Xtrweld 40015116M-HD Mig Gun 400A Tweco Front Miller Back

Product Description

The XTRWELD 40015116M-HD is a heavy-duty MIG welding gun rated at 400 amps, built for demanding production and fabrication environments. It features a 150-degree neck angle for improved torch positioning in tight or overhead weld joints. The gun accepts liners sized for 0.045-inch to 0.062-inch wire, covering a broad range of wire diameters used in structural, heavy plate, and industrial MIG applications. It ships as a complete assembly combining a Tweco-style front end with a Miller-compatible back end, making it a direct working solution for shops running Miller welding equipment with Tweco consumable preference. Licensed welding professionals and fabrication shops are the primary installers.

This MIG gun is suited for industrial and production welding applications where high amperage output is required over extended duty cycles. The Tweco-compatible front end supports commonly available heavy-duty consumables, specifically the 34CT and 24CT62 contact tip and nozzle series. The Miller-compatible back end connects directly to Miller MIG welding machines without adapters. Typical use cases include structural steel fabrication, heavy equipment repair, shipbuilding, and other high-wire-feed-speed applications where a 400-amp-rated gun is specified.

Key Features

• 400-amp output rating for high-amperage production welding
• 150-degree neck angle for access to restricted or overhead joint positions
• Liner compatibility range of 0.045 inches to 0.062 inches for heavy wire diameters
• Tweco-style front end accepts 34CT and 24CT62 heavy-duty consumables
• Miller-compatible back end connects directly to Miller MIG equipment
• Heavy-duty construction intended for continuous industrial use

Compatibility

Designed for use with Miller MIG welding machines via a Miller-compatible back end connection. Front-end consumables are compatible with Tweco heavy-duty series 34CT and 24CT62 contact tips and nozzles. Accepts wire liners in the 0.045-inch to 0.062-inch range.

Installation Notes

Installation should be performed by a qualified welding technician or electrician familiar with MIG gun assembly and machine interface requirements. Power down and disconnect the welding machine from its power source before connecting or disconnecting the gun. Verify liner size matches the wire diameter in use before operation. Inspect the contact tip, nozzle, and liner for wear at regular intervals and replace consumables according to the welding application load.

Technical Specifications

• Amperage Rating: 400A
• Neck Angle: 150 degrees
• Liner Wire Range: 0.045 inches to 0.062 inches
• Front End Style: Tweco
• Back End Style: Miller
• Compatible Consumables: 34CT, 24CT62 (Heavy Duty)
• Unit of Measure: Each
• Minimum Order Quantity: 1

Standard Information

• Brand: XTRWELD
• Manufacturer Part Number: 40015116M-HD