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The ESAB 21795 is a 50 Amp plasma arc cutting shield designed for automated and mechanized plasma systems, acting as a thermal and physical barrier for the front-end components of PT-19, PT-19XL, and PT-19XLS Plasmarc mechanized torches.
Features
Dual-Chamber Gas Management: Cooperates with inner gas diffuser to form a laminar dual-gas envelope focusing plasma arc gas and ejecting high-velocity shield gas.
Anti-Double Arcing Geometry: Prevents electrical cross-talk or double arcing between the copper nozzle tip and the conductive workpiece.
Piercing Protection Boundary: Shields the 0.041" nozzle orifice from dynamic blowback during initial arc immersion.
Optimized Thermal Sinking: Pulls heat into the liquid-cooled torch main block assembly to support continuous 100% duty cycle operation.
Maintenance Protocol - O-Ring Inspection: Requires lubrication of external rubber O-rings (996528 and 996527) with silicone lubricant.
Maintenance Protocol - Thread Seating: Hand-tighten shield retainer to prevent gas baffle diffuser misalignment.
Maintenance Protocol - Spatter Removal: Clean inner and outer faces with a soft brass wire brush to prevent electrical tracking.
Maintenance Protocol - Pierce Height Calibration: Maintain recommended pierce height to prevent molten metal blowback into the shield orifice.
