Contact Tip [Heavy Duty] For Tweco SP3/SP4 MIG Welding Torches (25 Pack)

Built to endure the rigours of heavy-duty industrial fabrication, our Heavy Duty (HD) contact tips are fully compatible with the Tweco SP3 and SP4 torch series. These 1.3mm and 1.6mm variants are specifically engineered for high amperage applications where standard duty tips frequently soften and fail.

The HD series is manufactured from high purity, high density copper to provide a larger thermal mass, allowing the tip to dissipate heat more effectively during long duration welds. This robust construction prevents the internal bore from expanding or "key holing," ensuring a consistent electrical arc and reducing the occurrence of wire "burn back." Whether you are performing thick plate structural welding or high deposition surfacing, these HD tips offer the reliability needed for professional grade results.

Key Features

Tweco SP-Series Compatibility: Precision fit for Tweco SP3 and SP4 industrial MIG torches.

Heavy-Gauge Size Range: Available in two specialist industrial diameters:

- 1.3mm: Ideal for 1.2mm wire applications requiring extra clearance or specialist 1.3mm wire.

- 1.6mm: The heavy fabrication standard for high deposition, thick plate welding.

Heavy Duty (HD) Build: Features a thicker wall profile and enhanced copper density for superior thermal resistance.

Optimal Electrical Conductivity: High grade industrial copper ensures a low resistance path, resulting in a more stable arc and less spatter.

Precision Machined Bore: Polished internal channel ensures smooth wire delivery, protecting your wire feeder motor from unnecessary strain.

Download Product Specification Manual [SP3].

Download Product Specification Manual [SP4].