Sri Lanka Railways S12
Class S12 is a diesel multiple-unit (DMU), built for Sri Lanka Railways by China's CSR Corporation. The first batch arrived in Sri Lanka in August 2012. They were built to replace locomotive-hauled passenger trains. Seven of the S12 DMUs were ordered to strengthen long-distance travel on the Main line from Colombo to Badulla. Four of S12s will serve the Kelani Valley Line. The remaining two designed as luxury trains.
|Sri Lanka Railways Class S12|
Class S12 No. 925
|Built at||Sifang, China|
|Family name||D 22 (KV Set)|
|Number built||13 trainsets|
|Number in service||13|
|Formation||MCG + 3xTC + 3xSC + 1xFC + 1xRC + MCG (Main Line Set), MCG + 5xTC + DDCG (KV Set)|
|Capacity||44 (AFC) + 66*3 (TC) + 52 (TCBU) + 44*3 (SC) = 426|
|Operator(s)||Sri Lanka Railways|
|Car body construction||Manufactured In Stainless steel|
|Car length||50 ft (15.24 m)|
|Maximum speed||100 km/h (62 mph) (De-rated 80 km/h or 50 mph)|
|Weight||Engine Horse Power 1950 (KW 1450)|
|Prime mover(s)||MTU 12V4000R41 Two engines per unit in Main Line Set|
|Braking system(s)||Air (Knorr-Bremse), Dynamic|
|Coupling system||Automatic (dual)|
|Track gauge||5 ft 6 in (1,676 mm)|
The S12 DMUs were meant to improve services on the Main Line and the Kelani Valley Line. The steep slopes on the up-country portion of the Main Line is difficult to operate. Prior to the S12, only a few models of locomotives were capable of operating this line. As DMUs started to replace locomotive-operated trains on other lines, the up-country Main Line could not be operated by DMUs. The S12 is the first DMU to handle these conditions.
The locomotives are purchased under a USD 101 million credit line agreement with China. The loan would be settled within 15 years.
Current fleet details
|Class||Configuration||Operator||No. in service||Year Built||Cars per Set||Unit numbers.|
|Class S12||Main Line sets||Sri Lanka Railways||7||2012 - 2013||8||917 - 939|
|Kelani Valley Line sets||4||7|
Main Line sets
- "෴S12 බලවේග දුම්රිය - උඩරට කඳුකරයේ ඔබ මොබ දිව යන නිල් යක්කු෴". http://locolanka.blogspot.com/. Retrieved 19 June 2014. External link in
- Range, Irangika (5 September 2012). "Five more power sets in operation". Ceylon Daily News. Retrieved 26 September 2012.
- Range, Irangika (18 October 2012). "New power sets to reduce travel time - minister". Ceylon Daily News. Retrieved 18 October 2012.
- Range, Irangika (23 October 2012). "Luxury train service launched". Ceylon Daily News. Retrieved 27 October 2012.