The Miller M1442 is a specialized Teflon liner designed to facilitate the smooth feeding of aluminum welding wire. Unlike steel liners, which can cause soft aluminum wires to shave, drag, or bird-nest inside the cable, this Teflon liner provides a low-friction path that protects the integrity of the wire from the feeder to the contact tip. It is specifically engineered for wire diameters ranging from .047 inches (3/64") to .062 inches (1/16"), covering the most common sizes used in industrial aluminum fabrication.
This liner is compatible with welding systems utilizing Centerfire front-end consumables. The Centerfire system is renowned for its gas coverage and ease of use, and using the correct liner is critical to maintaining that performance when switching materials. The M1442 is particularly effective in push-pull gun configurations or standard MIG guns where minimizing drag is essential for arc stability. The polymer construction is durable yet flexible, ensuring it navigates the bends of the gun cable without collapsing or pinching the wire.
Proper maintenance of your MIG gun includes replacing the liner when feeding issues arise. For aluminum applications, using a dedicated Teflon liner like the M1442 is mandatory to prevent contamination and feeding stoppages. This product is sold individually and is a direct replacement for existing Miller/Bernard setups requiring this specific bore size and material composition.
| Additional Information |
|---|
| Item:Liner |
| Wire Type:Aluminum |
| Wire Size:3/64", 1/16" |
| Brand:Miller, Bernard Style |
| Packaging Description:1 per each |
| Material:Polytetrafluoroethylene (Teflon) |
| Compatibility:Centerfire Consumable System |
| Application:Aluminum Welding |
