35813 - ESAB Current Collector Bar for A2/A6 Welding Heads

Technical Overview of the ESAB 35813 Bus Collector

The ESAB 35813 Bus Collector is a critical electromechanical component designed specifically for the power transmission systems within ESAB's automated welding equipment, most notably the A2 and A6 series welding heads. In the context of heavy-duty industrial welding—such as Submerged Arc Welding (SAW) or high-deposition MIG/MAG applications—the integrity of the current transfer path is paramount. This bus collector serves as a primary junction point, facilitating the transfer of high-amperage welding current from the input cabling to the moving parts of the welding head and ultimately to the contact tip.

Manufactured from a specialized high-conductivity copper alloy, the 35813 is engineered to minimize electrical resistance (impedance) at the connection interface. Low resistance is essential in automated welding to prevent parasitic voltage drops that can destabilize the arc or lead to inconsistent weld penetration. Furthermore, the material composition is selected to withstand the thermal cycling inherent in continuous welding operations, resisting oxidation and deformation under load. As an OEM part, it adheres strictly to ESAB's dimensional tolerances, ensuring a precise fit that maintains the mechanical alignment of the welding head assembly.

Failure to replace a worn or pitted bus collector can result in arcing at the contact surfaces, excessive heat generation, and potential damage to surrounding insulation or mechanical components. Regular inspection and replacement of the bus collector are recommended as part of a preventative maintenance schedule for A2/A6 tractors and beam-traveling heads. This component is supplied as a single unit, ready for installation into the existing busbar assembly of the compatible welding machine.

Key Technical Specifications:

• Material: High-purity conductive alloy
• Compatibility: ESAB A2 / A6 Automation Systems
• Function: High-current transfer and distribution
• Part Number: 35813 (often referenced as 0000035813)