CSR SDD7

The CSR SDD7 is a 2,249 hp diesel-electric locomotive manufactured by CSR Corporation Limited from 2013 onwards for use in Argentina by Trenes Argentinos, a subsidiary of Ferrocarriles Argentinos. On the San Martín Line in Buenos Aires, 24 of these locomotives are used, making up the entire rolling stock of the commuter rail line.[1]

CSR SDD7 locomotive
A Trenes Argentinos CSR SDD7 on the San Martín Line
Type and origin
Power typeDiesel-electric
BuilderCSR Qishuyan Loco,
Build date2013-
Specifications
Configuration:
​
 • UICCo'Co'
Gauge1,676 mm (5 ft 6 in)
Loco weight114 tonnes
Fuel capacity6,000 l (1,300 imp gal)
Sandbox cap.400 kg (880 lb)
Prime moverCaterpillar 3516B
Engine typeDiesel
Traction motorsZQDR310D
TransmissionDiesel electric
Performance figures
Maximum speed120 km/h (75 mph)
Power output2,249 hp (1.7 MW)
Tractive effort:
​
 • Starting320kN
 • Continuous200kN
Career
OperatorsTrenes Argentinos
LocaleBuenos Aires, Argentina

Technical specifications

The locomotive has one conductor's cabin on each end, connected by an internal corridor. Its total weight is 114 tonnes with a maximum weight per axle of 19 tonnes. The 3516B engine is manufactured by Caterpillar and generates 1678 kW, with the locomotive having a maximum speed of 120 km/h. Each axle has an independent traction motor, which are controlled by two microprocessors.[2]

Each locomotive has a 6000-litre fuel capacity, carries 420 kg of lubricants, 800 litres of water and 400 kg of sand in its sandboxes.

Usage

In Argentina, the locomotives are used exclusively for the San Martín Line of the General San Martín Railway. Despite there being plans for electrification, the 24 trains make up the entirety of the line's rolling stock. During the integration of this new rolling stock, the stations on the lines were also modernised and restored.[3] As of 2015, the electrification of the line is being considered, which would mean the rolling stock would be moved elsewhere.[4]

In 2018 Transmashholding Argentina was awarded a contract to refurbish and update the locomotives and their respective carriages.[5]

  • Locomotive doing maneuvers in Cabred
  • A train arriving at Olivos station
  • Train leaving Devoto station
  • Bicycle carriage in one of the trains
  • A train in the outskirts of Buenos Aires
gollark: The hue shifting should be at a different frequency to the rotation, for purposes.
gollark: We could slowly move the lemons throughout hue-space too, yes?
gollark: Yes. This is documented in GTech™ Basement Site-293838F, room H/30.
gollark: You don't actually need to *ping* it, just mention it.
gollark: Too bad.

See also

References
  1. "First CSR cars arrive in Buenos Aires". Railway Gazette. 6 March 2013.
  2. "SDD7 Diesel Locomotive". CSR. 22 January 2014. Archived from the original on 2015-05-24.
  3. "Los nuevos trenes chinos en el San Martín". La Nación (in Spanish). 26 October 2013.
  4. "China realizará el estudio de factibilidad para electrificar la línea San Martín". Sala de Prensa de la Republica Argentina (in Spanish). 9 September 2015. Archived from the original on 13 September 2015.
  5. Krom, Andres (11 May 2018). "Un gigante ferroviario ruso inició sus operaciones en el país" (in Spanish). Retrieved 12 May 2018.
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