Name: U2372G04 Contact Tip (2.4mm) | OTC Heavy-Duty Torch Consumable
Brand: OTC DAIHEN
SKU: U2372G04

OTC Daihen Genuine Heavy-Duty Contact Tip U2372G04 (For 2.4mm Wire)

U2372G04 is an official OEM genuine heavy-duty contact tip engineered by OTC Daihen specifically for deep-penetration structural steel and automated welding applications using 2.4mm large-diameter wire. Serving as the final current transfer point delivering hundreds of amperes of welding current to the wire, this contact tip is cold-headed from high-purity chromium-zirconium copper alloy. It offers low electrical resistivity, exceptional high-temperature hardness, and a mirror-smooth drawn bore. Re-equipping your torch with an original U2372G04 tip eliminates arc wandering, premature bore enlargement, thermal softening, and wire jamming under heavy welding cycles (>400A).

OTC Daihen Genuine Contact Tip U2372G04 Front View — Figure 1: Front View of Genuine OTC 2.4mm Heavy-Duty Contact Tip U2372G04

⚙️ Technical Specifications

Specification Attribute	Detailed Parameter
OEM Part Number	U2372G04
Product Type	Heavy-Duty Welding Torch Contact Tip / Current Transfer Tip
Applicable Wire Diameter	Φ 2.4mm dedicated size (U2372G02 available for 1.2mm)
Material & Processing	Premium chromium-zirconium copper alloy + precision drawn bore
Quality Guarantee	100% genuine OEM copper consumable; wear-resistant & zero arc wander

OTC Contact Tip U2372G04 Side View — Figure 2: Precision CNC Machining and Tapered Heat-Dissipation Geometry on U2372G04

🔧 On-Site 2.4mm Wire Assembly & Contact Tip Care Guide (Essential Reading)

Prevent High-Amperage Bore Wear (Arc Deflection): Heavy 2.4mm wires operating at >400A subject contact tip bores to intense electrical and mechanical wear. When arc stability degrades and wire begins weaving or rotating at the weld pool, the bore has enlarged oval. Replace the contact tip immediately to restore centered wire guidance.
Prevent Thread Seizure (Anti-Seize Grease): Continuous high-amperage welding heat can cause contact tip threads to sinter and seize inside tip holders, resulting in snapped threads during removal. Always apply a trace amount of high-temperature conductive anti-seize paste to threads prior to installation.
Conduit Liner Matching: If wire feeding stalls after installing U2372G04, verify that the internal torch conduit liner has been upgraded to a 2.4mm-compatible heavy-duty steel liner; small liners jam thick wires.
Gentle Spatter Removal: Clean spatter from tip tips using specialized MIG pliers or chemical anti-spatter sprays. Never strike copper tips with hammers to remove slag, as impact crushes the exit bore and jams wire.