N-3414C - Bernard Centerfire Copper Nozzle 3/4" Bore 1/4" Recess

Bernard N-3414C Centerfire MIG Nozzle Overview

The Bernard N-3414C Centerfire MIG Nozzle is a premium consumable designed for heavy-duty industrial welding applications. Engineered to work seamlessly with the Bernard Centerfire system, this nozzle is compatible with BTB Semi-Automatic Air-Cooled MIG Guns, Q-Guns, S-Guns, and TGX Series guns. The N-3414C is distinguished by its substantial 3/4-inch bore diameter and a 1/4-inch tip recess, making it an excellent choice for high-amperage welding where maximum shielding gas coverage and contact tip protection are paramount.

Constructed from high-quality solid copper, the N-3414C offers exceptional thermal conductivity. This material choice allows the nozzle to dissipate heat rapidly, preventing overheating during prolonged welding arcs and extending the lifespan of the consumable. The 1/4-inch recess places the contact tip further back inside the nozzle, shielding it from the direct intensity of the arc and reducing the likelihood of burn-backs or spatter bridging. This configuration is particularly beneficial when welding at higher currents or when using spray transfer modes where radiant heat is intense.

A key feature of the Centerfire system is the relationship between the nozzle and the contact tip. The nozzle itself holds the threadless "drop-in" contact tip in place against the gas diffuser. When the N-3414C is threaded onto the D-1 gas diffuser, it automatically centers the tip, ensuring precise alignment and consistent electrical conductivity. Inside the nozzle, a built-in spatter shield protects the gas diffuser ports from clogging and helps smooth out the shielding gas flow, reducing turbulence and porosity in the weld pool. This nozzle is an essential component for fabricators seeking reliability and performance in their MIG welding operations.