Over 350 guests from 55 countries – Four years after the very successful LOESCHE Symposium held in 2010, the company invited to the LOESCHE SYMPOSIUM 2014 which took place in the Hyatt Regency Hotel in Duesseldorf


Duesseldorf – Every four years the plant engineering company LOESCHE invites its customers and business partners from industries such as cement-, coal-,  steel- or mineral, to their Symposium which offers a platform to introduce the latest technological developments within the LOESCHE-Group as well as share experiences about LOESCHE products already installed at various plants worldwide.


The Symposium was fully booked – 350 interested delegates listened to the technical papers

This year’s LOESCHE Symposium was held on 25-26 September 2014 at the Hyatt Regency hotel in Düsseldorf, Germany. Over 350 guests from 55 countries took part in this two-day lecture event with accompanying exhibition. Numerous suppliers that had been particularly associated with LOESCHE over the years, such as the companies Scheuch from Aurolzmünster (Austria), expert for air and environmental technology, IKN GmbH from Neustadt, Schade/Aumund from Gelsenkirchen, Ventilatorenfabrik Oelde GmbH from Oelde, Beumer Group from Beckum, Fa. Kreisel GmbH & Co. KG from Kauschwitz and Renk AG from Augsburg, presented their products and services at the exhibition, which was located next to the lecture room. 24 lectures were offered to the very interested audience in the two days of Symposium each followed by an evening event with all participants.

After a warm welcome by LOESCHE’s CEO Dr Thomas Loesche, Dr Daniel Strohmeyer, director of Process Technology, updated the delegates about the latest developments in LOESCHE grinding technology. Product development in the company is primarily driven by product requirements, environmental considerations and resource limits of cement production. He explained the trends towards larger mill sizes such as LOESCHE’s LM 70.4+4 and 70.5 and the need for improved performance, which is delivered by its new LDC classifier.  The first LM 70.4+4 mill was sold to  the Holcim Group in 2013. Erection of the mill which will be driven by a COPE gearbox is scheduled for the end of 2015.

Peter Boiger of Renk followed on, focusing on one specific feature for LOESCHE Mills, the COPE drive (Compact Planetary Electric). He highlighted the equipment’s higher availability and lower total cost of ownership (TCO).

Loesche Symposium 2014 Peter Boiger Renk

Peter Boiger explains the advantages of the COPE-drive and was awarded with a price for the best presentation of the Symposium

A networking coffee break gave all attendees the opportunity to make new contacts, exchange ideas, and catch up on the news with friends and colleagues. The exhibition stalls generated a great interest and further interaction between the attendees.

The program continued with Prof. Horst-Michael Ludwig of the Bauhaus University, Weimar and Dr Holger Wulfert from LOESCHE who introduced one of LOESCHE’s latest research results and explained the process of producing high quality binder from steelmaking slags. CO2-emissions have to be reduced within the cement industry. Turning liquid slag into a reactive material can be one solution for the problem.

Dr Gerald Wimmer of Siemens VAI, Austria, explained the innovative approach for LD (Linz-Donauwitz) slag valorisation to reduce clinker factors in the cement-making process. The company’s technology will enable the use of LD slag in the production of cement, effectively reducing the clinker factor and thus bring down specific CO2 emissions, he explained. Moreover, the effective use of LD slag will reduce the slag’s negative impact on the environment as landfill or other disposal options will be no longer required to the same extent, Dr Wimmer added.

LOESCHE’s grinding technology also enjoyed support from the industry as reflected by a series of presentations from leading cement producers.

Alexander Flacher, who heads Holcim Group Support, took visitors through the history of VRMs used in clinker grinding by the Swiss cement producer. The company operates at present 33 VRMs, of which 17 were supplied by LOESCHE.

After a communication- and lunch break Dr Dirk Spenner, MD of Spenner Zement, discussed the operating experience of the first VRM for GBFS grinding at the cement plant in Duisburg. This presentation was also supposed to give inside information as a plant visit to the Spenner plant in Duisburg, including the LOESCHE VRM 46.2+2 took place with all interested participants on Saturday as part of the weekend program.

One highlight of the day was the presentation of Southern Province Cement Co. from Saudi Arabia, which has been held by Mr. Bashar Sweidan on behalf of Southern Province Cement Co. The company was the first in the Kingdom of Saudi Arabia who installed a Vertical Roller Mill for cement grinding. This VRM was delivered by LOESCHE. Bashar Sweidan informed the audience about the satisfaction of the company and their plans for further investments in further cement lines with LOESCHE Mills.


Scenic view of Loesche Mills in Saudia Arabia

Radwan Mouakat of National Cement Co, UAE, explained the cost savings obtained due to the company’s fuel conversion project from HFO to pulverised coal.

This presentation was followed by Onur Ataky from Sintek, reflected on the change of preferences that sees VRMs take the centre-stage rather than the traditional ball mill.

Following the afternoon coffee break in the exhibition area LOESCHE’s André Baetz and Dr Holger Wulfert as well as Dr Andreas Jungmann of Cala presented their paper “Dry selective communition and sorting of concrete rubble – The end of downcycling of crushed concrete, by usage of LOESCHE Mill”.

Dr Jungmann and Dr Wulfert stayed on the stage for their next presentation together with Carsten Gerold, also from LOESCHE and Dr Schiffers, Cala, about the production of high value metal products and construction materials from steel slag and waste material by using selective comminution and dry sorting.

The final paper of the day was given by Matthias Mersmann of aixergee. He highlighted process optimisation in the cement industry and received a good feedback.

For the evening a Gala Dinner was organized in the Ballroom of the Hyatt hotel. This offered an excellent opportunity to meet many more participants from around the globe and for operators to exchange views and experiences.

The second day’s program commenced with Dr Daniel Camarasa who gave the interested audience a general outlook of the cement industry in Africa.

Pieter Jacobs followed with “15 years of successful operation of a LOESCHE VRM type LM 50.4 in a hard rock application in Phalaborwa”.

Olivier Thomas and Pierre Wlodarzyk of LOESCHE introduced the company’s new ‘Operation and Maintenance’ business line, which sees the equipment supplier provide a multi-level maintenance and repair service through the entire lifecycle of a cement producer’s installed grinding mills, ensuring smooth operation and maximum uptime.

A view from India was offered by M Srinivasan of Madras Cement and V S Narang of My Home Industries after the coffee break. They advised the audience on their operating experiences with LOESCHE Mills in their companies’ applications.

ZKG’s Dr. Hubert Baier sketched a general view on future alternative fuel trends, effectively introducing a series of papers offered by A TEC specialists which were given in the afternoon session after the lunch break.

A TEC, the Austrian pyroprocess expert, since 2010 part of the LOESCHE Group, extended LOESCHE’s product portfolio in recent years by several specific products in the area of plant optimization and alternative fuel use.

The company’s new chain mill was introduced by Johannes Uttinger from A TEC. Mr. Müllner described impressively that the mill was already driven to  70 % with alternative fuels from waste, two weeks after commisioning. This gives a holistic substitution rate of 88 %.

The burner especially designed for this purpose by A TEC GRECO promises even higher substitution rates in the future, as explained by Joel Maia, A TEC GRECO in its presentation.

Dr. Stefan Kern followed by presenting A TEC’s “State of the Art”-Technology “NOx reduction below 200 mg/Nm³“.

The complete removal of waste materials was explained jointly  by Johannes Müllner, A TEC and Ernst-Michael Sipple, Holcim Emerging Europe with their report of the first operation experience in the industrial plant in Rohožník. Each year they are able to sell 4.000 tons of industrial minerals produced out of 20.000 tons bypassdust.

Finally Friedrich Willitsch from A TEC and Holger Reinhold from Scheuch, explained ways to reduce mercury emissions in the cement industry with a new system which will be commissioned by the end of this year.

Dr Thomas Loesche then formally closed this most interesting and stimulating symposium, which brought experts to Germany from around the world.

The evening continued with an enjoyable boat trip on the river Rhine which gave the participants the opportunity to see the “Media Harbour” with the Hyatt hotel at the front, from a different view.

Weekend program part I: Spenner plant visit in Duisburg

The two-days lecture program was followed by a plant visit in Duisburg on Saturday, for all interested customers to introduce the Loesche Mill for slag grinding (LM 46.2+2).


Plant visit at Spenner cement plant in Duisburg – brave delegates on their way to the mill

Weekend program part II: “Alternative-Fuels-Sightseeing Tour”

This plant visit was followed by another one on the same day: after visiting Spenner Zement in Duisburg, the Symposium participants went straight to the airport and started a 2-days trip to Austria.

Plant visit in Salzburg

Dr Guenter Waldl from Leube Zement welcomed the participants in Gartenau near Salzburg and introduced, together with Dr Guenther Schwaiger from A TEC, the outstanding modernization of Leube’s Gartenau plant, which was done within 15 month construction period only.


Klaus Czepl from Leube Zement with one of the groups

Loesche Symposium 2014 - View from cement plant

View from the cement plant

After a presentation about the construction process and a visit to the plant, the participants could enjoy the evening in Salzburg with a sightseeing tour in the city center and a joint dinner.

Plant visit in Wietersdorf

On the next day, the trip continued to the South of Austria. The participants had the chance to visit Wietersdorf plant in Carinthia. At the plant, A TEC’s experts Johannes Uttinger and Joel Maia showed the latest product developments directly at the plant – the Rocket Mill and Flexiflame EcoPro® burner, which were presented to the audience in Duesseldorf two days earlier.

Well over half of the participants documented their interest in the A TEC technology already after seeing the plant. No wonder because especially in the area of alternative fuels in cement plants A TEC could show their expertise in Wietersdorf. Thus, the cement plant was fired by 88 % with waste material (RDF) at that day. This is world record!


One of the groups visiting Wietersdorf plant

The Wietersdorfer & Peggauer Zementwerke GmbH was a great host on that weekend. They have treated the LOESCHE guests after the tours with local delicacies. (s.b.)

Loesche Symposium 2014 - Lunch at Wietersdorf plant

The trip ended with a visit of the beautiful castle of Hochosterwitz before Dr. Loesche as well as LOESCHE’s and A TEC’s experts said farewell to the Symposium’s participants.


View from top of the castle of Hochosterwitz

Stay tuned for information about our upcoming Symposium in 2018. Registration will open in 2016 but the date is yet to be confirmed. More information can be found on our website www.loesche.com

Spotlights – Ladies’ program


Impressions of the ladies’ activities

The ladies who had decided to come to Duesseldorf on the occasion of the Symposium participated in a guided sightseeing and shopping tour in the center of Duesseldorf with lot of nice moments to remember.

Spotlights – Reaction from Participants

Dear Dr. Thomas Loesche and Dr. Joachim Kirchman,

I wanted to take this opportunity to thank you for the time well spent which added many helpful insights during my attendance at the Loesche Symposium.

From the onset I had the pleasure in dealing with professional people; the communication for minor arrangements like logistics was handled very thoroughly and was done timeously. Your years of research, your depth of understanding of Cement Technology and your ability to present the subject in such an interesting way has produced one of the most memorable conferences in my service in the Cement Industry.

Since we are entering a new growth phase in our Cement Plants, your presentations were very timely. I believe we can benefit immediately from some of the in depth knowledge that I have taken away from the Loesche Symposium.

I want to acknowledge everyone’s extra effort that was put in to make this conference a success, your commitment to excellence has inspired me as well as your attention to detail.



Abdulaziz Asad

General Manager

Cement Division

Arkan Building Materials Co. PJSC


Dear Jennifer,

What a triumph!

I just wanted to add my heartfelt thanks and congratulations to the hundreds you have undoubtedly received from other attendees, for inspiring and organizing such a profound and spectacular event.

I thought that the organization of the symposium was absolutely impeccable and that the presentations and all the contributions were of an amazingly high standard. I certainly learnt a lot and the whole experience has given me fresh hope and provided me with new ideas for the future.

Please pass on my sincere thanks to all those involved and specially Dr Loesche

You should be very pleased and very very proud.

Kind Regards,

Afzaal Shaiq Qadri
Dy. General Manager
Hamriyah Cement Company FZC.


Dear Sirs,

Successful symposium in all respects by its organization, the variety of exhibitors, the wealth of topics and by the quality of the speakers !!!!!!!

I want to thank you for allowing me to take part of such a momentous event, during which I was not at all out of place because I worked in the past with all these famous partners.

Scheduled visits are not left out when they helped to integrate all advanced German and Austrian. industries and cultures.




Cement Consulting in Algeria