
Displaying items by tag: Aumund
Update on calcined clay, January 2025
29 January 2025Northern-Ireland based cement producer Cemcor said this week that it has completed trials of a calcined clay cement product called CalcinX. The company started its trials in 2023 and it has been supported by Queen’s University Belfast and funding from Innovate UK. Work with commercial partners has involved precast concrete paving manufacturer Tobermore producing paviours made from 50% CalcinX as a CEM II replacement and Moore Concrete has also manufactured precast units using 50% CalcinX as a CEM I replacement. So far over 3000t of CalcinX has been produced in a number of industrial-scale trials.
David Millar, the managing director of Cemcor, mentioned his company’s plans for calcined clay in June 2022 when he was interviewed by Global Cement Magazine. The company that became Cemcor bought the Cookstown cement plant and a few other assets from Holcim at the start of 2022. It then changed its name to Cemcor in November 2022. At the time of the interview the company was looking to “...develop new value-added products, including low-CO2 options. This will allow us to use the same amount of clinker to produce more cement.” Millar couldn’t give away too many details at the time, however calcined clay was cited specifically. It was also noted that the company had the right material in its quarry and that it was already working with partners on it.
Amongst all the other decarbonisation options available for cement plants, a slow trickle of calcined clay projects keep being announced. In January 2025, for example, thyssenkrupp Polysius said it had secured a front-end engineering design contract from Circlua for the construction of the world’s largest activated clay plant in Brazil. This project in Para state will have a capacity of 3000t/day, will use renewable energy sources and will “improve the CO2 footprint in cement production.” CBMI Construction also officially launched a flash calcination clay project in Tangshan, Hebei province in China. In December 2024, Vicat signed an agreement with the US Department of Energy (DOE) Office of Clean Energy Demonstrations to develop the Lebec Net Zero (LNZ) project at its Lebec cement plant in California. This includes plans to produce calcined clay-based cement. Earlier in the autumn of 2024 Portugal-based Cimpor said it was preparing to convert a kiln at its Souselas plant to produce calcined clays, AVIC International Beijing and KHD said that they had secured a deal to build a 900t/day clay calcination plant for Ciments de l'Afrique (CIMAF) in Burkina Faso, and Holcim Česko said it was going to construct a calcined clay processing line at the Čížkovice cement plant in the Czech Republic.
One news story that stuck out in the autumn was the progress of a collaboration between Aumund and Holcim towards developing an electric linear calcination conveyor (eLCC). The two companies started work on the project in 2020 intending to look at the electrical calcination of clay using an Aumund pan conveyor. Initial tests of the eLCC reportedly demonstrated efficient thermal activation of clay through a combination of radiant heat and material circulation. The eLCC system is fully enclosed, insulated, has a compact design and can operate using electrical-powered renewable sources. The first industrial plant utilising this technology is scheduled for construction in 2025. Calcined clay technology and products by other industrial suppliers are available. The work by Aumund and its competitors show they are watching this market closely.
OneStone Consulting’s Joe Harder has found that only 14 clay calcination plants were operational worldwide in 2023 with a production capacity of just under 3.5Mt/yr. These are based in Latin America, Europe and Africa. In an article previewing a market report in the February 2025 issue of Global Cement Magazine, Harder predicts that by 2035 there will be 79 clay calcination plants with a capacity of just under 21Mt/yr. A steady growth of over 20 new plants annually is also expected subsequently from 2035 to 2050 as cement producers seek cost-effective ways to reduce their clinker factor. He identified installation costs, a lack of knowledge about clay-based cements, trouble obtaining mining rights and policy issues amongst other issues as holding back the use of clay calcination.
The current expectation is that calcined clay usage in the cement industry will be a minority option. Yet the size of global cement production can make a production share of, say, 3 - 8% a viable option for both cement manufacturers and equipment suppliers. The adoption of new cement products and standards can also take a long time and this clouds predictions of how far clay can go in the cement industry. At this point in the calcined clay story it is time to keep track of the new projects being set up.
Joe Harder will present a talk entitled ‘Calcined clay market trends by 2035’ at the Global FutureCem Conference taking place in Istanbul in early February 2025
Aumund and Holcim demonstrate linear clay calcination
27 November 2024Germany: Aumund and Holcim have demonstrated an electric linear calcination conveyor (eLCC) at Aumund’s headquarters in Rheinberg, Germany. Initial tests of the eLCC have reportedly demonstrated efficient thermal activation of clay through a combination of radiant heat and material circulation. In 2020, Aumund Fördertechnik teamed up with Holcim for a project focused on the electrical calcination of clay using an Aumund pan conveyor.
The company stated that the eLCC system is fully enclosed and insulated, minimising energy requirements and heat loss, with its compact design allowing for expansion of production capacities. It can operate with electrical heating elements powered by 100% renewable energy sources like wind or solar. The first industrial plant utilising this technology will be constructed in 2025.
New appointments revealed at Aumund in the US
21 February 2024US: Aumund Group has appointed Wes Allen appointed as Vice President Operations and Scott Martin as Head of the Global Conversion Team.
Allen has worked for Aumund since 2007 first as Director of After Sales and Service, North & Central America, then Information Technology Operations Manager and then Vice President Sales and Marketing. Prior to his experience with Aumund, Allen worked for environmental services company WM.
Martin previously worked in technical retrofit roles at Aumund since starting at the company in 2019. Prior to this he worked for KettenWulf as a Technical Account Manager and Project Engineer from 2016. Martin is a graduate in mechanical engineering from Kennesaw State University.
Austria: Australia-based FCT Combustion has appointed Átila Soares as its Sales Manager for Europe and Africa. He will be based at the company’s office in Vienna. Soares previously worked for Aumund Group in Brazil in a variety of roles since 2005. The latest position was as a Sales Manager based in São Paulo. He also holds a degree in mechanical engineering from the Faculdade de Engenharia Industrial (FEI) in Brazil.
Jan Weckes appointed as managing director of Schade Lagertechnik
11 October 2023Germany: Schade Lagertechnik appointed Jan Weckes as its managing director from the start of September 2023. Weckes previously worked as the managing director for IAS. Prior to this he had managerial sales and marketing roles with MBE Coal & Minerals Technology and worked for Outotec for a decade. He holds a PhD in metallurgy and materials engineering from RWTH Aachen University.
Poland: Germany-based Schade Lagertechnik has upgraded the bulk handling equipment for raw materials including limestone and flue gas desulfurisation (FGD) gypsum at a cement plant in Górażdże. A Schade cantilever reclaimer was supplied to double the conveying capacity to 400t/hr with an associated belt conveyor.
Notably, the subsidiary of Aumund says that the order presented several challenges such as integrating the new equipment into the existing infrastructure, adapting it to the design of the building that dated back to the 1970s and installing the new kit whilst allowing the plant to continue operating. Once the new equipment had been assembled the installation team only had 10 days to dismantle the old machine and to switch operation over to the new equipment.
Schade Lagertechnik was responsible for the engineering, design, fabrication and supply. Aumund Group Field Service also assisted with the installation.
Aumund Foundation takes charge of Aumund Group
21 June 2023Germany: Aumund Group will be run by the Aumund Foundation, following the death of its owner Franz-Walter Aumund in February 2023. The Aumund Foundation, created in 2019, was originally set up to promote the group’s philanthropic concerns, particularly on education, vocational training and research.
Alex van Denderen, the chief financial officer of Aumund Group and Aumund Holding, said “The Aumund Group is led by managing directors who have grown with the company and whose primary focus is on proximity to customers. It pursues the values of quality and reliability which have increasingly become anchored in the Aumund brand over its hundred year history. The Aumund Foundation supports the principle of creating something lasting for others, and is committed to achieving a sustainable future for the next generation.”
The group supplies products and services for conveying, storage, loading and unloading of bulk materials, site service, maintenance, and freight forwarding. It covers process chains in the cement, lime, gypsum, mining, minerals, metallurgy, foundry, power, chemicals, fertiliser and foodstuffs industries, as well as in ports and terminals and alternative fuels. Its subsidiaries include Aumund Fördertechnik, Schade Lagertechnik, Samson Materials Handling, Tilemann Ketten & Komponenten, Aumund Group Field Service and Aumund Logistic.
Türkiye: Ahmet Eren, the chair of Eren Holding, says that its Medcem Çimento subsidiary will double its cement production capacity to 7Mt/yr in 2024. Eren made the comments in an interview amongst revealing investment plans, in other sectors, according to Bloomberg. Medcem Çimento selected Sintek Group to build a new 9000t/day production line at its integrated Mersin plant in late 2021. Germany-based Aumund was also reported in 2022 to be supplying equipment for the project.
UK: Germany-based Aumund Group has appointed Martin Dummigan as the managing director of its Samson Materials Handling subsidiary. He succeeds Dale Lockley in the post.
Dummigan holds a master’s degree in electrical and electronic engineering from Queen’s University in Belfast. He started his career in 1990 as a research and development engineer. Over the next 30 years he has held numerous manufacturing and corporate management positions at companies including Telestack and Terex in various countries including China, the US, Japan and South Africa. His last position was as the Group Vice President of Operations for Astec Material Solutions. He is also a co-founder of the Spadetown Brewery based in Northern Ireland.
Aumund Group announces death of Franz-Walter Aumund
10 February 2023Germany: Aumund Group has reported that its chair Franz-Walter Aumund died on 4 February 2023. He was 78 years old. He was the third generation of the Aumund family to run the company after his grandfather Heinrich Aumund founded Aumund Patente in 1922.
A farewell ceremony will be held at Aumund Group’s headquarters in Rheinberg, North Rhine-Westphalia, on 14 February 2023.