{"id":10999,"date":"2024-09-10T05:28:10","date_gmt":"2024-09-10T03:28:10","guid":{"rendered":"https:\/\/shop.ptm-mechatronics.com\/stage\/?p=10999"},"modified":"2024-11-18T10:13:05","modified_gmt":"2024-11-18T09:13:05","slug":"ptm-entwickelt-verfahrbaren-motor-fuer-mehrere-ruehrbehaelter","status":"publish","type":"post","link":"https:\/\/ptm-mechatronics.com\/en\/ptm-entwickelt-verfahrbaren-motor-fuer-mehrere-ruehrbehaelter\/","title":{"rendered":"PTM develops movable motor for multiple agitator vessels"},"content":{"rendered":"
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PTM Managing Director Carsten Angermeyer and Christian Maier from Maier Heidenheim<\/figcaption><\/figure>\n
Report from our partner Maier Heidenheim on the joint project:<\/h5>\n
Stirred and saved<\/h5>\n

PTM mechatronics has developed an efficient solution for companies that have to stir liquids in a large number of containers under Atex conditions. Instead of one agitator per container, a movable air motor is installed that grips the individual agitator rods. This cost-saving innovation was made possible thanks to the support of the rotating union specialist Christian Maier.<\/p>\n

Anyone visiting PTM mechatronics GmbH in Egenhofen will find themselves in the tranquil countryside between Augsburg and Munich. But idyll and innovation are not mutually exclusive here - after all, the company, which was founded in 1988, is one of the world's most sought-after specialist suppliers when it comes to air motors and grippers for use in special environments. Pneumatic motors for use in potentially explosive areas, for example in the production of chemicals and paints, seawater-resistant drives for use on drilling platforms or in diving equipment, stainless steel motors for agitators in food production and grippers for various applications from robots to clean rooms: PTM mechatronics\u201e products and solutions enjoy a first-class reputation in all these market niches. \u201cThe main advantages of air motors over electric motors are that there are no sparks and the material can be optimally adapted to the requirements of the application,\" explains Carsten Angermeyer, owner and Managing Director of PTM mechatronics.<\/p>\n

Radial piston motor for use in explosion-proof stirring<\/h5>\n

One of the company's special features is its motor technology: instead of vane motors, PTM mechatronics uses air motors with radial pistons, which are arranged around the drive shaft in a similar way to a radial motor and are set in rotation via a rotary vane control. This design offers the user two significant advantages: high torques can be achieved even at low speeds, and compressed air consumption is up to 90 percent lower compared to vane motors. \u201eOur radial piston motors really come into their own with agitators in explosion-proof environments,\u201c says Angermeyer. The powerful torque also enables the stirring of more viscous substances, and the low compressed air consumption leads to high savings in energy costs when frequently used continuously.
\nCompanies often store a large number of liquid containers that need to be stirred at intervals - for example when mixing paints, chemicals or fragrances. In such cases, the purchase of a complete agitator for each container would be disproportionately expensive for the company. PTM mechatronics developed an efficient concept based on a customer project that had precisely this constellation: a single motor was to be used, mounted on an automatically movable device and equipped with a pneumatic three-jaw gripper on the drive shaft. The motor positions itself alternately above a container, grips the stirring rod suspended in it, mixes the liquid over a specified period of time and then moves on to the next container.<\/p>\n

Rotary feed-through enables power transmission to rotating gripper<\/h5>\n

This presented PTM mechatronics with a tricky task: because the rotating gripper is attached to the drive shaft, the compressed air had to be fed into the rotating hollow shaft via a valve on the fixed shaft housing. A rotary union is required for this purpose - a technically demanding product that Christian Maier GmbH & Co. KG in Heidenheim in southern Germany specializes in developing and manufacturing.
\n\u201eIn view of the technical conditions, it quickly became clear that no standard solution was an option here,\u201c recalls Florian Maier, Managing Director of Christian Maier. While the specifications for the motor geometry could be implemented with design adjustments, greater effort was required for use in explosion-proof environments. Only the use of devices with Atex certification is permitted there, which is only granted after the successful completion of extensive test series.
\nAfter an initial prototype showed that the interaction between the Maier rotary union and the motors and gripper unit from PTM worked, the conformity assessment procedure was initiated at Christian Maier.
\n\u201eAs we already have Atex-certified rotating unions in our product range, we were able to draw on existing experience,\u201c reports Florian Maier.<\/p>\n

Successful Atex certification<\/h5>\n

Extensive tests had to be carried out to ensure and document that the rotating union does not cause overheating or sparks. Specifically, this meant temperature class T3 in Atex category 2G:
\nChristian Maier had to make the design so safe that the surface temperature of the rotating union would never exceed 200 degrees Celsius minus a safety margin. \u201eThis limit also applies to extreme situations when foreseeable faults occur,\u201c says Florian Maier.
\nUsing temperature sensors, appropriate tests were carried out and, among other things, bearing damage was deliberately caused in order to determine the temperature behavior of the rotating union. The result: even under the most unfavorable conditions, the surface temperature of the component remained well below the critical range. This cleared the way for the documents and protocols to be submitted to T\u00dcV S\u00fcd, which then issued a safety assessment and Atex approval for the rotating union.<\/p>\n

Friction losses minimized<\/h5>\n

The ratio of tightness to friction losses was also optimized as part of the tests. Although a high contact pressure on the seal leads to maximum tightness, it increases the running resistance of the shaft within the rotary union. Springs were used to adjust the contact pressure of the seal in such a way that the frictional resistance and thus the energy consumption was reduced to a minimum while maintaining the sealing function.
\nWith the combination of air motor, rotary union and three-jaw gripper, PTM mechatronics now has an efficient concept for companies that previously either had to invest in a large number of agitators or had to manage the changing use of individual agitators by hand in a less economical way. \u201eOur solution opens up the possibility of automating the mixing of 20, 50 or even more containers,\u201c says PTM Managing Director Carsten Angermeyer, summarizing the advantages. Thanks to Atex certification, the systems can also be installed in chemical or paint production without any problems.<\/p>\n

Transfer of the concept to other sectors<\/h5>\n

Following the positive response from initial projects, the inventors at PTM mechatronics and Christian Maier are already thinking one step ahead. Similar constellations, in which liquids have to be stirred in a large number of containers, can also be found in the food industry - for example in the production of dairy products or beverages.
\n\u201eHere, agitators usually have to meet the FDA standard for contact with food, which can be achieved very well with compressed air drives,\u201c says Carsten Angermeyer. The good cooperation with Christian Maier can then be extended to FDA-approved assemblies in the future if required.<\/p>","protected":false},"excerpt":{"rendered":"

Bericht unseres Partners Maier Heidenheim \u00fcber das gemeinsame Projekt: Ger\u00fchrt und gespart PTM mechatronics hat eine rationelle L\u00f6sung f\u00fcr Betriebe entwickelt, die unter Atex-Bedingungen Fl\u00fcssigkeiten in einer Vielzahl an Beh\u00e4ltern r\u00fchren m\u00fcssen. Statt eines R\u00fchrwerks pro Beh\u00e4lter wird ein verfahrbarer Druckluftmotor installiert, der sich die einzelnen R\u00fchrst\u00e4be greift. Erm\u00f6glicht wurde die kostensparende Innovation durch die […]\n","protected":false},"author":51,"featured_media":11001,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[2198,2243],"tags":[2210,2231,2240,2199,2241,2242,2232,2234,2237,2217,2224,2244],"class_list":["post-10999","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-anwenderbericht","category-ruehrwerkstechnik","tag-atex","tag-behaelter","tag-drehdurchfuehrung","tag-druckluftmotor","tag-effizienz","tag-entwicklung","tag-farbe","tag-lack","tag-lackruehren","tag-ruehrwerk","tag-ruehrwerkstechnik","tag-sonderloesung"],"acf":[],"_links":{"self":[{"href":"https:\/\/ptm-mechatronics.com\/en\/wp-json\/wp\/v2\/posts\/10999","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ptm-mechatronics.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ptm-mechatronics.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ptm-mechatronics.com\/en\/wp-json\/wp\/v2\/users\/51"}],"replies":[{"embeddable":true,"href":"https:\/\/ptm-mechatronics.com\/en\/wp-json\/wp\/v2\/comments?post=10999"}],"version-history":[{"count":1,"href":"https:\/\/ptm-mechatronics.com\/en\/wp-json\/wp\/v2\/posts\/10999\/revisions"}],"predecessor-version":[{"id":12523,"href":"https:\/\/ptm-mechatronics.com\/en\/wp-json\/wp\/v2\/posts\/10999\/revisions\/12523"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ptm-mechatronics.com\/en\/wp-json\/wp\/v2\/media\/11001"}],"wp:attachment":[{"href":"https:\/\/ptm-mechatronics.com\/en\/wp-json\/wp\/v2\/media?parent=10999"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ptm-mechatronics.com\/en\/wp-json\/wp\/v2\/categories?post=10999"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ptm-mechatronics.com\/en\/wp-json\/wp\/v2\/tags?post=10999"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}