SIST EN ISO 5183-1:2026

• Abstract:

  This document specifies the dimensions and tolerances of resistance spot welding electrode adaptors where the fixing element for the cap (see ISO 5821 [2]) is a male taper of 1:10 and for which the electrode taper fits in conformance with ISO 1089 [3] .

• Status: Not Published
• Public Enquiry End Date: 01-May-2026
• ICS: 25.160.30 - Welding equipment
• Technical Committee: VAR - Welding
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Sep-2026
• Due Date: 06-Nov-2026
• Ref Project: EN ISO 5183-1:2026 - Resistance welding equipment - Electrode adaptors, male taper 1:10 - Part 1: Conical fixing, taper 1:10 (ISO 5183-1:2026)

• Replaces: SIST EN ISO 5183-1:2001 - Resistance welding equipment - Electrode adaptors, male taper 1:10 - Part 1: Conical fixing, taper 1:10 (ISO 5183-1:1998)
• Effective Date: 01-Nov-2026
• Referred By: SIST EN ISO 18278-2:2005 - Resistance welding - Weldability - Part 2: Alternative procedures for the assessment of sheet steels for spot welding (ISO 18278-2:2004)
• Effective Date: 25-Aug-2026
• Referred By: SIST EN ISO 12855:2022 - Electronic fee collection - Information exchange between service provision and toll charging (ISO 12855:2022)
• Effective Date: 28-Jan-2026

SIST EN ISO 5183-1:2026 is a CEN standard for resistance welding equipment that specifies the dimensions and tolerances of resistance spot welding electrode adaptors with a male taper 1:10. It applies to adaptors for electrode caps referenced in ISO 5821 and to electrode tapers that fit ISO 1089, so designers, buyers and inspectors can specify compatible parts.

What does SIST EN ISO 5183-1:2026 specify?

SIST EN ISO 5183-1:2026 specifies the geometry, designation, material and marking of electrode adaptors for resistance spot welding. The document is organized into Clauses 1 to 7 and an informative Annex A.

Annex	What it covers
A	Flat dimensions for adaptors designed with wrench flats to make release from the holder easier

The scope is limited to adaptors where the fixing element for the cap has a male taper of 1:10 and where the electrode taper fits in conformance with ISO 1089. In practice, this means the standard is about interchangeability and fit, not about the complete welding process.

What are the key requirements of SIST EN ISO 5183-1:2026?

SIST EN ISO 5183-1:2026 is mainly a dimensional standard. Its core requirements tell you what sizes to make, how to name the part, what material to use, and how to mark it.

Dimensions and types

Clause 4 states that the dimensions shall follow Figures 1 to 3 and Tables 1 and 2. Tables 1 and 2 give the permitted sizes for the different adaptor types, and the values in parentheses are non-preferred sizes.

In practice, this is the part used for drawings, incoming inspection and gauging. If a part does not match the figure and table dimensions, it is not in conformance.

Type selection and fit

The figures and notes distinguish three adaptor types: A, B and C. Types A and B are designed to be held by electrode holders conforming to ISO 8430-1 and ISO 8430-2, while type C is for longer taper fits conforming to ISO 1089.

This matters when matching the adaptor to the holder or taper system already used in a welding setup. Choosing the wrong type can prevent correct assembly or secure holding.

Designation for ordering and documentation

Clause 5 requires the designation to include the description block, the reference to this document, the adaptor type, the diameter d, the length l, and the material according to ISO 5182. The clause also gives an example designation format.

In practice, this is the wording used in purchase specifications, catalogues and technical records. It helps avoid ambiguity when several adaptor sizes and materials are available.

Material selection

Clause 6 requires the adaptor material to comply with ISO 5182, with preference for group A, type 2.

For users, this means the adaptor is not only a shaped part - its material must also meet the welding equipment material standard. That affects wear, conductivity and compatibility with the rest of the electrode assembly.

Marking on the part

Clause 7 requires the adaptor to be marked with the designation from Clause 5, but without the description block and the document reference.

In practice, the part marking supports traceability on the shop floor while keeping the marking shorter than the full ordering designation.

Optional wrench flats

Annex A gives flat dimensions for adaptors designed with flats for a wrench.

This is useful when the adaptor needs to be removed more easily from a holder during maintenance or changeover.

What terms does SIST EN ISO 5183-1:2026 use?

• Electrode adaptor - the part covered by the standard, used in resistance spot welding to carry and position the electrode cap.
• Male taper 1:10 - the conical fixing geometry used for the cap-side connection.
• Electrode cap - the cap referenced to ISO 5821 that the adaptor fixes in place.
• Gauge plane - the reference plane used for the cone diameter shown in the figures and tables.
• Type A, type B, type C - the three adaptor variants shown in the document, with different holder or taper interfaces.
• Non-preferred sizes - sizes shown in parentheses in the tables that are allowed but not preferred.

Who uses SIST EN ISO 5183-1:2026?

SIST EN ISO 5183-1:2026 is used by manufacturers of resistance welding equipment, electrode and holder suppliers, welding engineers, quality staff and buyers. They use it to design compatible adaptors, specify materials, check dimensions, mark parts and write procurement requirements for resistance spot welding assemblies.

What changed in SIST EN ISO 5183-1:2026 from the previous edition?

SIST EN ISO 5183-1:2026 replaces ISO 5183-1:1998. The document states that this third edition is a minor revision, with updated normative references and editorial revisions. The introduction also says the document has been extended to include adaptors with longer taper fits, type C, conforming to ISO 1089:2023, Type B.

Which standards are used with SIST EN ISO 5183-1:2026?

• ISO 5182 - provides the material standard for electrodes and ancillary equipment, which Clause 6 uses for adaptor material selection.
• ISO 5821 - identifies the female electrode caps that the adaptor fixing element is intended to work with.
• ISO 1089 - provides the dimensions for electrode taper fits and is used for the taper fit of type C.
• ISO 8430-1 - gives the electrode holder taper fixing used with adaptor types A and B.
• ISO 8430-2 - gives the other holder system named in the note for adaptor types A and B.

What does the SIST EN ISO 5183-1:2026 document contain?

The document contains three main figure sets for adaptor types A, B and C, plus two dimension tables for the standard sizes. It also includes an informative annex with flat dimensions for wrench flats, and an example of how to write the designation for ordering and marking.

For engineers and inspectors, the figures and tables are the practical core of the document because they define the sizes to measure. For purchasing and documentation, Clause 5 gives the exact designation structure, and Clause 7 gives the shorter marking format used on the part itself.

SLOVENSKI STANDARD
oSIST prEN ISO 5183-1:2026
01-april-2026
Oprema za uporovno varjenje - Držala elektrod z zunanjim konusom 1:10 - 1. del:
Konična pritrditev, konus 1:10 (ISO/FDIS 5183-1:2026)
Resistance welding equipment - Electrode adaptors, male taper 1:10 - Part 1: Conical
fixing, taper 1:10 (ISO/FDIS 5183-1:2026)
Widerstandspunktschweißeinrichtungen - Elektrodenschäfte mit Außenkegel 1:10 - Teil
1: Kegelige Befestigung, Kegel 1:10 (ISO/FDIS 5183-1:2026)
Matériel de soudage par résistance - Allonges d'électrode à embout amovible, cône
mâle 1:10 - Partie 1: Emmanchement conique 1:10 (ISO/FDIS 5183-1:2026)
Ta slovenski standard je istoveten z: prEN ISO 5183-1
ICS:
25.160.30 Varilna oprema Welding equipment
oSIST prEN ISO 5183-1:2026 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN ISO 5183-1:2026
oSIST prEN ISO 5183-1:2026
FINAL DRAFT
International
Standard
ISO/FDIS 5183-1
ISO/TC 44/SC 6
Resistance welding equipment —
Secretariat: DIN
Electrode adaptors, male taper
Voting begins on:
1:10 —
2026-03-10
Part 1:
Voting terminates on:
2026-06-02
Conical fixing, taper 1:10
Équipement de soudage par résistance - Allonges d'électrode à
embout amovible, cône mâle 1:10 —
Partie 1: Emmanchement conique 1:10
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/CEN PARALLEL PROCESSING LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
ISO/FDIS 5183-1:2026(en) © ISO 2026

oSIST prEN ISO 5183-1:2026
FINAL DRAFT
ISO/FDIS 5183-1:2026(en)
International
Standard
ISO/FDIS 5183-1
ISO/TC 44/SC 6
Resistance welding equipment —
Secretariat: DIN
Electrode adaptors, male taper
Voting begins on:
1:10 —
Part 1:
Voting terminates on:
Conical fixing, taper 1:10
Équipement de soudage par résistance - Allonges d'électrode à
embout amovible, cône mâle 1:10 —
Partie 1: Emmanchement conique 1:10
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
© ISO 2026
IN ADDITION TO THEIR EVALUATION AS
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BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/CEN PARALLEL PROCESSING
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
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MADE IN NATIONAL REGULATIONS.
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Published in Switzerland Reference number
ISO/FDIS 5183-1:2026(en) © ISO 2026

ii
oSIST prEN ISO 5183-1:2026
ISO/FDIS 5183-1:2026(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Dimensions . 1
5 Designation . 1
6 Materials . 2
7 Marking . . 2
Annex A (informative) Flat dimensions . 5
Bibliography . 6

iii
oSIST prEN ISO 5183-1:2026
ISO/FDIS 5183-1:2026(en)
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
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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 document should be noted. This document was drafted in accordance with the editorial rules of the
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ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent rights
in respect thereof. As of the date of publicati
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