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The ESAB 1440-1012 (44N11615) is a non-metallic flexible conduit liner assembly manufactured under the Tweco brand. It is designed to line the internal torch cable of a Gas Metal Arc Welding (MIG) gun, providing a low-friction passage for feeding soft alloy wires. The component is specifically optimized for structural aluminum wire feed systems to prevent localized wire abrasion, friction deformation, micro-shaving contamination, and wire buckling during high-deposition applications.
Features
Anti-Birdnesting Geometry: Rigid nylon bore stabilizes wire under compression to prevent buckling at drive rolls.
Zero Trace Contamination: Non-metallic construction eliminates metallic flake shedding and moisture pickup to prevent weld porosity.
Permanent Roll-Stamping: MPN is roll-stamped onto the brass stop for permanent identification.
High Dynamic Flexibility: Maintains inner diameter during torch movement to minimize physical drag and welder fatigue.
Extended Contact Tip Longevity: Stabilizes wire feed velocity to prevent micro-arcing inside the contact tip.
Universal Connector Profile: Fits standard and specialized industrial MIG gun lines via universal adapter adaptations.
Ready-to-use: Pre-assembled with a crimped wire guide common to all brands of MIG guns.
Specifications
Manufacturer: ESAB / Tweco
Factory Part Number (MPN): 1440-1012
Liner Style Designator: 44N11615
UPC Barcode: 00608246074375
UNSPSC Code: 23271700
Harmonized Tariff System (HTS) Code: 8468.90.1000
Overall Nominal Length: 15 Feet (4.57 Meters)
Target Wire Diameter Capacity: 1/16 Inch (1.6 mm)
Minimum Amperage Rating: 300 Amperes
Maximum Amperage Limit: 450 Amperes
Liner Outer Diameter (OD): 0.184 Inches (4.67 mm)
Net Product Weight: 0.10 lbs (0.045 kg)
Main Body Material: High-Density Monofilament Nylon / Teflon
