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Seamless traceability along the entire value chain

a success story from AMAG, coilDNA and LEIBINGER.

“The main advantages of LEIBINGER’s solutions include the outstanding availability of the printers, easy handling and robustness, as well as the clean typeface and great flexibility in terms of fonts used.“

Leopold Pöcksteiner

Managing Director of coilDNA


The companies

AMAG Austria Metall AG is Austria’s largest aluminium producer. The company’s production sites in Ranshofen/Austria (Group headquarters), Overseas, Karlsruhe / Germany and Sept Iles/Canada manufacture premium-quality primary aluminium, cast and rolled aluminium products as well as aerospace components. The company’s key technological competencies are recycling, casting, rolling, heat treatment, surface finishing and milling.

coilDNA, as a 100% subsidiary of AMAG, is a start-up in the field of digitalisation based in Linz/Austria. The business is based on a patented technology for marking and tracking continuously produced semi-finished products. These include coils and sheets, extruded or roll-formed profiles, as well as hoses or cables made of different materials such as steel, aluminium or plastic.

LEIBINGER - trusted partner: When it comes to marking the aluminium strips, sheets and plates produced in Ranshofen, AMAG uses LEIBINGER printers to meet the diverse requirements of its customers from different industries incl. aero-space, automotive, packaging, construction and mechanical engineering, electronics, sporting goods, radiators and heat exchangers.

Two challenges: unwavering reliability & maximum flexibility

In the case of printing the patented coilDNA code, the specific requirement was the continuous, highly reliable printing of a constantly changing alphanumeric code.

When marking aluminium coils at AMAG Austria Metall AG, the flexible positioning of the print heads relative to the rolling strip on the different lines posed a challenge. Especially on the longitudinal slitting lines, up to 8 lanes had to be printed with different markings from above and from below.

Reliable, continuous marking with a smart code

The patented coilDNA code is used as a special marking variant, which is applied over the entire length of the rolled products, often ranging from several 100 to 1000 metres, in the final phase of production.

The coilDNA code consists of 14 clear alphanumeric characters that are strung together in the code track – and which are never repeated. Each individual code element allows its exact position on the product to be determined. If data is assigned to these code elements, it can be retrieved in subsequent processing steps, regardless of how the semi-finished product was split. This enables seamless tracking of the material, its properties and manufacturing conditions over several stages of the value chain – and ideally all the way through to the end product.

Leibinger Amag coilDNA Case Study


The solution:
LEIBINGER’s specially developed interface software for high process speed

The need to print the constantly changing coilDNA code was solved by means of a specially developed interface software based on LEIBINGER’s messaging protocol. Thanks to the printers’ high data processing speed, the coilDNA code can now be printed with re- producible results at process speeds of up to 500 m/min.

The flexible positioning and easy manipulation of the LEIBINGER print heads on the line enable the printing of the rolled strips at almost any width position, even in several lanes if required. This means that the slit strips produced on the longitudinal slitting lines can be marked individually. 

Excellent legibility of the dot-matrix font used is ensured even in this high speed range.

"The installation of the printers and related equipment during ongoing production – without interrupting it – presented the team with a special challenge, which was solved to our complete satisfaction and on schedule thanks to excellent project coordination", says Dr. Werner Aumayr, Head of AMAG IT.

“The comprehensive support provided through LEIBINGER and its partner ECM during the installation and testing phase, as well as the high quality and flexibility of the JET3up printers in use, deserve special mention.“

Dr. Werner Aumayr

Head of AMAG IT

The result:
All marking requirements were met 100%

By using coilDNA technology, AMAG can now offer its customers new services. coilDNA-marked strips allow seamless traceability of the delivered strips and sheets, as well as the parts created from them through further processing, including their properties and manufacturing parameters. Specially developed coilDNA apps enable AMAG customers to communicate and coordinate quickly, easily and by product once the coilDNA code has been scanned. Achieving this was only possible with LEIBINGER‘s highly reliable coding & marking technology.

Leibinger Amag coilDNA Case Study

“When it comes to printing the coilDNA code, high process speeds of up to 500 m/min on the longitudinal slitting machines combined with excellent code legibility, even in the high speed range, are impressive.“

Leopold Pöcksteiner

Managing Director of coilDNA

Conclusion and recommendation

“The key finding from the project was that, using standard LEIBINGER printing protocols, even markings not provided for in the standard, such as the coilDNA code, can also be applied at high speeds,” says Dr. Werner Aumayr, Head of AMAG IT.

“I recommend that, before using CIJ printers in the metal producing industry, it makes sense to carry out extensive tests in terms of the material surface, marking resistance, process speed, ambient conditions and code legibility. LEIBINGER and its partner carried out extremely valuable preliminary work and provided comprehensive advice. We would be happy to recommend working with them to other companies requiring this expertise.”

“By using close to 30 LEIBINGER printers on a variety of systems in the AMAG rolling mills, the wide-ranging marking requirements of our customers from different industries are met to the fullest – and with an exceptional degree of flexibility.“

Dr. Werner Aumayr

Head of AMAG IT

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Reliable partner for intelligent marking systems

LEIBINGER customers can always count on high-level responsiveness and superior service. LEIBINGER can be on site to support users with their team of dedicated employees in Germany and through the network of partners around the world. With LEIBINGER Connect, those responsible at the MAGGI plant as well as LEIBINGER technicians can view key production data and ensure optimized performance and efficiency during ongoing operations.

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