Indian locomotive class WCM-4: Difference between revisions

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| ordernumber = 59/459/1/RS(F)
| ordernumber = 59/459/1/RS(F)
| serialnumber =  
| serialnumber =  
| buildmodel = EM4
| buildmodel = EM/4
| builddate = 18 April 1959
| builddate = 18 April 1959
| totalproduction = 7
| totalproduction = 7
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| gauge = {{RailGauge|5ft6in|lk=on}}
| gauge = {{RailGauge|5ft6in|lk=on}}
| bogies = 3 Axle fabricated frame, Swing bolster with Equalizer beams
| bogies = 3 Axle fabricated frame, Swing bolster with Equalizer beams
| wheeldiameter = New:{{convert|1220|mm|ftin|0|abbr=on}},<br>Half worn:{{convert|1182|mm|ftin|abbr=on|frac=2}} and<br>Full worn:{{convert|1144|mm|ftin|0|abbr=on}}
| wheeldiameter = New: {{convert|1220|mm|ftin|0|abbr=on}},<br>Half worn: {{convert|1182|mm|ftin|abbr=on|frac=2}} and<br>Full worn: {{convert|1144|mm|ftin|0|abbr=on}}
| wheelbase = {{convert|2380|mm|ftin|0|abbr=on}}
| wheelbase = {{convert|2380|mm|ftin|0|abbr=on}}
| length =  
| length =  
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| powersupply = 110 V [[Direct current|DC]]
| powersupply = 110 V [[Direct current|DC]]
| electricsystem = 1.5 kV [[Direct current|DC]] [[Overhead line|Overhead]]
| electricsystem = 1.5 kV [[Direct current|DC]] [[Overhead line|Overhead]]
| collectionmethod = [[pantograph (rail)|pantograph]]
| collectionmethod = [[pantograph (rail)|Pantograph]]
| alternator =  
| alternator =  
| generator =  
| generator =  
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| maxspeed = {{convert|120.5|km/h|mph|0|abbr=on}}
| maxspeed = {{convert|120.5|km/h|mph|0|abbr=on}}
| poweroutput =  
| poweroutput =  
| poweroutput start = Max:{{convert|4000|hp|kW|-1|abbr=on}}
| poweroutput start = Max: {{convert|4000|hp|kW|-1|abbr=on}}
| poweroutput 1 hr = Max:{{convert|4000|hp|kW|-1|abbr=on}}
| poweroutput 1 hr = Max: {{convert|4000|hp|kW|-1|abbr=on}}
| poweroutput cont = Max:{{convert|3290|hp|kW|-1|abbr=on}}
| poweroutput cont = Max: {{convert|3290|hp|kW|-1|abbr=on}}
| tractiveeffort =  
| tractiveeffort =  
| t/e starting = {{convert|31250|kgf|kN|-1|abbr=on}}
| t/e starting = {{convert|31250|kgf|kN|-1|abbr=on}}
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| nicknames =  
| nicknames =  
| locale = Central Railways
| locale = Central Railways
| deliverydate = 1960
| deliverydate = 1959
| firstrundate = 1961
| firstrundate = 1959
| lastrundate = January 2000
| lastrundate = January 2000
| retiredate = Early 2000s
| retiredate = Early 2000s
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| scrapdate =  
| scrapdate =  
| currentowner =  
| currentowner =  
| disposition = All have been scrapped.
| disposition = All scrapped.
| notes =  
| notes =  
}}
}}
The Indian locomotive class '''WCM-4''' is a class of 1.5 [[Volt|kV]] [[Direct current|DC]] [[electric locomotive]]s that was developed in 1956 by [[Vulcan Foundry]] and [[English Electric]] for [[Indian Railways]]. The model name stands for [[5 ft 6 in gauge railway|broad gauge (W)]], Direct Current (C), Mixed traffic (M) engine, 4th generation (4). They entered service in 1961. A total of 7 WCM-4 locomotives was built at England between 1956 and 1957.
The Indian locomotive class '''WCM-4''' was a class of 1.5 [[Volt|kV]] [[Direct current|DC]] [[electric locomotive]]s developed in the late 1950s by [[Hitachi]] for [[Indian Railways]]. The model name stands for [[5 ft 6 in gauge railway|broad gauge (W)]], Direct Current (C), Mixed traffic (M) engine, 4th generation (4). A total of 7 WCM-4 locomotives were built in Japan in 1959 for [[Central Railways]].{{citation needed|date=December 2021}}


The WCM-4 served both passenger and freight trains for over 39 years. With the introduction of more modern types of locomotives  and 25 KV [[Alternating current|AC]] electrification, all were withdrawn in early 2000s after repeated failures. Today Sadly all locomotives have been Scrapped.
== History==
== History==
Indian Railways decided to procure 7 locomotives from Hitachi. They are manufactured in Japan and shipped to India in 1957. These locomotives had now common [[Co-Co locomotives|Co-Co]] wheel arrangement.<ref>{{Cite web|title=Refer pg 260|url=https://rdso.indianrailways.gov.in/works/uploads/File/Data%20Book%20of%20Electric%20Locomotives%202016(3).pdf}}</ref>  Initially the WCM-4 class were known as EM/4 class.<ref>{{Cite book| title=Vulcan Foundry Locomotives 1832–1956| last=Gudgin| first=D.S.E.| publisher=Bradford Barton| location=Truro| year=1976| isbn=978-0-85153-215-8}}</ref> They were easily recognizable with their larger size and normal light enclosures for the marker lights  and the tail lamps (just above the buffers). They had their cab doors placed near the cab unlike the [[Indian locomotive class WCM-1|WCM-1]] class. The WCM-4 is a more powerful and larger version of the [[Indian locomotive class WCM-3|WCM-3]] class. They were intended for hauling superfast train in [[Central Railway zone|Central Railway]] CR. But after sometime they were relegated to freight duties only.
Indian Railways decided to procure seven locomotives from Hitachi. They were manufactured in Japan and shipped to India in 1959. These locomotives had now-common [[Co-Co locomotives|Co-Co]] wheel arrangement.<ref>{{Cite web|title=Refer pg 260|url=https://rdso.indianrailways.gov.in/works/uploads/File/Data%20Book%20of%20Electric%20Locomotives%202016(3).pdf}}</ref>  Initially the WCM-4 class were known as EM/4 class.<ref>{{Cite book| title=Vulcan Foundry Locomotives 1832–1956| last=Gudgin| first=D.S.E.| publisher=Bradford Barton| location=Truro| year=1976| isbn=978-0-85153-215-8}}</ref>
 
They began their CR zone service in 1961.The WCM-3 locomotives were used on many Express trains but had some problems and were relegated to hauling low speed passenger trains, shunting and freight duties only. In mid 1990s Central Railways decided to withdraw these locomotive from services and all units were scrapped with non preserved.
 
== Former sheds ==
* Pune
* [[Electric Loco Shed, Kalyan|Kalyan]] (KYN)
*  All the locomotives of this class has been withdrawn from service.


==See also==
==See also==


*[[History of rail transport in India]]
*{{section link|Rail transport in India|History}}
*[[Indian Railways]]
*[[Indian Railways]]
*[[Locomotives of India]]
*[[Locomotives of India]]
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*[http://www.irfca.org/faq/faq-loco2e.html]
*[http://www.irfca.org/faq/faq-loco2e.html]
*[http://www.irfca.org India railway fan club]
*[http://www.irfca.org India railway fan club]
{{electric-loco-stub}}


{{Broad gauge locomotives of India |state=collapsed}}
{{Broad gauge locomotives of India |state=collapsed}}


{{DEFAULTSORT:WCM-4}}
[[Category:Electric locomotives of India]]
[[Category:Electric locomotives of India]]
[[Category:1500 V DC locomotives]]
[[Category:1500 V DC locomotives]]
[[Category:Co-Co locomotives]]
[[Category:Co-Co locomotives]]
[[Category:Railway locomotives introduced in 1961]]
[[Category:Railway locomotives introduced in 1959]]
[[Category:5 ft 6 in gauge locomotives]]
[[Category:5 ft 6 in gauge locomotives]]
[[Category:English Electric locomotives]]
[[Category:Hitachi locomotives]]
[[Category:Vulcan Foundry locomotives]]
[[Category:Streamlined electric locomotives]]
[[Category:Scrapped locomotives]]

Latest revision as of 00:01, 15 January 2026

Indian locomotive class WCM-4
WCM-4 is more powerful version of the WCM-3
A WCM-4 at Bombay Victoria Electric loco trip Shed
Type and origin
Power typeElectric
DesignerHitachi
BuilderHitachi
Order number59/459/1/RS(F)
ModelEM/4
Build date18 April 1959
Total produced7
Specifications
Configuration:
​
 • AARC-C
 • UICCo′Co′
 • CommonwealthCo-Co
Gauge5 ft 6 in (1,676 mm)
Bogies3 Axle fabricated frame, Swing bolster with Equalizer beams
Wheel diameterNew: 1,220 mm (4 ft 0 in),
Half worn: 1,182 mm (3 ft 10+1⁄2 in) and
Full worn: 1,144 mm (3 ft 9 in)
Wheelbase2,380 mm (7 ft 10 in)
Length:
​
 • Over couplers20.000 m (65 ft 7+3⁄8 in)
 • Body18.680 m (61 ft 3+7⁄16 in)
Width3.050 m (10 ft 1⁄16 in)
Height4.282 m (14 ft 9⁄16 in)
Frame type3 Axle fabricated frame
Axle load20.83 tonnes (20.50 long tons; 22.96 short tons)
Loco weight125.00 tonnes (123.03 long tons; 137.79 short tons)
Sandbox cap.16 sandboxes each
Power supply110 V DC
Electric system/s1.5 kV DC Overhead
Current pickup(s)Pantograph
Traction motorsHS-373-BR
 • Rating 1 hour765A
 • Continuous620A
Gear ratio16:73
MU workingNot possible
Loco brakeAir/Hand, Regenerative braking
Train brakesVacuum
Compressor7kg/cm²
Safety systemsSlip control, Over voltage relay, No volt relay, Low pressure governor, Vacuum governor Train parting alarms, and Brake cylinder cutoff valve
Performance figures
Maximum speed120.5 km/h (75 mph)
Power output:
​
 • StartingMax: 4,000 hp (2,980 kW)
 • 1 hourMax: 4,000 hp (2,980 kW)
 • ContinuousMax: 3,290 hp (2,450 kW)
Tractive effort:
​
 • Starting31,250 kgf (310 kN)
 • 1 hour25,300 kgf (250 kN)
 • Continuous18,700 kgf (180 kN)
Factor of adh.0.25
Career
OperatorsIndian Railways
ClassEM/4
Numbers20076-20082
LocaleCentral Railways
Delivered1959
First run1959
Last runJanuary 2000
RetiredEarly 2000s
WithdrawnEarly 2000s
Preservednone
DispositionAll scrapped.

The Indian locomotive class WCM-4 was a class of 1.5 kV DC electric locomotives developed in the late 1950s by Hitachi for Indian Railways. The model name stands for broad gauge (W), Direct Current (C), Mixed traffic (M) engine, 4th generation (4). A total of 7 WCM-4 locomotives were built in Japan in 1959 for Central Railways.[citation needed]

History[edit | edit source]

Indian Railways decided to procure seven locomotives from Hitachi. They were manufactured in Japan and shipped to India in 1959. These locomotives had now-common Co-Co wheel arrangement.[1] Initially the WCM-4 class were known as EM/4 class.[2]

See also[edit | edit source]

References[edit | edit source]

  1. ↑ "Refer pg 260" (PDF).
  2. ↑ Gudgin, D.S.E. (1976). Vulcan Foundry Locomotives 1832–1956. Truro: Bradford Barton. ISBN 978-0-85153-215-8.

External links[edit | edit source]

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