Tweco 1047-1077 Mig Gun 400A 15 Ft Lincoln

Product Description

The TWECO 1047-1077 is an air-cooled MIG welding gun rated at 400 amps with a 60% duty cycle when used with CO2 shielding gas. Built for light to medium duty fabrication, this 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. The 15-foot power cable provides reliable wire feedability and terminates with a Lincoln-style rear connection. The standard 60-degree conductor tube swivels 360 degrees around the handle and can be removed and replaced without pulling the conduit. Installed by professional welders and fabricators, this gun is designed for demanding production and shop environments.

The 1047-1077 suits a wide range of applications including farm maintenance, garage repair, production fabrication, artistic metalwork, and general shop jobs. The Lincoln-style rear connection makes it a direct fit for compatible Lincoln wire feeders. The fully insulated Mig-Kwik front connection allows fast connect and disconnect at the wire feeder, reducing downtime during consumable changes. Its heavy-duty construction and field-repairable split-half handle case make it a practical choice for ongoing production use where uptime matters.

Key Features

• 400 amp rating with 60% duty cycle at CO2 gas
• Three-layer conductor tube: copper tube, silicon-resin glass insulator, and metal jacket
• 15-foot power cable with Lincoln-style rear connection
• 60-degree conductor tube swivels 360 degrees and removes without disturbing the conduit
• Fully insulated Mig-Kwik connection for quick feeder connect and disconnect
• Split-half handle case enables field repair without additional connectors
• Oval handle shape reduces operator fatigue during extended use

Compatibility

Designed for use with Lincoln-style wire feeders. Accepts 0.035 to 0.045 inch wire. Compatible front-end consumables are available in a wide selection for this gun platform.

Installation Notes

Installation and service should be performed by a qualified welding equipment technician. Disconnect and de-energize the welder and wire feeder before connecting or servicing the gun. Ensure the Lincoln-style rear connection is fully seated before initiating a weld. Follow all applicable welding safety standards and the feeder manufacturer guidelines when routing and securing the power cable.

Technical Specifications

• Amperage: 400 amps
• Duty Cycle: 60% with CO2 gas
• Wire Size Range: 0.035 to 0.045 inches
• Cable Length: 15 feet
• Cooling Type: Air-cooled
• Conductor Tube Angle: 60 degrees
• Conductor Tube Swivel: 360 degrees
• Rear Connection Style: Lincoln
• Package Length: 23.3 inches
• Package Width: 14.3 inches
• Package Height: 3.3 inches
• Weight: 12.85 pounds

Standard Information

• Brand: TWECO
• Manufacturer Part Number: 1047-1077