907620 - Miller SubArc AC/DC 1000 Digital SAW Power Source

Miller SubArc AC/DC 1000 Digital Power Source Overview

The Miller SubArc AC/DC 1000 Digital Welding Power Source (SKU: 907620) represents a significant advancement in heavy industrial submerged arc welding (SAW) technology. Designed to meet the rigorous demands of sectors such as shipbuilding, railcar manufacturing, and pressure vessel fabrication, this power source delivers a massive 1000 Amps of output. Its defining feature is the versatile AC/DC output capability, which enables the deployment of tandem arc welding systems. By utilizing a DC lead arc combined with an AC trailing arc—or various AC/AC combinations—operators can achieve substantially higher deposition rates, thereby reducing cycle times on thick weldments without compromising metallurgical quality.

Integration and control are at the forefront of the SubArc Digital Series design. The unit features a standard Modbus® connection, facilitating seamless integration into complex automated systems or simple remote operations. The digital control architecture eliminates the need for external laptops or specialized software for wave shaping; the system automatically handles phase shifting between power sources to prevent arc interaction in multi-arc configurations. This "plug-and-play" philosophy extends to paralleling machines; users can simply connect a paralleling cable between units to increase maximum current output, streamlining the setup process for high-amperage applications.

Built to withstand harsh industrial environments, the SubArc AC/DC 1000 is housed in an IP-23 rated enclosure, ensuring internal components are protected from dust and moisture. The system also supports low-voltage accessory operation (24 VAC), enhancing safety and reliability. Furthermore, the unit is Insight Core™ capable, offering a pathway to internet-based welding information management that helps facility managers track performance and optimize productivity. With its combination of high power, digital intelligence, and robust construction, this power source is an ideal solution for modernizing heavy fabrication workflows.