technology

SAEL has successfully completed the restructuring of Varidur Jagenberg at the Ermolli paper mill in Italy

SAEL has successfully completed the restructuring of Varidur Jagenberg at the Ermolli paper mill in Italy

The automation and drive system, successfully initiated a year ago, is operating at peak performance. The deep mechatronic restructuring, carried out by the paper mill, immediately increased by 30% the performances.

With the decommissioning of various DC Drives derived from the previous PM3 conversion – from DC to energy saving liquid-cooled AC, as strictly directed by the ownership in 2021 – it was decided to salvage some of these to breathe new life into the rewinder.

The paper mill, technically well-trained over years of mutual collaboration with SAEL, and supported by in-house electronic technicians who use and manage the products almost as if they were own employees, decided to propose a collaborative effort to SAEL. Immediately, SAEL, leveraging its DNA to recover every single electrical component previously supplied, was ready to accept the proposal, closely reinforcing the collaboration with the Ermolli Paper Mill.

The achieved result led to excellent outcomes, also thanks to the mechanical and hydraulic retrofit with the replacement of the unwinder – managed by PI Gualtiero Moia. The paper mill’s electrical staff, on the other hand, focused on implementing modifications in the old electrical panel of PM1 according to our specifications, reusing electrical panels, DC drives, PLCs, and electromechanical components. SAEL was only involved in the project’s electrical engineering, PLC software, the addition of the PILZ system ensuring Varidur’s safety, and the development of the “Winder SAEL Scalink” supervisor that always accompanies our rewinder.

The smooth and rapid start-up has yielded exceptional results, rewarding the employed paper mill technical staff in just a few days after restart. In addition to the necessity of updating outdated electronic components due to the lack of efficiency caused by the unavailability of spare parts, the restructuring has ensured the safety of the entire machine, complying with the latest mandatory safety regulations. Following a risk analysis conducted and monitored by the paper mill, various control and safety devices have been implemented and managed, ensuring compliance with the latest applicable regulations through a PILZ PLC File Safe.

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