MGT6D

MGT6D low-floor articulated multiple unit
	From left to right: Rostocker 6NGTWDE (6N1), Brandenburger MGT6D, Heidelberg MGT6D, Hallenser MGT6D, Bochum MGT6D (NF6D), Erfurt MGT6DE
Number:	339 railcars
Manufacturer:	Duewag , Siemens
Axis formula :	Bo'1'1'Bo '
Length:	28 620 mm
Height:	3377 mm
Width:	2300 mm
Top speed:	70 km / h
Hourly output :	420 kW
Power system :	600 V =
Power transmission:	Overhead line
Seats:	72 (ZR)
Standing room:	99 (ZR)
Particularities:	Details refer to the Bochum series

The MGT6D ( DUEWAG low-floor car ) is a type of tram- low-floor articulated multiple unit with a low-floor share of around 63 to 70 percent.

technology

This type was developed for Kassel from 1988 . It was the first series vehicle to have single-wheel single-wheel chassis (EEF) based on the Frederich system. The vehicle consists of a middle part with two EEF drives and two end parts attached to it, each with a two-axle drive bogie . The vehicles in Bonn and Düsseldorf have single-axle racks instead of the EEF drives, while the vehicles in Leipzig have two-axle small wheel bogies.

They are available as one or two-way vehicles and in various widths and lengths.

The Kassel vehicles have a classic direct current drive with chopper control , all other vehicles have a three-phase drive. Due to the larger space requirements of the DC motors, the Kassel wagons have a higher floor above the motor bogies in contrast to the variants in other cities. In order to ensure that all doors are on the same level despite the end entrances, the wagons in Kassel were also given asymmetrical ends.

commitment

After delivery to Kassel in 1990, the Bogestra also ordered a meter-gauge version with only 2.3 m car body width. Already during the construction phase of the Bochum wagons, two vehicles were delivered to HAVAG in Halle an der Saale, which then procured further modified vehicles.

In addition to these three companies, the vehicle was also sent to Brandenburg an der Havel , Mülheim an der Ruhr and Oberhausen , to Erfurt (there also as a one-way vehicle ), as well as - with a modified front section ( adapted to the type M / N light rail vehicle) and individual doors at the vehicle ends - Delivered to Heidelberg (all meter gauge ) and Rostock ( standard gauge ) with a different door arrangement and therefore a step-free passenger compartment.

Also, Bonn , Dusseldorf and Leipzig employ a modified for this type car.

The MGT6D are normally used individually. On the Erfurt tram , the Bogestra (only at major events) and in Düsseldorf and originally in Oberhausen, they are also used in double traction with a capacity of almost 350 passengers; In Halle, double units drove on line 2 between 1999 and 2003.

business	Type designation of the operator	Type ¹	Track width _{in mm}	Construction year	number	Wagon no.	Trolley length _{in m}	Width _{in m}	particularities
Bochum, Gelsenkirchen	NF6D	6Z	1000	1992-1994	30th	401-440, 442	28.62	2.3	6 (410, 415, 425, 434, 435,442) - scrapped 1 (432) - sold to Mülheim an der Ruhr in 2016 (as a spare parts donor) 1 (441) - 3/04/2017 sold to Lodz next 32 pieces (+ 2 as an option) - November 2017 - sold to Lodz (deliveries by 2020) 4 pieces sold in 2018

Bonn	R1.1	6Z	1435	1994	24	9451-9474	28.57	2.4	Single-axis trolleys instead of EEF

Brandenburg on the Havel	MGT6D	6Z	1000	1995	4th	100-103	28.62	2.3
Brandenburg on the Havel	MGT6D	6Z	1000	1992/1993	2	104 + 105	28.62	2.3	March 2014 ex hall 500–501

Dusseldorf	NF6	6E	1435	1996-2000	48	2101-2148		2.4	Single-axis trolleys instead of EEF

Erfurt	MGT6D	6Z	1000	1994	4th	601-604	28.62	2.3
Erfurt	MGT6DE	6E	1000	1996-1998	12	605-616	28.62	2.3

Halle (Saale)	MGT6D	6Z	1000	1992/1993	0	500 + 501	28.62	2.3	taken from the Bochum series; When they were delivered, the wagons had two pantographs on the ends of the wagons, both of which were also installed in operation; later one was relocated to the middle. March 2014 sold to Brandenburg
Halle (Saale)	MGT6D	6Z	1000	1996-2001	60	601-660	28.62	2.3	Driver's cab doors

Heidelberg	MGT6D	6Z	1000	1994/1995	12	3261–3272 ex 261–272	28.93	2.3	"M-Wagen" front, single passenger door front / rear

kassel	NGT6C	6E	1435	1990/1991	15th	451-465	28.75	2.3	Single passenger door at the front, double door at the rear, asymmetrical car ends
	NGT6C	6E	1435	1994	8th	466-473	28.75	2.3	"
	NGT6C	6E	1435	1994	2	474 + 475	28.75	2.3	"; Property of HLB until the end of 2015

Leipzig	NGT8 (type 36)	8E	1458	1994-1998	56	1101-1156	27.77	2.2	Small wheel bogies instead of EEF, wheel arrangement Bo'2'2'Bo '

Mülheim an der Ruhr	NF6D	6Z	1000	1995/1996	4th	201-204	28.62	2.3

Rostock	6NGTWDE	6E	1435	1994-1996	40	651-690	30.4	2.3	stepless interior through offset doors and longer end cars

Oberhausen	NF6D	6Z	1000	1996	6th	205-210	28.62	2.3	joint use with the Mülheim car

Łódź (Poland)	NF6D	6Z	1000	1992-1994	29	1751, 1861–1874, 1951– 1960 1051-1054	28.62	2.3	Ex Bochum / Gelsenkirchen next 32 pieces (+ 2 as an option) - November 2017 - bought from Bochum / Gelsenkirchen (deliveries until 2020), 1751 (441), 1861 (403), 1862 (405), 1863 (402), 1864 (406), 1865 (408), 1866 (412), 1867 (409), 1868 (426), 1869 (411), 1870 (428), 1871 (413), 1872 (414), 1873 (419), 1874 (420), 1951 (423), 1952 (424), 1953 (429), 1954 (430), 1955 (431), 1956 (433), 1957 (436), 1958 (437) 1959 (438), 1960 (439) 1051 (404), 1052 (440) 1053 (407), 1054 (417)

/ 8 - number of axles and pairs of wheels; E / Z - one or two-way vehicle

Rhine-Neckar

For Mannheim / Ludwigshafen and Heidelberg the procurement of the MGT6D and one for approx. 40 was from 1993/1994 Meter-longer variant planned as the first common vehicle type for all three cities and the Rhein-Haardtbahn . Advertisements have already been issued showing the drawing of an MGT6D in the green Mannheim color scheme that was current at the time. Ultimately, only Heidelberg procured these vehicles, but with a modified front, similar to the M light rail vehicle . Due to problems with the axle load of the extended vehicle, the procurement of this vehicle type was not carried out in Mannheim and Ludwigshafen. Instead, 69 multi-articulated vehicles of the 6MGT and 8MGT types were purchased. Only the front section of the MGT6D was adopted for these vehicles.

successor

With its structure of the car body , the eight-axle version of the Bombardier Flexity Classic can be regarded as the successor to the MGT6D. Kassel was also the first to order this type.

Problems

The NF6D wagons used by Bogestra from 1992 were actually only fully available in summer 2006, but soon showed new weak points due to cracks in the car bodies at window and door corners and in summer 2014 due to the breakage of an axle bridge. The discovery of another chassis with cracks in the cast axle brackets of the single wheel chassis in January 2015 led to the decision of the technical supervisory authority to restrict this type of car to a maximum speed of 30 km / h to continue to operate. The cast single wheel bogies have been gradually replaced by forged bogies since 2015, as they were also used in later construction lots. After replacing the axle brackets, the maximum speed remains at 50 km / h limited. From 2016, the NF6D will be replaced early with new acquisitions. Originally, it was planned to operate for 35 years instead of the 23 years now reached.

Web links

Commons : MGT6D - collection of images, videos and audio files

Individual evidence

↑ From HLB to KVG. (No longer available online.) In: tram-kassel.de. July 24, 2016, archived from the original on August 13, 2016 ; accessed on June 27, 2017 .
↑ Marc Keiterling: More than 200 million euros - 42 new trams. Bogestra is forced to make early purchases after the chassis disaster. In: Stadtspiegel Bochum, March 12, 2015, p. 3.

[1] From HLB to KVG. (No longer available online.) In: tram-kassel.de. July 24, 2016, archived from the original on August 13, 2016 ; accessed on June 27, 2017 .

[2] Marc Keiterling: More than 200 million euros - 42 new trams. Bogestra is forced to make early purchases after the chassis disaster. In: Stadtspiegel Bochum, March 12, 2015, p. 3.