9-8406 - Thermal Dynamics 9-8406 70-80A Plasma Nozzle for PCH/PCM-102

Technical Specifications: Thermal Dynamics 9-8406 Air/N2 Nozzle

The Thermal Dynamics 9-8406 is a standard cutting tip designed for the ShurLok™ PCH-102 and PCM-102 plasma torches. This nozzle is critical for defining the shape and intensity of the plasma arc. With a calibrated 0.059-inch (approx. 1.5mm) orifice, it is engineered to handle current loads between 70 and 80 Amps. The geometry of the orifice ensures the plasma gas—whether compressed Air or Nitrogen—is focused into a tight, coherent stream, melting the base metal and blowing away the molten kerf efficiently.

In the PCH/PCM-102 torch assembly, the tip sits between the electrode and the shield cup. Proper alignment and orifice integrity are paramount; a blown-out or ovalized orifice will lead to beveled cuts and excessive dross. The 9-8406 is manufactured from high-grade copper alloy to withstand the intense heat of the plasma arc, though it is a consumable item that requires monitoring. It is designated as an 'Air/N2' tip, indicating its suitability for standard shop air cutting or nitrogen cutting for improved edge quality on non-ferrous metals.

Operators should verify their power source settings match the 70-80A rating of this tip. Running this tip at significantly lower amperages may result in an unstable arc, while exceeding the rating will rapidly erode the orifice. For optimal life, ensure your gas supply is clean, dry, and oil-free, as contaminants can drastically shorten the lifespan of the nozzle and the electrode behind it.