Food processing machinery - Automatic dough dividers - Safety and hygiene requirements

1.1 This European Standard applies to the design and manufacture of standalone automatic dough dividers having a feed hopper, and which can be used separately or in a line in the food industry and shops (pastry making, bakeries, confectionery etc.) for dividing and additionally for moulding/rounding dough or pastry into adjustable portions to produce the required weight of dough piece during a dividing process. These machines can be fed by hand or mechanically.
This European Standard deals with all significant hazards, hazardous situations and events relevant to the transport, installation, adjustment, operation, cleaning, maintenance, dismantling, disassembling and scrapping of automatic dough dividers, when they are used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer (see Clause 4).
These machines are not intended to be cleaned with pressurized water.
1.2   This European Standard is not applicable to the following:
-   experimental and testing machines, under development by the manufacturer;
-   weighing devices;
-   pressure dough dividers, without a feed hopper, using knives for the dividing process;
-   lines with separate cutting or forming elements outside the housing;
-   lifting and tilting machines ) or other separate feeding machines;
-   additional hazards generated when the machine is used in a line or mechanically feed.
1.3   A noise test code is included in Annex A to assist manufacturers to measure noise levels for the purpose of the noise emission declaration.
1.4   This European Standard is not applicable to machines which are manufactured before its publication as EN.

Nahrungsmittelmaschinen - Teigteilmaschinen - Sicherheits- und Hygieneanforderungen

1.1   !Diese Europäische Norm gilt für die Gestaltung/Konstruktion und Herstellung von autarken Teigteilmaschinen, die über einen Einfülltrichter verfügen und einzeln oder in einer Prozesslinie angeordnet in der Nahrungsmittelindustrie und in handwerklichen Backstuben und Geschäften (Konditoreien, Bäckereien, Confiserien usw.) für das Teilen und darüber hinaus zum Langwirken/Rundwirken von Teig oder Blätterteig in einstellbare Portionen verwendet werden können, um das gewünschte Gewicht der Teigportion beim Teilvorgang zu erzielen. Diese Maschinen können automatisch oder von Hand beschickt werden.
Diese Europäische Norm behandelt alle signifikanten Gefährdungen, Gefährdungssituationen und Gefährdungsereignisse, die während Transport, Installation, Einstellarbeiten, Betrieb, Reinigung, Wartung, Zerlegung, Außerbetriebnahme und Demontage von Teigteilmaschinen auftreten können, wenn sie bestimmungsgemäß und unter Bedingungen von durch den Hersteller vernünftigerweise vorhersehbaren Fehlanwendungen verwendet werden (siehe Abschnitt 4).
Diese Maschinen sind nicht für eine Reinigung mit Druckwasser vorgesehen."
1.2   Diese Europäische Norm gilt nicht für Folgendes:
—   Versuchs- und Prüfmaschinen, die in der Entwicklung beim Hersteller sind;
—   Wägeeinrichtungen;
—   Teigpressen ohne Einfülltrichter, die Messer für den Teilvorgang verwenden;
—   Prozesslinien mit getrennten Schneid- und Formelementen außerhalb des Gehäuses;
—   Hub  und Kippeinrichtungen  oder andere separate Zuführeinrichtungen;
—   zusätzliche Gefährdungen, die bei der Anordnung der Maschine in einer Prozesslinie oder bei der mechanischen Beschickung entstehen.
1.3   Im Anhang A befindet sich zur Deklaration der Geräuschemission ein Verfahren zur Geräuschmessung als Hilfestellung für den Hersteller zur Geräuschmessung.
1.4   Diese Europäische Norm gilt nicht für Maschinen, die vor deren Veröffentlichung als EN gebaut wurden.

Machines pour les produits alimentaires - Diviseuses automatiques - Prescriptions relatives à la sécurité et à l'hygiène

1.1   La présente Norme européenne s'applique à la conception et à la fabrication de diviseuses automatiques autonomes, possédant une trémie d’alimentation, une sortie et un bâti compacte (voir 3.2).
Ces diviseuses automatiques sont utilisées individuellement ou dans une ligne de production dans l'industrie alimentaire et les commerces de l'alimentation (pâtisseries, boulangeries, confiseries, etc.) pour diviser la pâte ou la pâtisserie en portions ajustables afin de produire des pâtons d’un poids déterminé pendant le procédé de division. Ces machines peuvent être alimentées à la main ou mécaniquement.
La présente Norme européenne spécifie tous les phénomènes dangereux, situations et événements dangereux significatifs relatifs au transport, à l’installation, au réglage, au fonctionnement, au nettoyage, à la maintenance, au démontage, à la mise hors service et à la mise au rebut des diviseuses automatiques lorsqu’elles sont utilisées normalement et dans des conditions de mauvaise utilisation raisonnablement prévisibles par le fabricant (voir Article 4).
Ces machines ne sont pas destinées à être nettoyées avec de l’eau sous pression.
1.2   La présente Norme européenne ne s’applique pas aux machines suivantes :
-   les machines expérimentales et d'essais, en cours de mise au point par le fabricant ;
-   les dispositifs de pesée ;
-   les diviseuses à pression, sans trémie d’alimentation, utilisant des couteaux pour le procédé de division ;
-   lignes avec les éléments de découpe ou de mise en forme à l’extérieur du bâti ;
-   les élévateurs/basculeurs ) ou autres machines à alimentation séparée ;
-   aux phénomènes dangereux supplémentaires engendrés lorsque la machine est utilisée dans une ligne de production ou alimentée mécaniquement.
1.3   Un code d’essai acoustique est inclus dans l’Annexe A pour aider les fabricants à mesurer les niveaux de bruit en vue d’une déclaration d'émission sonore.
1.4   La présente Norme européenne ne s’applique pas aux machines qui ont été fabriquées avant sa date de publication sous forme de norme européenne.

Stroji za predelavo hrane - Avtomatski delilniki testa - Varnostne in higienske zahteve

General Information

Status
Published
Current Stage
9020 - Submission to 2 Year Review Enquiry - Review Enquiry
Due Date
15-Jul-2021
Completion Date
15-Jul-2021

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SLOVENSKI STANDARD
SIST EN 12042:2014+A1:2021
01-februar-2021
Stroji za predelavo hrane - Avtomatski delilniki testa - Varnostne in higienske
zahteve
Food processing machinery - Automatic dough dividers - Safety and hygiene
requirements

Nahrungsmittelmaschinen - Teigteilmaschinen - Sicherheits- und Hygieneanforderungen

Machines pour les produits alimentaires - Diviseuses automatiques - Prescriptions

relatives à la sécurité et à l'hygiène
Ta slovenski standard je istoveten z: EN 12042:2014+A1:2020
ICS:
67.260 Tovarne in oprema za živilsko Plants and equipment for the
industrijo food industry
SIST EN 12042:2014+A1:2021 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 12042:2014+A1:2021
---------------------- Page: 2 ----------------------
SIST EN 12042:2014+A1:2021
EN 12042:2014+A1
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2020
EUROPÄISCHE NORM
ICS 67.260 Supersedes EN 12042:2014
English Version
Food processing machinery - Automatic dough dividers -
Safety and hygiene requirements

Machines pour les produits alimentaires - Diviseuses Nahrungsmittelmaschinen - Teigteilmaschinen -

automatiques - Prescriptions relatives à la sécurité et à Sicherheits- und Hygieneanforderungen

l'hygiène

This European Standard was approved by CEN on 27 December 2013 and includes Amendment approved by CEN on 15 June

2020.

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, Turkey 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

© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12042:2014+A1:2020 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN 12042:2014+A1:2021
EN 12042:2014+A1:2020 (E)
Contents Page

European foreword ................................................................................................................................................................ 4

Introduction ............................................................................................................................................................................. 5

1 Scope ............................................................................................................................................................................. 6

2 Normative references ............................................................................................................................................. 6

3 Terms, definition and description ..................................................................................................................... 8

3.1 Terms and definitions ............................................................................................................................................ 8

3.2 Description ................................................................................................................................................................. 8

4 List of significant hazards .................................................................................................................................. 10

5 Safety and hygiene requirements and/or protective measures .......................................................... 11

5.1 General ...................................................................................................................................................................... 11

5.2 Mechanical hazards .............................................................................................................................................. 12

5.3 Electrical hazards .................................................................................................................................................. 21

5.4 Emergency stop ...................................................................................................................................................... 22

5.5 Unexpected start-up ............................................................................................................................................. 22

5.6 Noise reduction ...................................................................................................................................................... 22

5.7 Protection against flour dust emission ......................................................................................................... 22

5.8 Hygiene requirements ......................................................................................................................................... 22

5.9 Ergonomic principles ........................................................................................................................................... 24

5.10 Protection against spilling oil ........................................................................................................................... 24

5.11 Pneumatic and hydraulic equipment............................................................................................................. 24

6 Verification of safety and hygiene requirements and/or protective measures ............................. 24

7 Information for use .............................................................................................................................................. 26

7.1 Signals and warning ............................................................................................................................................. 26

7.2 Instruction handbook .......................................................................................................................................... 26

7.3 Marking ..................................................................................................................................................................... 28

Annex A (normative) Noise test code for automatic dividers – Grade 2 of accuracy ................................... 29

A.1 Installation and mounting conditions ........................................................................................................... 29

A.2 Operating conditions ........................................................................................................................................... 29

A.3 Measurements ........................................................................................................................................................ 29

A.4 Emission sound pressure level determination .......................................................................................... 29

A.5 Sound power level determination .................................................................................................................. 29

A.6 Measurement uncertainties .............................................................................................................................. 30

A.7 Information to be recorded ............................................................................................................................... 30

A.8 Information to be reported ............................................................................................................................... 30

A.9 Declaration and verification of noise emission values ............................................................................ 31

Annex B (normative) Principles of design to ensure the cleanability of automatic dividers ................... 32

B.1 Terms and definitions ......................................................................................................................................... 32

B.2 Materials of construction ................................................................................................................................... 32

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SIST EN 12042:2014+A1:2021
EN 12042:2014+A1:2020 (E)

B.3 Design ........................................................................................................................................................................ 34

Annex ZA (informative) Relationship between this European Standard and the essential

requirements of Directive 2006/42/EC aimed to be covered ............................................................... 49

Bibliography .......................................................................................................................................................................... 52

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SIST EN 12042:2014+A1:2021
EN 12042:2014+A1:2020 (E)
European foreword

This document (EN 12042:2014+A1:2020) has been prepared by Technical Committee CEN/TC 153

“Machinery intended for use with foodstuffs and feed”, 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 March 2021, and conflicting national standards shall

be withdrawn at the latest by March 2021.

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 includes Amendment 1 approved by CEN on 15 June 2020.
This document supersedes !EN 12042:2014".

The start and finish of text introduced or altered by amendment is indicated in the text by tags !".

This document has been prepared under a mandate given to CEN by the European Commission and the

European Free Trade Association, and supports essential requirements of EU Directive 2006/42/EC.

For relationship with EU Directive 2006/42/EC, see informative Annex ZA, which is an integral part of

this document.
Significant changes

The significant changes with respect to the previous edition EN 12042:2005+A1:2010 are listed below:

— Normative references updated;
— Clause 4: new presentation in a table;
— 5.2.2, zone 1:
— !the requirements don't distinguish between fed by hand or mechanically";

— addition of new requirements for pressure sensitive edge (see !5.2.2.1.2"), AOPD (see

!5.2.2.1.3"), cleaning of the hopper (se !5.2.2.1.6") and feeding assistance device

inside the hopper (see !5.2.2.1.7");
— new stopping time ≤ 0,35 s;
— new performance level d.

— 5.2.3, zone 2: Table 1 (Dimensions of the guard or tunnel) replaced by a reference to EN ISO 13857;

— Instruction handbook updated (environmental information).

According to the CEN-CENELEC Internal Regulations, the national standards organisations 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, Turkey and the

United Kingdom.
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SIST EN 12042:2014+A1:2021
EN 12042:2014+A1:2020 (E)
Introduction
This document is a type C standard as stated in EN ISO 12100:2010.

The machinery concerned and the extent to which hazards, hazardous situations and events are

covered are indicated in the scope of this document.

When provisions of this type C standard are different from those that are stated in type A or B

standards, the provisions of this type C standard take precedence over the provisions of the other

standards, for machines that have been designed and built according to the provisions of this type C

standard.
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SIST EN 12042:2014+A1:2021
EN 12042:2014+A1:2020 (E)
1 Scope

1.1 !This European Standard applies to the design and manufacture of standalone automatic dough

dividers having a feed hopper, and which can be used separately or in a line in the food industry, artisan

bakeries and shops (pastry making, bakeries, confectionery, etc.) for dividing and additionally for

moulding/rounding dough or pastry into adjustable portions to produce the required weight of dough

piece during a dividing process. These machines can be fed by hand or mechanically.

This European Standard deals with all significant hazards, hazardous situations and events relevant to

the transport, installation, adjustment, operation, cleaning, maintenance, dismantling, disassembling

and scrapping of automatic dough dividers, when they are used as intended and under conditions of

misuse which are reasonably foreseeable by the manufacturer (see Clause 4).
These machines are not intended to be cleaned with pressurized water."
1.2 This European Standard is not applicable to the following:
— experimental and testing machines, under development by the manufacturer;
— weighing devices;

— pressure dough dividers, without a feed hopper, using knives for the dividing process;

— lines with separate cutting or forming elements outside the housing;
— lifting and tilting machines or other separate feeding machines;

— additional hazards generated when the machine is used in a line or mechanically fed.

1.3 A noise test code is included in Annex A to assist manufacturers to measure noise levels for the

purpose of the noise emission declaration.

1.4 This European Standard is not applicable to machines which are manufactured before its

publication as EN.
2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated

references, the latest edition of the referenced document (including any amendments) applies.

EN 619:2002+A1:2010, Continuous handling equipment and systems - Safety and EMC requirements for

equipment for mechanical handling of unit loads

EN 894-4:2010, Safety of machinery - Ergonomics requirements for the design of displays and control

actuators - Part 4: Location and arrangement of displays and control actuators

EN ISO 14120:2015, Safety of machinery — Guards — General requirements for the design and

construction of fixed and movable guards (ISO 14120:2015)
1) See EN 13288.
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SIST EN 12042:2014+A1:2021
EN 12042:2014+A1:2020 (E)

EN ISO 14118:2018, Safety of machinery — Prevention of unexpected start-up (ISO 14118:2017)

EN ISO 14119:2013, Safety of machinery — Interlocking devices associated with guards - Principles for

design and selection (ISO 14119:2013)

EN 1672-2:2005+A1:2009, Food processing machinery - Basic concepts - Part 2: Hygiene requirements

EN 60204-1:2006, Safety of machinery - Electrical equipment of machines - Part 1: General requirements

(IEC 60204-1:2005)
EN 60529, Degrees of protection provided by enclosures (IP code) (IEC 60529)

!EN ISO 7010:2012, Graphical symbols - Safety colours and safety signs - Registered safety signs (ISO

7010:2011)"

EN ISO 3743-1:2010, Acoustics - Determination of sound power levels and sound energy levels of noise

sources using sound pressure - Engineering methods for small movable sources in reverberant fields - Part

1: Comparison method for a hard-walled test room (ISO 3743-1:2010)

EN ISO 3744:2010, Acoustics - Determination of sound power levels and sound energy levels of noise

sources using sound pressure - Engineering methods for an essentially free field over a reflecting plane

(ISO 3744:2010)

EN ISO 4413, Hydraulic fluid power - General rules and safety requirements for systems and their

components (ISO 4413)

EN ISO 4414, Pneumatic fluid power - General rules and safety requirements for systems and their

components (ISO 4414)

EN ISO 4871:2009, Acoustics - Declaration and verification of noise emission values of machinery and

equipment (ISO 4871)

EN ISO 11201:2010, Acoustics - Noise emitted by machinery and equipment - Determination of emission

sound pressure levels at a work station and at other specified positions in an essentially free field over a

reflecting plane with negligible environmental corrections (ISO 11201:2010)

EN ISO 12100:2010, Safety of machinery - General principles for design - Risk assessment and risk

reduction (ISO 12100:2010)

EN ISO 13857:2008, Safety of machinery - Safety distances to prevent hazard zones being reached by

upper and lower limbs (ISO 13857:2008)

!EN ISO 13849-1:2015, Safety of machinery - Safety-related parts of control systems - Part 1: General

principles for design (ISO 13849-1:2015)"

EN ISO 13855:2010, Safety of machinery - Positioning of safeguards with respect to the approach speeds

of parts of the human body (ISO 13855:2010)

EN ISO 13856-1, Safety of machinery - Pressure-sensitive protective devices - Part 1: General principles for

design and testing of pressure-sensitive mats and pressure-sensitive floors (ISO 13856-1)

EN ISO 13856-2, Safety of machinery - Pressure-sensitive protective devices - Part 2: General principles for

design and testing of pressure-sensitive edges and pressure-sensitive bars (ISO 13856-2)

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SIST EN 12042:2014+A1:2021
EN 12042:2014+A1:2020 (E)

!EN ISO 14122-2:2016, Safety of machinery - Permanent means of access to machinery - Part 2:

Working platforms and walkways (ISO 14122-2:2016)"
3 Terms, definition and description
3.1 Terms and definitions

For the purposes of this document, the terms and definitions given in EN ISO 12100:2010 and the

following apply.
3.1.1
stopping time (time for hazard elimination)

period between the point at which the interlocking device initiates the stop command and the point at

which the risk from hazardous machine functions has passed
!deleted text"
3.2 Description

The dividers in the scope consist of the elements listed below (including optional equipment) (see

Figure 1):
1) loading hopper;

2) feeding assistance device inside the hopper (optional, see one example at Figure 2);

3) dividing device which can be of one of the following types:
— rotating drum with chamber and piston;
— piston with or without cutting slide;
— rotating blades or cutting devices (e.g. knives, star rollers);
— and the operating mechanisms;
4) flour duster at the delivery of pieces of dough (optional);
5) one or more conveyor belts designed to discharge pieces of dough;

6) one or more drive units to operate the dividing device and the discharge devices;

7) miscellaneous devices, e.g. to set the volume of the portions;
8) control panel;
9) oiling device (optional, not included in Figure 1);
10) moulding/rounding device (optional, not included in Figure 1).
---------------------- Page: 10 ----------------------
SIST EN 12042:2014+A1:2021
EN 12042:2014+A1:2020 (E)
Figure 1 — Main parts of an automatic dough divider
Key
1 star rollers
2 feeding assistance device (rollers)

Figure 2 — Example of a hopper equipped with a feeding assistance device and star rollers

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SIST EN 12042:2014+A1:2021
EN 12042:2014+A1:2020 (E)
4 List of significant hazards

This clause contains all the significant hazards, hazardous situations and events identified by risk

assessment as significant for this type of machinery and which require action to eliminate or reduce the

risk (see Table 1).
Table 1 — List of significant hazards
Clause/subclause in
Hazards, hazardous situations
Location or cause this European
and hazardous events
Standard
Mechanical hazards (see Figure 3)
Zone 1 - dividing zone or feeding
— shearing, crushing and cutting assistance device zone (if any)
access via the hopper
Zone 2 - access to dividing
mechanisms and other moving parts
— entanglement and crushing
via discharge opening/discharge
5.2
belt
Zone 3 - discharge belt, in-running
— drawing-in
nip between belt and roller
— crushing, impact, shearing and Zone 4 - drive mechanisms and
drawing-in other moving internal components
— entanglement Zone 5 - flour duster
Electrical hazards Electric shock from direct or indirect 5.3
contact with live components
external influences on electrical
equipment (e.g. cleaning with water)
Stopping of the machine No access to the normal OFF of the 5.4
machine
Unexpected start-up Start-up of the machine 5.5
Hazards generated by noise Hearing damage, accidents due to 5.6
interference with speech
7.2
communication and interference
with the perception of acoustic
signals
Hazards generated by materials 5.7
Flour dusters
and substances (inhalation of dust)
Hazards generated by neglecting e.g. contamination by microbial 5.8
hygienic design principles growth or foreign materials
Hazards generated by neglecting During operation, cleaning and 5.9
ergonomic principles maintenance
If divider oil is allowed to spill onto 5.10
Hazards generated by spilling oil
the floor around the divider.
Hazards generated by pneumatic Ejection of parts, explosion and 5.11
and hydraulic equipment injection of fluid
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SIST EN 12042:2014+A1:2021
EN 12042:2014+A1:2020 (E)
Figure 3 illustrates the danger zones associated with the mechanical hazards:

— Zone 1: dividing zone or feeding assistance device zone (if any) access via the hopper;

— Zone 2: access to dividing mechanisms and other moving parts via discharge opening/discharge bel

— Zone 3: discharge belt, in-running nip between belt and roller;
— Zone 4: drive mechanisms and other moving internal components;
— Zone 5: flour duster.
Key
1 zone 1
2 zone 2
3 zone 3
4 zone 4
5 zone 5
Figure 3 — Danger zones associated with mechanical hazards
5 Safety and hygiene requirements and/or protective measures
5.1 General

Machinery shall comply with the safety requirements and/or protective measures of this clause.

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SIST EN 12042:2014+A1:2021
EN 12042:2014+A1:2020 (E)

In addition, the machine shall be designed according to the principles of EN ISO 12100:2010 for

relevant but not significant hazards, which are not dealt with by this document.

Fixing systems of fixed guards or of parts of the machine acting as such shall remain attached to the

guards or to the machinery when the guards are removed.
5.2 Mechanical hazards
5.2.1 General

Guards shall comply with !EN ISO 14120:2015". Where reference is made to interlocking devices

throughout Clause 5, they can be interlocked without guard locking and shall comply with

!EN ISO 14119:2013", Clause 5 and Clause 6.

Where the interlocking mechanism has movable parts, e.g. position switches, these shall be protected

from contamination by dough or dry ingredients, e.g. by mounting them within the machine body.

!The safety-related parts of the control systems referring to the safeguarding of the access to

hazardous zones through the hopper shall present at least a performance level “d” defined in

accordance with EN ISO 13849-1:2015.

The safety-related parts to other safety systems shall present at least a performance level “c” defined in

accordance with EN ISO 13849-1:2015."

5.2.2 Zone 1: Access to the dividing zone or feeding assistance device zone if any, via the hopper

!deleted text"
5.2.2.1 Feeding — Safeguarding at the hopper
5.2.2.1.1 General

Access via the hopper opening to the danger zone shall be prevented while the machine is in operation.

!The access to the danger zones in the feed intake hopper shall be restricted or prevented by at least

one of the following":

— a pressure sensitive edge !or pressure sensitive bar" (see !5.2.2.1.2" and Figure 4);

— an AOPD (see !5.2.2.1.3");
— a swan neck hopper (see !5.2.2.1.4 "and Figure 5);
— an interlocked guard (see !5.2.2.1.5").
!deleted text"
5.2.2.1.2 Pressure sensitive edge !or pressure sensitive bar"

If a pressure sensitive edge !or bar" is used as a safeguarding measure to stop the hazardous

movement, the following requirements apply:
— the pressure sensitive edge !or bar" shall comply with EN ISO 13856-2, and

— it shall be attached to the upper rim of the hopper or to a provided supporting system, and

— the stopping time after activation of the pressure sensitive edge !or bar" shall be less than or

equal to 0,35 s (calculated by taking into account EN ISO 13855:2010), and
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SIST EN 12042:2014+A1:2021
EN 12042:2014+A1:2020 (E)

— the distance between the pressure sensitive !bar" and the edge of the hopper shall be less than

or equal to 8 mm, and

— !the vertical distance (d) between the floor and the upper edge of the hopper shall be more than

or equal to 1 600 mm, and"

— the vertical distance (D) between the upper edge of the hopper and the cutting/crushing zone shall

be more than or equal to 550 mm, and

— a distance bar shall be provided when the vertical distance (D) is less than 850 mm. In that case:

— the safety distance from the distance bar to the danger zone shall be more than or equal to

E+F ≥ 850 mm, and

— the distance bar shall be placed at a maximum height (G) comprised between 0 mm and 50 mm

from the edge of the hopper, and with a minimum horizontal distance (F) from the edge of the

hopper of 200 mm.

!If the distance between the upper rim of the hopper and the floor is > 1 600 mm, a working platform

according to EN ISO 14122-2:2016 shall be provided. The platform shall be located below the upper rim

of the hopper and the vertical distance between the upper rim of the hopper and the standing area of

the platform shall be ≥ 1 100 mm. If the vertical distance between the upper rim of the hopper and the

standing area of the platform is < 1 600 mm, the platform shall be interlocked.
The interlocking shall be realized, e.g. by:
— use of a pressure sensitive mat or floor according to EN ISO 13856-1, or
— use of an AOPD to prevent access to the working platform, or
— use of an interlocked guard.

If the vertical distance between the floor and the upper edge of the hopper is < 1 600 mm, all distances

shall comply with EN ISO 13857:2008, Table 2."
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SIST EN 12042:2014+A1:2021
EN 12042:2014+A1:2020 (E)
With
d ≥ 1 600 mm
D ≥ 550 mm
E+F ≥ 850 mm
F ≥ 200 mm
G ≤ 50 mm
Key
1 pressure-sensitive edge
2 danger zone
3 distance bar
d vertical distance between the upper point and the floor

D vertical distance between the upper edge of the hopper and the cutting/crushing zone

E minimum distance from the edge of the hopper to the danger zone
F minimum horizontal distance
G maximum height between the edge of the hopper and the distance bar
Figure 4 — Example of a hopper equipped with a pressure-sensitive edge"
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SIST EN 12042:2014+A1:2021
EN 12042:2014+A1:2020 (E)
5.2.2.1.3 AOPD

!If an electro-sensitive protective equipment (ESPE) as defined in EN ISO 13855:2010, 3.1.4,

employing active optoelectronic protective devices (AOPD as defined in EN ISO 12100:2010, 3.28.6,

laser scanner (AOPDDR) and vision-based protective devices (VBPD) included), is used the following

requirements apply:

a) If a protective device which detects an area (for instance light curtain, multi-beam device, laser

scanner) and/or a volume (for instance vision-based protective device), is used:

1) the distance between the AOPD/AOPDDR and the edge of the hopper shall be less than 20 mm,

and

2) the whole upper opening of the hopper shall be detected by the protective device, and

3) the distance between the beams shall be ≤ 70 mm, and

4) the minimum distance S between the safeguard and any hazard zone shall be calculated,

according to the overall system stopping performance, as defined in EN ISO 13855:2010.

NOTE The distance between the beams means the detection capability of the AOPD, see EN ISO 13855:2010,

6.2.3.
b) If a one beam light barrier is used around the upper edge of the hopper:
1) the stopping time shall be less than 0,35 s, and

2) the distance between the one-beam light barrier and the edge of the hopper shall be less than

or equal to 8 mm, and

3) the height of the protective structure and the position of danger zone shall comply with

EN ISO 13857:2008, Table 2, and
4) a distance bar shall be provided when the vertical d
...

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