The ESAB PSF Liner (SKU: 0366550885) is a specialized replacement component designed for the ESAB PSF series of MIG welding guns. Engineered specifically for aluminum welding applications, this liner addresses the unique tribological requirements of feeding soft aluminum wire. Unlike steel liners which can shave aluminum wire and cause clogging, this liner utilizes a low-friction polymer composition that ensures consistent wire delivery.
This specific model is sized for 0.9mm (0.035 inch) diameter wire and measures 4.5 meters (approximately 15 feet) in length, making it suitable for standard long-reach PSF torch assemblies. The internal geometry of the liner is manufactured to tight tolerances to support the wire column effectively, preventing buckling (bird-nesting) inside the cable assembly—a common failure mode in push-only aluminum MIG systems.
Proper maintenance of the wire feed path is critical for aluminum welding. Over time, liners can accumulate aluminum oxide dust or become kinked, leading to erratic arc characteristics. Replacing the liner with this genuine ESAB part restores the original performance specifications of the torch. It is compatible with standard gas-cooled and water-cooled PSF guns configured for 4.5m cable lengths. Technicians should ensure the liner is trimmed correctly during installation to prevent gaps at the contact tip or drive roll interface.
Key Technical Specifications:
| Additional Information |
|---|
| Packaging Description:1 Per Ea |
| Product Type:MIG Gun Liner |
| Wire Diameter:0.035", 0.9mm |
| Length :15 ft, 4.5m |
| Compatible Torch Series:ESAB PSF |
