430-220975 - Hypertherm 220975 125A Nozzle for Duramax Hyamp

Technical Overview of the Hypertherm 220975 Nozzle

The Hypertherm 220975 is a specialized plasma cutting nozzle designed exclusively for the 125-amp operating range of the Powermax 125 plasma cutting system. As a critical component of the Duramax Hyamp torch assembly, this nozzle plays a pivotal role in constricting the plasma arc to generate the high-energy density required for cutting thick metal plates efficiently. The nozzle features a precision-machined orifice that shapes the plasma gas stream, directly influencing the kerf width, cut angularity, and dross formation.

Engineered from a high-conductivity copper alloy, the 220975 nozzle is designed to withstand the intense thermal loads generated during 125A cutting processes. It works in conjunction with the electrode and swirl ring to maintain a stable arc attachment point. The internal geometry is optimized to facilitate proper gas flow dynamics, which cools the nozzle during operation and protects the orifice from rapid erosion. This thermal management is essential for maintaining the structural integrity of the nozzle over its service life, preventing premature failure due to keyholing or orifice deformation.

This nozzle is compatible with both handheld and mechanized Duramax Hyamp torches. In mechanized applications, the consistency of the 220975 nozzle ensures repeatable cut quality, which is vital for automated production environments. It is designed to be used with the appropriate shield and retaining cap to ensure proper standoff distance and shield gas flow, further enhancing the cut quality and protecting the nozzle from molten spatter. Users should verify that their system is set to 125A mode when using this consumable to prevent damage to the torch or the workpiece.

Adhering to strict OEM manufacturing tolerances, Hypertherm ensures that every 220975 nozzle provides the same reliable performance. The concentricity of the orifice relative to the outer body is verified to ensure the arc remains centered, which is critical for achieving square cuts and maximizing the life of the electrode. Regular inspection of the nozzle orifice for signs of out-of-roundness or nicks is recommended as part of standard maintenance protocols.