0558003974 - ESAB PT-15XL 340A Oxygen Plasma Nozzle

High-Performance ESAB Plasma Consumables

The ESAB 0558003974 Nozzle is a critical component designed for the PT-15XL plasma cutting torch, specifically engineered for high-amperage applications utilizing Oxygen (O2) as the plasma gas. Rated for 340 Amps, this nozzle represents the upper echelon of heavy-duty industrial cutting capabilities, allowing fabricators to process thick mild steel plates with exceptional speed and precision. As an Original Equipment Manufacturer (OEM) part, it guarantees the strict dimensional tolerances required for mechanized cutting systems where consistency and repeatability are paramount.

In plasma cutting, the nozzle plays a vital role in constricting the plasma arc and focusing the energy density onto the workpiece. The 0558003974 features a precision-drilled orifice optimized for the fluid dynamics of Oxygen gas at 340A. Using Oxygen plasma is the industry standard for cutting mild steel because it produces an exothermic reaction with the base metal, resulting in faster travel speeds and dross-free edges compared to nitrogen or air plasma. This specific nozzle design ensures that the gas flow remains laminar, protecting the electrode and extending the overall life of the consumable stack.

Industrial environments demand reliability, and the PT-15XL system is often deployed on gantry tables or robotic cells running continuous shifts. Using genuine ESAB consumables like the 0558003974 nozzle minimizes downtime associated with premature part failure or poor cut quality. Inferior aftermarket copies often lack the precise internal geometry and high-quality copper alloys used by ESAB, leading to rapid orifice erosion, double-arcing, and potential damage to the torch head. By maintaining the correct nozzle condition, operators ensure the arc remains straight and focused, reducing the bevel angle on the cut face.

Proper maintenance of the 340A Oxygen nozzle involves regular inspection of the orifice for roundness and checking the exterior for slag buildup. At 340 Amps, the thermal load is significant; therefore, the nozzle's heat transfer properties are essential. ESAB utilizes high-conductivity copper alloys to dissipate heat effectively into the torch body and cooling fluid, preventing the nozzle from melting during piercing or long-duration cuts. This part is essential for shops prioritizing high-throughput production on heavy structural steel.