EN ISO 15236-2:2017

SLOVENSKI STANDARD
01-marec-2017
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SIST EN ISO 15236-2:2004
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Steel cord conveyor belts - Part 2: Preferred belt types (ISO 15236-2:2017)
Stahlseil-Fördergurte - Teil 2: Bevorzugte Gurttypen (ISO 15236-2:2017)
Courroies transporteuses à câbles d'acier - Partie 2: Types de courroies recommandées
(ISO 15236-2:2017)
Ta slovenski standard je istoveten z: EN ISO 15236-2:2017
ICS:
53.040.20 Deli za transporterje Components for conveyors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 15236-2
EUROPEAN STANDARD
NORME EUROPÉENNE
January 2017
EUROPÄISCHE NORM
ICS 53.040.20 Supersedes EN ISO 15236-2:2004
English Version
Steel cord conveyor belts - Part 2: Preferred belt types
(ISO 15236-2:2017)
Courroies transporteuses à câbles d'acier - Partie 2: Stahlseil-Fördergurte - Teil 2: Bevorzugte Gurttypen
Types de courroies recommandées (ISO 15236- (ISO 15236-2:2017)
2:2017)
This European Standard was approved by CEN on 24 January 2017.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 15236-2:2017 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 15236-2:2017) has been prepared by Technical Committee ISO/TC 41 “Pulleys
and belts (including veebelts)” in collaboration with Technical Committee CEN/TC 188 “Conveyor belts”
the secretariat of which is held by SNV.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by July 2017, and conflicting national standards shall be
withdrawn at the latest by July 2017.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
This document supersedes EN ISO 15236-2:2004.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 15236-2:2017 has been approved by CEN as EN ISO 15236-2:2017 without any
modification.
INTERNATIONAL ISO
STANDARD 15236-2
Second edition
2017-01
Steel cord conveyor belts —
Part 2:
Preferred belt types
Courroies transporteuses à câbles d’acier —
Partie 2: Types de courroies recommandées
Reference number
ISO 15236-2:2017(E)
©
ISO 2017
ISO 15236-2:2017(E)
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2017 – All rights reserved

ISO 15236-2:2017(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and units . 1
5 General remarks . 2
6 Belt types A . 2
7 Belt types B . 4
8 Belt types C . 5
ISO 15236-2:2017(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment,
as well as information about ISO’s adherence to the World Trade Organization (WTO) principles in the
Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.
The committee responsible for this document is ISO/TC 41, Pulleys and belts (including veebelts),
Subcommittee SC 3, Conveyor belts.
This second edition cancels and replaces the first edition (ISO 15236-2:2004), which has been
technically revised.
A list of all the parts in the ISO 15236 series can be found on the ISO website.
iv © ISO 2017 – All rights reserved

ISO 15236-2:2017(E)
Introduction
Steel cord conveyor belts are mainly long belts which are manufactured by joining several delivery
lengths on the site. To achieve joints with a high dynamic capability from belts supplied by various
manufacturers, it is necessary to standardize some features, e.g. thickness of carcass or cord pitch and
cord diameter.
INTERNATIONAL STANDARD ISO 15236-2:2017(E)
Steel cord conveyor belts —
Part 2:
Preferred belt types
1 Scope
This document specifies preferred types of conveyor belts with steel cords in the longitudinal direction
as reinforcement. The belt type series in this document are based on the general requirements for
construction given in ISO 15236-1.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition indicated applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 15236-1:2016, Steel cord conveyor belts — Part 1: Design, dimensions and mechanical requirements for
conveyor belts for general use
ISO 15236-4, Steel cord conveyor belts — Part 4: Vulcanized belt joints
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
4 Symbols and units
For the purposes of this document, the symbols and the units given in Table 1 apply.
Table 1 — Symbols and units
Symbol Explanation Unit
B Belt width mm
F Breaking strength of the cord taken from the cured belt kN
bs
K Nominal breaking strength per width of belt N/mm
N
b Calculated edge width mm
K
d Cord diameter mm
n Number of cords —
s Cover thickness mm
s Carcass thickness mm
ISO 15236-2:2017(E)
Table 1 (continued)
Symbol Explanation Unit
t Cord spacing/pitch mm
Minimum value —
min
Maximum value —
max
5 General remarks
The belt types described in this document are a selection out of the unlimited number of possible
constructions; belts of the types A and B have been manufactured and installed in large quantities.
It is the general conception of these belt types that belts of a certain nominal breaking strength have
equal cords and cord pitches or at least equal thickness of the carcass.
The requirements regarding belt design, i.e. cord diameter and cord pitch, depend on the mode of joint
that will be applied. In accordance with ISO 15236-4, there are three types of vulcanized joints:
— interlaced stepped joints;
— plain stepped joints;
— finger joints.
For high performance stepped joints, it is essential that the belts to be joined have equal cord pitch
and cord diameter. For belts to be joined by finger joints, the cord pitch and cord diameter are of less
importance; what matters is a similar thickness of the carcass. In Tables 2, 3, 4 and 5, therefore, cord
diameter, cord pitch and number of cords are specified only for those types which are usually joined by
stepped joints, i.e. belt types A1, A2 and B2.
The cord numbers given in Tables 2, 3 and 5 are for guidance only. They result from Formula (1):
KB×
N
n = (1)
min
F ×1000
bs
and from the requirement that the edge width shall be not larger than 40 mm and not smaller than
15 mm, i.e.
15 ≤ b ≤ 40
k
A higher number of cords as well as a smaller number of cords can be applied provided that the
requirements for minimum breaking strength specified in ISO 15236-1 and ISO 15236-4 are met. The
belt breaking strengths are calculated by Formula (2):
Fn××1000
bs
K = (2)
N
B
For the purposes of this document, the symbols and units given in Table 1 apply.
6 Belt types A
Belt types A shall be manufactured with steel cords where the individual wires have been zinc coated by
a hot dip process. Requirements for belt types A1 and A
...