Tweco 1040-1859 Mig Gun 450A 25 Ft Air Cooled

Product Description

The TWECO 1040-1859 is a heavy-duty, air-cooled MIG gun engineered for high-amperage spray transfer welding applications. Rated at 450 amps and built on the VELOCITY2 Spray Master platform, it accepts VELOCITY2 Medium and Heavy Duty consumables. The gun ships with a 25-foot cable and features a fully rotatable conductor tube, an extended-length trigger, and a compact ergonomic handle designed to reduce operator fatigue during prolonged welding. The thick-walled, four-layer conductor tube includes an outer high-temperature silicone layer that resists radiant heat degradation during heavy duty cycle work.

This MIG gun is suited for demanding industrial environments including automotive fabrication, structural steel work, shipbuilding, offshore yard operations, and general repair and maintenance. The VELOCITY2 Spray Master series retains the original Spray Master CableHoz design, available in 250, 350, and 450 amp configurations, providing proven electrical and thermal conductivity alongside cable flexibility. It is a practical choice wherever sustained high-amperage MIG welding is required and operator comfort over long shifts matters.

Key Features

• 450-amp air-cooled rating suitable for spray transfer and heavy duty cycle applications
• 25-foot cable length with original Tweco CableHoz construction for electrical and thermal conductivity
• Fully rotatable conductor tube allows repositioning to improve access and maneuverability
• Extended-length trigger lets operators shift grip to reduce repetitive motion and radiant heat exposure
• Thick-walled four-layer conductor tube with outer high-temperature silicone layer for heat resistance
• Compatible with VELOCITY2 Medium and Heavy Duty consumables for improved welder productivity

Compatibility

Designed for use with VELOCITY2 Medium and Heavy Duty MIG consumables as part of the VELOCITY2 Spray Master series. Compatible with standard Tweco CableHoz assemblies in 250, 350, and 450 amp versions.

Installation Notes

Installation and setup should be performed by a qualified welding technician or industrial electrician familiar with MIG welding equipment. Disconnect and de-energize the welding power source before connecting or inspecting the gun cable and conductor tube. Verify that the wire feeder drive roll size matches the wire diameter capacity of up to 1/16 inch supported by this gun. Follow the welding equipment manufacturer guidelines and applicable workplace safety codes when configuring the gun for rotatable conductor tube positions.

Technical Specifications

• Amperage: 450 A
• Cooling Method: Air Cooled
• Cable Length: 25 ft
• Maximum Wire Diameter: 1/16 inch
• Package Weight: 19 pounds
• Package Width: 23.25 inches
• Package Height: 14 inches
• Package Length: 3 inches
• Sold As: Each

Standard Information

• Brand: TWECO
• Manufacturer Part Number: 1040-1859