IS 15427 (2004): Conveyor Belting of Elastomeric and Steel Cord … · IS 15427:2004 “ Indian...

12
Disclosure to Promote the Right To Information Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public. इंटरनेट मानक !ान $ एक न’ भारत का +नम-णSatyanarayan Gangaram Pitroda “Invent a New India Using Knowledge” प0रा1 को छोड न’ 5 तरफJawaharlal Nehru “Step Out From the Old to the New” जान1 का अ+धकार, जी1 का अ+धकारMazdoor Kisan Shakti Sangathan “The Right to Information, The Right to Live” !ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता ह Bharthari—Nītiśatakam “Knowledge is such a treasure which cannot be stolen” IS 15427 (2004): Conveyor Belting of Elastomeric and Steel Cord Construction for General Material Handling [PGD 31: Bolts, Nuts and Fasteners Accessories]

Transcript of IS 15427 (2004): Conveyor Belting of Elastomeric and Steel Cord … · IS 15427:2004 “ Indian...

Page 1: IS 15427 (2004): Conveyor Belting of Elastomeric and Steel Cord … · IS 15427:2004 “ Indian Standard CONVEYOR BELTING OF ELASTOMERIC AND STEEL CORD CONSTRUCTION FOR GENERAL MATERIAL

Disclosure to Promote the Right To Information

Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public.

इंटरनेट मानक

“!ान $ एक न' भारत का +नम-ण”Satyanarayan Gangaram Pitroda

“Invent a New India Using Knowledge”

“प0रा1 को छोड न' 5 तरफ”Jawaharlal Nehru

“Step Out From the Old to the New”

“जान1 का अ+धकार, जी1 का अ+धकार”Mazdoor Kisan Shakti Sangathan

“The Right to Information, The Right to Live”

“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता है”Bhartṛhari—Nītiśatakam

“Knowledge is such a treasure which cannot be stolen”

“Invent a New India Using Knowledge”

है”ह”ह

IS 15427 (2004): Conveyor Belting of Elastomeric and SteelCord Construction for General Material Handling [PGD 31:Bolts, Nuts and Fasteners Accessories]

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IS 15427:2004 “

Indian Standard

CONVEYOR BELTING OF ELASTOMERIC AND STEELCORD CONSTRUCTION FOR GENERAL MATERIAL

HANDLING — SPECIFICATION

.—

ICS 53.040.20; 73.100.01

@BIS 2004

BUREAU OF IN DIAN STANDARDSMANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

May 2004 Price Group 3

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Pulleys and Belts Sectional Committee, BP 29

FmEwoRDThii Indian Standard was adopted by the Bureau of Indian Standards, after the draft finalized by the Pulleys and BeltsSectional Committee had been approved by the Basic and Production Engineering Division Council.

This standard covers the requirement for conveyor belting of elastomeric and steel cord construction for generalmaterial handling. The requirement of conveyor belting of elastomeric and steel cord construction for undergroundmines and such hazardous applications are covered in IS 15143:2002 ‘Conveyor belting of elastomeric and steelcord construction for underground mines and such other hazardous applications — Specification’.

For the purpose of deciding whether a particular requirement of this standard is complied with, the final value,observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance with IS 2:1960‘Rules for rounding off numerical values (revised)’, The number of significant places retained in the rounded offvalue should be the same as Wat of the specified value in this standard.

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IS 15427:2004

Indian Standard

CONVEYOR BELTING OF ELASTOMERIC AND STEELCORD CONSTRUCTION FOR GENERAL MATERIAL

HANDLING — SPECIFICATION

1 SCOPE

This standard covers the requirement for conveyor beltingof elastomeric and steel cord construction for generalmaterial handling.

2 REFERENCES

The following Indian Standards contain provisions whichthrough reference in this text, constitute provisions ofthis standard. At the time of publication, the editionsindicated were valid. All standards are subject to revisionand parties to agreements based on this standard areencouraged to investigate the possibility of applying themost recent editions of the standards indicated below:

IS No. Title

3400 (Part 4) : Methods of test for vulcanized rubbers:1987 Part 4 Accelerated ageing (second

revision)

15143:2002 Conveyor belting of elastomeric andsteel cord construction for under-ground mines and such otherhazardous applications —Specification

3 DIMENSIONS

3.1 Length

The length of belting and tolerance thereon shall be inaccordance with the following requirements:

a) The length of belting shall be free from factory madesplices.

b) There shall be no negative tolerance on beltingmanufactured to a length specified by the purchaser.

NOTE — Where multiple rolls are supplied for use on agiven conveyor, the ‘no negative’ tolerance applies only to

the overall length.

3.2 Width

3.2.1 Tolerance on Belt Width

Unless otherwise agreed with the manufacturer and the

user, the width of the belting shall at no point vary”fromthe nominal width by more than the amount given inTable 1.

Table 1 Tolerence on Belt Width(CZuuse 3.2.1)

All dimensions in miltimetres.

S1 No.

(1)

i)

ii)

iii)

iv)

v)

vi)

vii)

viii)

Nomimd Belt Width

(2)

800

900

1 000

1 050

1 200

1350

1 400

1500

Tolerance

(3)

*8

*9

* 10

A 10

* 11

* 12

& 12

* 12

ix) 1600 * 12

x) 1 800 * 14

xi) 2000 * 14

xii) 2200 * 15

xiii) 2400 * 15

xiv) 2500 * 15

3.2.2 Edge Width Free of Cord

At each edge of the behing the distance between theedge and the outer surface of the outer cord shfil be notIess than 15 mm and not more than 50 mm.

3.3 Thickness of Belt and Covers

Specified nominal belt thiclmess = Nominal top coverthickness + Nominal bottom cover thickness+ Nominalcord diameter

3.3.1 The methods of measuring belt thickness andcover thickness shall be in accordance with Annex Aand Annex B of IS 15143.

1

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IS 15427:2004

3.3.2 Tolerance on Belt Thickness

For belt thickness <20 mm + 1()percent–1.Omm

For belt thickness 220 mm + 10 percent– 1.5 mm

The difference between any two of the measurementstaken shall not exceed 10 percent of the mean beltthickness.

3.3.3 Cover Thickness

The cover thickness at any one point is the distance fromthe outer surface of the cord to the surface of the belt.The specified cover thickness shall incIude anytransverse re-enforcement, if any. The mean coverthickness shall be within -1.0 mm and + 1.5 mm of thespecified nominal cover thickness.

Where visual examination of vertical cord positionindicates the necessity of measuring cover thicknessabove or below several individual cords, this shall becarried out, using a steel ruler graduated in 0.5 mm or adepth gauge, but ignoring any local surthce unevenness(for example : brands). The cover thickness above orbelow any cord shall not vary from mean cover thicknessby more than* 1.5 mm.

4 GENERAL REQUIREMENTS

4.1 Construction

The belting shall primarily consist of one layer oflongitudinal steel cords embedded in elastomericcompounds. Additional transverse reinforcements maybc included. The whole belt shall be cured or vulcanizedtogether in accordance with the best manufacturingpractice. The belt edges shall be completely sealedagainst ingress of moisture by elastomeric compounds.Suggested parameters of conveyor belting are given inTable 2.

4.2 Steel Cord

4.2.1 The cords shall consist of wire ropes, constructed towithstand the effects of tlexing during the life of belting.The tolerance on the chosen diameter of the cords shallbe as given in Table 3.

4.2.2 The method of determining cord diameter shall bein accordance with Annex C of IS 15143.

4.2.3 The wires of the raw cord shall be protected againstcorrosion during transport and storage and coated ifnecessary, to provide the required adhesion.

4.3 Belt Data

The following data shall be specified by the supplierwhen either applying or tendering for a specificapplication:

a) Minimum belt strength, in kN/m;

b) Nominal belt thickness and nominal cover thick-ness, in mm;

c) Nominal cord diameter in mm and cord construc-tions;

d) Minimum cord strength, in kN;

e) Nominal cord pitch, in mm;

f) Nominal belt width, in mm; and

g) Number of cords.

4.4 Cord Pitch

Cords should be evenly spaced across the width of thebelting. When belting is tested in accordance withAnnex D of IS 15143, the tolerance on any individualcord pitch compared to the average cord pitch shallbe* 1.5mm, except that 5 pereent of the cords may exceedthis tolerance by not more than 10 percent of the meanspacing.

4.5 Joints in Cord

Cord joints shall be avoided, as far as possible. In anylength of finished belting, the number of individualspliced cord joints permitted shall be as follows:

a) Not more than one joint in any one cord,

b) Not more than one cord joint per 10 m of belting,

c) Not more than one cord joint in belts containingup to 50 cords,

d) Not more than two cord joints in belts containing51 to 100 cords, and

e) Not more than three cord joints in belts containingover 100 cords.

4.6 Freedom from Defects

The surface of finished belting shall be free from blisters,pitting or other major surface flaws and shall becompletely sealed against ingress of moisture.

5 TESTS

5.1 Tensile Strength of Belt and Cords

5.1.1 The breaking strength of the belt shall be calculatedfrom the brealdng strength of the cords. The measured

‘1

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Table 2 Designation and Suggested Parameters of Conveyor Beking ofElastomeric and Steel Cord Construction

(Clause 4.1)

ST 800 11.6 13.8 42 45 1 52 56

ST 900 14.7 15,3 37 40 47 50

ST 1000 16.5 15.3 37 40 47 50

ST 1120 18.5 15.3 37 40 47 50

ST 1250 20.6 15.3 37 40 47 50

ST 1400 23.1 15.3 37 40 47 50

ST 1600 29.1 17.3 33 36 42 45

ST 1800 32.7 17.3 33 36 42 45

ST 2000 36.4 17.3 33 36 42 45

ST 2240 41.0 17.3 33 36 42, 45

ST 2400 51.1 19.4 30 32 37 40

ST 2600 57.1 19.4 30 32 37 40

ST3 150 64.6 19.4 30 32 37 40

ST 3550 72.8 19.4 30 32 37 40

ST 4000 82.0 19.4 30 32 37 40

ST4 500 92.3 19.4 30 32 37 40

ST 5000 102.0 19.4 - - - -

ST 5500 113.5 19.4 - - - -

ST 6000 133.0 20.0 - - - -

Belting Steel Cord3esig- Belting

Number

]ation Reinforcement Belt Width, mm

Cord Cord 600 650 750 800 850 1000 1050 1200 1400 1500 1600 1800 2000 2200 2500 3000 3500

Bmking Pitch,

Force, mm

Min, kN

:1) (2) (3) (4) (5) (6) (7) (8) (9) (lo) (11) (12) (13) (14) (15) (16) (17) (18) (19) (20)

ST 500 7.3 13.8 42 45 52 56 63 70 74 84 99 106 113 128 142 156 178 215 219

ST 560 8.2 13.8 42 45 52 56 63 70 74 84 99 106 113 128 142 156 178 215 219

ST 630 9.3 13.8 42 45 52 56 63 70 74 84 99 106 113 128 142 156 178 215 219

ST71O 10.3 13.8 42 45 52 56 63 70 74 84 99 106 113 128 142 156 178 215 219

63 70 74 84 99 106 113 128 142 156 178 215 219— —— .56 63 66 76 89 96 102 115 128 141 161 193 207

56 63 66 76 89 96 102 115 128 141 161 193 207

56 63 66 76 89 96 102 115 128 141 161 193 207

56 63 66 76 89 96 102 115 128 141 161 193 207

56 63 66 76 89 96 102 115 128 141 161 193 207

102 113 124 142 171 183

102 113 124 142 171 183

102 113 124 142 171 183

102 113 124 142 171 183

91 101 111 127 152 163

91 101 111 127 152 163

91 101 111 127 152 163

91 101 111 127 152 163

91 101 111 127 152 163

91 101 111 127 152 163

91 101 111 127 152 163

91 101 111 127 152 163

50 56 59 67

50 56 59 67

50 56 59 67m45 I 50 I 52 t 60

l-1--L45 50 52 60

45 50 52 60

45 50 52 60

45 50 52 60

43 48 50 58

79

79

79

79

70

70

70

70

70

70

70

70

68

85

85

85

85

75

75

75

75

75

75

75

75

73

90

90

90

90

81

81

81

81

81

81

81

81

78 88 98 108 I 123 148 158

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.

IS 15427:2004

c) Belting above 1600 mm Not more thanwide *80 mm

6 MARKING

6.1 Belting shall be permanently marked using characters20 mm to 50 mm high. The marking shall be on one edgeonly at intervals of not more than 15 m approx and100 mm from and parallel to the belt edge (see Fig. 1).Each group of marking shall be parallel to the belt edgeand shall include the following information:

a) Designation of the belting, (see Table 2);b) Grade of the belting in accordance with the

approval number of the statutory authority, whereapplicable;

c) nickness of the top cover followed by the thick-ness of the bottom cover expressed in mm (see 3.3k

d) Manufacturer’s serial numbe~

100

e) Year of manufacture;f) Manufacturer’s identification or trade-mark andg) Progressive station numbers.

6.2 BIS Standard Mark

The Belting may also be marked with the Standard Mark.

6.2.1 The use of the Standard Mark is governed by theprovisions of the Bureau of Indian StandardsAct, 1986and the Rules and Regulations made thereunder. Thedetails of conditions under which the licence for the useof the Standard Mark maybe granted to manufacturers orproducers may be obtained from the Bureau of Indianstandards.

7 S’IORAGEAND HANDLJNG

Conveyor belting shall be stored under conditions thatdo not adversely affect the properties of the belting and

15000I

20 TO 50

~1s

Example

The following example shows a markhg scheme in the sequence required

Designation-800 ~ 16‘0033

::==

Belt grade~

Year of manufacture

BRAND

Manufacturer I

Progressive Station

NOTE — Manufacturers making a statement of compliance with this standard on a product, packaging or promotional material

related to that product are advised to ensure that such compliance is capable of being verified.

Fm. 1 MARKING OFBELTING

5

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IS 15427:2004

shall be handled during transit andin storage in such amanner as to avoid damage to the belting and not createa hazard.

8 SAMPLING AND TESTING

A sample taken between two successive lengths shall bedeemed to represent both lengths. A sample shall not betested less than 48 hours after completion of manufacture.

Number of samples to be taken for testing shall be basedon belt length as given below:

Belt Length, m Number ofSamples

up to and including 500 1

>500< 1000 2

>1OOO<2OOO 3

>2000< 3500 4

>3500s 5000 5

>5000s 7000 6

>7000S 1000O 7

for each additional 5000 1

.—

6

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Bureau of Indian Standards

BIS is a statutory institution established under the Bureau of Indian Standards Act, 1986 to promote

harmonious development of the activities of standardization, marking and quality certification of goods

and attending to connected matters in the country.

Copyright

BIS has the copyright of ail its publications. No part of these publications may be reproduced in any formwithout the prior permission in writing of BIS. This does not preclude the free use, in the course ofimplementing the standard, of necessary details, such as symbols and sizes, type or grade designations.Enquiries relating to copyright be addressed to the Director (Publications), BIS.

Review of Indian Standards

Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewedperiodically; a standard along with amendments is reaffirmed when such review indicates that no changes areneeded; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standardsshould ascertain that they are in possession of the latest amendments or edition by referring to the latest issue of‘BIS Catalogue’ and ‘Standards: Monthly Additions’.

This Indian Standard has been developed from Doc : No. BP 29 (008 1).

Amendments Issued Since Publication

Amend No. Date of Issue Text Affected

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