A Study on Service & Maintenance of DEMAG

Crane under Greenland Technologies Limited

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Study onService & Maintenance of DEMAG Crane

Under Greenland Technologies Limited

A Practicum Report Prepared as a Part of the Requirements of the Degree of Bachelor of Science in Mechanical Engineering.

Prepared By

Md. Fahad Hossain ID # 12107131

Supervised by

Md. ShariffuzzamaFaculty

Department of Mechanical Engineering

IUBAT—International University of Business Agriculture and Technology

Date: 15th December, 2015

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15th December 2015

The CoordinatorDepartment of Mechanical Engineering

IUBAT-International University of Business Agriculture and Technology

4, Embankment Drive Road, Uttara Model Town,

Sector 10, Dhaka

Subject: Request for the Practicum Report.

Dear Sir,

With due respect, I would like to submit this report as partial fulfillment of the BSME degree, the

topic of “A Study on Service and Maintenance of DEMAG Crane under Greenland Technologies

Limited.”. It was superlative opportunity for me to work on this topic to actualize my theoretical

knowledge in the practical area and to have an enormous experience on the manufacturing process.

Now I am looking forward for your kind assessment regarding this report.

I would be very kind of you, if you please take the trouble of going through the report and

evaluate my performance regarding this report.

Sincerely Yours

Md.Fahad HossainID # 12107131Program: BSME

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15th December 2015

The CoordinatorDepartment of Mechanical EngineeringIUBAT-International University of Business Agriculture and Technology4, Embankment drive Road, Uttara Model Town,Sector 10, Dhaka

Subject: Letter of Transmittal

Dear Sir,

This is a great opportunity & immense for me to submit this report on the topic of “A Study on

Service and Maintenance of DEMAG Crane under Greenland Technologies Limited.” I have

prepared this report as partial fulfillment of the BSME degree.

I have tried my level best to prepare this report to the required standard. It was certainly a great

opportunity for me to work on this paper to actualize my academic knowledge in the practical

arena.

I express my heart full gratitude to you to go through this report and make your valuable

comments. It would be very kind of you, if you please evaluate my performance regarding this

report.

Sincerely Yours

Md.Fahad HossainID # 12107131Program: BSME

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VI

Student Declaration

I hereby declare that the presented report titled “A Study on Service and Maintenance of

DEMAG Crane under Greenland Technologies Limited.” is uniquely prepared by me as a work

report part on my Practicum. I did it with the help and assistance of Service Engineers of

Greenland Technologies Limited.

I also confirm that, the report is only prepared from academic requirement as a partial fulfillment

of BSME degree and not for any other purpose. It might not be used with the interest of opposite

party of the organization.

Sincerely Yours

Md.Fahad HossainID # 12107131Program: BSME

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Acknowledgement

This report which is entitled as “A Study on Service and Maintenance of DEMAG Crane under

Greenland Technologies Limited.” is talking about the practical knowledge of Service and

Maintenance of DEMAG Crane. In this report, I would like to express my gratitude and respect

to some respectable person for their enormous help and giant support.

First of all I would like to thank to I would like to thank again to the respected VC of IUBAT

Prof. Dr. M Alimullah Miyan because he gave the opportunity to study in such a beautiful

university to acquire knowledge on BSME that will be very helpful for our prospective career.

I also thankful to Engr. Abdul Wadud, Coordinator Department of Mechanical Engineering,

and Md. Sharifuzzaman Faculty Department of Mechanical Engineering who was supervised me

in my Practicum and all the teachers of the Department of Mechanical Engineering for providing

their brilliant guidelines regarding this subject matter.

Finally, I would like to thank to Mr. Golam Arham Kibria, for giving me such opportunity to

work with Service and Maintenance of DEMAG Crane. I am also thankful to Mr. Aminul Islam

Sagor for his good cooperation in the service work in different sectors.

Sincerely Yours

Md.Fahad HossainID # 12107131Program: BSME

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Executive Summary

Greenland Technologies Limited, A concern of GETCO Group is one of the Leading Trading

Company in Bangladesh., GETCO Group, started its journey in 1972 and Greenland

Technologies Limited concern of GETCO Group started their journey in 2014, as it is a trading

company they have started their business with four difference Product Crane, Forklift, Cleaning

Item and Air Compressor.Mr. Golam Arham Kibria, who is Head of Operations of Greenland

Technologies Limited. Greenland Technologies Limited providing this four difference product

all over the country. In their company they have strong sales team and Strong service team to

provide the right service to customer. As I worked with DEMAG Cranes & Components I got

very good cooperation from their DEMAG Crane service engineers. They have two service

engineers those trained from DEMAG Crane Manufacturer. It is a matter of great pleasure that in

our country most of the power plant, cement industries, Cable Industries, Steel Mills they have

existing DEMAG Crane. Greenland Technologies Limited supplying DEMAG Cranes Service

and Maintenance in those sectors where there is Existing DEMAG Crane. During my practicum

period, as Trainee Engineers, my responsibilities were to work with Service Engineers in

DEMAG Crane Service and Maintenance in different Power plant, Shipyard and Cable

Industries. At first month, I got concepts about working principles of different components and

systems of the Crane. At second and third months, the Service and Maintenance were done on

the basis of the knowledge of first month along with DEMAG Cranes service Engineer. Thus the

report has been accomplished on the basis of a nice combination of theoretical knowledge along

with practical knowledge.

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Contents

1. Prefatory Part

A. Title ………………………………………………………………………………..I

B. Cover Page ……………………………………………………………..……II

C. Request for Report………………………………………………………………....III

D. Letter of Transmittal ………………………………………………………………IV

E. Forwarding letter ………………………………………………………………..V

F. To Whom May I Concern…….……………………………………………………VI

G. Student Declaration……………………………………………………………….VII

H. Acknowledgement………………………………………………………………..VIII

I. Executive Summary ……………………………………………………………….IX

J. Table of Contents………………………………………………...…….…….... X-XIII

2. Empirical Part

Chapter One (Introduction)

1.1 Origin of the report……. ………………………………………………………...…....02

1.2 Objective………. ……………….……………………………………..……….……....02

1.3 Scope…….……….………………………………………………………….……..…...03

1.4 Background……..………………………………….……………………….……….….03

1.5 Methodology……………………………………………………………….……….…..03

1.6 Limitation………….…………………………………………………….……….….….04

Chapter Two (company overview)

2.1 Greenland Technologies Limited..……………………………………….…….05

2.2 DEMAG Cranes & Components Limited. …………………………….….........06

2.3 Chairman Message…………….…..…………………………………….……...07

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2.4 GETCO Group………………………………………………….…………,,, 08

2.5 Corporate Office ………………………………………………………….... 08

2.6 Company Key Persons………………………………………….……………..09

2.7 Vision………………….……………………………………………...……. 09

2.8 Mission ……………….……………………………………………………….09

2.9 Management Structure ………………………………………………………..10

2.10 Greenland Technologies Limited…………………………………………….11

2.11 Greenland Engineers and Tractors Company ………………………………...11

2.12 GETCO Online Limited. ……………….………………………………….....12

2.13 GETCO Techno labs Limited……………….……………………………………………….…….12

2.14 GETCO Digital Limited ……………………………………….……………..13

2.15 GETCO Ventures International. ……………………………….……………..13

2.16 GETCO Limited ………………………………………………….………….14

2.17 GETCO Trading Limited ………………………………………….………….14

2.18 GECO Agro Vision Limited ……………………………………….…………14

2.19 GETCO Agri Technologies Limited ……………………………….…………15

2.20 GETCO Telecommunications Limited …………………………….…………15

2.21 Regional Office of GETCO Group ……………………………………………15

Chapter Three (Types of Crane)

3.1 Different Categories of Crane. ..………………………………….….…..16

3.2 Standard Crane.... …..…………………………………………………..17-18

3.3 Process Crane ………………………………. ………………………….19

3.4 KBK Crane ………………………….…………………………….…….20

3.5 JIB Crane...…….…………………………………………….……..…..20-21

3.6 Semi Portal and Portal Crane……..…………………….………………..21-22

3.7 under slung Crane …………………………………………………………..23

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Chapter Four (Manufacturing Details)

4.1 DEMAG Crane Manufacturer Overview...……………………………24

4.2 DEMAG Crane Manufacturer Details ……………………………......25

4.3 Crane Design Engineering ………………………………..…………..26

4.4 Girder Manufacturing Process……………………………...…...…….26-29

4.6 Girder Camber and Wheel Alignment Process …………………………30-31

Chapter Five (Different Part of DEMAG Crane)

5.1 Complete DEMAG Crane Layout View… ……………………….32

5.2 Girder …….……………………………………………………..…….33

5.3 DEMAG Rope Hoist…………………………………………………..34-35

5.4 End Carriage ………………………..…………………………………36

5.5 Power Supply ………………………………………………………….37

5.6 Travel Unit ………………………………………………………...…..38

5.7 Control System…………………………………………………………38

5.8 Bottom Hook ……………. …………………………………..………..39

5.9 DEMAG Chain Hoist .…………………………………………………40

5.10 Hoist Motor Description ……………………………………………41-47

Chapter six (Service & Maintenance)

6.1 DEMAG Service ………………………………………………….…......48

6.2 DEMAG Spare Parts Quality ……………………………………………49-50

6.3 Service Activities of Greenland Technologies Limited ………………...50

6.4 DEMAG Crane Installation in Bangladesh …………………………..….54-55

6.5 Existing DEMAG Crane in Bangladesh …………………………………56

6.6 Definition of Maintenance ……………………………………………….58.

6.7 Maintenance Activities …………………………………………………...58

6.8 Maintenance History ……………………………………………………..58

6.9 Maintenance Objectives ………………………………………………….59

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6.10 Types of Maintenance …………………………………………………...59

6.10.1 Run to Failure Maintenance (RTF) ………………………………….60

6.10.2 Preventive Maintenance (PM) ……………………………………….60-61

6.10.3 Corrective Maintenance (CM) ……………………………………….61

6.10.4 Improvement Maintenance (IM) …………………………………….61

6.10.5 Predictive Maintenance (PDM) ……………………………………...62

Chapter Seven (Conclusion & Recommendation)

7.1 Recommendation …………………..…………………………………63

7.2 Conclusion ………………………… …………………………………64

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