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The ESAB 21-1052 is a 70 Amp precision plasma arc-constricting nozzle tip engineered for heavy-duty mechanized cutting of mild steel. Manufactured under the Thermal Dynamics automated cutting division, this component is designed for high-precision tolerances and is compatible with liquid-cooled machine torches and automated plasma systems.
Features
Precision Arc Constriction: Internal throat geometry forces plasma gas into a high-velocity jet to minimize kerf width.
Liquid-Cooled Thermal Shielding: Direct isolation from ambient heat traps via the XT-300 torch body to extend consumable life.
Oxidized Passivation Layer: Interior arc-constricting bore resists secondary arcing and limits pilot arc erosion.
Metallurgical Stability: Chromium and Zirconium additions prevent mechanical deformation of the orifice during extended CNC operations.
Dross-Free Secondary Arc Prevention: Outer profile prevents molten metal blowback from attaching to the tip during pierce cycles.
Taper-Lock Seating: Ensures mechanical concentricity and eliminates gas turbulence within the torch assembly.
High-Conductivity Matrix: Pure copper base minimizes electrical resistance and maximizes energy transfer.
Specifications
Manufacturer Part Number: 21-1052
Alternative SKU: TDC21-1052, 365-21-1052
Current Rating: 70 Amperes (Continuous)
Duty Cycle: 100% Continuous Duty
Target Material: Carbon Steel / Mild Steel (MS)
Primary Plasma Gas: Pure Oxygen (O2)
Secondary Shield Gas: Compressed Air / Nitrogen
Process Variant: Precision Automated Cutting
Cooling Method: Indirect Liquid Immersion via XT-300 cooling jacket
Material Composition: Chromium-Zirconium-Copper (CuCrZr) alloy matrix
