65-2550 - Tregaskiss Style 401-6-50 Heavy Duty MIG Nozzle, 5/8" Bore, 1/8" Recess

Technical Overview of the 401-6-50 Tregaskiss Style Nozzle

The GEN401-6-50 is a high-performance replacement MIG gun nozzle designed to meet the rigorous demands of industrial welding environments. Engineered as a direct alternative to the Tregaskiss 401-6-50, this component is fully compatible with Tregaskiss Tough Gun robotic and semi-automatic MIG gun platforms. It features a standard 5/8-inch (15.9 mm) bore, which is the industry standard for a wide range of wire diameters and amperage settings, providing a balance between gas coverage and accessibility.

Constructed from a durable copper-brass alloy, this heavy-duty nozzle is built to withstand high thermal loads associated with high-duty cycle welding. The nozzle geometry includes a 1/8-inch (3.2 mm) tip recess. This recess is critical for protecting the contact tip from excessive spatter accumulation and radiant heat, thereby extending consumable life and reducing the frequency of tip changes. The recessed design also helps prevent short-circuiting against the workpiece when welding in tight corners.

The nozzle utilizes a robust insulation material to ensure electrical isolation from the gas diffuser and retaining head, preventing arc tracking and ensuring operator safety. Its slip-on fit (depending on the specific retaining head used) or coarse thread design ensures a secure connection that resists loosening during thermal cycling. This nozzle is an essential consumable for fabrication shops looking to maintain high uptime and weld quality while managing consumable costs.