Tweco 1047-1001 Mig Gun 400A 0.035-0.045in 12ft Air Cooled

Product Description

The TWECO 1047-1001 is an air-cooled MIG welding gun rated at 400 amps and built for light to medium duty fabrication. It accommodates wire sizes from 0.035 to 0.045 inches and delivers a 60% duty cycle when used with CO2 shielding gas. The gun features a three-layer conductor tube constructed from a copper tube, silicon-resin glass insulator, and metal jacket. A 15-foot power cable provides consistent wire feedability, and the Tweco-style rear connection keeps the setup straightforward for professional welders and maintenance technicians who need reliable, repeatable performance on the shop floor.

This MIG gun is suited for a wide range of applications including farm and garage repair, light fabrication, artistic metalworking, shop production runs, and general maintenance and repair. The oval handle design reduces operator fatigue during extended use, making it a practical choice for jobs that require sustained arc time. The standard 60-degree conductor tube swivels 360 degrees around the handle and can be removed and replaced quickly without pulling the conduit, which reduces downtime in active production environments.

Key Features

• Rated at 400 amps with 60% duty cycle using CO2 gas
• Accepts wire sizes from 0.035 to 0.045 inches
• Three-layer conductor tube: copper tube, silicon-resin glass insulator, and metal jacket
• 60-degree conductor tube swivels 360 degrees around the handle for positioning flexibility
• Fully insulated Mig-Kwik connection allows quick connect and disconnect at the wire feeder
• Oval handle shape and front and rear spring strain relief reduce operator fatigue
• Split-half handle case allows field repair without additional connectors

Compatibility

Designed for use with Tweco-style wire feeders utilizing a Tweco-style rear connection; compatible with standard front-end consumables in the Tweco product family as specified by the manufacturer.

Installation Notes

Installation and service should be performed by a qualified welding professional familiar with MIG gun setup and wire feeder configuration. Power down and de-energize the wire feeder before connecting or disconnecting the gun at the feeder. Verify that the contact tip and liner are matched to the wire diameter in use before initiating the arc. Follow applicable AWS safety standards and local workplace safety requirements when setting up welding equipment.

Technical Specifications

• Amperage: 400 amps
• Duty Cycle: 60% with CO2 gas
• Wire Size Range: 0.035 to 0.045 inches
• Cooling Method: Air-cooled
• Conductor Tube Angle: 60 degrees
• Conductor Tube Bend Radius: 3 inches
• Connection Style: Tweco-style rear connection with Mig-Kwik front connection
• Weight: 10.5 pounds

Standard Information

• Brand: TWECO
• Manufacturer Part Number: 1047-1001