General Information

Abstract

This document specifies dimensions of tapered receivers for modular taper interfaces with ball track system with four locking elements for automatic and manual tool exchange to be applied on machine tools (e.g. lathe machines, drilling machines, milling machines and turn/milling machine centres). A range of receiver sizes is specified. The torque is transmitted by friction and locking elements.

Status
Published
Publication Date
02-Aug-2026
Current Stage
6060 - International Standard published
Start Date
03-Aug-2026
Due Date
28-Dec-2025
Completion Date
03-Aug-2026

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Standard

ISO 26622-4:2026 - Modular taper interface with ball track system — Part 4: Dimensions of receivers for interface utilizing four locking elements

Release Date:03-Aug-2026
English language (5 pages)
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Standard

ISO 26622-4:2026 - Interfaces à cône modulaire avec système de serrage à billes — Partie 4: Dimensions des nez de broche pour une interface utilisant quatre éléments de verrouillage

Release Date:03-Aug-2026
French language (6 pages)
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Overview

ISO 26622-4 is part of the ISO 26622 series, focusing on the modular taper interface with ball track system, specifically detailing the dimensions of receivers that utilize four locking elements. Developed by the International Organization for Standardization (ISO), this standard provides critical dimension specifications for tapered receivers designed for both automatic and manual tool exchange on machine tools. The application environments include lathe machines, drilling machines, milling machines, and turn/milling machine centres, supporting consistent and reliable tool interface across manufacturing operations. The torque is transmitted through friction and robust locking elements, ensuring stability during high-precision machining processes.

Key Topics

  • Receiver Design and Dimensions

    • Specifies detailed dimensional requirements for tapered receivers accommodating four locking elements.
    • Covers a range of nominal receiver sizes (e.g., TS4X63, TS4X100, TS4X125), supporting diverse machine tool configurations.
    • All tolerances for linear and angular dimensions are aligned with ISO 8015 and ISO 22081 standards for geometrical product specifications.
  • Clamping Systems

    • Outlines necessary clamping forces to assure secure interfacing between the receiver face and the shank flange.
    • Ensures the taper of the shank is properly seated by elastic deformation, increasing rigidity and operational reliability.
  • Material and Heat Treatment

    • Receivers shall be manufactured from tempering or case hardening steel.
    • Minimum requirements: core strength of 800 N/mm² and surface hardness of 60 HRC post-processing.
  • Designation

    • Provides a specific naming convention for taper receivers: Modular Taper Receiver ISO 26622-4 – TS4X[nominal size].

Applications

Implementing ISO 26622-4 brings clear benefits and supports a wide set of real-world applications:

  • Machine Tool Interfaces

    • Enables accurate and repeatable tool-to-spindle connections on automatic and manually operated CNC machines, improving flexibility and productivity.
  • Interchangeability

    • By standardizing receiver dimensions, manufacturers and end-users benefit from component interchangeability, reducing downtime and facilitating easier tool changes.
  • Precision Machining

    • High clamping forces and defined contact surfaces ensure interface stiffness, supporting precision and reliability in demanding milling, turning, and drilling operations.
  • Maintenance and Upgrades

    • Simplifies the replacement or upgrade of receivers within existing modular tool systems, supporting ongoing process optimization in manufacturing environments.

Related Standards

  • ISO 8015 – Geometrical product specifications (GPS) - Fundamentals, concepts, principles, and rules
  • ISO 22081 – Geometrical product specifications (GPS) - Geometrical tolerancing - General geometrical specifications and size specifications
  • ISO 26622-3 – Modular taper interface with ball track system - Part 3: Dimensions of shanks, four locking elements
  • ISO 1101 – Geometrical tolerancing - Tolerances of form, orientation, location, and run-out
  • ISO 3040 – Geometrical tolerancing - Dimensioning and tolerancing - Cones

ISO 26622-4 ensures compatibility and consistency across modular taper interfaces, helping manufacturers, toolmakers, and integrators implement reliable, high-performing tooling systems for modern machine tools. By adhering to this standard, organizations can achieve greater efficiency, maintain high precision, and simplify their tool management across international manufacturing environments.

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Standard

ISO 26622-4:2026 - Modular taper interface with ball track system — Part 4: Dimensions of receivers for interface utilizing four locking elements

Release Date:03-Aug-2026
English language (5 pages)
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Standard

ISO 26622-4:2026 - Interfaces à cône modulaire avec système de serrage à billes — Partie 4: Dimensions des nez de broche pour une interface utilisant quatre éléments de verrouillage

Release Date:03-Aug-2026
French language (6 pages)
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Preview
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DVS-ZERT GmbH

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DAKKS Germany Verified

CARES (UK Certification Authority for Reinforcing Steels)

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UKAS United Kingdom Verified

EWF/IIW (European/International Welding Federation)

International welding personnel certification.

BELAC Belgium Verified

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Frequently Asked Questions

ISO 26622-4:2026 is a standard published by the International Organization for Standardization (ISO). Its full title is "Modular taper interface with ball track system — Part 4: Dimensions of receivers for interface utilizing four locking elements". This standard covers: This document specifies dimensions of tapered receivers for modular taper interfaces with ball track system with four locking elements for automatic and manual tool exchange to be applied on machine tools (e.g. lathe machines, drilling machines, milling machines and turn/milling machine centres). A range of receiver sizes is specified. The torque is transmitted by friction and locking elements.

This document specifies dimensions of tapered receivers for modular taper interfaces with ball track system with four locking elements for automatic and manual tool exchange to be applied on machine tools (e.g. lathe machines, drilling machines, milling machines and turn/milling machine centres). A range of receiver sizes is specified. The torque is transmitted by friction and locking elements.

ISO 26622-4:2026 is classified under the following ICS (International Classification for Standards) categories: 25.060.20 - Dividing and tool-workpiece holding devices. The ICS classification helps identify the subject area and facilitates finding related standards.

ISO 26622-4:2026 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


International
Standard
ISO 26622-4
First edition
Modular taper interface with ball
2026-08
track system —
Part 4:
Dimensions of receivers for
interface utilizing four locking
elements
Interfaces à cône modulaire avec système de serrage à billes —
Partie 4: Dimensions des nez de broche pour une interface
utilisant quatre éléments de verrouillage
Reference number
© ISO 2026
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: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Dimensions . 1
4.1 General .1
4.2 Tapered receiver .2
5 Design . 3
5.1 Clamping forces .3
5.2 Material and heat treatment .3
6 Designation . 3
Annex A (informative) Recommendation for use and application . 4
Bibliography . 5

iii
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 https://www.iso.org/obp).
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 publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, 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 www.iso.org/iso/foreword.html.
This document was prepared by Technical
...


Norme
internationale
ISO 26622-4
Première édition
Interfaces à cône modulaire avec
2026-08
système de serrage à billes —
Partie 4:
Dimensions des nez de broche
pour une interface utilisant quatre
éléments de verrouillage
Modular taper interface with ball track system —
Part 4: Dimensions of receivers for interface utilizing four locking
elements
Numéro de référence
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2026
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en œuvre, aucune partie de cette
publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique,
y compris la photocopie, ou la diffusion sur l’internet ou sur un intranet, sans autorisation écrite préalable. Une autorisation peut
être demandée à l’ISO à l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
ISO copyright office
Case postale 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Genève
Tél.: +41 22 749 01 11
E-mail: copyright@iso.org
Web: www.iso.org
Publié en Suisse
ii
Sommaire Page
Avant-propos .iv
1 Domaine d’application . 1
2 Références normatives . 1
3 Termes et définitions . 1
4 Dimensions . 1
4.1 Généralités .1
4.2 Nez de broche conique .2
5 Conception . 4
5.1 Efforts de serrage . .4
5.2 Matériaux et traitement thermique .4
6 Désignation . 4
Annexe A (informative) Recommandations pour l’utilisation et l’application . 5
Bibliographie . 6

iii
Avant-propos
L'ISO (Organisation internationale de normalisation) est une fédération mondiale d'organismes nationaux
de normalisation (comités membres de l'ISO). L'élaboration des Normes internationales est en général
confiée aux comités techniques de l'ISO. Chaque comité membre intéressé par une étude a le droit de faire
partie du comité technique créé à cet effet. Les organisations internationales, gouvernementales et non
gouvernementales, en liaison avec l'ISO participent également aux travaux. L'ISO collabore étroitement avec
la Commission électrotechnique internationale (IEC) en ce qui concerne la normalisation électrotechnique.
Les procédures utilisées pour élaborer le présent document et celles destinées à sa mise à jour sont
décrites dans les Directives ISO/IEC, Partie 1. Il convient, en particulier, de prendre note des différents
critères d'approbation requis pour les différents types de documents ISO. Le présent document a
été rédigé conformément aux règles de rédaction données dans les Directives ISO/IEC, Partie 2 (voir
www.iso.org/directives).
L’ISO attire l’attention sur le fait que la mise en application du présent document peut entraîner l’utilisation
d’un ou de plusieurs brevets. L’ISO ne prend pas position quant à la preuve, à la validité et à l’applicabilité de
tout droit de propriété revendiqué à cet égard. À la date de publication du présent document, l’ISO n'avait pas
reçu notification qu’un ou plusieurs brevets pouvaient être nécessaires à sa mise en application. Toutefois,
il y a lieu d’avertir les responsables de la mise en application du présent document que des informations
plus récentes sont susceptibles de figurer dans la base de données de brevets, disponible à l'adresse
www.iso.org/brevets. L’ISO ne saurait être tenue pour responsable de ne pas avoir identifié tout ou partie de
tels droits de propriété.
Les appellations commerciales éventuellement mentionnées dans le présent document sont données pour
information, par souci de commodité, à l’intention des utilisateurs et ne sauraient constituer un engagement.
Pour une explication de la nature volontaire des normes, la signification des termes et expressions
spécifiques de l'ISO liés à l'évaluation de la conformité, ou pour toute information au sujet de l'adhésion de
l'ISO aux principes de l’Organisation mondiale du commerce (OMC) concernant les obstacles techniques au
commerce (OTC), voir www.iso.org/avant-propos.
Le présent document a été élaboré par le comité technique ISO/TC 29, Petit outillage, sous-comité SC 9, Outils
à arêtes de coupe définies, éléments coupants, porte-outils, éléments relatifs aux attachements et interfaces.
Une liste de toutes les parties de la série ISO 26622 se trouve sur le site web de l’ISO.
Il convient que l’utilisateur adresse tout retour d’information ou toute question concernant le présent
document à l’organisme na
...