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26-730: Dellner was founded in 1941 by the Swedish engineer Jan Dellner. The first customer was Swedish State Railways , for whom the Engineering Bureau Dellner produced automatic couplers. In the following years, the company, based in the small town of Vika in central Sweden , expanded its business and supplied automatic couplers to numerous customers in Europe, such as the Paris Metro , SNCF , Rome Metro and Italian State Railways . In 1960, Dellner changed its corporate strategy and focused solely on

52-403: A long tradition of researching and developing technologies related to couplers and, later, complete train connection systems. From the beginning, the company began adapting types of train couplers to the requirements of different passenger trains. Today, Dellner manufactures all commercially available couplers for passenger trains – from semi-permanent couplers to fully automatic couplers based on

78-714: A subsidiary of the Spanish train and bus producer Construcciones y Auxiliar de Ferrocarriles . Dellner Couplers AB has been based in Vika, Sweden, since the company was founded in 1941. The international management team including CEO Peter Woxblom, CFO Thomas Leander and COO Stephan Weng as well as many global business units such as Sales, HR, Dellner Service, R&D, Finance, Quality or Procurement are located here. Dellner has production and service facilities in India, Poland, Sweden, France, Germany, Italy, China, Australia, Brazil, Argentina, Singapore,

104-468: Is generally restricted to mass transit systems. The Schaku is superior in many ways to the AAR (Janney/knuckle) coupler because it also automates electrical and pneumatic connections and disconnections. However, there is no standard for the placement of these electro-pneumatic connections. Some rail operators have placed them on the sides while others have placed them either below or above the mechanical portion of

130-631: Is represented in India by a total of 170 employees at two locations: a service center for couplers and gangways is located in Noida in the state of Uttar Pradesh, and Dellner has a production facility for gangways and couplers in Mevalurkuppam near the southern Indian port city of Chennai. A further production facility is located in Swadlincote in South Derbyshire, England, where around 165 employees work on

156-558: Is the Chinese state-owned CRRC Group, for whom Dellner provides new couplers on the Chinese domestic market and the CRRC overseas markets as well as operators and maintainers in several cities, for whom Dellner delivers services for train connection systems. Dellner Dampers AB specialises in customised dampers and is based in the small town of Flen in Södermanland County, Sweden. Dellner has

182-614: The Royal Railway Board ( Swedish : Kungl. Järnvägsstyrelsen ), was the former government agency responsible for operating the state-owned railways in Sweden . It was created in 1887 as an agency belonging to the Ministry for Civil Service Affairs , with the task of managing all state-owned railway lines in Sweden, and was transferred to the Ministry of Communications in 1920. In 1988,

208-596: The Scharfenberg coupler principle, Tomlinson couplers and SA3 couplers. Dellner has also developed its own type of coupler head, the automatic coupler type 12. Dellner has also made a name for itself with the modular design of train couplers, and the development of a crash energy management system for passenger trains. Dellner has been a member of the Shift2Rail initiative and the European Union's DAC Delivery Program for

234-710: The Scandinavian and North American markets. In the following years, the company expanded into automatic couplers under the name AB Dellner Malmco in Scandinavia. At the same time, a subsidiary was established in North America. At the beginning of the 1980s, the company had around 90 employees working at its Swedish headquarters in Vika and in subsidiaries in the USA and Canada. A turning point in Dellner's corporate history came in 1983, when

260-611: The United Kingdom and the USA. The main subsidiaries of Dellner Couplers are: Since its foundation in 1997, Dellner Poland has developed as the largest production facility for automatic couplers within the Dellner companies. Dellner employs around 370 people locally at its plant in Miszewko near the port city of Gdynia. In addition to the production and final assembly of couplers, Poland also serves as Dellner's distribution center for various Eastern and Southern European countries. Dellner

286-626: The coming years. As part of that program, Dellner developed a digital automatic coupler in accordance with the DAC-4 standard, as well as a hybrid coupler for locomotives that can be used to simply convert old freight train fleets to the new technology. As a member of the European Union's DAC Delivery Program, Dellner is also working on the development of a digital coupler according to the DAC-5 standard. Swedish State Railways The Swedish State Railways ( Swedish : Statens Järnvägar ) or SJ , originally

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312-528: The companies Dellner Brakes, Dellner Woodville and Pintsch Bubenzer (50 percent). In June 2019, the Swedish private equity firm EQT acquired Dellner Couplers AB, together with its global subsidiaries including Dellner Dampers AB from Dellner Invest. These two companies now operate under the Dellner Couplers brand. Since then, the remaining companies of the parent holding company Dellner Invest (as well as some newly created companies) have been operating under

338-488: The company realigned its business strategy to supply train manufacturers and railway operators around the world with automatic train couplers. That decision marked the beginning of Dellner's gradual expansion as a global supplier of train coupling systems. In recent years, the company has responded to the changing requirements of the rail industry. All over the world, increasing numbers of passenger trains have been developed which travel at ever higher speeds. That trend has made

364-452: The countries of the former Warsaw Pact. After 1997, Poland became an important location for Dellner, with a branch in Gdynia at which an increasing amount of production capacity was created in subsequent years. In 2003, the holding company Dellner Invest acquired a Swedish company called Precima, a specialist in dampers and buffers for trains and other industrial applications. The Precima business

390-521: The coupler. The face of the Scharfenberg coupler has a protruding cone and a matching cup. Inside the cone there is a rigid metal hoop connected to a revolving, spring-loaded metal disk with a notch on the opposite side. When ready to couple, the spring turns the disk so the hoop is extended from the cone. As the cars meet, the hoop enters the cup on the other coupler, stopping against the disk. The hoops are then pressed back into their own coupler, causing

416-746: The development and production of gangways for the international market. In addition, the site is also responsible for the overhaul of couplers and gangways for the UK market. Dellner has been active in the USA since the 1960s. Since 2012, the company has been operating under the name Dellner Inc. with two locations in Charlotte, North Carolina, and Roseville, California, with over 40 employees. Dellner USA offers sales and service activities for rail customers in North America. In China, Dellner has around 90 employees at its two locations in Shanghai and Wuhan. Dellner China's customer

442-451: The development of a digital automatic coupler for freight trains since 2020. The European Union's DAC Delivery Program has set itself the objective of modernising and standardising the couplers used in freight train fleets across the EU to make the coupling of freight trains safer and faster. To this end, all 400,000–450,000 freight wagons in Europe are to be equipped with fully automatic couplers in

468-399: The disks to rotate until the notches align with the hoops. After the hoops have entered, the notches on the disks spring back into the hoop extended position, locking the coupling. In the coupled position, forces on the hoops and disk will balance out, which means that the Scharfenberg, unlike many other couplers, is not dependent on heavy latches to stay locked. Small air cylinders, acting on

494-429: The latter four being privatized: Some of them have been sold to other companies, but SJ AB, Green Cargo and Jernhusen are still fully government owned (as of January 2024). Apart from these companies, Statens Järnvägar after 2001 continued to exist as a governmental agency, mainly dealing with the leasing of rail vehicles, but otherwise had no regular railroad activities. It was dismantled at the end of 2012 when that role

520-481: The rail tracks themselves were transferred to the Swedish Rail Administration ( Swedish : Banverket ), and in the upcoming years parts of SJ were gradually transformed into limited companies as a result of the open access obligation introduced by EU Directive 91/440 . SJ was disbanded in 2001, with the assets transferred to seven separate companies, the first three owned by the Swedish government and

546-399: The rotating heads of the coupler, ensure the engagement of the components, making it unnecessary to use force to get a good coupling. Joining portions of a passenger train can be done at very low speed (less than 3 km/h or 2 mph in the final approach), so that the passengers are not jolted. One problem with the coupler is that it is often hard to connect it in a curve. Planned coupling

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572-452: The safety of train couplings increasingly important. Dellner responded to that development in the railroad industry by considering the coupling of a train as a safety-relevant component of the entire train system. The former supplier of train couplings became a manufacturer of integrated coupling systems that have been equipped with numerous safety features over the years: Dellner's coupling business in Sweden has traded under various names over

598-399: The umbrella of the newly founded Dellner Group. Dellner Couplers and Dellner Group are two entirely separate companies. Whereas Dellner Couplers is focused on providing train connection systems, Dellner Group is focused on delivering breaks, hydraulics, polymers and glass for various industries and the transportation sector. In early 2021, Dellner acquired the couplers business of CAF MiiRA,

624-472: The years. In 1952, the Engineering Bureau Dellner was renamed Runnvika Mechanical Workshop. Later, the coupling business traded under the legal names Jan Dellner & Co, AB Dellner Malmco and finally as Dellner Couplers AB. In 1992, Dellner Invest AB was founded as an umbrella company for Dellner Couplers. After the collapse of the Soviet Union and the economic opening of Eastern Europe, Dellner expanded into

650-568: Was fully taken over by Trafikverket . [REDACTED] Media related to Statens Järnvägar at Wikimedia Commons Scharfenberg coupler The Scharfenberg coupler ( German : Scharfenbergkupplung , abbreviated Schaku ) is a commonly used type of fully automatic railway coupling . Designed in 1903 by Karl Scharfenberg in Königsberg , Germany (today Kaliningrad , Russia), the coupler has gradually spread from transit trains to regular passenger service trains, although outside Europe its use

676-415: Was integrated into a newly founded subsidiary called Dellner Dampers, which formed a new business unit of Dellner Invest. In 2009, Dellner Invest acquired a British gangway systems manufacturer called Woodville, and created a new business unit of Dellner Invest called Dellner Woodville. Until 2019, Dellner Couplers and Dellner Dampers were both part of the holding company Dellner Invest, which also included

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