ISO 2328:2011

Fork-lift trucks - Hook-on type fork arms and fork arm carriages - Mounting dimensions

ISO 2328:2011 specifies the dimensions of, and additional requirements for, fork carriers and hook-on type fork arms, to permit the interchangeability of these fork arms and/or other attachments, relative to the truck-rated capacity and fork arm type, on fork-lift trucks up to and including a rated capacity of 10 999 kg.

Chariots élévateurs à fourche — Bras de fourche à tenons et tabliers porte-fourches — Dimensions de montage

L'ISO 2328:2011 spécifie les dimensions et les exigences complémentaires des tabliers porte-fourches et des bras de fourche à tenons pour chariots élévateurs à fourche afin de permettre l'interchangeabilité des bras de fourche et/ou autres équipements, en fonction de la capacité nominale du chariot et du type du bras de fourche, pour des chariots ayant une capacité nominale jusqu'à 10 999 kg inclus.

Vozila za talni transport - Viličarji z nosilcem vilic - Priključne mere

Ta mednarodni standard določa mere in dodatne zahteve za viličarje z nosilcem vilic, da se omogoči zamenljivost teh vilic in/ali drugih priključkov, in sicer glede na nazivno nosilnost viličarja ter vrsto vilice, na viličarjih z nazivno nosilnostjo do vključno 10.999 kg.

General Information

• Status: Published
• Publication Date: 15-Sep-2011
• ICS: 53.060 - Industrial trucks
• Technical Committee: ISO/TC 110/SC 2 - Safety of powered industrial trucks
• Drafting Committee: ISO/TC 110/SC 2 - Safety of powered industrial trucks
• Current Stage: 9092 - International Standard to be revised
• Start Date: 21-May-2024
• Completion Date: 13-Dec-2025
• Ref Project: SIST ISO 2328:2012 - Fork-lift trucks - Hook-on type fork arms and fork arm carriages - Mounting dimensions

Relations

• Revises: ISO 2328:2007 - Fork-lift trucks - Hook-on type fork arms and fork arm carriages - Mounting dimensions
• Effective Date: 14-Aug-2008

Overview

ISO 2328:2011 is an international standard published by the International Organization for Standardization (ISO) that establishes mounting dimensions and additional requirements for hook-on type fork arms and fork arm carriages used on fork-lift trucks. This standard focuses on ensuring interchangeability of hook-on fork arms and other attachments relative to truck-rated capacity and fork arm type for fork-lift trucks with rated capacities up to 10,999 kg.

By specifying precise dimensional criteria and safety features, ISO 2328:2011 supports manufacturers and users in enhancing compatibility, safety, and operational efficiency when selecting or replacing fork arms and attachments.

Key Topics

• Mounting Dimensions
  The standard defines detailed dimensional specifications for fork carriers and hook-on type fork arms. It covers two main types of fork arms differentiated by the position of the lower hook: Type A (short drop) and Type B (long drop). Compliance with these dimensions ensures that fork arms and attachments can be safely mounted and interchanged on compatible forklifts.

• Interchangeability
  ISO 2328:2011 facilitates the universal use of fork arms by setting standards that permit easy interchange between different manufacturers while matching truck-rated capacities, improving operational flexibility.

• Safety Requirements
  The standard mandates the provision of stops on the fork carrier to prevent lateral disengagement of fork arms, enhancing operator safety. It also addresses optional features such as fork arm removal/mounting slots and specifies warning requirements to avoid unintentional fork arm disengagement.

• Rated Capacity Range
  This standard applies to fork-lift trucks with rated capacities up to and including 10,999 kg, making it relevant for a wide range of industrial trucks used in logistics, warehousing, and manufacturing.

• Referenced Standards
  ISO 2328:2011 refers to related standards for terminology (ISO 2331) and safety requirements for self-propelled industrial trucks (ISO 3691-1), ensuring harmonized implementation alongside broader forklift safety and vocabulary standards.

Applications

• Fork-lift Truck Manufacturing
  Manufacturers use ISO 2328:2011 to design fork arms and carriers that meet international dimensions and safety requirements, enabling compliance and smooth integration with existing equipment.

• Attachment Interchange and Replacement
  Warehouse managers and maintenance teams benefit from this standard when replacing fork arms or fitting compatible attachments, ensuring safe, secure, and quick mounting without custom modifications.

• Quality Assurance and Safety
  Adhering to ISO 2328:2011 helps reduce risks associated with improper fork arm mounting, preventing accidents caused by inadvertent detachment during operation. It also ensures that attachments align correctly with forklift capabilities.

• Global Supply Chain Compatibility
  The standard supports worldwide forklift and attachment interoperability, aiding global logistics and distribution operations by enabling universal fitting dimensions.

Related Standards

• ISO 2331: Fork lift trucks - Hook-on type fork arms - Vocabulary
  This document complements ISO 2328:2011 by providing consistent terminology critical for clear communication and compliance regarding fork arms.

• ISO 3691-1: Industrial trucks - Safety Requirements and Verification - Part 1
  It establishes general safety requirements for self-propelled industrial trucks, supporting the safe use of fork-lift trucks and attachments standardized under ISO 2328.

• ISO/IEC Directives, Part 2
  Governs drafting and preparation of International Standards like ISO 2328:2011 to ensure clarity, consistency, and global acceptance.

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Keywords: ISO 2328:2011, fork-lift trucks, hook-on type fork arms, fork arm carriages, mounting dimensions, fork arm interchangeability, fork-lift truck safety, forklift attachments, rated capacity, industrial trucks standard, forklift fork arm standards, ISO industrial trucks.

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2012
1DGRPHãþD
SIST ISO 2328:1999
9R]LOD]DWDOQLWUDQVSRUW9LOLþDUML]QRVLOFHPYLOLF3ULNOMXþQHPHUH
Fork-lift trucks - Hook-on type fork arms and fork arm carriages - Mounting dimensions
Chariots élévateurs à fourche - Bras de fourche à tenons et tabliers porte-fourches -
Dimensions de montage
Ta slovenski standard je istoveten z: ISO 2328:2011
ICS:
53.060 Industrijski tovornjaki Industrial trucks
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

INTERNATIONAL ISO
STANDARD 2328
Fourth edition
2011-09-15
Fork-lift trucks — Hook-on type
fork arms and fork arm carriages —
Mounting dimensions
Chariots élévateurs à fourche — Bras de fourche à tenons et tabliers
porte-fourches — Dimensions de montage
Reference number
©
ISO 2011
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO’s
member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland
ii © ISO 2011 – All rights reserved

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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 2328 was prepared by Technical Committee ISO/TC 110, Industrial trucks, Subcommittee SC 2, Safety of
powered industrial trucks.
This fourth edition cancels and replaces the third edition (ISO 2328:2007), which has been technically revised.
INTERNATIONAL STANDARD ISO 2328:2011(E)
Fork-lift trucks — Hook-on type fork arms and fork arm
carriages — Mounting dimensions
1 Scope
This International Standard specifies the dimensions of, and additional requirements for, fork carriers and
hook-on type fork arms, to permit the interchangeability of these fork arms and/or other attachments, relative to
the truck-rated capacity and fork arm type, on fork-lift trucks up to and including a rated capacity of 10 999 kg.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced document
(including any amendments) applies.
ISO 2331, Fork lift trucks — Hook-on type fork arms — Vocabulary
ISO 3691-1, Industrial trucks — Safety requirements and verification — Part 1: Self-propelled industrial trucks,
other than driverless trucks, variable-reach trucks and burden-carrier trucks
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 2331 and ISO 3691-1 apply.
4 Requirements
4.1 Dimensions
The mounting dimensions of the fork arms and fork carrier for type A (short drop) and type B (long drop) fork
arms (the position of the lower hook determining the type of fork arm)
...

INTERNATIONAL ISO
STANDARD 2328
Fourth edition
2011-09-15
Fork-lift trucks — Hook-on type
fork arms and fork arm carriages —
Mounting dimensions
Chariots élévateurs à fourche — Bras de fourche à tenons et tabliers
porte-fourches — Dimensions de montage
Reference number
©
ISO 2011
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO’s
member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland
ii © ISO 2011 – All rights reserved

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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 2328 was prepared by Technical Committee ISO/TC 110, Industrial trucks, Subcommittee SC 2, Safety of
powered industrial trucks.
This fourth edition cancels and replaces the third edition (ISO 2328:2007), which has been technically revised.
INTERNATIONAL STANDARD ISO 2328:2011(E)
Fork-lift trucks — Hook-on type fork arms and fork arm
carriages — Mounting dimensions
1 Scope
This International Standard specifies the dimensions of, and additional requirements for, fork carriers and
hook-on type fork arms, to permit the interchangeability of these fork arms and/or other attachments, relative to
the truck-rated capacity and fork arm type, on fork-lift trucks up to and including a rated capacity of 10 999 kg.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced document
(including any amendments) applies.
ISO 2331, Fork lift trucks — Hook-on type fork arms — Vocabulary
ISO 3691-1, Industrial trucks — Safety requirements and verification — Part 1: Self-propelled industrial trucks,
other than driverless trucks, variable-reach trucks and burden-carrier trucks
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 2331 and ISO 3691-1 apply.
4 Requirements
4.1 Dimensions
The mounting dimensions of the fork arms and fork carrier for type A (short drop) and type B (long drop) fork
arms (the position of the lower hook determining the type of fork arm) shall be in accordance with Figures 1,
2 and 3 and Tables 1 and 2. The fork arm removal/mounting slot on the lower fork carrier is optional and shall
be in accordance with 4.3. Fork arm location slots to the dimensions specified in Table 2 shall be provided at a
suitable spacing on the fork carrier. In order to locate attachments, one slot shall be situated on the top edge of
the fork carrier centreline. However, when an offset lower slot is provided to avoid unin
...

NORME ISO
INTERNATIONALE 2328
Quatrième édition
2011-09-15
Chariots élévateurs à fourche — Bras
de fourche à tenons et tabliers porte-
fourches — Dimensions de montage
Fork-lift trucks — Hook-on type fork arms and fork arm carriages —
Mounting dimensions
Numéro de référence
©
ISO 2011
DOCUMENT PROTÉGÉ PAR COPYRIGHT
Droits de reproduction réservés. Sauf prescription différente, 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 et les microfilms, sans l’accord écrit
de l’ISO à l’adresse ci-après ou du comité membre de l’ISO dans le pays du demandeur.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Publié en Suisse
ii © ISO 2011 – Tous droits réservés

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 (CEI) en ce qui concerne la normalisation électrotechnique.
Les Normes internationales sont rédigées conformément aux règles données dans les Directives ISO/CEI, Partie 2.
La tâche principale des comités techniques est d’élaborer les Normes internationales. Les projets de Normes
internationales adoptés par les comités techniques sont soumis aux comités membres pour vote. Leur publication
comme Normes internationales requiert l’approbation de 75 % au moins des comités membres votants.
L’attention est appelée sur le fait que certains des éléments du présent document peuvent faire l’objet de droits
de propriété intellectuelle ou de droits analogues. L’ISO ne saurait être tenue pour responsable de ne pas avoir
identifié de tels droits de propriété et averti de leur existence.
L’ISO 2328 a été élaborée par le comité technique ISO/TC 110, Chariots de manutention, sous-comité SC 2,
Sécurité des chariots de manutention automoteurs.
Cette quatrième édition annule et remplace la troisième édition (ISO 2328:2007), qui a fait l’objet d’une
révision technique.
NORME INTERNATIONALE ISO 2328:2011(F)
Chariots élévateurs à fourche — Bras de fourche à tenons et
tabliers porte-fourches — Dimensions de montage
1 Domaine d’application
La présente Norme internationale spécifie les dimensions et les exigences complémentaires des tabliers porte-
fourches et des bras de fourche à tenons pour chariots élévateurs à fourche afin de permettre l’interchangeabilité
des bras de fourche et/ou autres équipements, en fonction de la capacité nominale du chariot et du type du
bras de fourche, pour des chariots ayant une capacité nominale jusqu’à 10 999 kg inclus.
2 Références normatives
Les documents de référence suivants sont indispensables pour l’application du présent document. Pour les
références datées, seule l’édition citée s’applique. Pour les références non datées, la dernière édition du
document de référence s’applique (y compris les éventuels amendements).
ISO 2331, Chariots élévateurs à fourche — Bras de fourche à tenons — Vocabulaire
ISO 3691-1, Chariots de manutention — Exigences de sécurité et vérification — Partie 1: Chariots de
manutention automoteurs, autres que les chariots sans conducteur, les chariots à portée variable et les chariots
transporteurs de charges
3 Termes et définitions
Pour les besoins du présent document, les termes et définitions donnés dans l’ISO 2331 et dans l’ISO 3691-1
s’appliquent.
4 Exigences
4.1 Dimensions
Les dimensions de montage des bras de fourche et des tabliers porte-fourches pour bras de fourche de type A
(chute brève) et de type B (chute longue) — la position du tenon inférieur déterminant le type de fourche —
doivent être conformes aux dimensions données aux Figures 1, 2 et 3 et dans les Tableaux 1 et 2. Le créneau de
dégagement/montage du bras de fourche sur le tablier inférieur est optionnel et est positionné conformément
à 4.3. Des créneaux de prépositionnement des bras de fourche doivent être prévus aux dimensions spécifiées
dans le Tableau 2, à intervalles appropriés sur le tablier porte-fourches. Pour positionner les équipements, un
créneau doit être situé sur le bord supérieur de l’axe du plateau porte-fourches. Cependant, lorsqu’un créneau
inférieur de déport est prévu pour éviter un dégagement involontaire, le créneau inférieur doit être décalé de la
dimension w (voir Figure 1) par rapport à l’axe du tablier porte-fourche
...