New “High-Specification” Six-High Mill Receives Final Acceptance by Customer

ElvalHalcor- Greece

Mino is proud to announce that, on July 18th 2023, the Final Acceptance Certificate of the new MINO Six-High Cold Mill installed in the Oinofyta, Viotia plant of ElvalHalcor Hellenic Copper and Aluminium Industry S.A. of Greece (hereinafter “ELVAL”) was signed by the Customer.

The new Six-high Mill, with a 2400 mm wide barrel length and a max. rolling speed of 1800 m/min, is complimented by the latest design concepts and a full suite of enhanced state-of-the-art control solutions; it is considered to be one of the most advanced Six-high Cold Mill for aluminium operating in Europe today.

The Final Acceptance Certificate has been signed by the Customer after having completed an extensive period of performances tests and trial production on a diverse selection of aluminium alloys, during which all guaranteed performance parameters have been achieved or, in some cases, even exceeded.

The rigorous and thorough Mill’s testing procedure has been fulfilled by a joint MINO team of specialized technicians from the MINO group, comprising of MINO S.p.A. (Italy) and Mino Process Control (UK), working in close cooperation with ELVAL’s technical team.

This subject Mill is capable of producing up to 150.000 tons/year over the widest spectrum of aluminium alloys, ranging from foil-stock to can-stock alloys.

Minimum achievable gauges are 0.10 mm on soft alloys, 0.15 mm on medium alloys and 0.19 mm on hard alloys.

The Mill is equipped with its own fully-automatic coil circulation system which is interfaced with a High Bay coil storage system, coil preparation station, entry side trimmer, pup-coil unwinding station, automatic spool transfer device, automatic strapping and marking and the latest generation of MINO Process Control’s AVANTItm TCS system for AGC/AFC control. The AVANTI system includes unique model based predictive control algorithms for further enhancement of the thickness control.  The Mill is driven by powerful medium voltage AC main drives.

Additionally, the Mill is equipped with advanced sensors and monitoring systems, such as bearing temperature control, strip temperature control, vibration monitoring and edge crack detection. All these systems are designed and supplied by MINO from within its Automation Division.

To provide precise flatness control at higher speeds, the Mill is provided with the latest work roll induction type hot edge system coupled with a long stroke shifting system for the intermediate rolls. These design features allow the Mill to cope with different values of strip thickness and of strip width and to roll in constant stable condition whilst maintaining the strip flatness at the strip edges, up to the maximum rolling speed of 1800 m/min.

The complete Level 1 and Level 2 Automation Control System with mathematical models and Rolling Recipes have been developed by MINO’s Automation Division.

About ELVAL/MINO cooperation

The cooperation between MINO and ELVAL dates back for three decades, when MINO began its relationship with an award for comprehensive revamp of a cold mill and a tandem mill installed in their UK based company: Bridgnorth Aluminium Ltd., based in Shropshire, England.

During the same period, MINO also supplied four rolling mills and a milling line for copper and brass strip to their Halcor’s plant, Sofiamed, based in Bulgaria. 

More recently, MINO were awarded a complete rebuild project at Bridgnorth where a pre-owned cold mill was relocated from Spain to the site and completely modernized. The rolling mill was re-designed to roll thin gauge products for lithographic products.

Later, in 2015 and 2018, MINO successfully undertook two further revamping projects in the ELVAL plant in Greece: a cold rolling mill for can-stock production and a thin strip cold rolling mill.

About ELVAL

ELVAL is the aluminium rolling division of ElvalHalcor S.A., one of the leading aluminium rolling manufacturers worldwide. For almost 50 years, ELVAL has been recognized as a trusted partner and innovative aluminium manufacturer, with a broad portfolio of quality products for the packaging, construction, shipbuilding, automotive, energy, industrial and HVAC markets.

Through an established global commercial network across 21 countries, ELVAL exports approximately 80% of its production to more than 60 countries and offers reliable and competitive solutions that meet the requirements of the most demanding global customers.

For more information about ELVAL, please visit their website www.elval.com

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