0366550886 - ESAB PSF Aluminum MIG Liner 1.2mm 3M

Optimize Your PSF Torch for Aluminum Applications

The ESAB PSF Liner Alum 1.2mm 3M (SKU: 0366550886) is a high-performance replacement component designed to maximize the efficiency of ESAB PSF MIG guns during aluminum welding operations. Aluminum wire has a lower column strength than steel, making it highly susceptible to buckling and friction-induced feeding errors. To combat this, ESAB utilizes specialized low-friction polymer materials in their aluminum liners, distinct from the steel spiral liners used for ferrous metals. This liner is essential for any fabricator looking to achieve X-ray quality welds with 1.2mm aluminum wire.

Technical Specifications & Compatibility:
This liner is rated for 1.2mm (0.045 inch) wire and measures 3 meters in length. It is directly compatible with ESAB's PSF series of air-cooled and water-cooled torches. The internal geometry of the liner is manufactured to strict tolerances to support the wire continuously, preventing the micro-buckling that leads to arc instability. The material composition is resistant to abrasion but smooth enough to prevent aluminum shavings from accumulating, a common cause of liner failure in high-volume production environments.

Maintenance and Performance:
Regular liner maintenance is a cornerstone of consistent MIG welding. Over time, even high-quality liners can accumulate dust or become kinked. For aluminum applications, we recommend changing the liner whenever you switch from steel to aluminum to prevent cross-contamination, or periodically during heavy aluminum use to maintain optimal feed characteristics. Using a dedicated liner like the ESAB 0366550886 ensures that the drive rolls transfer force effectively to the wire tip without slippage.

Why Choose Genuine ESAB Parts?
Generic liners often lack the precise fitment required for the PSF torch head and power pin connections. A loose fit can introduce gas leaks or wire misalignment. This genuine ESAB part guarantees a secure seal and proper alignment within the torch neck. Whether you are welding thin-gauge aluminum sheet or heavy structural components, this liner provides the consistent delivery required for spray transfer and pulsed MIG processes.