12401855 - Tweco VNM-62F Velocity2 MIG Nozzle 5/8" Flush (2-Pack)

Technical Overview of Tweco Velocity2 VNM-62F Nozzles

The Tweco Velocity2 VNM-62F MIG Nozzle (SKU: 1240-1855) is a high-performance consumable designed for precision and durability in MIG welding applications. Part of the renowned Velocity™ platform, this nozzle is engineered to integrate seamlessly with Tweco Spray Master™ MIG guns that utilize Velocity consumables. The VNM-62F model features a 5/8-inch (16mm) bore, which provides a balanced shielding gas flow suitable for a wide range of welding parameters and joint configurations. This specific bore size is often the standard choice for general fabrication, offering adequate coverage without excessive gas waste.

One of the defining technical characteristics of the VNM series is its self-insulated construction. Unlike traditional MIG nozzles that may require a separate fiberglass or composite insulator, the Velocity2 nozzle incorporates the insulation directly into the housing. This design reduces the number of loose parts required for torch maintenance and minimizes the risk of arcing due to missing or damaged insulators. The nozzle is rated for welding outputs up to 250 Amps, making it robust enough for medium-duty industrial applications while maintaining a compact form factor.

The VNM-62F features a flush tip relationship. In this configuration, the contact tip sits flush with the end of the nozzle. This setup is widely preferred for short-circuit MIG welding and applications where the welder needs a clear view of the arc and puddle while maintaining a consistent electrical stick-out. The nozzle is designed to work exclusively with VTM series contact tips, ensuring a tight tolerance and efficient current transfer within the Velocity system. Supplied in a package of two, these nozzles ensure that operators have immediate replacements on hand to maintain productivity.

By utilizing genuine Tweco consumables, fabricators ensure compatibility and performance stability. The Velocity2 interface is designed to optimize thermal conductivity and mechanical stability, reducing the frequency of nozzle spatter buildup and extending the service life of the front-end consumables.