Rohmann GmbH

    About us

    ROHMANN is a leading German manufacturer of eddy current testing equipment and systems for non-destructive materials testing (NDT). For more than 40 years we have been developing, producing and marketing our technology as a medium-sized family owned company based in Frankenthal, Germany. Today, our testing equipment and systems are used worldwide in crack, heat treatment, material mix-up and grinding burn testing. We are proud to count leading companies from the aviation, automotive, rail, energy (power plants, renewable energies) and steel industries among our esteemed customers.

    Research is the investment in our future.

    We develop smart solutions for new tasks and innovative solutions for existing tasks – the results are outstanding reliability, improved performance, higher speed and cost-effectiveness of your test equipment. We focus on interdisciplinary cooperation with leading laboratories, technology partners and departments of applied research.

    Customer satisfaction is our key to success.
    Our strongest motivation is the satisfaction of our clients. A complete understanding of specific customer needs and tailor-made products and services are a part of our philosophy. That is why we always seek dialogue and request “feedback”. Our aim is to meet the increasing customer expectations to their fullest satisfaction through permanent product adaptations and perfect service.

    Quality is the hallmark of our work.
    Our efficient quality management system has been certified according to DIN EN 9001 since 1999. This enables us to meet the highest international standards. We focus on the continuous improvement of our employees’ qualifications, the further development of all quality processes and the permanent optimisation of all our technical facilities.

    Our story is our experience

    • 1977
      Foundation of Rohmann GmbH by Jürgen Rohmann.
    • 1977
      ROHMANN launches the ROTOTEST B500, the world's first battery-powered rotating sensor tester with screen.
    • 1987
      With the ELOTEST B1, a battery-powered universal eddy current tester for manual testing of safety-relevant components in the aerospace industry, Rohmann is setting new international standards in eddy current testing.
    • 1989
      With the ELOTEST PL.1, ROHMANN successfully entered line testing.
    • 1999
      The HARMONIC 2000, the first fully digital high performance tester, was developed for heat exchange testing in collaboration with Framatome.
    • 1999
      With the ELOTEST M2, ROHMANN develops and markets the world's most powerful and lightest genuine one-hand test instrument.
    • 2000
      With the ELOTEST B300, ROHMANN launches the third generation of battery-powered eddy current testers and at the same time the ELOTEST PL300.
    • 2006
      Foundation of the subsidiary Rohmann LP in Spartanburg SC, USA, which continues the business of Rohmann Inc. very successfully to this day.
    • 2007
      Generation change in the management of Rohmann GmbH.
    • 2008
      The ELOTEST M3 is offered in parallel with the ELOTEST M2 and thus expands the product range of portable test instruments.
    • 2009
      Move into the new company building with over 6000 sqm of office and production space as well as reserve space for future growth.
    • 2014
      ROHMANN opens a new business segment in the field of heavy plate testing and patents the so-called Eddy+ process.
    • 2016
      The ELOTEST PL600 as the world's most powerful eddy current testing instrument is presented to the public and breaks new ground with a novel operating concept.
    • 2017
      Rohmann GmbH celebrates its 40th anniversary.

    Career at ROHMANN?

    We are always on the lookout for talented and ambitious employees who bring a breath of fresh air, new perspectives and innovative ideas. Become part of the ROHMANN family and discover opportunities and new challenges with us. On this page we inform you about ROHMANN and our current vacancies.

    find out more

    We are a team of very creative and highly specialized people. We have learned to not only comprehend things, but above all to question them with the aim of developing software solutions for every project and every challenge. Our software specialists work with a very advanced product. Our challenge is to meet the individual product requirements of our customers again and again.

    Jörg Keymer, Software Developer at ROHMANN

    As a family-owned company we work in small teams. Each individual is in charge right from the start and, according to his or her expertise, is responsible for a wide range of tasks. Therefore, the learning curve is steep for everyone in the team. We always work cross-departementally and benefit from the most modern hardware and software – but most of all from each other. Our R&D department is the heart of ROHMANN. Working with us means always facing new challenges in eddy current testing.

    Dr. Aschwin Gopalan, Head of Development at ROHMANN

    I have been working in sales at Rohmann for more than 15 years and have expanded my area of responsibility over the years. At ROHMANN there is no working according to standard scheme, because no ( testing ) task is like another. That is the reason why we often develop customer-specific solutions. Each of these technical challenges is also a personal opportunity for me to grow professionally. Working in an international business environment I find very inspiring. We offer our test equipment, systems and special solutions worldwide and work closely with our international sales partners on all continents.

    Jürgen Lauer, Head of Sales at ROHMANN

    ROHMANN in the press


    What’s new at ROHMANN? Would you like to know more about us, our products and our company? Then we welcome you to inform yourself about the latest press reports and press releases of Rohmann GmbH.

    Press releases

    28 Sep 2020
    ELOTEST PL600 R + RC

    Addition to the “ELOTEST PL600” family of instruments for non-destructive materials testing Eddy current testing instrument of the latest generation from Rohmann GmbH

    “ELOTEST PL600” is the latest development from Rohmann. The family business in Frankenthal in Germany has been developing and marketing eddy current testing instruments and accessories for non-destructive materials testing for 43 years now. ELOTEST PL600, a digital testing instrument of the latest generation, makes it possible to carry out all types of eddy current testing. It is designed for testing for cracks and heat treatment as well as for testing for material mix-up and grinding burn.
    28 Sep 2020
    Rolling elements

    Combined testing for cracks and grinding burns on bearing rings and rolling elements with a single sensor and a sensor array

    Contact free, quick, high-resolution and efficient

    In addition to the solutions for various tasks requested by industry, testing for cracks and grinding burns on bearing rings and rolling elements is a current issue. These client requirements can be addressed in a semi- and also a fully automated manner. Depending on the testing task, single sensors or sensor arrays can be used.
    28 Sep 2020

    Rohmann “EloWheel” wheel rim inspection system for non-destructive testing

    Eddy current testing systems used in MRO all over the world

    Eddy current test instruments and systems manufactured by Rohmann are used in most varied branches of industry worldwide. Test instruments can be used for all types of industries, but test systems are usually designed for the inspection of a specific test piece. EloWheel, developed by Rohmann for the inspection of aircraft wheel rims, has been used in the wheel shops of renowned MRO companies all over the world for almost four decades now. A success story, which continues up to the present day and which Rohmann wishes to pursue with the latest version of the inspection system. High quality components, a solid steel frame structure and the newest Rohmann test instrument – ELOTEST PL600 – are applied. In the design of the system, we have attached great importance to the safety of the user.
    28 Sep 2020
    Draisine WPG D340

    Eddy current testing instrument for track inspection for global use The Rohmann trolley is suitable for different track gauges  
    The WPG D340 trolley brings eddy current onto the rail, so they say at Rohmann GmbH, based in Frankenthal, Germany. The specialist in non-destructive testing now supplies this successful product all over the world. While the trolley has so far been manufactured individually for different track gauges, Rohmann GmbH now offers an adjustable version in addition, for a more universal use with track gauges from 1,400 to 1,700 mm. This may not only please the railway companies, but also their service partners who maintain the tracks. A trolley that has been manufactured for the German track system can now also be used for the inspection of rails abroad, which of course saves costs.
    07 Aug 2020
    Rohmann GmbH presents its new agency in Turkey

    Eddy current testing instruments for non-destructive material testing

    Rohmann GmbH develops and manufactures eddy current testing instruments and systems in Frankenthal, in the German Palatinate. These instruments and systems are directly marketed either by the headquarters of the company or by sales agencies covering almost the entire globe from Canada to New Zealand. Since June 1st 2020, CRD End. Kontr. Sis. San. Tic. Ltd. ?ti., located in Istanbul, has become part of the global sales network of Rohmann. Mr Serkan Kiliçaslan, managing director and owner of CRD, is a physics engineer and like his employees has extensive experience in non-destructive testing. Rohmann GmbH is pleased to have been able to recruit Mr Kiliçaslan as its new representative for the Turkish market. With his company founded in 2011, Mr Kiliçaslan has already made a name for himself in the field of industrial quality control and the application of different methods of non?destructive material testing. Rohmann eddy current instruments for manual and in-line testing have been used for many years by renowned companies in the aviation, automobile and steel industries in Turkey. By working with CRD, Rohmann is now providing a contact for local companies, who is not only able to offer the implementation of eddy current testing in the manufacturing process or final quality control, but also the development of customized solutions together with Rohmann.
    07 Aug 2020
    New Eddy Current Test Instruments for the Training Center of the German Society for Non Destructive Testing (DGZfP) in Magdeburg
    For years Rohmann GmbH has been working closely with training institutions. This has ranged from common research projects with universities in the field of non-destructive testing by eddy current up to visits from apprentices and university students at our headquarters in Frankenthal. It is important for us to demonstrate the diversity of testing tasks and solutions with eddy current using practical examples and to arouse interest in non-destructive testing. On February 19, 2020, together with Thomas Schwabe and Jürgen Lauer, Petra Rohmann, managing director of Rohmann GmbH, visited the Training Center of the DGZfP in Magdeburg. She brought two new ELOTEST PL600 eddy current testing instruments with her. Petra Rohmann appreciates the work of the DGZfP and was happy to support the training center by loaning two inline testing instruments to them. Holger Nowak, DGZfP head of the department for eddy current testing in Magdeburg, accepted the instruments with thanks. The visit was concluded by a short briefing on the use of the instruments.
    07 Aug 2020
    Eddy Current Test Instruments from Rohmann
    Rohmann GmbH is expanding its network of global agencies by cooperating with the consulting engineers for material sciences IB Winkler based in Laakirchen (Austria). Since April 2020, Karl Winkler-Ebner, engineer, has become the new contact person for our clients in Austria, who have so far been served directly by our headquarters in Frankenthal (Germany). Rohmann GmbH develop and manufacture eddy current testing instruments and systems in Germany, and a most extensive variety of industries use these instruments and systems all over the world. We are pleased to have found in Mr Winkler?Ebner, a sales partner with extensive experience in non?destructive testing. We believe that our clients in Austria will be very well served by Mr Winkler-Ebner with his knowledge of materials, his 35 years of working in NDT and Advanced NDT for plant operators in testing and damage analysis, for constructors of industrial plants, audit and inspection companies like TÜV Süd and TÜV Austria as well as with the work in his own company. Through his experience, Mr Winkler-Ebner is able to provide the optimal comprehension of a vast range of requirements to be met by the materials testing and the conception of customized solutions. Based on his experience from his work for audit and inspection companies, he is very much aware of the high priority attached by individual business companies to quality assurance and will be able to provide the best support to our Austrian clients.
    12 Sep 2017
    Specialists for special tasks
    When a six-cylinder engine is installed at BMW, the materials used for it have most likely been tested with a device from Frankenthal. Rohmann GmbH is one of Germany's leading companies in the field of non-destructive material testing. The company, which is located in the Gewerbepark Nord, is celebrating its 40th anniversary and provides an insight into everyday working life.
    Author: Jörg Schmihing Source: Die Rheinpfalz
    20 Mar 2017
    From Frankenthal to the world
    They are one the world's leading manufacturers of Equipment, facilities and systems for non-destructive material testing using eddy current methods: Rohmann GmbH with its headquarters in Frankenthal. This year it is celebrating its 40th anniversary - in June it will be celebrated. Bolts of all sizes and shapes, small balls and pins, tubes, camshafts, entire engine blocks, railway tracks, but also joint prostheses can be seen in several showcases in the foyer of the company headquarters, where all products for which Rohmann GmbH offers testing equipment are on display.
    Source: Wirtschaftsmagazin IHK Pfalz
    07 Dec 2013
    Innovation Award Minister Lemke honours Rohmann
    Frankenthaler Rohmann GmbH has received the Rhineland-Palatinate Innovation Award in the "Company" category for an eddy current testing device for detecting material fatigue in railway rails.
    Source: Die Rheinpfalz
    26 Sep 2013
    Mobile rail processing using rotary planer on railway tracks and at switches
    However, efficiency in switch processing also results from joint preliminary acceptance of the switches by the customer and contractor. This includes determining the geometric conditions and checking the material-side damage to the switch, determining the processing lengths A, B and C after the beginning and end of the switch, deriving the construction requirements and determining the processing time separately for main and side track. Proof of the HC-free condition of machined rails Similar to the grinding and milling machines and the planer, the D-HOB 2500 is also currently equipped with eddy current testing technology. The test system developed by the companies Rohmann GmbH, Frankenthal and Mevert Maschinenbau GmbH, Lauenhagen with the cooperation of Schweerbau consists of - one sensor carrier per rail, - two test sensors per sensor carrier, - an industrial eddy current tester type Elotest PL500, - a data server PC, - a terminal PC with visualization software and printer. The sensor carriers can be lowered and raised during the machining process. They position themselves automatically, are guided along the running edge and are suitable for soft ground. The inspection is carried out in the tracks 9.2 mm and 17.9 mm from the running edge. The maximum test speed is 20 km/h. The testing devices are calibrated on workdays according to customer specifications.
    Author: Dr.-Ing. Dieter Hartleben Source: EI Eisenbahningenieur
    15 Jan 2011
    Non-destructive testing with eddy current – parts and components of turbochargers
    Parts and components of turbochargers are exposed to the highest loads during operation. The turbocharged engines used today are dependent on the operation of high-precision and reliable turbocharging technology at low displacement and high speeds.  A component that is subject to particularly high stress is the so-called compressor wheel (Fig. 1, red frame). One of the most highly stressed zones of these compressor wheels is in the area of the central bore, which connects the wheel with the shaft of the turbocharger (Fig. 2; red frame). After a damage case in which a breakage of the wheel in this critical area led to the failure of the turbocharger, a test procedure using eddy current technology was developed in cooperation with Rohmann GmbH. The publication of the article was made possible by close cooperation with Mrs. Dipl.-Ing. Angela Au (Head of Materials Engineering; PRÄWEST) and Mr. Dipl.-Wi. Stephan Reich (Head of Quality Assurance; PRAE-TURBO GmbH & Co.KG)
    Author: Alexander Maltry Source: IN-Cert
    05 Jan 2011
    Fascinating eddy current testing tasks and solutions
    The company Rohmann GmbH had invited both working groups to their new headquarters in Frankenthal for the 299th meeting of the Mannheim/Ludwigshafen working group and the 246th meeting of the Frankfurt working group. The 37 participants were warmly welcomed in the company building, which was newly constructed in 2009. In the introductory lecture an innovative leading and worldwide represented company was presented, which was founded in 1977 by Jürgen Rohmann with two employees and is today managed by his daughter Petra Rohmann in second generation. Research, development and production of eddy current testing devices for manual testing up to tailor-made testing systems for serial testing are the tasks of the company.  
    Author: Uwe Salecker Source: ZfP Zeitung
    16 Feb 2010
    Non-destructive material testing with eddy current
    Rohmann GmbH in Frankenthal stands for more than three decades of experience in non-destructive materials testing, specialization in eddy current testing technology and as a supplier of trend-setting equipment technology. After moving into an architectual innovative new building in January 2009, the family-owned company has again delivered several fully automated robot testing systems to major international customers in the aviation industry.
    Source: Wirtschaftsmagazin IHK Pfalz
    17 May 2009
    Digital eddy current testing ten times faster
    Eddy current methods are not always fast enough for high speed non-destructive testing applications. Digital instrumentation technology from Rohmann, Frankenthal, Germany, is capable of breaking the previous speed limit. As a result, high-resolution testing at the highest speeds is now possible with just one single device.
    26 Oct 2008
    Rohmann moves in the Gewerbepark Nord
    Frankenthal-based Rohmann GmbH, manufacturer of eddy current testing equipment and systems, is about to move: In October 2008, the company, which employs 65 people, plans to move its headquarters from Rudolf-Diesel-Strasse to a new building in the Gewerbepark Nord. Managing partner Jürgen Rohmann estimates the cost of the investment (including the purchase of land) at 8 million euros. The business with eddy current testing technology has developed very positively, especially in recent years. In 2007, the highly profitable family company reported a profit after tax of 1.5 million euros on sales of around 8 million euros; 2008 is expected to be a similar success. Rohmann considers itself one of the leading manufacturers in the industry with its special technology, which is in great demand, particularly in aviation and among car manufacturers for the testing of materials.
    Source: Die Rheinpfalz
    08 Jul 2008
    Rail inspection at speed 200 km/h
    Frankenthal-based Rohmann GmbH plans to market a new analysis technology worldwide and has identified a large market for this technology. The company's CEO Jürgen Rohmann announced that the company will initially equip a test train of the Bahn AG with the new so-called scor technology. The company will then market the method worldwide. The durability of tracks is estimated at 30 to 50 years; the demand for reliable testing technology is high. "Non-destructive materials testing" is what Rohmann's equipment makes possible. Eddy current testing technology can be used to examine all electrically conductive and at the same time magnetized materials. For this purpose, the test object is exposed to the effect of an electromagnetic alternating field.
    13 Feb 2008
    Flight Safety “Made in Frankenthal”, above and below the clouds
    "Above the clouds, freedom must be boundless." To ensure that this feeling, poetically formulated by Reinhard Mey, can be enjoyed carefree by passengers all over the world, a Frankenthal-based company has played a major role in the process. Rohmann GmbH manufactures eddy current testing equipment and systems that are used to test the functionality of aircraft parts, as well as other components. Well-known airlines all over the world now adorn the Rohmann customer list. The company is also renowned as a developer. Funded by the German government, Rohmann has been entrusted with the overall responsibility for the project "Non-destructive testing of aircraft parts using SQUID". SQUIDs are the most sensitive magnetic sensors available in the world. Renowned partners in the "SQUID" project are the Jülich Research Centre, the University of Gießen, the Institute of Air and Refrigeration Engineering Dresden, Lufthansa Technik AG and Daimler-Benz Aerospace Airbus GmbH.  
    Source: Die Rheinpfalz
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