0818971881 - ESAB A6S Submerged Arc Tandem Head 74:1 Ratio

Reliable Feeding for Heavy Fabrication

For professional welding operators and automation technicians, the ESAB A6S 74:1 SAW Tandem Head is synonymous with reliability. When you are running long seams on bridge girders, wind towers, or ship hulls, the last thing you need is a wire feed issue interrupting the arc. This head is built to prevent exactly that. The 0818971881 model features a 74:1 gear reduction, delivering the high torque necessary to push wire steadily, even when using larger diameters typical of heavy submerged arc applications. This torque ensures that the wire speed remains constant, regardless of minor resistance in the liner or spool, resulting in a flawless bead profile every time.

The "Tandem" capability of this head is a game-changer for production speed. It allows you to run multiple wires in close proximity, drastically increasing the amount of metal deposited per hour. This means you can finish jobs faster and move on to the next project. The A6S design is user-friendly, featuring accessible adjustment points for pressure rolls and wire straighteners, allowing operators to fine-tune the feeding mechanics quickly during setup or wire changes. Its compatibility with standard ESAB slides and mounting equipment means installation is straightforward, minimizing downtime during replacement or upgrades.

Durability is a key feature of the A6S line. The housing and mechanical components are constructed to resist the harsh conditions of a sub-arc environment, where flux dust and high heat are constant factors. The motor and gearbox are sealed and lubricated for long life, reducing the need for frequent servicing. When you choose the ESAB A6S 74:1 head, you aren't just buying a part; you are investing in the continuity of your production line. It provides the control and stability needed to execute complex weld procedures with confidence.

Whether you are replacing a worn-out unit or configuring a new tandem arc station, this head delivers the performance professional welders expect from ESAB. It supports the precise control of welding parameters required for high-quality structural welds, ensuring that your automated systems deliver peak performance shift after shift.