Tweco 1040-1603 Mig Gun 400A 15 Ft Euro-kwik

Product Description

The TWECO 1040-1603 is a Professional No. 4 Classic Series air-cooled MIG gun rated at 400 amps with a 60% duty cycle using CO2 gas. The 15-foot lead cable delivers reliable wire feedability and connects via a Euro-Kwik style rear connection. The gun accepts wire sizes from 0.035 to 0.045 inches and features a three-layer conductor tube construction consisting of a copper tube, silicon-resin glass insulator, and metal jacket. A 60-degree metal jacket conductor tube swivels a full 360 degrees around the handle, and a Mig-Kwik fully insulated connection allows quick attachment and detachment at the wire feeder. Designed for semi-automatic welding, this gun suits medium to heavy-duty fabrication environments demanding consistent, high-current performance.

The TWECO 1040-1603 is well suited for industrial fabrication shops, maintenance and repair operations, and production welding environments. Its heavy-duty, high-impact crush-resistant handle is made from a special plastic composition engineered for demanding shop conditions. The oval-shaped handle is balanced to pivot at the center, reducing grip effort and operator fatigue across extended shifts. A bottom-mounted gun hanger allows easy resting when not in use. The Euro-Kwik rear connection and Mig-Kwik front connection make this gun compatible with wire feeders that accept industry-standard MIG gun interfaces.

Key Features

• 400 A rating with 60% duty cycle at CO2 gas for heavy-duty continuous welding
• Accepts 0.035 to 0.045 inch wire; heavy-duty contact tips available for high-heat applications
• Three-layer conductor tube construction (copper tube, silicon-resin glass insulator, metal jacket) for durability and efficient current transfer
• 60-degree metal jacket conductor tube swivels 360 degrees for maneuvering in varied welding positions
• Silver-plated trigger contacts with self-cleaning action on each engagement and disengagement
• Steel spring strain relief on Cablehoz exit reduces wire feed issues; two ball-point screws secure Cablehoz and conductor tube
• Split-half handle case allows field repair without additional connectors; front-end consumables interchangeable with Tweco Spray Master series

Compatibility

Front-end consumables are interchangeable between the Tweco Professional No. Series and the Tweco Spray Master series. The Euro-Kwik rear connection and Mig-Kwik front connection are designed for industry-standard wire feeder interfaces.

Installation Notes

Installation and setup should be performed by a qualified welding technician or industrial maintenance professional. Always disconnect primary power to the wire feeder before connecting or disconnecting the MIG gun. Verify that the wire feeder output connector is compatible with the Euro-Kwik interface before completing the rear connection. Follow applicable workplace safety standards and the wire feeder manufacturer's connection guidelines during setup.

Technical Specifications

• Amperage: 400 A
• Duty Cycle: 60% at CO2 gas
• Wire Size Range: 0.035 to 0.045 inches
• Lead Length: 15 feet
• Conductor Tube Angle: 60 degrees
• Conductor Tube Rotation: 360 degrees swivel
• Rear Connection Type: Euro-Kwik
• Front Connection Type: Mig-Kwik (fully insulated)
• Cooling Method: Air-cooled
• Package Weight: 12.1 pounds
• Package Length: 23.1 inches
• Package Width: 14.5 inches
• Package Height: 3.1 inches

Standard Information

• Brand: TWECO
• Manufacturer Part Number: 1040-1603