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47123000 - Arcair 3/4" x 12" DC Copperclad Pointed Gouging Electrodes

Packaging: pack of 1
$107.67/EA $69.60/pack of 1 only $69.60/EASave 35%

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OVERVIEW

Premium Performance: Arcair 47-123-000 DC Gouging Electrodes

For professional welders and fabricators requiring maximum efficiency in metal removal, the Arcair 47-123-000 3/4" x 12" DC Copperclad Pointed Gouging Electrodes stand as the industry benchmark. Air Carbon Arc Gouging (CAC-A) is a process that relies heavily on the quality of the electrode to maintain a stable arc and produce clean, uniform grooves. Arcair, the pioneer of this process, manufactures these rods to exacting standards, ensuring that every electrode performs consistently under the intense heat and current of heavy-duty gouging.

The 3/4-inch diameter places this electrode in the heavy-duty category, requiring substantial amperage (typically in the range of 800 to 1200 amps) and high-capacity torches. This size is perfect for foundry work, such as washing pads and removing risers, as well as for heavy structural repairs where large volumes of weld metal or base material must be excised rapidly. The pointed tip design facilitates easy arc starting, allowing the operator to establish the puddle immediately and begin the gouging action without delay.

Superior Conductivity and Arc Stability

The performance of the 47-123-000 rod is enhanced by its high-purity copper coating. This coating serves multiple critical functions: it maximizes electrical conductivity, minimizes resistance heating within the rod itself, and helps maintain the rod's structural integrity during the gouging process. The result is a stable, focused arc that melts the base metal efficiently while the air stream clears the molten material. This leads to cleaner grooves with less slag residue, reducing the amount of secondary grinding or cleanup required before subsequent welding.

Optimized for DCEP Applications

These electrodes are designed for use with Direct Current Electrode Positive (DCEP) polarity. This configuration concentrates the heat at the workpiece, ensuring rapid melting, while the carbon electrode withstands the current load. The blend of carbon and graphite is formulated to resist thermal shock and breakage, a common issue with inferior gouging rods. When used with appropriate power sources and air supply, Arcair 3/4" rods offer superior metal removal rates per inch of rod consumed, making them a cost-effective choice for high-volume operations.

Additional Information
Brand:Arcair
Diameter:3/4"
Length:12 in
Item:Rod
Process:Carbon Arc Gouging (CAC)
Packaging Description:pack of 1
Rod Type:DC Copperclad Pointed
Material:Copper-Coated Carbon/Graphite
Polarity:DCEP
Amperage Range:800 - 1200 Amps
Application:Heavy Duty Metal Removal, Foundry Applications, Weld Preparation

INCLUDED

  • Package of Arcair 3/4" x 12" DC Copperclad Pointed Carbon Gouging Rods

APPLICATIONS

  • Heavy Structural Steel Fabrication
  • Foundry Casting Finishing and Pad Washing
  • Shipbuilding and Marine Repair
  • Heavy Equipment Maintenance (Mining/Earthmoving)
  • Pressure Vessel Fabrication
  • Back-gouging of Heavy Plate Welds
  • Removal of Hardfacing and Wear Plates

FAQ

For 3/4-inch diameter DC copperclad pointed rods, the recommended current range is typically between 800 and 1200 Amps. Always consult the specific chart for your power source and application.

These rods are designed for Direct Current Electrode Positive (DCEP), also known as Reverse Polarity. This setting ensures proper heat distribution for efficient metal removal.

Most standard manual torches (like the K4000) are rated for rods up to 1/2 inch. A 3/4-inch rod requires a heavy-duty torch, such as the Tri-Arc foundry torch or specific automated equipment, to accommodate the diameter and amperage.

The copper coating improves electrical conductivity, helps keep the rod cool by reducing resistance, and maintains the rod's diameter for a more uniform groove width.

These DC rods are suitable for gouging carbon steel, stainless steel, cast iron, and various copper alloys. They are not typically used for aluminum (which often uses AC).

They should be stored in a cool, dry place. While they are not as sensitive to moisture as low-hydrogen welding electrodes, keeping them dry prevents potential coating oxidation or performance issues.

A 3/4" rod is used for removing large amounts of metal quickly, such as in foundries for removing risers, or in heavy fabrication for back-gouging thick plates.

Yes, the Air Carbon Arc Gouging process requires a supply of compressed air (typically 80-100 psi) to blow away the molten metal created by the arc.
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