Primetals to modernize drive technology from AMAG

Primetals Technologies has received an order from AMAG rolling GmbH, an Austrian aluminium producer, to modernize the drive technology on the four-high cold rolling stand in its Ranshofen plant. The order covers not only the supply of the motors, converters and converter transformers, but also the couplings, disk brakes and mechanical adaptations.

Primetals is, in addition, handling the design, engineering, project management and training as well as the removal and assembly of components, repairs and the supply of spare parts. The purpose of the project is to increase plant availability. The conversion and commissioning work is scheduled to take place during a brief plant shutdown at the end of 2016. Primetals previously modernized the drive technology of the four-high hot rolling stand in 2015.

The drive solution to be implemented on the four-high cold rolling stand consists of a front/back motor layout for the stand and the coiler, and a single motor assembly for the uncoiler. The rugged, water-cooled induction motors from Siemens are fed by Sinamics Active Front End converters. A Sinamics SM150 converter drives the two 3.3 kV mill motors, each of which has a power rating of 2,200 kW and a speed ranging from 300–750 rpm. Sinamics S120 converters drive the 690 V coiler motors, each of which is rated at 500 kW and a speed ranging from 320–1.050 rpm.

Conversion and commissioning are scheduled to take place during a brief plant shutdown at the end of 2016. The challenge will be to convert the rolling stand with as little adaptation work as possible and the shortest possible interruption to production.

AMAG rolling GmbH is a global manufacturer of high-quality, rolled aluminum products. The company belongs to the Austrian AMAG Group, a leading premium supplier of high-quality cast and rolled aluminum products which are used in a vast range of industries, such as the aircraft, automotive, sports equipment, lighting, mechanical engineering, construction and packaging industries.

(Source: Primetals Technologies, Limited)

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