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N-3400C - Bernard Centerfire 3/4 Inch Flush Copper Nozzle (10-Pack)

Packaging: 10 per pak
$40.41/ea $286.60/10 per pak only $28.66/eaSave 29%

In stock

SKU: BERN-3400C Categories: , ,

OVERVIEW

Bernard N-3400C Centerfire Copper Nozzle (3/4" Orifice, Flush)

The Bernard N-3400C is a premium copper nozzle designed for the renowned Centerfire consumable system. Engineered for high-performance industrial welding, this nozzle features a substantial 3/4-inch (19mm) orifice, making it ideal for high-amperage applications where robust shielding gas coverage is critical. The nozzle is constructed from high-quality solid copper, which offers excellent thermal conductivity to dissipate heat rapidly during long weld cycles, thereby extending the lifespan of the consumable and reducing downtime.

One of the defining features of the N-3400C is its "Flush" tip relationship. In this configuration, the contact tip sits flush with the end of the nozzle. This setup is widely preferred by professional welders for its versatility, allowing for a balance between gas coverage and visibility of the weld puddle. It is particularly effective in general fabrication where the operator needs to maintain a consistent stick-out while maneuvering the gun. The flush design helps prevent the contact tip from shorting against the workpiece while still keeping the arc close enough for precise control.

The Centerfire system itself is a game-changer in the welding industry, known for its threadless design. Unlike traditional nozzles that screw on and can seize due to heat and spatter, the N-3400C simply slides over the diffuser and is held securely in place by the spatter shield. This allows for tool-free changeovers in seconds, significantly improving shop productivity. This 10-pack ensures that your welding operations remain uninterrupted, providing a reliable stock of essential consumables for your Bernard BTB, Q-Gun, or TGX series MIG guns.

Key Benefits:

  • High Heat Resistance: Solid copper body withstands intense welding heat.
  • Optimal Gas Flow: Large 3/4" bore ensures ample shielding gas reaches the weld pool.
  • Easy Maintenance: Threadless design eliminates seized nozzles.
Additional Information
Brand:Bernard
Item:Nozzle
Packaging Description:10 in a pack
Series:Centerfire
Orifice Size:3/4"
Tip Relationship:Flush
Material:Copper
Component Type:MIG Gun Nozzle

INCLUDED

  • (10) Bernard N-3400C Centerfire Copper Nozzles

APPLICATIONS

  • Heavy Industrial Fabrication
  • Structural Steel Welding
  • Shipbuilding and Marine Repair
  • Heavy Equipment Manufacturing
  • High-Amperage MIG Welding

FAQ

The N-3400C is compatible with Bernard BTB, Q-Gun, S-Gun, T-Gun, and TGX series MIG guns that are equipped with the Centerfire front-end consumable system.

This nozzle has a 3/4-inch (19mm) orifice, which is a large bore size suitable for high-amperage welding applications requiring substantial gas flow.

Flush means that when the nozzle is fully seated, the end of the contact tip sits perfectly level (flush) with the end of the nozzle, offering a balance of visibility and gas coverage.

The Bernard N-3400C is made of solid copper, which provides superior heat dissipation compared to brass, making it better suited for high-heat applications.

No, the Bernard Centerfire system uses a threadless design. The nozzle slides over the diffuser/spatter shield and is held in place by friction and the internal geometry, preventing seizing.

This product is a package containing 10 individual N-3400C nozzles.

The Centerfire system typically uses a spatter shield that acts as both a gas diffuser and an insulator/holder for the nozzle. The nozzle itself does not usually require a separate loose insulator insert as it drops over the spatter shield.

CATALOGUE & SPEC SHEETS

Spec Sheet