Demag
Encyclopedia
Demag or Demag Cranes AG is a German heavy equipment manufacturer now controlled by US based Terex
. The roots of Demag date back prior to its formation, but became Märkische Maschinenbau-Anstalt, Ludwig A.-G in 1906 as the biggest crane building company in Germany employing 250-300 people. The company was a manufacturer of industrial cranes that included types like, bridge cranes, hoist (device)
, overhead crane
s, Gantry crane
to name a few. In 1910 came the hour of the Deutsche Maschinenfabrik in Duisburg – known worldwide by its telegram abbreviation Demag (now Demag Cranes & Components GmBH). In 1973 The Mannesmann
group assumed ownership of Demag. Since that time the company has continued to grow and change. Parts of the company under core business structuring moved from its ownership to focus the main concept of the company.
through the union of Märkischer Maschinenbau-Anstalt L. Stuckenholz AG,
Duisburg Mechanical Engineering AG, and the Benrath
Machine Works GmbH. In 1910, they designed what was then the world's largest floating crane, built for Harland & Wolff in Belfast
, which would be used for the building of the passenger liners RMS Olympic
and RMS Titanic.
Starting in 1925, Demag also manufactured excavator
s. They expanded to manufacture locomotives and railroad car
s. During the Second World War, armoured fighting vehicles (in particular Bergepanther) were built in the Berlin
Staaken
plant.
During the buildup to, and during World War II, Demag-designed halftrack military vehicles, such as the armored Sd.Kfz. 250, played an important role during the war, with just over 6,600 built by Demag and their subcontractors.
excavators. Demag would soon expand into construction machines, vehicle cranes, moving and conveying engineering (workshop crane and control devices), steel mill technology (complete metallurgical plants, in particular continuous casting equipment), compressor
s, and compressed air engineering. The company also became a world leader in the manufacturing of injection moulding
machines.
group, based in Düsseldorf
. In 1983 Mannesmann-Demag AG and Wean United, Inc. of Pittsburgh, USA, founded a daughter company to produce steel working equipment, Mannesmann Demag Wean Co.
A joint venture with the Japanese manufacturer Komatsu led to spinning off of the large-scale excavation operations and their renaming as Komatsu Mining.
The steel and rolling mill technology division, based in Duisburg
, was spun off to Schloemann-Siemag (SMS) and continues today under the name SMS Demag.
The compressor division was sold in 1996 to CompAir, which was then part of the British Siebe/Invensys group, but has since become an independent company.
Later (1999), the injection moulding manufacturing was merged with that of Krauss-Maffei
, which had itself been acquired by Mannesmann from 1989, to form Mannesmann Demag Krauss Maffei and formed part of Mannesmann Atecs (for Advanced Technologies), a holding company for all of Mannesmann's non-telecom activities. Krauss Maffei's general equipment manufacturing and defence portions later passed to Linke/Hoffmann/Busch. The holding company was later named Mannesmann Plastics Machinery or MPM, with primary divisions Demag Plastics and Krauss-Maffei.
Following the acquisition of Mannesmann by Vodafone
in 1999-2000, the Atecs holding company was divested to a consortium of Siemens
and Bosch
, which then integrated parts of it into one or the other company and spun off others. The Demag units became part of Siemens.
In the autumn of 2001, Siemens divested by far the majority of these to Kohlberg Kravis Roberts (KKR). At this same time the world economy was going through another recession, entailing downsizing and the reduction of jobs. Those that remained were restructured and became part of the new company focus for future growth.
Demag Cranes and Components was one of the non-core divisions carved out from Siemens and acquired by KKR. KKR initiated a major reorganization of the Demag Crane and Components organization, including a refocused effort of their product lines. The production and general company focus changed to Overhead crane
s, hoist
's, Gantry crane
s, and Portal cranes under the name Gottwald. Parts of the conveying engineering activities remained with Siemens under the name Dematic
. The remainder of the conveying engineering firm was sold in 2006 as Demag Cranes AG, together with the quay crane manufacturer. Demag Cranes was listed publicly in 2006, and has since increased its market share both in the US and worldwide. MPM was also sold to KKR and is now part of Sumitomo Heavy Industries
In August 2002, the Demag crane plant in Zweibrücken
became part of the US Terex
company. The brand name Terex-Demag continues.
In 2011 the BBC Television
programme How to Build A Super Jumbo Wing showed Demag equipment at Broughton, Flintshire
, Wales, UK, lifting the largest wing ever produced for a civil airliner, 17.7 metres from front to back and 36.3 metres from fuselage to wingtip. This is fitted to the Airbus A380
, the world's biggest passenger aircraft.
Withdrawal of Demag Holding S.à.r.l..
References http://www.reuters.com/article/2011/07/01/demag-terex-idUSLDE7600YB20110701
Terex
Terex Corporation is an American-based diversified global manufacturer of a broad range of heavy equipment for a variety of industries, including construction, infrastructure, quarrying, recycling, surface mining, shipping, transportation, refining, utility and maintenance...
. The roots of Demag date back prior to its formation, but became Märkische Maschinenbau-Anstalt, Ludwig A.-G in 1906 as the biggest crane building company in Germany employing 250-300 people. The company was a manufacturer of industrial cranes that included types like, bridge cranes, hoist (device)
Hoist (device)
A hoist is a device used for lifting or lowering a load by means of a drum or lift-wheel around which rope or chain wraps. It may be manually operated, electrically or pneumatically driven and may use chain, fiber or wire rope as its lifting medium. The load is attached to the hoist by means of a...
, overhead crane
Overhead crane
An overhead crane, commonly called a bridge crane, is a type of crane found in industrial environments. An overhead crane consists of parallel runways with a traveling bridge spanning the gap...
s, Gantry crane
Gantry crane
Gantry cranes, bridge cranes, and overhead cranes, are all types of cranes which lift objects by a hoist which is fitted in a hoist trolley and can move horizontally on a rail or pair of rails fitted under a beam...
to name a few. In 1910 came the hour of the Deutsche Maschinenfabrik in Duisburg – known worldwide by its telegram abbreviation Demag (now Demag Cranes & Components GmBH). In 1973 The Mannesmann
Mannesmann
Mannesmann AG was a German corporation with headquarters in Düsseldorf. The company was founded in 1890 originally to produce seamless steel tubes. It was traded on the Frankfurt Stock Exchange. The company had 130,860 employees worldwide and revenues of €23.27 billion.Over time, Mannesmann...
group assumed ownership of Demag. Since that time the company has continued to grow and change. Parts of the company under core business structuring moved from its ownership to focus the main concept of the company.
Founding
The Demag company was formed in DuisburgDuisburg
- History :A legend recorded by Johannes Aventinus holds that Duisburg, was built by the eponymous Tuisto, mythical progenitor of Germans, ca. 2395 BC...
through the union of Märkischer Maschinenbau-Anstalt L. Stuckenholz AG,
Duisburg Mechanical Engineering AG, and the Benrath
Düsseldorf-Benrath
Benrath is a part of Düsseldorf in the south of the city. It has been a part of Düsseldorf since 1929.-History:The name Benrath came from the "Knights of Benrode". The settlement was mentioned for the first time in 1222 in a document from Cologne where Everhard de Benrode is named as an attestor...
Machine Works GmbH. In 1910, they designed what was then the world's largest floating crane, built for Harland & Wolff in Belfast
Belfast
Belfast is the capital of and largest city in Northern Ireland. By population, it is the 14th biggest city in the United Kingdom and second biggest on the island of Ireland . It is the seat of the devolved government and legislative Northern Ireland Assembly...
, which would be used for the building of the passenger liners RMS Olympic
RMS Olympic
RMS Olympic was the lead ship of the Olympic-class ocean liners built for the White Star Line, which also included Titanic and Britannic...
and RMS Titanic.
Starting in 1925, Demag also manufactured excavator
Excavator
Excavators are heavy construction equipment consisting of a boom, stick, bucket and cab on a rotating platform . The house sits atop an undercarriage with tracks or wheels. A cable-operated excavator uses winches and steel ropes to accomplish the movements. They are a natural progression from the...
s. They expanded to manufacture locomotives and railroad car
Railroad car
A railroad car or railway vehicle , also known as a bogie in Indian English, is a vehicle on a rail transport system that is used for the carrying of cargo or passengers. Cars can be coupled together into a train and hauled by one or more locomotives...
s. During the Second World War, armoured fighting vehicles (in particular Bergepanther) were built in the Berlin
Berlin
Berlin is the capital city of Germany and is one of the 16 states of Germany. With a population of 3.45 million people, Berlin is Germany's largest city. It is the second most populous city proper and the seventh most populous urban area in the European Union...
Staaken
Staaken
Staaken is a locality at the western rim of Berlin within the borough of Spandau. In the west it shares border with the Brandenburg municipalities of Falkensee and Dallgow-Döberitz in the Havelland district. Buildings range from small detached houses in the west to larger 1960s and 1970s housing...
plant.
During the buildup to, and during World War II, Demag-designed halftrack military vehicles, such as the armored Sd.Kfz. 250, played an important role during the war, with just over 6,600 built by Demag and their subcontractors.
Hydraulic era
In 1954, Demag developed their first hydraulicHydraulics
Hydraulics is a topic in applied science and engineering dealing with the mechanical properties of liquids. Fluid mechanics provides the theoretical foundation for hydraulics, which focuses on the engineering uses of fluid properties. In fluid power, hydraulics is used for the generation, control,...
excavators. Demag would soon expand into construction machines, vehicle cranes, moving and conveying engineering (workshop crane and control devices), steel mill technology (complete metallurgical plants, in particular continuous casting equipment), compressor
Gas compressor
A gas compressor is a mechanical device that increases the pressure of a gas by reducing its volume.Compressors are similar to pumps: both increase the pressure on a fluid and both can transport the fluid through a pipe. As gases are compressible, the compressor also reduces the volume of a gas...
s, and compressed air engineering. The company also became a world leader in the manufacturing of injection moulding
Injection moulding
Injection molding is a manufacturing process for producing parts from both thermoplastic and thermosetting plastic materials. Material is fed into a heated barrel, mixed, and forced into a mold cavity where it cools and hardens to the configuration of the cavity...
machines.
As part of the Mannesmann group
In 1973 the ownership of Demag was assumed by the MannesmannMannesmann
Mannesmann AG was a German corporation with headquarters in Düsseldorf. The company was founded in 1890 originally to produce seamless steel tubes. It was traded on the Frankfurt Stock Exchange. The company had 130,860 employees worldwide and revenues of €23.27 billion.Over time, Mannesmann...
group, based in Düsseldorf
Düsseldorf
Düsseldorf is the capital city of the German state of North Rhine-Westphalia and centre of the Rhine-Ruhr metropolitan region.Düsseldorf is an important international business and financial centre and renowned for its fashion and trade fairs. Located centrally within the European Megalopolis, the...
. In 1983 Mannesmann-Demag AG and Wean United, Inc. of Pittsburgh, USA, founded a daughter company to produce steel working equipment, Mannesmann Demag Wean Co.
A joint venture with the Japanese manufacturer Komatsu led to spinning off of the large-scale excavation operations and their renaming as Komatsu Mining.
The steel and rolling mill technology division, based in Duisburg
Duisburg
- History :A legend recorded by Johannes Aventinus holds that Duisburg, was built by the eponymous Tuisto, mythical progenitor of Germans, ca. 2395 BC...
, was spun off to Schloemann-Siemag (SMS) and continues today under the name SMS Demag.
The compressor division was sold in 1996 to CompAir, which was then part of the British Siebe/Invensys group, but has since become an independent company.
Later (1999), the injection moulding manufacturing was merged with that of Krauss-Maffei
Krauss-Maffei
The Krauss-Maffei Wegmann GmbH & Co KG or simply Krauss-Maffei is an injection molding machine manufacturer and defence company based in Munich, Germany...
, which had itself been acquired by Mannesmann from 1989, to form Mannesmann Demag Krauss Maffei and formed part of Mannesmann Atecs (for Advanced Technologies), a holding company for all of Mannesmann's non-telecom activities. Krauss Maffei's general equipment manufacturing and defence portions later passed to Linke/Hoffmann/Busch. The holding company was later named Mannesmann Plastics Machinery or MPM, with primary divisions Demag Plastics and Krauss-Maffei.
Following the acquisition of Mannesmann by Vodafone
Vodafone
Vodafone Group Plc is a global telecommunications company headquartered in London, United Kingdom. It is the world's largest mobile telecommunications company measured by revenues and the world's second-largest measured by subscribers , with around 341 million proportionate subscribers as of...
in 1999-2000, the Atecs holding company was divested to a consortium of Siemens
Siemens
Siemens may refer toSiemens, a German family name carried by generations of telecommunications industrialists, including:* Werner von Siemens , inventor, founder of Siemens AG...
and Bosch
Robert Bosch GmbH
Robert Bosch GmbH is a multinational engineering and electronics company headquartered in Gerlingen, near Stuttgart, Germany. It is the world's largest supplier of automotive components...
, which then integrated parts of it into one or the other company and spun off others. The Demag units became part of Siemens.
In the autumn of 2001, Siemens divested by far the majority of these to Kohlberg Kravis Roberts (KKR). At this same time the world economy was going through another recession, entailing downsizing and the reduction of jobs. Those that remained were restructured and became part of the new company focus for future growth.
Demag Cranes and Components was one of the non-core divisions carved out from Siemens and acquired by KKR. KKR initiated a major reorganization of the Demag Crane and Components organization, including a refocused effort of their product lines. The production and general company focus changed to Overhead crane
Overhead crane
An overhead crane, commonly called a bridge crane, is a type of crane found in industrial environments. An overhead crane consists of parallel runways with a traveling bridge spanning the gap...
s, hoist
Hoist (device)
A hoist is a device used for lifting or lowering a load by means of a drum or lift-wheel around which rope or chain wraps. It may be manually operated, electrically or pneumatically driven and may use chain, fiber or wire rope as its lifting medium. The load is attached to the hoist by means of a...
's, Gantry crane
Gantry crane
Gantry cranes, bridge cranes, and overhead cranes, are all types of cranes which lift objects by a hoist which is fitted in a hoist trolley and can move horizontally on a rail or pair of rails fitted under a beam...
s, and Portal cranes under the name Gottwald. Parts of the conveying engineering activities remained with Siemens under the name Dematic
Dematic
Dematic is a material handling and logistics automation company based in Luxembourg. It has production and management sites in Europe, China, Australia and the USA and is represented in 35 countries on all continents. The company has over 4,000 employees and achieved a business volume of over EUR...
. The remainder of the conveying engineering firm was sold in 2006 as Demag Cranes AG, together with the quay crane manufacturer. Demag Cranes was listed publicly in 2006, and has since increased its market share both in the US and worldwide. MPM was also sold to KKR and is now part of Sumitomo Heavy Industries
Sumitomo Heavy Industries
Sumitomo Heavy Industries, Ltd. is an integrated manufacturer of industrial machinery, automatic weaponry, ships, bridges and steel structure, equipment for environmental protection, including recycling, power transmission equipment, plastic molding machines, laser processing systems, particle...
In August 2002, the Demag crane plant in Zweibrücken
Zweibrücken
Zweibrücken is a city in Rhineland-Palatinate, Germany, on the Schwarzbach river.- Name :Zweibrücken appears in Latin texts as Geminus Pons and Bipontum, in French texts as Deux-Ponts. The name derives from Middle High German Zweinbrücken...
became part of the US Terex
Terex
Terex Corporation is an American-based diversified global manufacturer of a broad range of heavy equipment for a variety of industries, including construction, infrastructure, quarrying, recycling, surface mining, shipping, transportation, refining, utility and maintenance...
company. The brand name Terex-Demag continues.
In 2011 the BBC Television
BBC Television
BBC Television is a service of the British Broadcasting Corporation. The corporation, which has operated in the United Kingdom under the terms of a Royal Charter since 1927, has produced television programmes from its own studios since 1932, although the start of its regular service of television...
programme How to Build A Super Jumbo Wing showed Demag equipment at Broughton, Flintshire
Broughton, Flintshire
Broughton is a small district in Flintshire, Wales, close to the Wales–England border and located to the west of the City of Chester, England. Along with the nearby village of Bretton, the total population was 5,791 at the 2001 Census....
, Wales, UK, lifting the largest wing ever produced for a civil airliner, 17.7 metres from front to back and 36.3 metres from fuselage to wingtip. This is fitted to the Airbus A380
Airbus A380
The Airbus A380 is a double-deck, wide-body, four-engine jet airliner manufactured by the European corporation Airbus, a subsidiary of EADS. It is the largest passenger airliner in the world. Due to its size, many airports had to modify and improve facilities to accommodate it...
, the world's biggest passenger aircraft.
Notable dates.
- 1819 The present-day Demag Cranes & Components GmbH founded under the name Mechanische Werkstätten Harkort & Co. in Wetter an der Ruhr. First Steam powered crane produced by Ludwig Stuckenholz company. Now Demag Cranes & Components GmbH.
- 1840: Demag Cranes & Components starts full production of Overhead cranes in Germany.
- 1906 The present-day Gottwald Port Technology GmbH founded under the name of Maschinenfabrik Ernst Halbach AG in Düsseldorf
- 1910 Successor companies to Mechanische Werkstätten Harkort & Co. become part of Deutsche Maschinenfabrik AG (Demag: Demag starts production of Electric motorElectric motorAn electric motor converts electrical energy into mechanical energy.Most electric motors operate through the interaction of magnetic fields and current-carrying conductors to generate force...
hoist.
- 1956 Leo Gottwald KG builds the first mobile harbor crane
- 1969: Demag introduces the first AC motorAC motorAn AC motor is an electric motor driven by an alternating current.It commonly consists of two basic parts, an outside stationary stator having coils supplied with alternating current to produce a rotating magnetic field, and an inside rotor attached to the output shaft that is given a torque by the...
with a sliding rotor on its crane product in the USA.
- 1988 Mannesmann takes over Leo Gottwald KG and integrates it in Mannesmann Demag AG
- 1992 Restructuring of the Mannesmann Demag Group and spin-off of Mannesmann Demag Fördertechnik AG in Wetter
- 1996 Mannesmann Demag Fördertechnik AG takes over the Mobile Cranes segment from Mannesmann Demag AG in Duisburg.
- 1997 Mannesmann Demag Fördertechnik AG is renamed Mannesmann Dematic AG
- 2000 Mannesmann Dematic becomes an integral part of the Atecs Mannesmann AG Group; spin-off of Demag Cranes & Components GmbH (Wetter); Mannesmann taken over by Vodafone; Siemens AG and Robert Bosch GmbH acquire Atecs Mannesmann; the mechanical engineering division of Atecs Mannesmann AG, to which the current segments of Demag Cranes belonged, remains in the Siemens Group
- 2002 Demag Cranes & Components GmbH and Gottwald Port Technology GmbH taken over by Demag Holding S.à r.l (Luxembourg), in which private equity investment funds advised by KKR hold an 81% interest and Siemens AG holds 19% interest
- 2005: Demag Crane & Components Corp. produces the first "Smart hoist" with self-diagnostic capability.
- 2006 Consolidation of Demag Cranes & Components GmbH and Gottwald Port Technology GmbH under the umbrella of Demag Cranes AG and IPO and 23 June 2006.
Withdrawal of Demag Holding S.à.r.l..
- 2010: Demag becomes the first company to receive the industry certification by HMI.
- June 30th 2011: Terex gains 67% of Demag Cranes.
References http://www.reuters.com/article/2011/07/01/demag-terex-idUSLDE7600YB20110701