oSIST prEN ISO 19085-4:2026

Woodworking machines - Safety - Part 4: Vertical panel circular sawing machines (ISO/DIS 19085-4:2026)

This document specifies the safety requirements and measures for manually loaded and unloaded vertical panel circular sawing machines (defined in 3.1) capable of continuous production use, with hand feed or integrated feed, hereinafter referred to also as “machines”.
This document deals with all significant hazards, hazardous situations and events, as listed in Annex A, relevant to the machines, when operated, adjusted and maintained as intended and under the conditions foreseen by the manufacturer, including reasonably foreseeable misuse. Transport, assembly, dismantling, disabling and scrapping phases are also taken into account.
This document is also applicable to machines fitted with one or more of the following devices/additional working units, whose hazards have been dealt with:
—     an integrated feed device;
—     a device for scoring;
—     an angle cutting device;
—     a middle support device;
—     programmable end stops for parallel vertical cuts;
—     a device for grooving with a milling tool with a cutting width not exceeding 27 mm;
—     a panel pusher;
—     a panel lowering device;
—     stop devices for workpiece during horizontal cuts.
The machines are designed for cutting panels consisting of:
a)       solid wood;
b)       material with similar physical characteristics to wood (see ISO 19085-1:2021, 3.2);
c)        composite materials with core consisting, for example, of polyurethane or mineral material laminated with light alloy;
d)       polymer-matrix composite materials and reinforced thermoplastic/thermoset/elastomeric materials;
e)       gypsum boards, gypsum bounded fibreboards;
f)         honeycomb aluminium boards;
g)       matrix engineered mineral boards, silicate boards;
h)       aluminium light alloy plates;
i)         composite boards made from the materials listed above.
This document does not apply to machines
—     with pressure beam and saw unit mounted behind the workpiece support,
—     where the guide rails on which the saw unit moves vertically are fixed on the machine frame and the horizontal cut can only be made by manually feeding the panel,
—     designed to cut in vertical direction only,
—     automatically performing two or more cutting cycles in sequence,
—     intended for use in potentially explosive atmosphere, and
—     manufactured prior to the publication of this document.

Holzbearbeitungsmaschinen - Sicherheit - Teil 4: Vertikalplattenkreissägemaschinen (ISO/DIS 19085-4:2026)

Machines à bois - Sécurité - Partie 4: Scies circulaires à panneaux verticales (ISO/DIS 19085-4:2026)

Le présent document spécifie les exigences et les mesures de sécurité pour les scies circulaires à panneaux verticales à chargement et déchargement manuels (définies en 3.1) capables d’une utilisation en production continue, avec avance manuelle ou avance intégrée, ci-après désignées également «machines».
Le présent document traite de tous les phénomènes dangereux, situations et événements dangereux significatifs tels qu'énumérés à l'Annexe A, applicables aux machines, lorsqu'elles sont utilisées, réglées et entretenues comme prévu et dans les conditions prévues par le fabricant, incluant une mauvaise utilisation raisonnablement prévisible. Les phases de transport, d'assemblage, de démontage, de mise hors service et de mise au rebut sont également prises en compte.
Le présent document est également applicable aux machines équipées d'un ou plusieurs des dispositifs/unités de travail supplémentaires suivants, dont les phénomènes dangereux ont été traités:
—     un dispositif d’avance intégré;
—     un dispositif pour l'incision;
—     un dispositif de coupe en angle;
—     un dispositif de support intermédiaire;
—     des butées programmables pour les coupes verticales parallèles;
—     un dispositif pour réaliser des rainures avec un outil de fraisage ayant une largeur de coupe ne dépassant pas 27 mm;
—     un pousseur de panneaux;
—     un dispositif d'abaissement du panneau;
—     des dispositifs d'arrêt de la pièce pendant les coupes horizontales.
Les machines sont conçues pour découper des panneaux constitués de:
a)       bois massif;
b)       matériau présentant des caractéristiques physiques similaires à celles du bois (voir l'ISO 19085-1:2021, 3.2);
c)        matériaux en composite dont la base est constituée, par exemple, de polyuréthane ou d'un matériau minéral stratifié en alliage léger;
d)       matériaux en composite à matrice polymère et matériaux renforcés thermoplastiques/ thermodurcis/élastomères;
e)       panneaux en plâtre, panneaux en fibres agglomérées au plâtre;
f)         panneaux d'aluminium en nid d'abeille;
g)       panneaux minéraux matriciels, panneaux de silicate;
h)       plaques en alliage léger d'aluminium;
i)         panneaux composites fabriqués à partir des matériaux énumérés ci-dessus.
Le présent document ne s’applique pas aux machines
—     à poutre de pressage et unité de sciage montées derrière le support de pièce;
—     dont les rails-guides sur lesquels l'unité de sciage se déplace verticalement sont fixés sur le bâti de la machine et dont la coupe horizontale ne peut être réalisée que par avance manuelle du panneau;
—     conçues pour une coupe en direction verticale uniquement;
—     réalisant automatiquement deux ou un nombre supérieur de cycles de coupe en séquence;
—     prévues pour une utilisation en atmosphère explosible;
—     fabriquées avant la date de publication du présent document.

Lesnoobdelovalni stroji - Varnost - 4. del: Krožne žage z vertikalno ploščo (ISO/DIS 19085-4:2026)

Ta dokument določa varnostne zahteve in ukrepe za ročno nalagane in razlagane vertikalne krožne žage za plošče (opredeljene v 3.1), ki so sposobne neprekinjene proizvodne uporabe, z ročnim podajanjem ali integriranim podajanjem, v nadaljevanju imenovane tudi "stroji".
Ta dokument obravnava vse pomembne nevarnosti, nevarne situacije in dogodke, kot so navedeni v Prilogi A, ki so pomembni za stroje, ko so ti upravljani, nastavljeni in vzdrževani v skladu z namenom in pogoji, ki jih predvideva proizvajalec, vključno z razumno predvidljivo zlorabo. Upoštevane so tudi faze transporta, montaže, razstavljanja, onemogočanja in razgradnje.
Ta dokument je prav tako uporaben za stroje, opremljene z eno ali več od naslednjih naprav/dodatnih delovnih enot, katerih nevarnosti so bile obravnavane:
- integrirana naprava za podajanje;
- naprava za zarezovanje;
- naprava za rezanje pod kotom;
- naprava za sredinsko podporo;
- programabilni končni omejevalniki za vzporedne vertikalne reze;
- naprava za utore z rezkalnim orodjem s širino reza, ki ne presega 27 mm;
- potiskač plošč;
- naprava za spuščanje plošč;
- omejevalne naprave za obdelovanec med horizontalnimi rezi.
Stroji so zasnovani za rezanje plošč, sestavljenih iz:
a) masivnega lesa;
b) materialov s podobnimi fizikalnimi lastnostmi kot les (glej ISO 19085-1:2021, 3.2);
c) kompozitnih materialov z jedrom, ki je na primer iz poliuretana ali mineralnega materiala, laminiranega z lahkimi zlitinami;
d) kompozitnih materialov s polimerno matrico in ojačanih termoplastičnih/termoset/elastomernih materialov;
e) mavčnih plošč, mavčno vezanih vlaknenih plošč;
f) aluminijastih plošč s satovjem;
g) mineralnih plošč z inženirsko matrico, silikatnih plošč;
h) plošč iz lahkih aluminijastih zlitin;
i) kompozitnih plošč, izdelanih iz zgoraj navedenih materialov.
Ta dokument se ne uporablja za stroje
- s pritiskalnim nosilcem in žagalno enoto, nameščeno za podporo obdelovanca,
- kjer so vodila, po katerih se žagalna enota premika vertikalno, fiksirana na okvir stroja in horizontalni rez je mogoče izvesti le z ročnim podajanjem plošče,
- zasnovane za rezanje le v vertikalni smeri,
- ki samodejno izvajajo dva ali več rezalnih ciklov zaporedoma,
- namenjene za uporabo v potencialno eksplozivnem okolju, in
- proizvedene pred objavo tega dokumenta.

General Information

• Status: Not Published
• Public Enquiry End Date: 09-Aug-2026
• ICS: 13.110 - Safety of machinery
• ICS: 25.080.60 - Sawing machines
• ICS: 79.120.10 - Woodworking machines
• Technical Committee: VSN - Safety of machinery
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 10-Jun-2026
• Due Date: 28-Oct-2026
• Directive: Not Harmonized2023/1230 - Regulation (EU) 2023/1230 of the European Parliament and of the Council of 14 June 2023 on machinery and repealing Directive 2006/42/EC of the European Parliament and of the Council and Council Directive 73/361/EEC (Text with EEA relevance)
• Mandate: M/605 - COMMISSION IMPLEMENTING DECISION of 20.1.2025 on a standardisation request to the European Committee for Standardization and to the European Committee for Electrotechnical Standardization as regards machinery and related products in support of Regulation (EU) 2023/1230 of the European Parliament and of the Council
• Ref Project: prEN ISO 19085-4 - Woodworking machines - Safety - Part 4: Vertical panel circular sawing machines (ISO/DIS 19085-4:2026)

Relations

• Referred By: SIST EN ISO 15923-1:2025 - Water quality - Determination of selected parameters by discrete analysis systems - Part 1: Ammonium, nitrate, nitrite, chloride, orthophosphate, sulfate and silicate with photometric detection (ISO 15923-1:2013)
• Effective Date: 28-Jan-2026
• Referred By: SIST EN ISO 23548:2025 - Measurement of radioactivity - Alpha emitting radionuclides - Generic test method using alpha spectrometry (ISO 23548:2024)
• Effective Date: 28-Jan-2026
• Referred By: SIST EN ISO 23697-1:2026 - Water quality - Determination of total bound nitrogen (ST-TNb) in water using small-scale sealed tubes - Part 1: Dimethylphenol colour reaction (ISO 23697-1:2023)
• Effective Date: 28-Jan-2026
• Referred By: SIST EN ISO 13165-3:2025 - Water quality - Radium-226 - Part 3: Test method using coprecipitation and gamma-ray spectrometry (ISO 13165-3:2024)
• Effective Date: 28-Jan-2026
• Referred By: SIST EN ISO 23695:2026 - Water quality - Determination of ammonium nitrogen in water - Small-scale sealed tube method (ISO 23695:2023)
• Effective Date: 28-Jan-2026
• Referred By: SIST EN ISO 23696-2:2026 - Water quality - Determination of nitrate in water using small-scale sealed tubes - Part 2: Chromotropic acid colour reaction (ISO 23696-2:2023)
• Effective Date: 28-Jan-2026
• Referred By: SIST EN ISO 23697-2:2026 - Water quality - Determination of total bound nitrogen (ST-TNb) in water using small-scale sealed tubes - Part 2: Chromotropic acid colour reaction (ISO 23697-2:2023)
• Effective Date: 28-Jan-2026
• Referred By: SIST EN ISO 19361:2025 - Measurement of radioactivity - Determination of beta emitters activities -Test method using liquid scintillation counting (ISO 19361:2025)
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 17892:2024 - Water quality - Determination of selected per- and polyfluoroalkyl substances in drinking water - Method using liquid chromatography/tandem-mass spectrometry (LC-MS/MS)
• Effective Date: 28-Jan-2026
• Referred By: SIST EN ISO 23696-1:2026 - Water quality - Determination of nitrate in water using small-scale sealed tubes - Part 1: Dimethylphenol colour reaction (ISO 23696-1:2023)
• Effective Date: 28-Jan-2026
• Revises: SIST EN ISO 19085-4:2025 - Woodworking machines - Safety - Part 4: Vertical panel circular sawing machines (ISO 19085-4:2024)
• Effective Date: 09-Jul-2025

Overview

oSIST prEN ISO 19085-4:2026:2026 outlines essential safety requirements for vertical panel circular sawing machines used in woodworking and related industries. Developed by CEN and aligning with ISO/DIS 19085-4:2026, this standard ensures that manually loaded and unloaded machines with hand or integrated feed used for continuous production operate safely. It addresses significant hazards and risks associated with machine operation, adjustment, maintenance, transport, assembly, and dismantling, while also considering foreseeable misuse.

This standard is directly relevant to manufacturers, suppliers, and users of woodworking machinery, as well as for organizations and authorities involved in workplace safety regulation. By adopting oSIST prEN ISO 19085-4:2026, organizations demonstrate compliance with European requirements and best practices for the safe manufacture and use of vertical panel circular sawing machines.

Key Topics

• Comprehensive Scope of Safety: Covers all significant mechanical, electrical, and ergonomic hazards, including risks associated with installation, transport, maintenance, and end-of-life processes.
• Machine Types Addressed: Applies to vertical panel circular sawing machines capable of cutting various materials such as:
  • Solid wood
  • Wood-like materials
  • Composite and polymer-matrix panels
  • Gypsum and mineral boards
  • Aluminium and honeycomb panels
• Additional Equipment Covered: Ensures safety for machines equipped with:
  • Integrated feed devices
  • Scoring devices
  • Angle cutting and middle support units
  • Programmable end stops
  • Grooving attachments (milling tools)
  • Panel pushers and lowering devices
  • Stop devices for horizontal cuts
• Exclusions: Does not apply to certain machine configurations, including those with pressure beams behind the workpiece, machines restricted to vertical cuts, or machines for use in explosive atmospheres.

Applications

The practical value of oSIST prEN ISO 19085-4:2026:2026 lies in its wide applicability across woodworking, construction, furniture manufacturing, and panel processing industries. Key practical applications include:

• Workplace Safety Compliance: Assists organizations in meeting regulatory requirements, reducing accident risk, and implementing robust workplace health and safety practices for vertical panel saws.
• Design and Manufacturing Guidance: Provides machine manufacturers with clear criteria for safety, informing design, construction, and integration of new machinery.
• Operation and Maintenance: Offers end-users and maintenance teams standardized procedures for safe operation, adjustment, troubleshooting, and servicing, minimizing risk during both routine and exceptional tasks.
• Procurement and Risk Assessment: Facilitates project managers and procurement specialists in specifying compliant equipment, while enabling health and safety managers to conduct effective risk assessments.
• Instruction and Markings: Stipulates comprehensive user instructions, warning devices, and markings, supporting clear communication and proper machine use.

Related Standards

For effective implementation, oSIST prEN ISO 19085-4:2026 refers to and complements other international standards including:

• ISO 12100:2010: General principles for machinery safety, risk assessment, and reduction
• ISO/DIS 19085-1:2026: Common requirements for woodworking machine safety
• ISO 13849-1:2023: Safety-related parts of control systems
• ISO 13857:2019: Safety distances to prevent hazard zone access
• EN 847-1:2017: Safety requirements for woodworking tools

Incorporating oSIST prEN ISO 19085-4:2026:2026 into operations ensures alignment with a robust framework of international safety standards for woodworking machinery. This not only reduces risks but also enhances operational efficiency and supports legal compliance within Europe and beyond.

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Keywords: woodworking machine safety, vertical panel saw, circular sawing machines, oSIST prEN ISO 19085-4:2026, CEN standard, machine guarding, risk reduction, industrial safety standards, wood processing equipment, workplace safety compliance

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2026
Lesnoobdelovalni stroji - Varnost - 4. del: Krožne žage z vertikalno ploščo (ISO/DIS
19085-4:2026)
Woodworking machines - Safety - Part 4: Vertical panel circular sawing machines
(ISO/DIS 19085-4:2026)
Holzbearbeitungsmaschinen - Sicherheit - Teil 4: Vertikalplattenkreissägemaschinen
(ISO/DIS 19085-4:2026)
Machines à bois - Sécurité - Partie 4: Scies circulaires à panneaux verticales (ISO/DIS
19085-4:2026)
Ta slovenski standard je istoveten z: prEN ISO 19085-4
ICS:
13.110 Varnost strojev Safety of machinery
25.080.60 Strojne žage Sawing machines
79.120.10 Lesnoobdelovalni stroji Woodworking machines
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
International
Standard
ISO/DIS 19085-4
ISO/TC 39/SC 4
Woodworking machines — Safety —
Secretariat: UNI
Part 4:
Voting begins on:
Vertical panel circular sawing 2026-06-01
machines
Voting terminates on:
2026-08-24
Machines à bois — Sécurité —
Partie 4: Scies circulaires à panneaux verticales
ICS: 79.120.10; 13.110
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS.
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 SUPPORTING DOCUMENTATION.
Reference number
ISO/DIS 19085-4:2026(en)
DRAFT
ISO/DIS 19085-4:2026(en)
International
Standard
ISO/DIS 19085-4
ISO/TC 39/SC 4
Woodworking machines — Safety —
Secretariat: UNI
Part 4:
Voting begins on:
Vertical panel circular sawing
2026-06-01
machines
Voting terminates on:
2026-08-24
Machines à bois — Sécurité —
Partie 4: Scies circulaires à panneaux verticales
ICS: 79.120.10; 13.110
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2026
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
BE CONSIDERED IN THE LIGHT OF THEIR
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
or ISO’s member body in the country of the requester.
NATIONAL REGULATIONS.
ISO copyright office
RECIPIENTS OF THIS DRAFT ARE INVITED
CP 401 • Ch. de Blandonnet 8
TO SUBMIT, WITH THEIR COMMENTS,
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NOTIFICATION OF ANY RELEVANT PATENT
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PROVIDE SUPPORTING DOCUMENTATION.
Email: [e-mail]
Website: www.iso.org
Published in Switzerland Reference number
ISO/DIS 19085-4:2026(en)
ii
ISO/DIS 19085-4:2026(en)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 2
3 Terms and definitions . 2
4 Safety requirements and measures for controls . 6
4.1 Safety and reliability of control systems.6
4.2 Control devices .6
4.2.1 General .6
4.2.2 Hand-held control set .6
4.2.3 Reset device .6
4.3 Start .6
4.3.1 Direct start .6
4.3.2 Start via control power-on .7
4.4 Safe stops .7
4.4.1 Stop function .7
4.4.2 Normal stop .7
4.4.3 Operational stop .8
4.4.4 Emergency stop .8
4.5 Braking function of tools .8
4.6 Operating modes .8
4.7 Tool speed .8
4.7.1 Speed changing by shifting the belts on the pulleys .8
4.7.2 Speed changing by incremental speed change motor .8
4.7.3 Speed control by frequency inverter .8
4.8 Failure of any energy supply .8
4.9 Manual reset control .8
4.10 Standstill detection .8
4.11 Machine moving parts speed monitoring.9
4.12 Time delay.9
4.13 Teleservice .9
4.14 Protection against corruption .9
5 Safety requirements and protective measures against mechanical hazards . 9
5.1 Stability .9
5.2 Risk of break-up during operation .9
5.3 Tool and tool fixing design .9
5.3.1 General .9
5.3.2 Spindle locking .9
5.3.3 Circular saw blade fixing device .10
5.3.4 Flange dimension for circular saw blades .10
5.4 Tool brake . .10
5.5 Safeguards .10
5.5.1 Fixed guards .10
5.5.2 Interlocking movable guards .10
5.5.3 Hold-to-run control .10
5.5.4 Two-hand control .10
5.5.5 Electro-sensitive protective equipment (ESPE) .10
5.5.6 Pressure-sensitive protective equipment (PSPE) .11
5.5.7 Enabling control .11
5.6 Prevention of access to hazardous moving parts .11
5.6.1 Guarding of tools .11
5.6.2 Safeguarding of shearing and crushing zones . 13
5.6.3 Guarding of the rear side .14

iii
ISO/DIS 19085-4:2026(en)
5.6.4 Guarding of drives .14
5.7 Impact hazard .14
5.8 Clamping devices .14
5.9 Measures against ejection .14
5.9.1 Devices against ejection and choice of class of guards .14
5.9.2 Guards of class A, materials and thickness .14
5.9.3 Guards of class B, materials and thickness . 15
5.9.4 Anti-kickback devices . 15
5.10 Workpiece supports and guides . .16
5.10.1 Workpiece support .16
5.10.2 Middle support device .17
5.10.3 Angle cutting device .17
6 Safety requirements and protective measures against other hazards . 17
6.1 Fire .17
6.2 Noise .17
6.2.1 Noise reduction at the design stage .17
6.2.2 Noise emission measurement and declaration .17
6.3 Emission of chips and dust .17
6.4 Electricity .18
6.5 Ergonomics and handling .18
6.6 Lighting .19
6.7 Pneumatics .19
6.8 Hydraulics .19
6.9 Electromagnetic compatibility.19
6.10 Laser .19
6.11 Static electricity.19
6.12 Errors of fitting .19
6.13 Isolation .19
6.14 Maintenance .19
6.15 Risks due to surfaces, edges or angles .19
6.16 Relevant but not significant hazards .19
7 Information for use . 19
7.1 Warning devices .19
7.2 Marking . 20
7.2.1 Marking principles and methods . 20
7.2.2 Marking contents . 20
7.3 Instructions . 20
7.3.1 Instructions principles and drafting . 20
7.3.2 Instructions handbook contents . 20
Annex A (informative) List of significant hazards .22
Annex B (informative) Performance level required .24
Annex C (normative) Brake test.26
Annex D (normative) Impact test for guards .27
Annex E (normative) Noise test code .28
Annex F (normative) Riving knife rigidity tests .31
Annex ZA (informative) ZA - Relationship between this European Standard and the essential
requirements of Regulation (EU) 2023/1230 aimed to be covered .33

iv
ISO/DIS 19085-4:2026(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
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 document 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).
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 Committee ISO/TC 39, Machine tools, Subcommittee SC 4,
Woodworking machines, in collaboration with the European Committee for Standardization (CEN) Technical
Committee CEN/TC 142, Woodworking machines — Safety, in accordance with the Agreement on technical
cooperation between ISO and CEN (Vienna Agreement).
This document is intended to be used in conjunction with ISO 19085-1:2026.
This third edition cancels and replaces the second edition (ISO 19085-4:2024), which has been technically
revised. The main changes are as follows:
— the way of reference from this document to ISO 19085-1:2026 has been simplified, as well as its
explanation in Introduction, and aligned to ISO drafting rules;
— the verification methods at the end of each subclause have been deleted, since self-evident;
— 4.2, 4.6, 7.2, 7.3 have been rearranged, to follow the new subdivision in ISO 19085-1:2026;
— 4.7.3, 5.10 have been subdivided, to follow the new subdivision in ISO 19085-1:2026;
— 5.4, 5.9 have been simplified in structure, for easier reading.
A list of all parts in the ISO 19085 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.

v
ISO/DIS 19085-4:2026(en)
Introduction
The ISO 19085 series provides technical safety requirements for the design and construction of
woodworking machinery, as well as for the content of the relevant instruction handbook. It concerns
designers, manufacturers, suppliers and importers of the machines specified in the Scope.
This document is a type-C standard as defined in ISO 12100.
This document is of relevance, in particular, for the following stakeholder groups representing the market
players with regard to machinery safety:
— machine manufacturers (small, medium and large enterprises);
— health and safety bodies (e.g. regulators, accident prevention organisations, market surveillance).
Others can be affected by the level of machinery safety achieved with the means of the document by the
above-mentioned stakeholder groups:
— machine users/employers (small, medium and large enterprises);
— machine users/employees (e.g. trade unions, organizations for people with special needs);
— service providers, for example, for maintenance (small, medium and large enterprises);
— consumers (in case of machinery intended for use by consumers).
The above-mentioned stakeholder groups have been given the possibility to participate in the drafting
process of this document.
The machinery concerned and the extent to which hazards, hazardous situations or hazardous events are
covered are indicated in the Scope of this document.
When requirements of this type-C standard are different from those which are stated in type-A or type-B
standards (as defined in ISO 12100), the requirements of this type-C standard take precedence over the
requirements of the other standards for machines that have been designed and built according to the
requirements of this type-C standard.
In this document, a subclause can refer to the same subclause of ISO 19085-1:2026 or give specific
requirements or both.
vi
DRAFT International Standard ISO/DIS 19085-4:2026(en)
Woodworking machines — Safety —
Part 4:
Vertical panel circular sawing machines
1 Scope
This document specifies the safety requirements and measures for manually loaded and unloaded vertical
panel circular sawing machines (defined in 3.1) capable of continuous production use, with hand feed or
integrated feed, hereinafter referred to also as “machines”.
This document deals with all significant hazards, hazardous situations or hazardous events, listed in
Annex A, relevant to the machines when used as intended and under conditions of misuse which are
reasonably foreseeable, as well as when transported, assembled, adjusted, maintened, dismantling, disabled
and scrapped.
The machines are designed for cutting panels consisting of:
— solid wood;
— material with similar physical characteristics to wood (see ISO 19085-1:2021, 3.2);
— composite materials with core consisting, for example, of polyurethane or mineral material laminated
with light alloy;
— polymer-matrix composite materials and reinforced thermoplastic/thermoset/elastomeric materials;
— gypsum boards, gypsum bounded fibreboards;
— honeycomb aluminium boards;
— matrix engineered mineral boards, silicate boards;
— aluminium light alloy plates;
— composite boards made from the materials listed above.
This document is also applicable to machines fitted with one or more of the following devices or additional
working units, whose hazards have been dealt with:
— an integrated feed device;
— a device for scoring;
— an angle cutting device;
— a middle support device;
— programmable end stops for parallel vertical cuts;
— a device for grooving with a milling tool with a cutting width not exceeding 27 mm;
— a panel pusher;
— a panel lowering device;
— stop devices for workpiece during horizontal cuts.

ISO/DIS 19085-4:2026(en)
This document does not apply to machines
— with pressure beam and saw unit mounted behind the workpiece support,
— where the guide rails on which the saw unit moves vertically are fixed on the machine frame and the
horizontal cut can only be made by manually feeding the panel,
— designed to cut in vertical direction only,
— automatically performing two or more cutting cycles in sequence,
— intended for use in potentially explosive atmosphere, and
— manufactured prior to the publication of this document.
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 cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk reduction
ISO 13849-1:2023, Safety of machinery — Safety-related parts of control systems — Part 1: General principles
for design
ISO 13857:2019, Safety of machinery — Safety distances to prevent hazard zones being reached by upper and
lower limbs
ISO/DIS 19085-1, Woodworking machines — Safety — Part 1: Common requirements
EN 847-1:2017, Tools for woodworking - Safety requirements - Part 1: Milling tools, circular saw blades
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 12100:2010, ISO 13849-1:2023,
ISO/DIS 19085-1 :2026 and the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
vertical panel circular sawing machine
machine designed for cutting panels, with a nearly vertical workpiece support and a nearly vertical beam
mounted parallel to the support and moving horizontally along it, carrying a saw unit (3.2) mounted in front
of the workpiece support
Note 1 to entry: An example of a vertical panel circular sawing machine is shown in Figure 1. The machine can have a
hand feed or an integrated feed .

ISO/DIS 19085-4:2026(en)
Key
1 frame
2 moving beam
3 saw unit
4 base of workpiece support
5 middle support device
6 programmable end stop
7 panel pusher with clamping system
8 panel lowering device with clamping system
Figure 1 — Example of a vertical panel circular sawing machine
3.2
saw unit
unit, incorporating and supporting the tools, mounted onto the moving beam
Note 1 to entry: The tools in the saw unit can be saw blades or a milling tool.
Note 2 to entry: The saw unit has two movements in regard to the moving beam: along its whole length for vertical
cuts, and perpendicular to it for infeed (3.8) and outfeed (3.9) movements.
3.3
main saw blade
circular saw blade used to cut the workpiece into smaller pieces
3.4
scoring saw blade
circular saw blade used to pre-cut the workpiece surface, to avoid its damage by the main saw blade (3.3)
3.5
rest position
position of the saw unit (3.2) most far away from the workpiece support
3.6
pivoting
saw unit rotation, either manual or power driven, between the two perpendicular orientations to perform
horizontal or vertical cuts
ISO/DIS 19085-4:2026(en)
3.7
cutting stroke
vertical or horizontal feed from the beginning to the end of a cut
Note 1 to entry: to perform a cutting stroke, either the saw unit (3.2) moves along the moving beam, or the moving
beam, with the saw unit fixed to it, moves along the workpiece support.
3.8
infeed movement
short movement of the saw unit (3.2) perpendicular to the moving beam from the rest position (3.5) towards
the workpiece support before a cutting stroke (3.7)
Note 1 to entry: The infeed movement is power driven on machines with integrated feed and can be power driven or
not on machines with manual feed.
3.9
outfeed movement
short movement of the saw unit (3.2) perpendicular to the moving beam back to the rest position (3.5) after
a cutting stroke (3.7)
Note 1 to entry: The outfeed movement is power driven on machines with integrated feed and can be power driven or
not on machines with manual feed.
3.10
cutting cycle
single cut operation consisting of a continuous sequence of infeed movement
(3.8), cutting stroke (3.7) and outfeed movement (3.9)
Note 1 to entry: A further movement of the saw unit back to its starting position can follow.
3.11
middle support device
device fitted to the workpiece support for supporting a workpiece with small dimensions
3.12
angle cutting device
device fitted to the workpiece support of the machine to position the workpiece in angled orientation
Note 1 to entry: An example of an angle cutting device is shown in Figure 2.

ISO/DIS 19085-4:2026(en)
Key
1 support system
2 lockable device for adjusting the cutting angle
3 scale for indicating the adjusted cutting angle
4 workpiece support
5 workpiece clamping
6 cutting line
Figure 2 — Example of an angle cutting device
3.13
programmable end stop
power-driven device fitted to the workpiece support of the machine designed for parallel vertical cuts at
predetermined dimensions
Note 1 to entry: Machines can be provided with one or more programmable end stops.
3.14
panel pusher
power driven movable workpiece handling device used to move the workpiece horizontally along the
workpiece support and fitted with clamping devices for holding the workpiece in position
Note 1 to entry: The positioning of the panel pusher can be under numerical control.
3.15
panel lowering device
power driven movable workpiece handling device used to move the workpiece vertically along the workpiece
support and fitted with at least two clamping devices for holding the workpiece in position
Note 1 to entry: The positioning of the panel lowering device can be under numerical control.

ISO/DIS 19085-4:2026(en)
Note 2 to entry: The panel lowering device allows cutting the panel at the bottom or trimming its lower edge.
4 Safety requirements and measures for controls
4.1 Safety and reliability of control systems
ISO DIS 19085-1:2026, 4.1, shall apply.
Annex B, Table B.1 summarizes the performance levels required (PL ) in Clause 4 and Clause 5 for all safety
r
functions.
4.2 Control devices
4.2.1 General
ISO DIS 19085-1:2026, 4.2.1, shall apply.
The electrical hand-operated control devices of the machine, i.e. for start, normal stop, cutting stroke and
return stroke (on machines with integrated feed), and, if fitted, for programmable end stop, tool spindle
speed changing, panel pusher, panel lowering device, shall be positioned on the front side of the main control
panel fixed to the moving beam.
The hand-operated control devices for the power-driven saw unit infeed and outfeed movements shall be
positioned either on the saw unit, or on the front side of the main control panel fixed to the moving beam.
If an emergency stop control device is required, it shall be positioned on the front side of the main control
panel together with the start and normal stop control devices.
For machines with integrated feed, additional emergency stop control devices shall be provided at each end
of the machine frame and on any auxiliary control panel.
4.2.2 Hand-held control set
Hand-held control set is not relevant to these machines.
4.2.3 Reset device
ISO DIS 19085-1:2026, 4.2.3, shall apply.
4.3 Start
4.3.1 Direct start
ISO DIS 19085-1:2026, 4.3.1, shall apply.
PL requirements stated in ISO 19085-1:2026, 4.3.1, shall apply only to:
— the prevention of unexpected start of the tool drives;
— the prevention of unexpected start of the saw unit infeed movement;
— the interlocking of pivoting movements, powered or not, of the saw unit with saw unit rest position;
— the interlocking of start of tool drive with safeguards;
— the interlocking of the cutting stroke with tool drive.
Prevention of pivoting movements of the saw unit when it is not in the rest position may be achieved by
mechanical means and is not required to be arranged by the control system.

ISO/DIS 19085-4:2026(en)
The safety related part of control system (SRP/CS) for the following interlocks, related to powered
movements, shall achieve PL = b:
r
— infeed movement of the saw unit with moving beam horizontal locking for vertical cuts;
— infeed movement of the saw unit with saw unit vertical clamping for horizontal cuts;
— movement of the programmable end stop with saw unit rest position;
— vertical cutting stroke movement with moving beam horizontal locking;
— horizontal cutting stroke movement with saw unit vertical clamping;
— movement of the panel pusher with saw unit rest position;
— movement of the panel lowering device with saw unit rest position;
— programmed powered vertical movements of the saw unit before cutting cycle with saw unit rest
position.
The SRP/CS for prevention of unexpected start of the following powered movements, if fitted, shall achieve
PL = b:
r
— integrated feed;
— pivoting;
— vertical programmed powered movements of the saw unit before cutting cycle;
— programmable end stop.
Powered infeed movement shall be controlled by hold-to-run. Release of the hold-to-run control device
during infeed movement shall cause the immediate return of the saw unit to its rest position. Hold-to-run
control is not required for cutting stroke. A time delay may be used to detect the end of the infeed movement.
If fitted, the scoring saw blade spindle drive motor shall not be capable of being started before the main saw
blade drive motor.
The SRP/CS for interlocking between starting of the main saw blade drive motor and start of the scoring saw
blade spindle drive motor shall achieve PL = c.
r
4.3.2 Start via control power-on
Start via control power-on is not relevant to these machines.
4.4 Safe stops
4.4.1 Stop function
ISO DIS 19085-1:2026, 4.4.1, shall apply.
When cutting power to the saw spindles on machines with integrated feed, the cutting stroke shall be
stopped, and the saw unit shall be retracted to its rest position.
The SRP/CS for stopping the cutting stroke and retracting the saw unit to its rest position when cutting
power to the saw spindles shall achieve PL = c.
r
4.4.2 Normal stop
ISO DIS 19085-1:2026, 4.4.2, shall apply.

ISO/DIS 19085-4:2026(en)
4.4.3 Operational stop
Operational stop is not relevant to these machines.
4.4.4 Emergency stop
ISO DIS 19085-1:2026, 4.4.4, shall apply.
4.5 Braking function of tools
ISO DIS 19085-1:2026, 4.5, shall apply.
4.6 Operating modes
Operating modes other than the normal production mode are not relevant to these machines.
4.7 Tool speed
4.7.1 Speed changing by shifting the belts on the pulleys
Belt transmission is not relevant to these machines.
4.7.2 Speed changing by incremental speed change motor
ISO DIS 19085-1:2026, 4.7.2, shall apply.
4.7.3 Speed control by frequency inverter
4.7.3.1 General
ISO DIS 19085-1:2026, 4.7.3.1, shall apply except where the guards on the rear side of the machine are at
least of class B in accordance with 5.9.3 and have no gap.
4.7.3.2 Speed limit value manually selected on HMI
The manual selection of the speed limit value on the Human-Machine-Interface (HMI) is not relevant to these
machines.
4.7.3.3 Speed limit value pre-set by the machine manufacturer
ISO DIS 19085-1:2026, 4.7.3.3, shall apply except where the guards on the rear side of the machine are at
least of class B in accordance with 5.9.3 and have no gap.
4.8 Failure of any energy supply
ISO DIS 19085-1:2026, 4.8, shall apply.
4.9 Manual reset control
ISO DIS 19085-1:2026, 4.9, shall apply.
4.10 Standstill detection
Standstill detection is not relevant to these machines.

ISO/DIS 19085-4:2026(en)
4.11 Machine moving parts speed monitoring
ISO DIS 19085-1:2026, 4.11, shall apply.
The PL requirement stated in ISO 19085-1:2026, 4.11 shall apply to the speed monitoring of the saw unit, of
the moving beam and of the panel lowering device.
The SRP/CS for speed monitoring of the panel pusher shall achieve PL = c. As an exception, it may achieve
r
PL = b if additional measures against impact like mechanical stops are provided to prevent the workpiece
r
from being moved beyond the workpiece support.
4.12 Time delay
ISO DIS 19085-1:2026, 4.12, shall apply.
4.13 Teleservice
ISO DIS 19085-1:2026, 4.13, shall apply.
4.14 Protection against corruption
ISO DIS
...