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The ESAB 1630-1121 (Tweco 63J3) is an industrial-grade conductor tube insulator designed for Tweco Spray Master 350 and Eliminator MIG guns. It provides electrical isolation between the outer nozzle and the energized contact tip and diffuser to prevent electrical shorts and arcing during the welding process.
Features
Electrically isolates the outer nozzle from the energized contact tip and diffuser
Prevents nozzle shorting against workpieces or welding tables
High-temperature resistance to prevent melting or deforming under welding heat
Friction fit design to hold the nozzle securely in place
Maintains clearance for necessary gas flow
Direct OEM replacement part for Spray Master 350 setups
Specifications
Manufacturer: ESAB / Tweco
Part Number: 1630-1121
Model Number: 63J3
Amperage Rating: 250A - 350A
Material: High-Temperature Composite / Thermoset material
