I feel satisfied in preparing the project on CLW. It was a great
experience at CLW in training duration. I SURAJ KUMAR
student of BHAGWANT UNIVERSITY, sincerely thanks various
department of CLW for the assistance provided to me in
preparing the report during industrial training. I thank to my
department $ college who has given permission to go for
industrial training in CLW.
Chittaranjan Locomotive Works (CLW) is the dream of the nation’s
visionaries, coming true. The planners of the Nation with their deep
insight and foresight set to build a Loco building Factory in West
Bengal and CLW is that vision, coming true. On the 9th of January
1948, survey of the proposed area was done.
It is the only major Electric Locomotive builder in the country. It is
situated just at the Border of West Bengal and Jharkhand and is at
about 32 km from Asansol and 237 kms from Kolkata.
The Workshop has an area of 18.34 Sq. Km. The issue of setting up a
loco building unit continued to be under active consideration of the
Central legislature and in the late thirties, a committee consisting of
M/s. Humphries and Shrinivasan was appointed to investigate the
possibility of establishing a locomotive manufacturing unit and to
consider its economic viability.
The loco works was initially established for production of 120 average
sized steam locomotives with the capacity to manufacture 50 spare
The production of Electric Locomotives commenced in 1961. In the
process, fifteen versions of electric locomotives were produced by CLW and
the latest in that series is the freight locomotive WAG-7 and
passenger locomotive WAP-4. Pandit Jawaharlal Nehru, the first
Prime Minister of India, commissioned the first 1500 V dc Locomotive
named “LOKMANYA” on the 14th October, 1961. The production of
25 kV ac loco commenced on 16th November, 1963. The first Electric
Loco turned out from CLW, christened as “BIDHAN” was a Broad
Gauge 25 kV ac. Freight Locomotive (WAG-1) of 2840 hp with
maximum speed of 80 km/hr. Subsequently CLW gradually upgraded the
horsepower of Electric Loco from 2840 hp to 6000 hp and maximum speed
from 80 Km/h to 160 km/h. CLW also built 25 kV ac/1500 V dc, ac/dc
Loco, WCAM-1 for hauling Mail / Express Trains from BRC to BCT
on Western Railway.
CLW is an ISO-9001 unit and has a well-established quality
system. The loco works of CLW obtained its
ISO-9001certification on 13.07.96 while the ISO-9002: 1994
certification for Steel Foundry was obtained on 08.08.1996. Up
gradation to ISO 9001:2001 for both Loco Works and Steel
Foundry was completed on 25.09.2003. First Surveillance Audit
was conducted during 06.10.2004 to 08.10.2004 and the Second
Surveillance Audit was conducted during 06.09.05 to 09.09.05.
Renewal audit was conducted from 28th August to 30th
August, 2006. It is worth mentioning that CLW acquired
ISO- 9001:2008 certificate on 22nd Oct 2009 for another three
years for our commitment to Quality Management system.
Improved Environmental Management System, prevention of
pollution and continuous improvement of environment
Compliance with relevant environmental legislation and
requirements as determined by appropriate regulatory and
other corporate bodies.
Conservation of natural resources and implementation of
fundamentals of waste management.
Setting environmental objectives and Targets and monitoring
progress for sustainable development.
Ensure awareness of all employees and contractors regarding
their environmental roles and responsibilities.
Waste generated in Shops have been reduced by 5% from the previous
year by improvement of operational procedures.
Air Pollution Control Device has been installed in Integrated Paint
Shop to reduce air pollution.
Dust collector has been installed in Sand Plant/SF for reduction of air
To reduce air pollution, stack height of D.G.sets in Central Power
House has been increased.
Air Pollution Control Device has been installed at GEC Arc Furnaces in
Consumption of water in plant area has been reduced by 5% by
arresting major leakages and provision of water meters have been
made for regular monitoring of water consumption.
New Sewage Treatment Plant (Bio-filter Plant) has been commissioned
and under operation for improvement of effluent quality before
discharge to surface inland and nearby water bodies.