rothe erde Home Locations Contact English arrow-down Search search Products Industries Service Procurement Company Career Downloads rothe erde® rings rothe erde® rings - Quality that convinces Thanks to our 160 years of experience in the steel forming and mechanical machining industries, rothe erde® rings shine through high performance. With the know-how from open die and impression die forging, we were able to perfectly apply the technology needed for seamless rolled rings (radial-axial-rolling mill technology) from the very beginning and to continuously develop this. This manufacturing process offers crucial economic and technical advantages, in contrast to other processes, such as using thick plates in manufacturing. In particular, the typical tangential grain orientation for rolled rings ensures isotropic mechanical properties around the entire circumference of the ring. Our high demands on the material quality are met by the expertise of our employees in ingot and continuous casting, electroslag remelting and forging. Only if we can meet the broad spectrum of our customers demands will we meet our own requirements. thyssenkrupp rothe erde manufactures rings at the following locations: Germany USA China In this way, we can map different local requirements from a single source. To ensure that the products arrive quickly and safely at their destination, we also support our customers with a variety of logistical solutions. Besides their use in slewing bearings, rothe erde® rings’ applications range from industrial machinery, automotive engineering, aerospace to wind turbines and tunnel boring machines. Forged rings are used in large gears, large valves, production systems, gear rings and in pipeline construction. This diversity is primarily possible by the fact our rings are machined in-house. The experience gained over many years enables thyssenkrupp rothe erde to respond to today’s and tomorrow’s market challenges. Our products Raw rings Seamlessly rolled rings | manufacturing area with a 300 to 8,000 mm outer diameter Machined rings Ready-to-install components | Different depths | tip circle diameters from 400 to 10,000 mm Structure rings Complicated cross-section | diameter of up to 5.5 metres | weight of only 23 to 57 kg Do you want to contact us? Then give us a call, write an email or fill out our contact form. Click here to fill out our contact form Overview of your advantages: 8 rolling mills in 3 production locations with numerous manufacturing possibilities thanks to a production capability ranging from 300 and 8,000 mm outer diameter and a weight of up to 30 t. Individual production through material qualities such as ingot and continuous casting, but also ESR and forged material. High quality of the products through the most modern testing facilities. Short response times by stocking the most common materials in different dimensions (this also includes aluminum alloys). What is special about rothe erde® rings is the large production spectrum and the diverse manufacturing options that are shown worldwide. To master the respective production processes and consistency play a decisive role. Kay Cappelletti Head of Mechanical Engineering I Our promise to you Flexibility Productivity Individuality Universality Quality Sustainability and social responsibility arrow-left arrow-right We can meet customer requests and agreed delivery dates. How is that possible? We take flexible measures as early as the consultation phase to help optimize the ring dimensions. In addition, the subsequent planning of incoming orders and control of production are highly flexible. In order to guarantee this flexibility and short response times, we keep the most common materials in stock in various dimensions. The materials in stock are: ingots and continuous cast grades preformed and ESR materials non-ferrous metals standard aluminum alloys The procurement of materials that are not permanently in stock is ensured by our worldwide connections. We meet your individual requirements: we can choose between different production systems for different ring types and sizes. We decide on . With our state-of-the-art ring rolling mills and our modern ring rolling technology, we can offer our customers all types of processing in addition to raw-rolled rings. rothe erde rings are versatile. Some application examples are: From planning to shipping - we make sure that and are consistently in all functional areas. Sustainability, environmental protection, health and occupational safety are core elements in our corporate strategy. With our innovative product solutions, we want to make a positive contribution to the global development. Material-specific heat treatment and processing of our rothe erde® rings Different material properties are required depending on the intended use. In addition to our decades of experience and in-depth knowledge, our state-of-the-art technical equipment and processes are essential to carry out material-specific heat treatment processes. In doing so, we strictly adhere to the specific time-temperature specifications of the special materials. In this way, we achieve optimal processing and application properties and can meet the most diverse requirements of our customers. The precise ring dimensions also play an important role in the intended use. The ring dimension is supported by linked CAD and CNC programs. Even when sawing the ingot, the specified weights are precisely adhered to the modern high-performance saws with integrated weighing devices, so that we can achieve very tight manufacturing tolerances. Did you know that our existing systems even meet the high requirements for the aerospace application area? Our products are of high quality, resilient and durable. The production process of our rothe erde® rings Raw material Sawing arrow-left arrow-right Our essential know-how in the radial-axial rolling technology ensures that the forces and reductions create a perfectly round ring and not an oval-warped structure. Dr. Thomas Reip Plant manager in Dortmund, Germany Are you interested in our rings? Feel free to contact us. Last Name, First Name * Company E-Mail * Telephone * + please specify country code Message I have read and accept the data protection statement. * *mendatory field Submit now Contact thyssenkrupp rothe erde Germany GmbH Tremoniastraße 5-11 44137 Dortmund Telephone: +49 231 186 2840 E-Mail: industrie.rotheerde@thyssenkrupp.com → Contact form rothe erde Products Industries Service Company Company locations Career thyssenkrupp rothe erde Germany GmbH Corporate Website Contact thyssenkrupp rothe erde Germany GmbH © 2021 Sitemap Imprint Legal notes Share tk-share