Car slewing crane 70
The car crane 70 (ADK 70) is in the DDR produced Mobile crane with a maximum working load of 7 tons.
history
The concept for the ADK 70 was developed in 1974 in VEB Schwermaschinenbau SM Kirow Leipzig . The aim of the development was to use the IFA W50 as an inexpensive, established commercial vehicle also for a crane assembly. In addition, the final task of producing the ADK 63-1 and ADK 63-2 car slewing cranes was due, as the manufacturing company, VEB Schwermaschinenbau "Georgi Dimitroff" Magdeburg , was only supposed to manufacture open-pit mining equipment from 1976 for economic policy reasons. After the construction of a functional model, the further development of the ADK 70 was stopped at VEB Schwermaschinenbau SM Kirow Leipzig, also for economic and political reasons, and relocated to VEB Maschinenbau "Karl Marx" Babelsberg . A further six functional models were built there up to series production in 1976. Production lasted until 1991, as the successor ADK 80 could never be produced in sufficient numbers. Thus, a total of 6,737 pieces of the ADK 70 were produced.
During the production period, minor improvements were made to the production process and the model. To delimit planned but not implemented further developments, the ADK 70 was temporarily given the type designations ADK 70-0 and ADK 70-1.
Starting in 1980, a further 6 meter boom was offered as additional equipment in addition to the 4 meter long boom. From 1982 a generator with external power supply was offered, which should save diesel fuel with longer stationary operation.
The ADK 70 had an export quota of 70% and was mainly exported to Bulgaria , Hungary , Poland , the People's Republic of China , Vietnam , Cuba , the ČSSR and another 15 countries.
Technical data ADK 70
The IFA W50 with a long wheelbase (3700 mm) and all-wheel drive served as the base vehicle .
- Crew: 1/1
- Crane operation: hydraulic
- maximum load capacity: 7.0 t at max. 2.0 meter radius (supported)
- maximum radius: 14.5 m / 0.06 t
- maximum lifting height: 15.0 m
- Rotation range: 360 °
- maximum rotation speed: 2.5 / min
- maximum lifting speed: 27.0 m / min
- Motor: 4 VD 14.5 / 12-1 SRW
- 4-cylinder four-stroke diesel engine, water-cooled
- Bore × stroke: 120 × 145 mm
- Displacement: 6560 cm³
- Output: 92 kW (125 PS) at 2300 rpm
- Transmission: 5 + 1-speed manual transmission, off-road gear
- Tires: 9.00-20 PR 12
- Dimensions in transport position: 7800 × 2500 × 3350 mm³
- Operating weight: 11,100 kg
- Driving speed: 70 km / h
ADK 70-U
In 1989/90 the Soviet Union was offered a crane based on the ADK 70, which was to have the Ural-5557 as an undercarriage . The pump drive ran via the power take-off of the vehicle engine. The crane had a cabin from ADK 100. The crane corresponded to the Gossudarstwenny Standard (GOST) and was intended for use in agriculture. Alternatively, a project with a ZIL truck was offered. Both projects were not implemented.
Further development of the ADK 70
After the fall of the Wall , western vehicles were quickly integrated into the existing crane concept as planned. In addition to the ADK 70, however, the cabin of the ADK 100 was also integrated. The Mercedes-Benz 1114/37, the MAN 10.150, the DAF FA1000 CB and the UNIMOG were to serve as the undercarriage. None of these projects was pursued further because the ADK 70 was no longer marketable in terms of technology and price.
literature
- Walter Lütche: Giants of work - 40 years of mobile crane construction in the GDR. KM-Verlags GmbH Griesheim, 2003, ISBN 3-934518-05-2 .
- Ralf Christian Kunkel: GDR construction machinery 1945–1990. Motorbuch Verlag, 2010, ISBN 978-3-613-03032-9 .
Web links
Individual evidence
- ^ Ralf Christian Kunkel: GDR construction machinery 1945–1990. Motorbuch Verlag, 2010, ISBN 978-3-613-03032-9 .