Tweco 1031-1642 Flux-cored Mig Gun 350 Amp Gasless

Product Description

The TWECO 1031-1642 is a 350-amp flux-cored MIG gun designed exclusively for use with gasless (self-shielded) flux-cored wire in the 0.030 to 0.035 inch diameter range. It features a one-piece impact-resistant straight handle with a repositionable trigger, a metal paddle-style trigger lever, and a micro-switch trigger design for precise start/stop wire feed control. The power cable is built for abrasion and heat resistance in demanding shop and field environments. Spare trigger leads are routed inside the cable assembly. This gun is installed and serviced by welders and weld technicians in industrial, fabrication, and maintenance applications.

The 1031-1642 is suited for heavy-duty welding in shipyards, offshore yards, steel fabrication facilities, automotive repair shops, and general industrial maintenance environments. The front-end consumables are heavy-duty rated and interchangeable with other leading flux-cored MIG guns, simplifying parts sourcing on multi-gun operations. The gun is rated at 60 percent duty cycle when used with CO2 shielding gas, making it appropriate for sustained production welding cycles.

Key Features

• 350-amp output rated at 60 percent duty cycle with CO2 gas
• Compatible with gasless flux-cored wire in 0.030 to 0.035 inch diameters
• One-piece impact-resistant straight handle with top or bottom trigger positioning
• Metal paddle-style trigger lever with micro-switch start/stop design
• Replaceable conduit and four trigger lead wires; spare leads stored inside cable
• Heavy-duty front-end consumables interchangeable with other leading flux-cored guns
• Rugged power cable with proven abrasion and heat resistance

Compatibility

Designed for use with all gasless self-shielded flux-cored wires; front-end consumables are interchangeable with other leading flux-cored MIG guns. Wire diameter range: 0.030 to 0.035 inch.

Installation Notes

Installation and service should be performed by a qualified welder or weld equipment technician. Disconnect and de-energize the welding power source before changing consumables, conduit, or trigger leads. Inspect the power cable and connections for wear or damage before each use. Follow applicable AWS, OSHA, and equipment manufacturer guidelines for MIG gun setup and operation.

Technical Specifications

• Amperage Rating: 350 amps
• Duty Cycle: 60 percent at rated amperage with CO2 gas
• Wire Diameter Range: 0.030 to 0.035 inches
• Wire Type: Gasless flux-cored (self-shielded)
• Weight: 8.75 pounds
• Length: 5 inches
• Width: 16.4 inches
• Height: 24.5 inches
• Sold As: Each

Standard Information

• Brand: TWECO
• Manufacturer Part Number: 1031-1642