Q4015AE4VMA - Bernard Q-Gun 400A MIG Torch, 15ft, Miller Plug, 1/16 Wire Setup

Industrial Grade 400 Amp MIG Gun for Miller Feeders

The Bernard Q-Gun Q4015AE4VMA is a premium air-cooled MIG welding gun designed to meet the rigorous demands of heavy industrial manufacturing and fabrication. Rated at 400 Amps at 100% duty cycle (using CO2 gas), this gun is engineered to deliver consistent performance in high-heat, high-volume welding environments. The unit comes equipped with a 15-foot cable assembly, providing operators with the necessary reach to navigate around large workpieces and fixtures without compromising wire feedability.

This specific model is terminated with a Miller-style power pin, ensuring seamless compatibility with a wide range of Miller wire feeders and integrated power sources. It is pre-configured from the factory to run 1/16-inch (1.6mm) welding wire, making it an ideal choice for structural steel applications, heavy equipment manufacturing, and flux-cored arc welding (FCAW) processes that utilize larger diameter wires. The internal liner and contact tip are matched to this wire size to ensure immediate readiness out of the box.

A key advantage of the Q-Gun platform is the integration of the Centerfire consumable system. Unlike traditional threaded tips, the Centerfire system uses a "drop-in" tip design that is locked in place by the nozzle. This design creates a fixed tip recess for consistent stick-out and optimal gas coverage, reducing the risk of porosity. Furthermore, the large surface area of the Centerfire base improves electrical conductivity and heat dissipation, significantly extending consumable life compared to standard tapered tips. The Q4015AE4VMA represents a robust, maintenance-friendly solution for facilities seeking to maximize arc-on time and minimize troubleshooting.

Maintenance personnel will appreciate the modular design of the Q-Gun. The neck, handle, and cable assembly are designed to be easily serviced or replaced individually, reducing the total cost of ownership over the life of the product. The jump liner feature (common in Q-Guns) allows for the replacement of only the neck portion of the liner—the area most prone to wear—without discarding the entire cable liner, further enhancing cost-efficiency.