Quality meets quality: technotrans cooling solution for Miele injection moulding processes
(PresseBox) - Miele stands for quality. This is also reflected by Miele''s slogan in German "Immer Besser", which literally translates to "always better" or "better and better". The company has worked hard to earn their reputation over several decades. Customers benefit from this by way of reliable and durable products. In order to meet the strict quality standards the company sets for itself, it relies on innovative production technologies. For example, Miele uses a special dry cooling solution made by Reisner Cooling Solutions, a company of the technotrans group, for cooling the hydraulic systems at their Warendorf location.
The investment at the Warendorf location, the so-called "Technology Center Plastics" became necessary when the old closed system with a hybrid evaporative cooler was reaching the end of its service life after 25 years. The new solution can provide 30
In the old Miele system, the water had direct contact with the ambient air, resulting in a strong contamination of the prepared make-up water. This contamination is due to the fact that the cooling principle of this system is based on evaporation, thereby leading to a continuous loss of water. In addition, the circulating water had to be filtered and conditioned with water additives in a rather complex process. The whole situation required extensive monitoring due to an increased risk of contamination, e.g. with legionella and other bacteria which, in turn, required extensive maintenance.
Closed free cooling systems, which release heat into the environment by way of an air/water heat exchanger, are an alternative to open cooling systems. These systems come within about 5 Kelvin of the outside temperature. This means that if a water feed flow temperature of 30
A special feature of the new Reisner solution is its combination with a pad system which enables cooling at high ambient temperatures thanks to moistened honeycombs. As a result, Miele not only saves time and money, but also meets its own demand for high-quality solutions. Alexander Wibe, head of production engineering, says: "We were looking for an energy-saving solution that leaves nothing to be desired in terms of our technical requirements. The cooling system had to be of excellent quality and include components of renowned suppliers. A reliable and efficient low-maintenance solution with 24/7 customer support in the event of malfunctions ? that is the package that we were trying to find."
The Warendorf location supplies all of the Miele production sites. Its product portfolio includes complex assemblies such as washing machine doors or dryer screens, multi-component parts and parts with high-gloss surfaces, e.g. the outer shells of vacuum cleaners. 60% of the plastic parts used at Miele production sites are made in Warendorf. In addition, the facility, which was founded in 1975 and has a workforce of approximately 300 persons, supports and assists the Miele plastic part production sites in Uni?ov (Czech Republic), Dongguan (China) and Ksawer
The decision in favour of Reisner was easy: "Reisner offered the best package ? from their technology up to their extensive service offer," says Wibe. During the straightforward and highly customer-focused planning phase, the Reisner project team explained the customised solution it was envisioning.
Close partnership and a customised solution
The solution stands out due to the closed system incorporating a V-shaped, self-draining free cooler. The honeycomb structure of the pad system will only be moistened with tap water when this is necessary due to high outside temperatures of 25
"The decisive factor here is that the spraying water does not come into contact with the heat exchanger," explains G"The heat is dissipated nearly completely through the air so that Miele now has a reliable and cost-efficient cooling solution," adds Sareyko. The special design enables a considerable reduction of the operating costs.
The new system offers a cooling capacity of up to 500 as important as a minimised water consumption and the use of durable materials.
Optimum solution
"The cost-saving effect for Miele not only results from the special design. The components themselves save a lot of energy," is the Reisner motto. The fail-safe double-pump system with a volumetric flow rate of up to 87 during every step of the process.
The system has been in use since October 2020 and Alexander Wibe is more than satisfied: "The fast turnaround and the fact that we were able to integrate the system into our running production without having to resort to renting interim cooling solutions were a big plus. Reisner is always reliable and provides clean solutions that continually exceed our expectations." The company also handled the provision of the control cabinet in line with the Miele specifications and stood out due to the uncomplicated communication throughout the entire project.
Alexander Wibe is not yet able to precisely quantify the cost and time savings. However, he is very optimistic after the first phase. "We noticed early on that the energy consumption has drastically decreased. The system is extremely reliable and we were able to completely forgo the use of chemicals.
Further optimisation based on full-flow filtration
Miele''s high standards are also reflected in the decision to use an additional filter solution and chemical-free water preparation system. After a very brief period of use, the water preparation system, including a full-flow filtration solution in the return flow, resulted in steadily improving water quality. The system dissolves lime and corrosion compounds by way of low-frequency electromagnetic fields. Then, they can be filtered out of the water. "Miele stands for quality. This why we are very happy to contribute to this image thanks to our cooling competence," says G
technotrans SE is global technology and service group with its headquarters in Sassenberg in the German Mts worldwide. technotrans SE is active in the plastics sector, energy management field (including electromobility solutions, high-power charging stations and data centre applications), health care and analytics sector, printing industry as well as the laser and machine tools sector. In addition, tecH and Reisner Cooling Solutions GmbH - are unified under the technotrans umbrella brand. An exception is gds GmbH, with its headquarters in Sassenberg, as a full service supplier of technical documentation services which will remain a separate brand within the group of companies. technotrans SE is listed on the Prime Standard segment (ISIN: DE000A0XYGA7 / WKN: A0X YGA) and has a global workforce of more than 1,400 employees. In the 2020 financial year, the group reached a turnover of 190.5 million euros.
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technotrans SE is global technology and service group with its headquarters in Sassenberg in the German Münsterland region. Its application-specific thermal management solutions are the core competence of the company. This also includes the energetic optimisation and control of the temperature of sophisticated technological applications. With 17 sites, the company has a presence in all the major markets worldwide. technotrans SE is active in the plastics sector, energy management field (including electromobility solutions, high-power charging stations and data centre applications), health care and analytics sector, printing industry as well as the laser and machine tools sector. In addition, technotrans offers a wide range of services including, for example, construction site installations, maintenance, repairs and 24/7 spare parts supply. As of 2021, the individual companies of the group - technotrans SE, gwk Gesellschaft für Wärme Kältetechnik mbH, termotek GmbH, klh Kältetechnik GmbH and Reisner Cooling Solutions GmbH - are unified under the technotrans umbrella brand. An exception is gds GmbH, with its headquarters in Sassenberg, as a full service supplier of technical documentation services which will remain a separate brand within the group of companies. technotrans SE is listed on the Prime Standard segment (ISIN: DE000A0XYGA7 / WKN: A0X YGA) and has a global workforce of more than 1,400 employees. In the 2020 financial year, the group reached a turnover of 190.5 million euros.
Datum: 27.05.2021 - 11:04 Uhr
Sprache: Deutsch
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