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In the year 1877, rail transportation was introduced in Myanmar. At that time, there was no workshop for repair and maintenance of coaches and wagons. Therefore, the carriage and wagon repairing works were done at the Insein Steam Locomotive Workshop in Yangon until 1911. As the Myanmar Railways extended its transport services, a separate workshop was in necessity. Hence, this Carriage and Wagon Workshop was constructed at Myitnge near Mandalay.

Location and Erection of Myitnge Workshop

Myitnge workshop is situated at Myitnge near Mandalay in Mandalay Division. It is 377.25 miles (607.37 km) from Yangon and 8 miles (13 km) from Mandalay. It is on Yangon-Mandalay main railways line. Yangon-Mandalay Highway also passes near and east of the workshop. At the south of the workshop is flowing Myitnge River. Myitnge Workshop consists of two workshops: Repair Workshop and Construction Workshop.

The erection of the Repair Workshop began in 1905 and it was completed in 1911. In 1912, the machineries from Insein Workshop were transferred to Myitnge and repairing works commenced in full swing. The workshop covers an area of 69.59 acres (0.282 sq-km). The workshop estate, including residential quarters is 783 acres (3.168 sq-km).

The reasons of choosing Myitnge for Repair Workshop are :-

  1. It is situated in the middle of the rail line system.

  2. It has low humidity weather suitable for quick drying of painted carriage and wagon.

  3. Availability of timber for repair and construction of carriage and wagon.

  4. Availability of clean and fresh water supply.

The construction of coaches and wagons was started in the year 1947 and since then many new coaches and wagons are being constructed. But repair works and construction works were carried out in the same place causing congesting and hampering production. Therefore additional workshop for construction works is needed. The new Construction Workshop was built at the north of existing Repair Workshop in 1969 and completed in 1973. Since 1976 construction works of carriages and wagons had been carried out in this workshop.

The reasons of establishing a separate Construction Workshop are:-

(i) Repair and construction was carried out in the same place causing congesting and hampering production. To boost production, a construction workshop was built separately.

(ii) To produce carriage and wagons with advanced modern technology.

  1. To produce high-quality spare parts.

Organization of Myitnge Workshop

Myitnge Workshop is composed of two workshops under General Manager's Office:

  • Repair Workshop and

  • Construction Workshop.

The sub-shops in each Workshop are:-

General Manager's Office


 

Repair Workshop

 

 

Construction Workshop

1.

Coaching Shop

 

1.

Plater Shop

2.

Painting Shop

 

2.

Pre-assembly Shop

3.

Machine and Fitting

 

3.

Steel Fabrication I

4.

Saw Mill

 

4.

Painting Shop

5.

Electric Shop

 

5.

Interior Shop

6.

Wagon Shop

 

6.

Electric Shop

7.

Steel Fabrication Shop II

 

7.

Millwright

8.

Stores

 

8.

Stores

9.

Smithy Shop

 

9.

Production and Quality Control

10.

Millwright and Power house

 

 

 


Work Force of Myitnge Workshop

At present the total work force of Myitnge Workshop is as below:-

* Total No. of Officers 12

* Supervisory Staff 297

* Other Rank 1110

* Total No. of Staffs 1419

The working hour is from 07:00 to 11:00 hr and from 12:00 to 16:00 hr. From 11:00 to 12:00 is lunch break. Length of Rail Tracks in the Workshop is 36969 feet long in total. There are 12 nos. of Railways Quarters and 1145 nos. of housing facilities.

Production Works of Myitnge Workshop

There have two major production works:

  • Periodical Repair (Heavy Repair) of coaches and wagons

  • New Construction of coaches and wagons

Generally, the periodical repair works are carried out in Repair Workshop and new construction works are done in Construction Workshop. The installed capacity of the Myitnge Workshop is in periodical repair 432 vehicles of coaches and 1200 units of wagons and in new construction 60 nos. of coaches or 120 nos. of wagons annually.

Improved Changes in Construction Techniques

The construction of coaches and wagons commenced in the year 1947. At that time, there was only one workshop and the new construction works were done in parallel with repairing works. In 1973, a separate workshop for new construction works was erected and from then on the new construction works of coaches and wagons were done in the Construction Workshop.

The construction methods changed and developed over time to time.

It started with wooden body. The posts were installed on imported steel under frame and then wooden body was constructed.

In the year 1967, the method of construction changed to installing of steel body on steel under frame by the riveting method.

As welding is preferable to the riveting, the steel bodies were welded on the steel under frame since 1980. The welding not only provides a better strength but also a better attractive appearance. But welding needs a higher technology.

Formerly, the construction of body was done on the frame directly. But since 1986, sides, ends and roofs of the body were first separately assembled in the separate jigs. Then the finished sides, ends and roofs were assembled together on the imported under frame to build the car body. The application of the jigs reduced the thermal distortion in welding and the dimensional deviation of the body.

In 1992, Myitnge Workshop advanced in construction ability by constructing coaches and wagons in Heavy Knock Down condition, i.e. raw materials and some items like bogie, wheel and axle and roller bearings … etc., were imported and the car was completely constructed in Myitnge Workshop.

In the above construction methods, the imported completely assembled bogies were used. At 1997, bogie frames were constructed successfully.

The changes and improvements of construction methods are tabulated as below:-


1947

- Imported Under Frame

- Installing posts

- Wooden body

1967

- Imported Under Frame

- Installing posts

- Steel body with riveting

1980

- Imported Under Frame

- Installing posts

- Steel body with welding

1986

- Imported Under Frame

- Jigs and Fixtures

- Steel body with welding (Light Knock Down)

1992

- Constructed Under Frame

- Jigs and Fixtures

- Steel body with welding (Heavy Knock Down)

1997

- Constructed Under Frame

- Constructed Bogie Frame

- Jigs and Fixtures

- Steel body with welding


New Construction Works of Construction Workshop

In the year 1982, the Railways Modernization Project Stage I was started with the Oversea Economic Co-operative Funds (Japan) OECF loan. The Myanmar Railways made a contract with Daewoo Corporation, Republic of Korea. The contract was for purchase of construction facilities, 20 Nos. of completely constructed Coaches, 25 Nos. of completely constructed Wagons and local construction of 51 Nos. Coaches and 75 Nos. Wagons in the Construction Workshop at Myitnge with supply of Semi-Knock down parts from Daewoo Corporation. As continuation to above project, the Railways Modernization Project stage II was started in 1991. The project content was to purchase of 2 Nos. Passenger Coaches and 10 Nos. Freight Wagons, and Local construction of 70 Nos. Passenger Coaches and 130 Nos. Freight Wagons in Heavy-knock down condition; the workshop was established with following manufacturing facilities,

- Machineries for construction 101 Nos.

- Welding machines 187 Nos.

- Jigs and fixtures 26 Nos.

- Material handling equipments 24 Nos.

After the OECF Projects, by utilizing their facilities, Myanmar Railways has carried out so many Rolling Stock Construction projects with different foreign countries like Republic of Korea and People's Republic of China. Moreover, Myitnge Workshop has achieved in rehabilitation and new construction of Passenger Coaches and Freight Wagons under domestic projects using material available in local market. And construction of MRB-1 Bogie by fabrication was also successfully carried out and new type of coaches modified from existing design were constructed too. Up to now, OECF projects facilities were maintained properly to have their normal functions. Most of the facilities (about 98% of installed condition) are still in use.

The last project is new constructions of (30) MBDHV Hopper Wagons for Rehabilitation of Yangon-Nyaunglaybin rail line. This project is carried out by Myanma Railways and Daewoo International Corp. of Korea under OPEC Loan and the supplier is SLS Heavy Industries of Korea.

Construction of Coaches and Wagons with Foreign Loan Basis

Since OECF Stage (I) Project, the purchase of fully erected vehicles and newly constructed vehicles in knock down condition are as below:-


Srl

Contract No.

QUANTITY

Remarks

 

 

Passenger

Coaches

 

Freight

Wagons

Fully

Erect

Knock

Down

Fully

Erect

Knock

Down

1

3/BRC/OECF(MC)/82-83

20

51

25

75

OECF/Stage I/Daewoo

2

3/BRC/OECF(MC)/85-86

2

70

10

130

OECF/Stage II/Daewoo

3

1/MR/HUAXIA(91-92)

4

19

-

-

Sifang /China

4

1/MR/YMC/(93-94)

4

16

14

8

Tangshan / China

5

2/MR/YMEC/(93-94)

-

30

-

-

Sifang / China

6

2/MR/OPEC(MC)/(95-96)

2

11

-

-

Sifang / China

7

1/MR/Complant/(95-96)

-

12

-

10

Sifang / China

8

1/MR/Complant/(96-97)

-

28

-

-

Sifang / China

9

1/EDCF/MR/MYA-4/(97-98)

-

70

-

-

EDCF/Daewoo

10

3/MR/OPEC6(M)/2003-04(III)

 

 

10

30

OPEC/Daewoo

11

4/MR/INDIA(M)/2004-05

36

 

 

 

INDIA LOAN

 

TOTAL

68

307

59

253

 


By Japan, Korea and China Loans, 307 nos. of coaches and 253 nos. of wagons totally 560 nos. were constructed in Myitnge Workshop. Formerly 186 nos. of under frames were imported and bodies were constructed on these frames but lately under frames were also constructed in Myitnge Workshop. Since not purchasing just fully erected vehicles but by using raw materials and parts new vehicles were constructed in knock down condition, the Workshop can acquire advanced vehicle construction techniques, experience and skill and also saved foreign currency. The Coaches and Wagons of 560 nos. were constructed as per table below:-


Srl

Type

Qty'

1

Upper Class

63

2

Ordinary Class

211

3

Brake Van

33

4

Freight Wagons

253

 

Total

560


Construction of Coaches and Wagons with Local Material

Using the facilities from OECF Projects and the acquired construction techniques and experiences from those Foreign Loan Projects, the Myitnge Workshop carried out the new construction, rehabilitation and modification of coaches and wagons with local material and the constructed quantity is as below:-


Passenger Coaches

Freight Wagons

New

Rehab:

Modified

New

Modified

309

49

2

29

120


New Construction Project Under EDCF Loan

The modern construction techniques of coaches and wagons are mainly based on Korean railway technology transferred during the OECF projects. In OECF Project I and II, the projects are implemented with Myanma Railways and Daewoo Corp. of Korea. In 1997, a new construction project under Korean Loan (EDCF Loan) was implemented. The contract between Myanma Railways and Daewoo Corp. for new construction of 10 nos. Brake Van and 60 nos. Ordinary Class Coaches was signed on 3rd., November, 1997. The contract value was 16,571,000,000 Won. The project was started in 27th., July, 1998 and completed in 12th., February, 2000. As technical cooperation, 4 persons of Myanma Railways were trained in Korea for 2 weeks. And 6 persons from Daewoo came to Myitnge Workshop for technical assistance and project supervision for 19.6 man-months in total. During the project, the computerized production control was trained by Daewoo persons, and supervising stuffs of Myitnge Construction Workshop attended. And training for automatic coupler and air brake system were carried out too.

Construction of Bogies

For new construction of coaches under domestic projects, needed bogies were supplied by repairing salvaged bogies from written-off coaches. But it cannot fulfill the requirement, so new bogies were constructed and had got success. New bogie construction is as per below:


Srl

Description

Qty'

Year

1

Twin Barrow

4

1997

2

MRB-1

138

2000-2011

3

Barber

20

2005-2006

4

Air Bag

2

2008-2009

5

Y 1000

24

2008-2009

6

MRB-1

100

Under Construction


The Myitnge Workshop was established for more than 90 years and had much experiences and skills in repairing of coaches and wagons and in new constructing works too. As described above, the Workshop is also capable of design modification works and had approved successful results. In near future the Workshop will be able to design new coaches and wagons by itself and will be major role in Myanma Railways as ever.

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