This document summarizes the manufacturing of a new type of tank wagon called BTFLN by Braithwaite & Co. Ltd. for Indian Railways. Some key points: 1) Braithwaite successfully manufactured 250 BTFLN wagons on time, on budget, and to a high quality as the first company to be awarded this contract. 2) The BTFLN wagon has several improvements over previous designs like increased carrying capacity, lighter weight, and a bogie-mounted brake system. 3) Due to Braithwaite's success, Indian Railways placed a repeat order for 480 additional BTFLN wagons and has expressed confidence in Braithwaite's ability to manufacture new wagon

1. Braithwaite & Co. Ltd.
(A Government of India Undertaking)
under
Ministry of Railways
5, Hide Road, Kolkata – 700 043.

2. Braithwaite & Co. Ltd.
(BCL)
Welcomes
Juries of Selection Committee,
Engineering Excellence Awards – 2013
To a brief presentation on Project Title
‘BTFLN Wagon manufactured first
time for Indian Railways’
7th October 2013, New Delhi.

3. BCL at a Glance...
• BCL a heavy engineering company, incorporated in 1930 in
Kolkata.
• Nationalized and incorporated as a Government Company in 1976.
• Company transferred to Ministry of Railways w.e.f 06.08.2010.
• Awarded "Turnaround CPSE Award 2010" by BRPSE in March
2011.
• Awarded CII Productivity Award – 2011-12.
• Glorious past showcased includes ‘Howrah Bridge’, ‘Vidya Sagar
Setu’ at Kolkata.
• Company consistently achieving higher Production, Sales &
Profit.

4. Why ‘BTFLN Wagon’ chosen for the Award
• Indian Railways awarded the ‘BTFLN’ Wagon Manufacturing Contract
only to M/s Braithwaite & Co. Limited based on BCL’s past performance.
• The manufacturing of PROTO Wagon was a very challenging task as this
was designed for the first time. Lot of trial assembly and subsequent
changes in fitment of components took place during Proto wagon
manufacturing stage.
• Finally BCL manufactured the wagon after modification of brake
arrangement drawing & incorporation of fabricated T-Section which
were approved by RITES and RDSO.
• This Frameless Wagon is a new breed of petroleum carrier tank wagon
designed with advanced features in comparison to conventional BTPN
Type Tank Wagon.
• The company has successfully manufactured 250 Wagons, as per
Contract Terms maintaining cost, quality & time and these wagons are
running successfully on Railway track.

5. Designed By:
RITES Ltd.
Developed By:
Research Design & Standard Organisation.
(Ministry of Railways)
Manufactured By:
Braithwaite & Co. Ltd.
(A Govt. of India Undertaking)
Ministry of Railways.

6. HYDRAULIC TEST OF BARREL


The barrel complete with internal fittings
including Master Valve & Bottom discharge
Valve after being mounted on the under
frame shall be tested HYDROSTATICALLY
to pressure 2.8 Kg / cm. sq. against
leakage of longitudinal and circumferential
weld seams of Barrel along with fitted
valves.
The pressure is maintained for 30 Minutes
(min.).

7. A BREAK THROUGH TECHNOLOGY
The newly designed tank barrel is inclined at 1
deg towards discharge points to facilitate easy
flow of
POL Products.

8. 
The wagon is manufactured from:
◦ SAILMA 350
◦ IS: 8500 Fe 570B
These high strength micro alloyed steels have higher
yield strength, higher notch toughness, good fatigue
properties, excellent weld ability and good formability.

9. HUCK BOLT –
FASTENING SYSTEM




Heavy duty applications demand tough,
reliable fasteners. For application ranging
from RAIL WAGON to MINING EQUIPMENT,
HUCK BOLT fastening system offers superior
vibration resistance and overall durability.
Low cost fastening system.
Extraordinarily low installation time.
Safe, Worker friendly & above all
Environment Friendly.

10. TEE SECTION
DESCRIPTION
BTFLN
BTPN (conventional)
TEE
SAILMA 350 GRADE
STEEL
X
NEWLY DESIGNED ‘TEE’ ABOLISHES FULL LENGTH UNDERFRAME OF
CONVENTIONAL
WAGON.
DIRECTLY
IMPACT
THE HIGHTENING
PERFORMACE OF WAGON.

11. CENTER SILL
DESCRIPTION
BTFLN
BTPN (conventional)
CENTER SILL
SAILMA 350
GRADE STEEL
IS: 2062 Fe410 CuWA
GRADE STEEL
ADVANTAGE:
SAILMA 350 MICRO ALLOYED STEEL RESULTS
ENHANCED PERFORMANCE & DURABILITY.
NEWLY DESIGNED CENTER SILL IS SHORTER IN
LENGTH – THAT RESULTS LEGHTER WEIGHT &
INCREASES THE CARRYING CAPACITY.

12. BOLSTER
DESCRIPTION
BTFLN
BTPN (conventional)
CONTACT SURFACE
AREA OF BOLSTER
(TOP & BOTTOM)
MORE
LESS
ADVANTAGE:
MORE CONTACT AREA MEANS HIGHER
BEARING CAPACITY THAN ITS PREDECESSOR
‘BTPN’ WAGON

13. SOLE BAR
DESCRIPTION
BTFLN
BTPN (conventional)
SOLE BAR
SAILMA 350
GRADE STEEL
IS: 2062 Fe410 CuWA
GRADE STEEL
ADVANTAGE:
SAILMA 350 MICRO ALLOYED STEEL RESULTS
ENHANCED PERFORMANCE & DURABILITY.
STEEL SECTION IS LESSER THAT IT’S PREDECESSOR
‘BTPN’ WAGON – THAT RESULTS LEGHTER WEIGHT &
INCREASES THE CARRYING CAPACITY.

14. UNDER FRAME



FRAMELESS
UNDERFRAME
DESIGNED TO LOW
WEIGHT & HIGHER
PERFORMANCE.
MANFACTURED
FROM SAILMA: 350
MICRO ALLOYED
STEEL.

15. BOGIE MOUNTED
BRAKE SYSTEM






IMPROVED BRAKING EFFICIENCY.
LESS NUMBER OF PARTS – REDUCED
WEIGHT
UNIFORM SHOE WEAR & WHEEL WEAR.
INCREASED RELIABILITY.
EASY MAINTENANCE.
VERY EASY TO ASSEMBLE – REDUCED
INSTALLATION TIME.

16. BOGIE MOUNTED
BRAKE SYSTEM




ONE OF THE MOST MODERN BRAKE
SYSTEM.
INTEGRATED DOUBLE ACTING SLACK
ADJUSTER.
MAINTAINS A CONSTANT STROKE.
EASILY ADJUSTABLE ON WAGON.

17.  Higher
Carrying Capacity – increases
by 3.67 MT than it’s predecessor
‘BTPN’ Wagon (53 MT).
DESCRIPTION
BTFLN
BTPN (conventional)
CARRYING
CAPACITY
76,000 LTRs
70,000 LTRs
BENEFIT : Can carry 6000 Ltrs more commodity.

18. High Speed
Equipped with HS Bogie
Low Tare Weight
DESCRIPTION
BTFLN
BTPN (conventional)
Bogie
HS Bogie with Spring
Combination 14:12:4
NLB Bogie with Spring
Combination 12:8:4
Tare Weight
27 MT
24.2 MT

19. The newly designed tank barrel is inclined at 1
degree towards discharge points to facilitate
flawless, easy & quick discharging of
Products.
POL

20. There were no cost overrun or time overrun.
Quality of this wagon was of very high
standard resulted in no customer complaint.

21. 250 Wagons have been manufactured and
despatched with last consignment on 30th
September’2012. Because of operational
excellence, Railway Board has given repeat
order of 480 Wagons which is under
execution.

22. This wagon is having the advantage of carrying
7% more POL Products as comparison to its
predecessor BTPN Wagon. This resulted in cost
advantage for Indian Railway.

23. This wagon is designed to run at higher speed
than
BTPN
Wagon
resulting
in
less
transportation time cycle.

24. This wagon is designed with advanced and
faster loading and unloading system resulting
lesser haulage time.

25. This wagon is equipped with state of the art
Bogie Mounted Brake System (BMBS) which is
an advanced braking mechanism. This
increases more safety factor.

26. The design of this wagon is in compliance with
European and American Standard for Tank
Wagon. As it has already been a tested
product hence no foreign support is required.

27. • Higher operational efficiency.
• Innovative indigenous technology.
• Greater self reliance.

28. • Braithwaite has established its position of
having
capability
of
executing
such
innovative wagons with complex design.
• Manufacturing
of
this
wagon
has
substantially improved the Braithwaite’s
credibility among wagon builders.
• Due to successful execution of this new type
wagon, BCL has proved its excellence in
pioneering execution of new type wagon.

29. • Indian Railway because of BCL’s outstanding
performance in BTFLN, has decided to place
repeat order of 480 BTFLN Wagons & the
same is under execution.
• This success of BCL, has been highly
appreciated by Railway Board. Board reposed
their confidence on BCL by deciding
placement of a new type BOBSN (MBS) Wagon
to Braithwaite.

30. • BCL
has
proved
its
readiness
in
manufacturing
new
type
of
wagons
maintaining Cost, Quality & Time.
• In recognition to this Railway Board has
placed repeat order of 480 BTFLN Wagons
which is under execution.
• BCL has shown its potential to penetrate in
export market with this new product.
• This
upgraded
wagon
manufacturing
technology resulted in building the capability
of Braithwaite in manufacturing all types of
newly designed wagons.