Efficient and flexible drive technology
for the Doemens Academy

The renowned Doemens Academy has been training young people in the brewing, beverage and food industries for more than 100 years. A lot has happened since the beginning of the brewery academy. The technical center, which opened in 2021, shows the latest state of the art: In this new teaching and experimental brewery, 30 frequency converter and Danfoss geared motors for efficient, precise and safe operations. They are not only used in applications in the actual brewing process. Efficient and flexible drive technology also plays a central role in the conveyor technology in the bottle cellar.


By downloading the video you accept the privacy policy of YouTube.

Load video


That's how it works in the Doemens teaching and experimental brewery

From the malthouse to the brewhouse to the fermentation and storage cellar and then on to the bottle cellar with fillers, labellers and packaging, among other things, via the appropriate conveyor technology: The new technical center at the Doemens Academy maps the entire brewing process - driven by numerous geared motors and frequency frequency converters from Danfoss . Where efficient and flexible drive technology is used in the brewery and what role it plays for more energy and cost efficiency, explains Dr. Gerrit Blümelhuber from the Doemens Academy on a video tour of the new teaching and experimental brewery.

Take a virtual tour of the brewery

Energy guzzler brewery? Does not have to be! On this virtual tour (currently only available in German) through the brewery, Dr. Gerrit Blümelhuber from the Doemens Academy the different stations in the brewing process. You will learn how you can use efficient drive technology in such a way that your energy consumption and thus your energy costs are reduced. Discover how frequency frequency converters from Danfoss drive pumps, fans and other motors in the new technical center at Doemens Academy. The heart of the virtual tour is the bottle cellar, in which Danfoss frequency frequency converters and geared motors are used to transport the bottles and crates between the individual machines and units.

You can also find out what is currently moving the brewing industry in Torque - The podcast driving you. There discuss Dr. Gerrit Blumelhuber and René Grywnow of Danfoss Drives in the episode "How does a brewery quench its thirst for energy?" about new markets, new requirements, new technology and more energy efficiency in breweries. 

That's how it works: A flexible drive concept for the Doemens bottle cellar

Cans, bottles, barrels, crates: Heavy containers are moved on the conveyor belts in the brewery's bottle cellar. At the same time, the containers – especially glass bottles – are particularly sensitive goods to be transported. They must be transported efficiently, smoothly and safely. The particularly high requirements for maximum hygiene standards in the beverage and food industry must also be considered and implemented in the transport technology. In addition, it is of course always a matter of transporting containers in and between the individual units in an energy-efficient and therefore cost-efficient manner.

In the bottle cellar of the Doemens Technikum, highly efficient frequency converter combined with extremely reliable permanent magnet motors of the ultra-premium efficiency class IE5 for efficient and smooth processes. They are part of the specially developed for the beverage industry VLT® FlexConcept® from Danfoss, which offers numerous advantages.

Discover the advantages of the VLT® FlexConcept®

The VLT® FlexConcept® is used in the bottle cellar of the Doemens teaching and experimental brewery for good reasons. Among other things, it offers:

  • Maximum flexibility in system design: The Danfoss VLT® frequency converter can be installed either centrally in the control cabinet or decentrally in the system close to the motor.
  • Reduced spare parts inventory: The VLT® FlexConcept® uses only a few gear variants in connection with the same permanent magnet motor. This reduces the need for spare parts that need to be kept in stock. The highly flexible drive concept includes the PM motor VLT® OneGearDrive® and the two converter types VLT® Decentral Drive FCD 302 and VLT® AutomationDrive FC 302
  • Compliance with the strictest hygiene regulations: In order to meet the special cleaning requirements and hygiene conditions in beverage plants, the PM motors of the type VLT® OneGearDrive® have a smooth surface that offers no room for germs and other contaminants. At the same time, the durable coating that both the VLT® OneGearDrive® and the VLT® Decentral Drive FCD 302 are equipped with has been developed to withstand typical cleaning agents and processes, enabling effective cleaning without affecting plant availability.

By downloading the video you accept the privacy policy of YouTube.

Load video


The VLT® FlexConcept® in Doemens practice

Christian Prakesch from Danfoss Drives and Dr. In this video, Gerrit Blümelhuber from the Doemens Academy talk about the requirements that the transport technology places on the drive technology in the new bottle cellar of the Doemens Academy. From the desire for the highest possible energy efficiency to the possibility of high-pressure cleaning of the conveyor belts to predictive maintenance with frequency frequency converters: the two experts explain in detail which modern drive solutions be realized in the teaching and experimental brewery. That plays a central role in this VLT® FlexConcept®.

Efficiency through flexibility and intelligence in the converter

The advantage is that the VLT® FlexConcept® was developed for dry as well as wet, aseptic and hygiene-critical areas. The decentralized components are characterized, among other things, by the high degree of protection IP66/IP69K. The hermetically sealed housing and special plug connections protect against the ingress of dust and water. This enables the high-pressure or steam jet cleaning of the conveyor belts in the Doemens technical center.

In addition to the problem-free cleaning, the frequency converter can also be used for diagnostics and predictive maintenance. The frequency converters know the motors well because of the motor data and the signals they exchange with the motors. Current, torque or frequency – based on these values, the frequency converters can draw conclusions about the overall system. This makes them an essential Part of the maintenance concept and warn fbefore breakdowns or other problems. Learn more about the benefits of Condition-based monitoring in the beverage industry get them here.

The experts at the Doemens Academy are also inspired by others. For example from User Jakov Perisic from Molson Coors, a multinational brewery group that has many prominent beer and beverage brands in its portfolio. Jakov and his team have been using condition-based monitoring with frequency frequency converters for some time. His goal is not only to make repairs more efficient, but also to run the systems longer overall. In episode 11 "Condition-based Monitoring: Using data, increasing system performance" he explains how he manages to do this and what challenges he encounters in the process Torque - The podcast driving you.

New perspective: driving through the crate washer

How well do you know your Flaschenkeller? For example, have you ever driven through a crate washing machine? No? Neither do we, but we dared to take the camera through the crate washer in the Doemens Academy's teaching and experimental brewery. Now we invite you to see the Flaschenkeller with different eyes. The drive of empty beer crates is a bit like a roller coaster ride - including acceleration, quick stops and cornering. All under controlled conditions, of course. This is made possible by the drive technology used by Danfoss, which flexibly implements the requirements of the Doemens Academy.

The conveyors are powered by a Danfoss VLT® FlexConcept® solution. In this way, the beer crates are conveyed efficiently, precisely and safely through the crate washer. and wAs the name already suggests, this drive concept, specially developed for conveyor systems in the food and beverage industry, is characterized by maximum flexibility: Depending on the system design, you mount the Danfoss VLT® frequency converter centrally in the control room or close to the motor decentralized in the system. In the new technical center of the Doemens Academy, a combination of 30 type permanent magnet synchronous motors VLT® OneGearDrive®, 26 decentralized frequency frequency converters of type VLT® Decentral Drive FCD 302 and 4 installed centrally in control cabinets VLT® AutomationDrive FC302 for the efficient transport of beverage crates by the crate washing machine and the bottle cellar. 

Ultimately, it is the end result that counts: freshly washed and spruced up, the crates are ready to receive the valuable "beer bottle" and set off on the journey to the consumer.

This is what a trip through the crate washer looks like
play video

Would you like to find out more about efficient and flexible drive solutions for the beverage industry? For example, read how to use Danfoss frequency frequency converters to Increase sustainability in your system and what tremendous advantages the condition monitoring with intelligent frequency converter can bring to your business. Because come smart frequency converter used in beverage production, completely new avenues can also be explored in maintenance: proactively, risks are identified at an early stage, maintenance intervals are planned and production stops are avoided.

You can find even more tips and in-depth knowledge about the operation of separators with frequency frequency converters in this Tech Insight [link if created].

Discover Danfoss Drives