0818971880 - ESAB A6S Submerged Arc Tandem Welding Head 156:1 Ratio

Reliability Where It Counts

When you are running long sub-arc seams on a bridge girder or a wind tower section, the last thing you need is a wire feeder that slips or jams. The ESAB A6S 156:1 SAW Tandem Head is built for the welder who needs equipment that just works, shift after shift. This isn't just a piece of machinery; it's the business end of your automation setup. The tandem configuration means you are likely pushing a lot of metal, using two wires to lay down heavy beads fast. This head handles that thermal and mechanical stress without breaking a sweat, keeping your arc stable and your puddles consistent.

The 156:1 gear ratio is the sweet spot for general heavy-duty work. It gives the motor enough leverage to push wire through long conduits without stalling, yet it's fast enough to keep up with the high deposition rates required by modern production schedules. You'll notice the difference in the smoothness of the feed. Less stuttering means a cleaner arc start and fewer defects to grind out later. The wire straightener included in the assembly is robust and easy to adjust, ensuring the wire hits the joint exactly where you aimed it, which is critical when you are welding deep grooves blindly under a layer of flux.

Maintenance on the A6S is straightforward, designed by people who understand that downtime kills profitability. The components are accessible, and the modular design means if a part does wear out, you can swap it without tearing the whole machine apart. Whether you are retrofitting an old beam welder or setting up a new tractor, this head bolts on and integrates easily. It’s tough, it’s precise, and it helps you turn out X-ray quality welds day in and day out. For serious sub-arc operators, the A6S Tandem Head is the standard for a reason.