SIST EN ISO 1089:2023

• Abstract:

  Refers to taper dimensions and tolerances for electrode caps, electrode adaptors, electrode holders and similar parts, where the electrode force Fmax, given for diameter d1 in tables 1, 2 and 3 is not exceeded. Establishes dimensions, designation and marking. Cancels and replaces ISO Recommendation R 1089-1969, of which it constitutes a technical revision.

• Status: Published
• Public Enquiry End Date: 14-Dec-2022
• Publication Date: 27-Aug-2023
• ICS: 07.100.30 - Food microbiology
• ICS: 25.160.30 - Welding equipment
• Technical Committee: VAR - Welding
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 08-Aug-2023
• Due Date: 13-Oct-2023
• Completion Date: 28-Aug-2023
• Ref Project: EN ISO 1089:2023 - Resistance welding equipment - Electrode taper fits for spot welding equipment - Dimensions (ISO 1089:2023)

• Replaces: SIST EN 21089:1998 - Electrode taper fits for spot welding equipment - Dimensions (ISO 1089:1980)
• Effective Date: 01-Nov-2023
• Revises: oSIST prEN ISO 1089:2021 - Resistance welding equipment - Electrode taper fits for spot welding equipment - Dimensions (ISO/DIS 1089:2021)
• Effective Date: 01-Dec-2022

Overview

SIST EN ISO 1089:2023 specifies the dimensions and tolerances of electrode taper fits used in resistance spot welding equipment. This European and international standard provides comprehensive guidelines for the design, designation, and marking of straight and offset electrode holders, electrode adaptors, and both male and female electrode caps. The standard applies to electrodes and related parts where the specified maximum electrode force is not exceeded, ensuring reliability and safety in resistance welding processes.

This document cancels and replaces previous editions (including ISO Recommendation R 1089-1969 and EN 21089:1991) and introduces updated technical and editorial revisions to reflect current practice in the welding industry.

Key Topics

• Electrode Taper Fits: Covers the dimensional requirements and tolerances for taper fits between straight electrodes, electrode holders, electrode adapters, and caps.
• Standardized Dimensions: Specified taper types and dimensions for both male and female connections, including multiple taper ratios (such as 1:10 and 1:5).
• Tolerance Specifications: Provides information on permissible deviations for key dimensions, supporting manufacturing accuracy.
• Designation & Marking: Establishes a uniform designation system for identifying electrode tapers and marking requirements for components.
• Alternative Taper Types: Includes informative annex on additional taper types and dimensions (including RWMA-type electrodes).
• Reference to Related Vocabulary: Utilizes terms and definitions standardized in ISO 17677-1 for consistency.

Applications

SIST EN ISO 1089:2023 is vital for manufacturers, suppliers, and users of spot welding equipment in various sectors:

• Automotive & Transportation: Ensures interoperability and reliable connections in automotive body panels and components where spot welding is widely used.
• Manufacturing & Fabrication: Supports the production of welding equipment and consumables with consistent, interchangeable components.
• Quality Assurance: Facilitates inspection and quality control by specifying standardized dimensions, making it easier to maintain consistency across production batches.
• Maintenance & Repairs: Assists maintenance teams with the replacement and identification of welding electrodes, adaptors, and holders, reducing downtime and errors.
• Procurement & Documentation: Provides clear terminology and marking guidance, streamlining procurement and technical documentation for spot welding operations.

Organizations adopting this standard benefit from improved safety, equipment longevity, and productivity, due to minimized risk of mismatched parts and enhanced equipment compatability.

Related Standards

• ISO 17677-1: Resistance welding - Vocabulary - Part 1: Spot, projection and seam welding. Essential for standardized terminology.
• ISO 5822: Spot welding equipment - Taper plug gauges and taper ring gauges. Useful for verifying compliance with specified dimensions.
• ISO 20168: Resistance welding - Locking tapers for electrode holders and electrode caps. Covers locking taper requirements not addressed in ISO 1089.

Practical Value

By implementing SIST EN ISO 1089:2023, companies ensure their resistance welding equipment is built or maintained to internationally recognized tolerances and dimensions. This leads to:

• Reduced equipment wear and improved weld quality
• Interchangeability of parts from different manufacturers
• Consistent process parameters and outputs
• Streamlined global supply chains

For organizations involved in spot welding, adherence to this standard is crucial for operational efficiency, safety, and achieving high-quality welded assemblies.

SLOVENSKI STANDARD
01-november-2023
Nadomešča:
SIST EN 21089:1998
Oprema za uporovno varjenje - Nastavki elektrod pri opremi za točkovno varjenje -
Mere (ISO 1089:2023)
Resistance welding equipment - Electrode taper fits for spot welding equipment -
Dimensions (ISO 1089:2023)
Widerstandsschweißeinrichtungen - Elektrodensitze für Punktschweißeinrichtungen -
Maße (ISO 1089:2023)
Matériel de soudage par résistance - Emmanchements coniques d'électrodes pour
machines à souder par points - Dimensions (ISO 1089:2023)
Ta slovenski standard je istoveten z: EN ISO 1089:2023
ICS:
25.160.30 Varilna oprema Welding equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 1089
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2023
EUROPÄISCHE NORM
ICS 25.160.30 Supersedes EN 21089:1991
English Version
Resistance welding equipment - Electrode taper fits for
spot welding equipment - Dimensions (ISO 1089:2023)
Matériel de soudage par résistance - Emmanchements Widerstandsschweißeinrichtungen - Elektrodensitze
coniques d'électrodes pour machines à souder par für Punktschweißeinrichtungen - Maße (ISO
points - Dimensions (ISO 1089:2023) 1089:2023)
This European Standard was approved by CEN on 23 June 2023.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 1089:2023 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 1089:2023) has been prepared by Technical Committee ISO/TC 44 "Welding
and allied processes" in collaboration with Technical Committee CEN/TC 121 “Welding and allied
processes” the secretariat of which is held by DIN.
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 January 2024, and conflicting national standards shall
be withdrawn at the latest by January 2024.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 21089:1991.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 1089:2023 has been approved by CEN as EN ISO 1089:2023 without any modification.

INTERNATIONAL ISO
STANDARD 1089
Second edition
2023-07
Resistance welding equipment —
Electrode taper fits for spot welding
equipment — Dimensions
Matériel de soudage par résistance — Emmanchements coniques
d'électrodes pour machines à souder par points — Dimensions
Reference number
ISO 1089:2023(E)
ISO 1089:2023(E)
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
ISO 1089:2023(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Dimensions .1
5 Designation . 6
6 Marking . . 6
Annex A (informative) Alternative types and dimensions of female and male electrode
taper fits . 7
Bibliography . 8
iii
ISO 1089:2023(E)
Foreword
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