Austrian steelmaker Marienhutte will upgrade its bar production line in Graz using Danieli’s newly patented Twin Drum technology. The revamp, covering the largest part of the finishing area, will replace the existing cooling bed for bars under 40 meters with a new system capable of handling bars up to 72 meters.
The Twin Drum system, Danieli’s 120th patented solution for long product rolling, merges the concepts of Twin Channel and roller table with aprons, enabling bar delivery at speeds up to 60 m/sec for diameters ranging from 8 to 40 mm. It eliminates the need for conventional aprons, streamlining the process.
The upgrade will fully automate the line, reducing equipment needs, simplifying operations, and improving worker safety. Marienhutte expects the modernization to boost production flexibility, lower operating costs, and better respond to market demands.
The turnkey project includes disassembly, installation, and commissioning during a scheduled three-week shutdown, with start-up planned for early 2026.