430-428931 - Hypertherm Duramax 65 Amp Drag Cutting Nozzle (5-Pack)

Technical Overview of Hypertherm Duramax 65A Drag Tips

The Hypertherm Duramax 65A Drag Tip (SKU: 428931) is a specialized plasma cutting consumable designed for use with the Duramax and Duramax Lock series of torches. These torches are standard equipment on Powermax 65, Powermax 85, and Powermax 105 plasma cutting systems. This specific nozzle is engineered for the 65 Amp output setting, optimizing the plasma arc density and velocity for drag cutting operations. Drag cutting technology allows the operator to maintain direct contact between the shield/nozzle assembly and the workpiece, eliminating the need for a manually maintained standoff distance. This results in reduced operator fatigue and improved cut consistency.

Manufactured to tight tolerances, these tips feature a precision-drilled orifice that shapes the plasma stream for maximum energy density. The copper construction ensures efficient thermal conductivity, rapidly dissipating heat generated during the arc constriction process. This thermal management is critical for preventing premature orifice erosion and extending the service life of the consumable. The 428931 pack contains five (5) nozzles, ensuring that operators have sufficient inventory for continuous production environments.

When installed in a Duramax torch, these tips function as part of a consumable stack that typically includes an electrode, swirl ring, retaining cap, and a drag shield. The internal geometry of the tip is designed to work in concert with the swirl ring to stabilize the gas flow, centering the arc and protecting the nozzle bore from double-arcing. These tips are strictly rated for 65 Amps; operating them at significantly higher amperages may lead to rapid failure, while lower amperages may result in an unstable arc or poor cut quality.