner to phosphor bronze is a smart investment for consistent, trouble-free wire delivery.