10501088 - Tweco Classic No. 5 MIG Gun 500A 10ft Cable Tweco Connection

Heavy-Duty Industrial MIG Welding Gun

The Tweco Classic No. 5 MIG Gun is a legendary tool in the welding industry, renowned for its rugged durability and high-amperage performance. Designed for professional welders who demand reliability, this air-cooled gun is rated at 500 Amps at 60% duty cycle when using CO2 gas, making it an ideal choice for heavy fabrication, structural steel, and industrial manufacturing environments.

This specific model (SKU: 1050-1088) comes equipped with a 10-foot cable, providing ample reach for bench work and standard welding stations without the clutter of excessive cable length. The gun features a standard Tweco-style rear connection, ensuring compatibility with a vast range of wire feeders and power sources commonly found in Canadian workshops. Its air-cooled design eliminates the need for water coolers, simplifying setup while maintaining robust thermal management during extended welding arcs.

At Josef Gas, we understand that downtime is costly. The Tweco Classic No. 5 is designed with field maintenance in mind. The consumables—including contact tips, nozzles, and diffusers—are widely available and easy to replace. The handle is constructed from high-impact materials to withstand drops and rough handling, while the metal jacketed conductor tube ensures longevity. Whether you are welding thick plate or running flux-cored wires, the Tweco No. 5 delivers consistent wire feeding and superior electrical conductivity.

Key Benefits for Industrial Users

• High Output: Capable of handling 500A, suitable for large diameter wires up to 3/32".


• Durability: Built to withstand harsh industrial environments with heavy-duty strain reliefs.


• Compatibility: Uses standard Tweco consumables, reducing inventory complexity.