Tweco 22-62 MIG Nozzle 5/8 Bore (2-Pack)

Tweco 22-62 Standard Nozzle: Precision and Durability

The Tweco 22-62 MIG Nozzle (SKU: 12201120) is a critical component for the 22 Series consumable system, widely utilized in Tweco #2 and #4 air-cooled MIG guns. This product is supplied in a package of two, providing a cost-effective solution for consumable management in high-volume welding environments. The nozzle features a standard 5/8-inch (0.625") bore orifice, which is the industry preference for medium-to-heavy duty welding applications ranging from 200 to 400 amps. The 5/8" opening ensures a broad umbrella of shielding gas, effectively protecting the molten weld pool from atmospheric contamination.

Engineered with a slip-on connection type, the 22-62 nozzle works in conjunction with the Tweco 32 nozzle insulator. This design eliminates the need for threads on the nozzle itself, preventing the common issue of seized threads due to thermal expansion and spatter accumulation. The slip-on fit allows the operator to easily adjust the nozzle position relative to the contact tip (flush, recessed, or sticking out) depending on the specific stick-out requirements of the welding procedure. This adjustability is vital for controlling arc characteristics and penetration profiles.

Material selection is paramount in the design of the 22-62. Manufactured from high-grade copper alloy, the nozzle boasts superior thermal properties compared to brass counterparts. Efficient heat transfer prevents the nozzle from overheating during long weld cycles, which significantly reduces the rate at which spatter bonds to the interior and exterior surfaces. This results in less time spent reaming or cleaning the nozzle and more time spent welding. The nozzle's wall thickness is calibrated to withstand the mechanical abuse of industrial environments while maintaining a lightweight profile to reduce welder fatigue.

Technical Specifications

• Part Number: 22-62 (1220-1120)
• Bore Diameter: 0.625" (15.9 mm)
• Outer Diameter: 0.875" (22.2 mm)
• Length: 2.25" (57.2 mm)
• Compatibility: Tweco #2, #4, and other 22 Series compatible guns.
• Insulator Requirement: Requires Part No. 32 (Stock No. 1320-1100) for proper seating.