Name: U4432G02 Teflon Wire Feed Liner (3m) | OTC Aluminum Welding Conduit
Brand: OTC DAIHEN
SKU: U4432G02

OTC Daihen Genuine Aluminum MIG Teflon Wire Feed Liner U4432G02 (3m Length)

U4432G02 is an official OEM genuine wire guide conduit liner custom-engineered by OTC Daihen for delicate aluminum MIG welding. Aluminum welding wire is soft and prone to buckling or bird-nesting at the feeder drive rolls if subjected to internal conduit drag. U4432G02 replaces conventional steel spring liners with an industrial high-purity Teflon (PTFE) inner liner. Featuring an ultra-low friction coefficient and excellent flexibility, it acts as a smooth expressway for aluminum wire. Re-equipping your torch with a genuine U4432G02 liner eliminates aluminum wire shaving, internal powder clogging, wire stuttering, and irregular arc length, ensuring silky-smooth wire delivery.

OTC Daihen Genuine Teflon Liner U4432G02 Overall View — Figure 1: Overall View of Genuine OTC 3-Meter Aluminum MIG Teflon Wire Feed Liner U4432G02

⚙️ Technical Specifications

Specification Attribute	Detailed Parameter
OEM Part Number	U4432G02
Product Type	Aluminum-Dedicated Low-Friction Wire Feed Liner / Teflon Conduit
Physical Specifications	Standard Length 3 Meters (3m)
Compatible Models	Dedicated fit for OTC Aluminum MIG Torches / Soft Aluminum Wire
Core Material	High-purity industrial Teflon (PTFE, ultra-low friction coefficient)
Quality Guarantee	100% genuine OEM consumable; jam-free & zero aluminum shaving

OTC Teflon Liner U4432G02 Brass Fitting — Figure 2: Precision Brass End Connector and Smooth Teflon Wire Entry Bore on U4432G02

🔧 On-Site Aluminum Feeding & Teflon Liner Guide (Essential Reading)

⚠️ Critical Rule: Never Feed Steel Wire Through Teflon Liners!
Teflon is ultra-smooth but softer than steel. Feeding hard carbon steel or stainless steel welding wire through a Teflon liner will score deep grooves into the polymer wall within minutes, destroying the liner. Dedicated liner separation is mandatory for aluminum welding.
Prevent Aluminum Shaving (Burr-Free Cutting): When trimming liner length, use a razor-sharp tubing cutter to make a clean, perpendicular 90-degree cut. Burrs or angled cuts shave aluminum powder off the wire surface, clogging torch necks and causing micro-shorting popping during arc strike.
Cable Bend Radius: Keep the 3-meter torch cable as straight as possible during aluminum welding. Sharp bends (<150mm radius) create internal wave-like buckling resistance that causes wire to bird-nest at the drive rolls.
Regular Air Purging: Remove wire weekly and blow dry compressed air from the feeder end toward the torch to clear residual aluminum dust.