21481 - ESAB SwirlJet SJ-3A Plasma Nozzle for PT-31 Torch

Precision Plasma Cutting with ESAB SwirlJet Technology

The ESAB 21481 SwirlJet SJ-3A Orifice is a critical component designed for the high-performance requirements of modern plasma cutting systems. Specifically engineered for use with the PT-31 and PT-31XL plasma torches, this OEM consumable ensures that your equipment operates within its specified parameters for arc density and gas flow. The orifice, often referred to as a nozzle in general plasma terminology, plays a pivotal role in constricting the plasma gas as it exits the torch, focusing the energy into a tight, hot stream capable of severing conductive metals with precision.

Manufactured to ESAB's exacting standards, the SJ-3A orifice features a precision-drilled bore that aligns perfectly with the electrode and swirl ring. This alignment is crucial for the SwirlJet system, which relies on the vortex movement of the gas to stabilize the arc and cool the consumable simultaneously. Using genuine ESAB parts like the 21481 helps prevent premature torch failure caused by arc wandering or double-arcing, issues common with ill-fitting aftermarket replacements. The high-quality copper alloy construction provides superior thermal conductivity, rapidly dissipating the intense heat generated during the cutting process to extend the service life of the part.

Industrial MRO procurement specialists will appreciate the reliability and consistency offered by genuine ESAB consumables. Maintaining a stock of 21481 orifices ensures minimal downtime for fabrication teams relying on PT-31 equipped machines, such as the HandyPlasma series or older PCM units. This component is essential for maintaining cut quality standards in light-to-medium duty fabrication environments.