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The ITW / Miller Weldcraft 50C40 is a micro-TIG welding torch chuck designed for Gas Tungsten Arc Welding (GTAW) applications. It functions as a micro-collet to secure 0.040" tungsten electrodes and conduct electrical current within the torch head assembly. This component is specifically engineered for micro-TIG torches used in restricted-access welding environments.
Features
180° Architecture: Provides a parallel axis layout relative to the torch barrel for coaxial access to restricted joints.
Concentrated Radial Clamping: Applies uniform circumferential loading over the 0.040" tungsten shank to prevent electrode slipping.
Ultra-Compact Footprint: Reduces torch head assembly bulk for entry into restricted enclosures.
Optimized Current Transfer: Prevents internal micro-arcing between the chuck face and electrode shank.
Thermal Dissipation: Conducts heat from the tungsten tip into the torch cooling circuits.
Mechanical Resiliency: Resists thermal expansion and contraction cycles to prevent thread binding.
Arc Stability: Minimizes high-frequency arc wander by securing the electrode position.
Specifications
Manufacturer: Miller Electric Manufacturing LLC (ITW)
