0461235880 - ESAB A6 Mastertrac Submerged Arc Welding Tractor with PEK Controller

Advanced Automation for Heavy Fabrication

The ESAB A6 Mastertrac SAW PEK (SKU: 0461235880) is a premier self-propelled automatic welding machine designed for the rigorous demands of heavy industrial fabrication. Engineered for the Submerged Arc Welding (SAW) process, this unit is a cornerstone of productivity in sectors such as shipbuilding, bridge construction, and pressure vessel manufacturing. The system is built around the modular A6 welding head, renowned for its durability and capacity to handle high currents and heavy wire diameters, ensuring maximum deposition rates and structural integrity in critical welds.

At the heart of this configuration is the PEK Process Controller. This advanced digital interface replaces traditional analog controls, offering operators and welding engineers precise command over every aspect of the welding procedure. The PEK unit allows for the pre-setting of parameters, real-time monitoring, and the storage of welding programs (memory channels). This digital integration ensures repeatability across shifts and operators, significantly reducing the risk of weld defects and the need for costly rework. The controller communicates directly with the power source and the tractor's drive motor to maintain constant welding conditions, even if external variables fluctuate.

Mechanically, the A6 Mastertrac features a robust 4-wheel drive system. This design provides superior traction and stability compared to 2-wheel drive alternatives, allowing the tractor to travel smoothly over inclined surfaces or uneven plates. The tractor's speed is electronically regulated via the PEK controller, ensuring a consistent heat input profile along the entire length of the seam. The unit typically includes a heavy-duty wire feed mechanism capable of feeding solid wires ranging from 3.0mm to 6.0mm (depending on specific contact tip configuration), making it ideal for single-pass or multi-pass heavy plate welding.

The modularity of the A6 system is a key technical advantage. While this specific SKU is configured for SAW with the PEK controller, the A6 platform allows for future adaptations, such as conversion to GMAW or the addition of twin-wire or tandem-wire setups, providing a future-proof investment for evolving production lines. The system integrates seamlessly with ESAB's range of heavy-duty power sources, such as the LAF (DC) and TAF (AC) series.