10401859 - Tweco Spray Master V450 MIG Gun, 25ft, 1/16 Wire, Tweco Connection

Tweco Spray Master SMV425116: 450A Air-Cooled MIG Gun

The Tweco Spray Master SMV425116 (SKU: 10401859) represents the gold standard in air-cooled MIG welding guns for heavy-duty industrial applications. Engineered by ESAB under the renowned Tweco brand, this gun is built to handle high amperage loads with an 80% duty cycle at 450 Amps using CO2 shielding gas. This capability makes it an excellent choice for fabrication shops utilizing spray transfer modes or running large diameter flux-cored and solid wires. The unit is specifically configured with a liner and contact tip setup for 1/16-inch (1.6mm) welding wire.

This model features a 25-foot (7.6 meter) cable assembly, providing significant operational range. The cable is constructed with heavy-duty copper stranding to ensure efficient current transfer and minimize voltage drop over the extended length. The connection type is a standard Tweco backend, making it directly compatible with major wire feeder brands that support Tweco-style terminations. The gun utilizes Tweco's simplified consumable platform, reducing inventory complexity and downtime associated with part changes.

Thermal management is a critical feature of the Spray Master series. The conductor tube and handle are isolated to keep the operator's hand cool, even during prolonged welding at high parameters. The V-Series handle offers an ergonomic grip profile that enhances maneuverability and reduces operator fatigue. For maintenance, the gun is designed with a field-repairable philosophy; the trigger, cable connections, and gooseneck can be serviced easily, extending the service life of the tool in harsh industrial environments.

Technical Specifications

• Amperage Rating: 450 Amps (80% Duty Cycle w/ CO2)
• Cable Length: 25 Feet (7.6 Meters)
• Wire Capacity: 1/16" (1.6mm)
• Connection: Tweco Style Backend
• Cooling: Air Cooled
• Consumables: Compatible with Tweco 11, 14, and 16 Series