20043003 - Arcair 1/4 x 12 DC Copperclad Pointed Gouging Carbons (50 Pack)

Technical Overview of Arcair DC Copperclad Pointed Electrodes

The Arcair 20043003 is a package of 50 high-performance DC Copperclad (CCAC) pointed gouging electrodes, engineered for the rigorous demands of industrial metal removal. These electrodes are manufactured from a precise blend of carbon and graphite, formulated to produce the most efficient arc characteristics for air carbon-arc gouging. With a diameter of 1/4 inch (6.4 mm) and a length of 12 inches (305 mm), they are the standard size for general-purpose fabrication and maintenance operations.

The defining feature of these electrodes is their controlled copper coating. This conductive outer layer serves two critical technical functions: it improves electrical conductivity, allowing for efficient energy transfer from the torch to the workpiece, and it helps maintain the electrode's structural integrity by reducing radiant heat buildup along the rod length. This results in a stable arc and uniform consumption rate, which is essential for maintaining consistent groove depth and width.

Operating optimally within an amperage range of 300 to 400 Amps on Direct Current Electrode Positive (DCEP), these pointed electrodes are designed to initiate the groove easily. The tapered point concentrates the arc force, allowing the operator to establish a melt pool rapidly before the air jet sweeps the molten metal away. This makes them particularly effective for removing weld defects, preparing U-grooves for welding joints, and removing temporary backing strips. The Arcair manufacturing process ensures that each rod is dense and free of internal voids, preventing premature breakage and ensuring a smooth, clean cut that requires minimal post-gouge grinding.