SIST EN 12355:2022
(Main)Food processing machinery - Derinding-, skinning- and membrane removal machines - Safety and hygiene requirements
Food processing machinery - Derinding-, skinning- and membrane removal machines - Safety and hygiene requirements
This document deals with all significant hazards, hazardous situations and events relevant to derinding , skinning- and membrane removal machines, when they are used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer (see Clause 4).
This document deals with the hazards which can arise during commissioning, operation, cleaning, use, maintenance and decommissioning of the machine.
The machines described in this standard are used for derinding-, skinning- and membrane removal of meat and fish by cutting at a straight blade and/or cutting with circular blades. Feeding could be done manually or automatically.
Using open derinding-, skinning- and membrane removal machines, the product is guided by hand towards the cutting device.
With automatic derinding-, skinning and membrane removal machines the product is transported by an infeed conveyor against the cutting device. Product with a weight > 25 kg has to be processed by an automatic machine.
Derinding-, skinning-, and membrane removal machines for domestic purposes, hand-guided machines and table-top machines are not covered by this standard.
This document only applies to machines which are manufactured after the date of issue of this document.
This document covers the following types of machines:
a) open derinding machines (see Figure 1 and Figure 2) with infeed table and a distance h between the standing position and the surface of the infeed table from 800 mm to 1 050 mm. The cutting thickness shall be t ≤ 5 mm;
b) open skinning- and membrane removal machines (see Figure 1 and Figure 3) with infeed table and a distance h between the standing position and the surface of the infeed table from 800 mm to 1 050 mm. The cutting thickness shall be t ≤ 0,5 mm.
Key
1 tooth/transport roller 6 foot switch
2 cutting device 7 drive
3 outfeed table 8 sliding plate
4 infeed table h table height
5 ON-/OFF-switch
Figure 1 - Open derinding-, skinning- and membrane removal machine
Key
1 product 6 removed product (rind, skin, membrane)
2 infeed table 7 stripper comb
3 blade holder 8 transport roller
4 tooth roller 9 stripper roller
5 straight blade t cutting thickness
Figure 2 - System of an open derinding machine
Key
1 product 6 removed product (rind, skin, membrane)
2 infeed table 7 stripper comb
3 blade holder 8 transport roller
4 tooth roller 9 stripper roller
5 straight blade t cutting thickness
Figure 3 - System of an open membrane removal machine
c) Automatic machines (see Figure 4 and Figure 5), which are charged by an operator, with a distance between the standing position and the surface of the infeed conveyor between 800 mm and 1 050 mm.
Automatic machines which are charged automatically and are integrated in dismantling lines do not have to follow the requirements on the height of the surface of the infeed conveyor (800 mm to 1 050 mm) because the ergonomic matters need not be considered.
Automatic machines could be equipped with different rolls (see Figure 6).
Key
1 outfeed conveyor 5 tooth / transport roller
2 tunnel shaped guard 6 infeed conveyor
3 hold-down roller, blade roller, combined roller 7 drive
4 cutting device 8 sliding plate
Figure 4 - Automatic machine
Key
1 hold-down roller, blade roller, combined roller 5 stripper comb / roller
2 infeed conveyor 6 cutting device
3 product 7 outfeed conveyor
4 tooth / transport roller 8 hold-down roller, blade roller, combined roller (optional)
Figure 5 - System of an automatic machine
a) hold-down rolls (divided)
b) hold-down rolls (undivided)
c) blade roller (divided) d) combined roller (divided)
Figure 6 - Examples of rolls
d) Combining machines are designed to be used as automatic or open machines.
Derinding-, skinning- and membrane removal machines consist mainly of a machine frame, tooth roller with stripper comb, hold-down roller with stripper rake, transport roller with stripper roller, cutting
Nahrungsmittelmaschinen - Entschwartungs-, Enthäutungs- und Entvliesmaschinen - Sicherheits- und Hygieneanforderungen
Dieses Dokument behandelt alle signifikanten Gefährdungen, Gefährdungssituationen und Gefährdungsereignisse, die auf Entschwartungs-, Enthäutungs- und Entvliesmaschinen zutreffen, wenn sie bestimmungsgemäß und unter Bedingungen von durch den Hersteller vernünftigerweise vorhersehbaren Fehlanwendungen verwendet werden (siehe Abschnitt 4).
Dieses Dokument behandelt die Gefährdungen, die während Inbetriebnahme, Betrieb, Reinigung, Nutzung, Wartung und Außerbetriebnahme der Maschine auftreten können.
Die von dieser Norm erfassten Maschinen werden für das Entschwarten, Enthäuten und Entvliesen von Fleisch und Fisch durch Trennen mit geraden und/oder kreisförmigen Messereinrichtungen verwendet. Die Zuführung kann manuell oder automatisch erfolgen.
Bei offenen Entschwartungs-, Enthäutungs-und Entvliesmaschinen wird das Produkt von Hand der Schneideinrichtung zugeführt.
Bei automatischen Entschwartungs-, Enthäutungs- und Entvliesmaschinen wird das Produkt über ein Zuführungsband der Schneideinrichtung zugeführt. Produkte mit einem Gewicht von > 25 kg müssen von einer automatischen Maschine verarbeitet werden.
Entschwartungs-, Enthäutungs- und Entvliesmaschinen für den Hausgebrauch sowie handgeführte und Tischmaschinen werden von dieser Norm nicht abgedeckt.
Dieses Dokument gilt nur für Maschinen, die nach dem Ausgabedatum dieses Dokuments hergestellt werden.
Dieses Dokument umfasst folgende Bauarten von Maschinen:
a) offene Entschwartungsmaschinen (siehe Bild 1 und Bild 2) mit Zuführtisch und einem Abstand h zwischen der Standposition und der Oberfläche des Zuführtischs zwischen 800 mm und 1 050 mm. Die Schneiddicke t muss ≤ 5 mm betragen;
b) offene Enthäutungs- und Entvliesmaschinen (siehe Bild 1 und Bild 3) mit Zuführtisch und einem Abstand h zwischen der Standposition und der Oberfläche des Zuführtischs zwischen 800 mm und 1 050 mm. Die Schneiddicke t muss ≤ 0,5 mm betragen.
Bild 1 - Offene Entschwartungs-, Enthäutungs- und Entvliesmaschine
Bild 2 - System einer offenen Entschwartungsmaschine
Bild 3 - System einer offenen Entvliesmaschine
c) Automatische Maschinen (siehe Bild 4 und Bild 5), die von einem Bediener beschickt werden, mit einem Abstand zwischen der Standposition und der Oberfläche des Zuführungsbands zwischen 800 mm und 1 050 mm.
Automatische Maschinen, die automatisch beschickt werden und in Zerlegestraßen integriert sind, müssen die Anforderungen an die Höhe der Oberfläche des Zuführungsbands (800 mm bis 1 050 mm) nicht erfüllen, weil ergonomische Aspekte nicht berücksichtigt werden müssen.
Automatische Maschinen könnten mit verschiedenen Walzen ausgestattet werden (siehe Bild 6).
Bild 4 - Automatische Maschine
Bild 5 - System einer automatischen Maschine
Bild 6 - Beispiele für Walzen
d) Kombinierte Maschinen sind für die Verwendung als automatische oder offene Maschinen ausgelegt.
Entschwartungs-, Enthäutungs- und Entvliesmaschinen bestehen hauptsächlich aus Maschinenständer, Zahnwalze mit Abstreiferkamm, Andrückrolle mit Abstreiferrechen, Transportwalze mit Abstreiferwalze, Schneideinrichtung und elektrischen, elektronischen oder pneumatischen Komponenten, abhängig von der Maschinenart.
Entschwartungs-, Enthäutungs- und Entvliesmaschinen können ausgerüstet sein z. B. mit
- Zuführ- und/oder Abführtisch;
- Zuführ- und/oder Abführtransportband;
- Schneideinrichtung;
- Walzen (siehe beispielsweise Bild 6);
- Abstreiferkamm/Abstreiferwalze/Abstreiferrechen.
Machines pour les produits alimentaires - Machines à découenner, éplucher et peler - Prescriptions relatives à la sécurité et à l'hygiène
Le présent document traite de tous les phénomènes dangereux, situations dangereuses et événements dangereux spécifiques aux machines à découenner, éplucher et peler, lorsqu’elles sont utilisées normalement ou dans des conditions de mauvaise utilisation raisonnablement prévisible par le fabricant (voir Article 4).
Le présent document traite des phénomènes dangereux susceptibles de se produire lors de la mise en service, du fonctionnement, du nettoyage, de l’utilisation, de la maintenance et de la mise hors service de la machine.
Les machines décrites dans la présente norme sont utilisées pour découenner, éplucher et peler de la viande et du poisson à l'aide d'une lame droite et / ou de lames circulaires. L’alimentation peut être réalisée manuellement ou automatiquement.
Pour les machines à découenner, éplucher et peler ouvertes, le produit est guidé manuellement vers le dispositif de coupe.
Pour les machines à découenner, éplucher et peler automatiques, le produit est transporté par un tapis d’amenée vers le dispositif de coupe. Les produits d’un poids > 25 kg doivent être traités par une machine automatique.
Les machines à découenner, éplucher et peler à usage domestique, les machines guidées à main et les machines de table ne sont pas couvertes par la présente norme.
Le présent document ne s’applique qu’aux machines fabriquées après la date de publication.
La présente norme couvre les types de machines suivants :
a) machine à découenner ouverte (voir Figure 1 et Figure 2) avec plateau d'amenée et une distance h entre la position debout et la surface du plateau d'amenée comprise entre 800 mm et 1 050 mm. L’épaisseur de coupe doit être t ≤ 5 mm ;
b) machine à éplucher et peler ouvertes (voir Figure 1 et Figure 3) avec plateau d'amenée et une distance h entre la position debout et la surface du plateau d'amenée comprise entre 800 mm et 1 050 mm. L’épaisseur de coupe doit être t ≤ 0,5 mm.
Figure 1 - Machines à découenner, éplucher et peler ouvertes
Figure 2 - Système d'une machine à découenner ouverte
Figure 3 - Système d'une machine à peler ouverte
c) les machines automatiques (voir Figure 4 et Figure 5), chargées par un opérateur, avec une distance entre la position debout et la surface du tapis d’amenée comprise entre 800 mm et 1 050 mm.
Les machines automatiques chargées automatiquement et intégrées dans des lignes de démontage ne sont pas soumises aux exigences relatives à la hauteur du tapis d’amenée (comprise entre 800 mm et 1 050 mm), dans la mesure où les questions d’ergonomie ne sont pas à prendre en compte.
Les machines automatiques peuvent être équipées de différents rouleaux (voir Figure 6).
Figure 4 - Machine automatique
Figure 5 - Système d'une machine automatique
Figure 6 - Exemples de rouleaux
d) les machines combinées sont conçues pour être utilisées en tant que machines automatiques ou ouvertes.
Les machines à découenner, éplucher et peler comprennent principalement un châssis, un rouleau denté avec peigne racleur, un rouleau d'appui avec un râteau racleur, un rouleau de transport avec rouleau racleur, un dispositif à lame, ainsi que des composants électriques, électroniques et / ou pneumatiques en fonction de chaque type de machine.
Les machines à découenner, éplucher et peler peuvent par exemple être équipées des éléments suivants :
- plateau d'amenée et / ou d'évacuation ;
- tapis d'amenée et / ou d'évacuation ;
- dispositif de coupe ;
- rouleaux (par exemple voir Figure 6) ;
- peigne racleur / rouleau racleur / râteau racleur.
Stroji za predelavo hrane - Stroji za odstranjevanje kože - Varnostne in higienske zahteve
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 12355:2022
01-december-2022
Nadomešča:
SIST EN 12355:2003+A1:2010
Stroji za predelavo hrane - Stroji za odstranjevanje kože - Varnostne in higienske
zahteve
Food processing machinery - Derinding-, skinning- and membrane removal machines -
Safety and hygiene requirements
Nahrungsmittelmaschinen - Entschwartungs-, Enthäutungs- und Entvliesmaschinen -
Sicherheits- und Hygieneanforderungen
Machines pour les produits alimentaires - Machines à découenner, éplucher et peler -
Prescriptions relatives à la sécurité et à l'hygiène
Ta slovenski standard je istoveten z: EN 12355:2022
ICS:
67.260 Tovarne in oprema za živilsko Plants and equipment for the
industrijo food industry
SIST EN 12355:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 12355:2022
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SIST EN 12355:2022
EN 12355
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2022
EUROPÄISCHE NORM
ICS 67.260 Supersedes EN 12355:2003+A1:2010
English Version
Food processing machinery - Derinding-, skinning- and
membrane removal machines - Safety and hygiene
requirements
Machines pour les produits alimentaires - Machines à Nahrungsmittelmaschinen - Entschwartungs-,
découenner, éplucher et peler - Prescriptions relatives Enthäutungs- und Entvliesmaschinen - Sicherheits-
à la sécurité et à l'hygiène und Hygieneanforderungen
This European Standard was approved by CEN on 13 June 2022.
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, Türkiye 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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12355:2022 E
worldwide for CEN national Members.
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SIST EN 12355:2022
EN 12355:2022 (E)
Contents Page
European foreword . 3
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Safety requirements and/or protective/risk reduction measures . 9
4.1 General . 9
4.2 Mechanical hazards . 14
4.3 Electrical hazards . 26
4.4 Electromagnetic compatibility . 28
4.5 Hazards from loss of stability . 28
4.6 Noise reduction . 28
4.7 Ergonomic requirements . 28
4.8 Hygiene and cleaning . 30
5 Verification of the safety requirements and/or protective/risk reduction measures . 32
6 Information for use . 32
6.1 General . 32
6.2 Instruction handbook . 33
6.3 Marking . 36
Annex A (normative) Noise test code for derinding, skinning and membrane removal
machines (grade 2) . 37
Annex B (normative) Design principles to ensure the cleanability of derinding, skinning
and membrane removal machines . 40
Annex C (informative) Performance level required . 46
Annex D (informative) List of significant hazards . 47
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2006/42/EC aimed to be covered . 49
Bibliography . 51
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SIST EN 12355:2022
EN 12355:2022 (E)
European foreword
This document (EN 12355:2022) 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 January 2023, and conflicting national standards shall
be withdrawn at the latest by January 2023.
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 supersedes EN 12355:2003+A1:2010.
This document has been prepared under a Standardization Request given to CEN by the European
Commission and the European Free Trade Association, and supports essential requirements of
EU Directive(s) / Regulation(s).
For relationship with EU Directive(s) / Regulation(s), see informative Annex ZA, which is an integral part
of this document.
The significant changes with respect to the previous version EN 12355:2003+A1:2010 are listed below:
— structure adapted to CEN Guide 414:2017;
— figures were improved, partly exchanged or newly inserted;
— Clause 1 Scope: simplified, the description of machine types has been integrated in Clause 4, technical
features have been transformed into requirements;
— Clause 2 Normative references: completed and updated;
— Clause 3 Terms and definitions: completed and updated;
— Clause 4 Safety requirements: safety requirements were revised;
— Clause 5 Verification: adapted to the requirements of Clause 4;
— Clause 6 Information for use: improved and supplemented with references to the relevant clauses;
— Annex A Noise test code: updated;
— Annex B Design principles to ensure the cleanability: updated;
— Annex C Performance level required: added to give a quick-view summary of PLr for each safety
function;
— Annex D List of significant hazards: contains the former Clause 4;
— Annex ZA Relationship to Directive 2006/42/EC: improved and updated.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
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SIST EN 12355:2022
EN 12355:2022 (E)
According to the CEN-CENELEC Internal Regulations, the national standards organizations 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, Türkiye and the United
Kingdom.
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SIST EN 12355:2022
EN 12355:2022 (E)
Introduction
This document is a type-C-standard as stated in EN ISO 12100:2010.
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 (regulators, accident prevention organizations, market surveillance, etc.).
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, e.g. for maintenance (small, medium and large enterprises);
— consumers (in the case of machinery intended for use by consumers).
The above-mentioned stakeholder groups have been given the possibility to participate at 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, 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.
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SIST EN 12355:2022
EN 12355:2022 (E)
1 Scope
This document deals with all significant hazards, hazardous situations or hazardous events relevant to
derinding, skinning and membrane removal machines, when they are used as intended and under
conditions of misuse which are reasonably foreseeable by the manufacturer (see Annex D).
This document deals with the hazards which can arise during all the lifetime of the machinery
(see EN ISO 12100:2010, 5.4).
This document is not applicable to derinding, skinning, and membrane removal machines for domestic
purposes, hand-guided machines and table-top machines.
This document is not applicable to fish heading and filleting machines as described in EN 15467:2014.
This document is not applicable to derinding, skinning and membrane removal machines manufactured
before the date of its publication.
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.
EN 614-1:2006+A1:2009, Safety of machinery — Ergonomic design principles — Part 1: Terminology and
general principles
EN 619:2022, Continuous handling equipment and systems — Safety requirements for equipment for
mechanical handling of unit loads
EN 1005-1:2001+A1:2008, Safety of machinery — Human physical performance — Part 1: Terms and
definitions
EN 1005-2:2003+A1:2008, Safety of machinery — Human physical performance — Part 2: Manual
handling of machinery and component parts of machinery
EN 1005-3:2002+A1:2008, Safety of machinery — Human physical performance — Part 3: Recommended
force limits for machinery operation
EN 1005-4:2005+A1:2008, Safety of machinery — Human physical performance — Part 4: Evaluation of
working postures and movements in relation to machinery
EN 1672-2:2020, Food processing machinery — Basic concepts — Part 2: Hygiene and cleanability
requirements
EN 60204-1:2018, Safety of machinery — Electrical equipment of machines — Part 1: General
requirements (IEC 60204-1:2016, modified)
1
EN 60529:1991 , Degrees of protection provided by enclosures (IP code) (IEC 60529:1989)
EN 61496-1:2013, Safety of machinery — Electro-sensitive protective equipment — Part 1: General
requirements and tests (IEC 61496-1:2012)
1
As impacted by EN 60529:1991/A1:2000 and EN 60529:1991/A2:2013.
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EN 12355:2022 (E)
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 3746:2010, Acoustics — Determination of sound power levels and sound energy levels of noise
sources using sound pressure — Survey method using an enveloping measurement surface over a reflecting
plane (ISO 3746:2010)
EN ISO 4871:2009, Acoustics — Declaration and verification of noise emission values of machinery and
equipment (ISO 4871:1996)
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 11202:2010, Acoustics — Noise emitted by machinery and equipment — Determination of emission
sound pressure levels at a workstation and at other specified positions applying approximate environmental
corrections (ISO 11202:2010)
EN ISO 11688-1:2009, Acoustics — Recommended practice for the design of low-noise machinery and
equipment — Part 1: Planning (ISO/TR 11688-1:1995)
EN ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk
reduction (ISO 12100:2010)
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 13857:2019, Safety of machinery — Safety distances to prevent hazard zones being reached by
upper and lower limbs (ISO 13857:2019)
EN ISO 14119:2013, Safety of machinery — Interlocking devices associated with guards — Principles for
design and selection (ISO 14119:2013)
EN ISO 14120:2015, Safety of machinery — Guards — General requirements for the design and
construction of fixed and movable guards (ISO 14120:2015)
EN ISO 21920-2:2022, Geometrical product specifications (GPS) — Surface texture: Profile — Part 2:
Terms, definitions and surface texture parameters (ISO 21920-2:2021)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 12100:2010 and the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at https://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp/
3.1
strip
mechanical process for stripping off skin or membrane from rotating machine parts
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3.2
stripper comb
comb-shaped insert to strip off the product residues from the tooth roller
3.3
stripper rake
rake-shaped device to strip skin or membrane or product residues off the hold-down roller
3.4
stripper roller
shaft with teeth to strip skin or membrane off the transport roller
3.5
hold-down roller
device for pushing down the product
Note 1 to entry: The roller may consist of one undivided piece or be divided into several segments. Each roller
may be profiled on the perimeter and/or the width. The inner rollers may also have smaller diameters.
3.6
cutting device
device for cutting the rind, skin or membrane from the product, consisting of blade holder and straight
blade
3.7
blade holder
device to act as a holding tool for the straight blade
Note 1 to entry: The blade holder is not intended for circular blades.
3.8
blade roller
rotating cutting tool with circular blades for the slashing or cutting of products
Note 1 to entry: One or more circular blades are spread across the width. Each circular blade may be profiled on
the perimeter. The inner circular blades may also have smaller diameters. This roller is considered divided.
3.9
combined roller
blade roller with segments of hold-down roller placed between the circular blades
3.10
round product
product of nearly round shape
EXAMPLE Pickled knuckle of pork, hind ham.
3.11
fixed bar
stable element that supports the belt in the area of the inlet and outlet and is strongly connected to the
belt frame
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3.12
tunnel-shaped cover
element covering the area between inlet and outlet
3.13
transport roller
component with exclusively longitudinal teeth for moving the product towards the knife
3.14
tooth roller
component with longitudinal teeth as well as stripper grooves for moving the product towards the knife
3.15
cutting thickness
distance between the rotating tooth / transport roller and the tip of the straight blade
3.16
easily cleanable
designed and constructed to be cleanable by a simple cleaning method, if necessary after removing parts
that can be easily dismantled
3.17
stripper grooves
circumferential grooves in the roller for guiding the stripper comb
4 Safety requirements and/or protective/risk reduction measures
4.1 General
Derinding, skinning and membrane removal machines (see Figure 1, Figure 2, Figure 3, Figure 4 and
Figure 5) shall comply with the safety requirements and/or protective/risk reduction measures of this
clause. In addition, the machine shall be designed according to the principles of EN ISO 12100:2010 for
the hazards relevant but not significant, which are not dealt with by this document.
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EN 12355:2022 (E)
Key
1 tooth/transport roller 6 foot switch
2 cutting device 7 drive
3 outfeed table 8 sliding plate
4 infeed table h table height
5 ON-/OFF-switch
Figure 1 — Open derinding, skinning and membrane removal machine
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EN 12355:2022 (E)
a) open derinding machine b) open membrane removal machine
Key
1 product 6 removed product (rind, skin, membrane)
2 infeed table 7 stripper comb
3 blade holder 8 transport roller
4 tooth roller 9 stripper roller
5 straight blade t cutting thickness
Figure 2 — System of open machines
Key
1 outfeed conveyor 5 tooth / transport roller
2 tunnel-shaped cover 6 infeed conveyor
3 hold-down roller, blade roller, combined roller 7 drive
4 cutting device 8 sliding plate
Figure 3 — Automatic machine
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Key
1 hold-down roller, blade roller, combined roller 5 stripper comb / roller
2 infeed conveyor 6 cutting device
3 product 7 outfeed conveyor
4 tooth / transport roller 8 hold-down roller, blade roller, combined roller (optional)
Figure 4 — System of an automatic machine
a) hold-down roller (divided)
b) hold-down roller (undivided)
c) blade roller (divided) d) combined roller (divided)
Figure 5 — Examples of rollers
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On derinding, skinning and membrane removal machines, a normal stop device shall be provided on each
workstation to stop the machine. The normal stop device requires a performance level PL of at least “c”
r
in accordance with EN ISO 13849-1:2015. The stopping function of the normal stop device shall be in
accordance with EN 60204-1:2018, 9.2.2, Category 0. In the instruction handbook the manufacturer shall
indicate that the normal stop device shall be operated immediately after each use of open derinding,
skinning and membrane removal machines (see 6.2 d)).
When power is recovered or when the power supply is switched on, restarting of the machine shall be
prevented.
Figure 6 is showing the significant danger zones of the different machine types.
a) Derinding machine b) Skinning and membrane removal machine
c) Automatic machines
Key
1 zone 1
2 zone 2
3 zone 3
4 zone 4
5 zone 5
Figure 6 — Danger zones on machines
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4.2 Mechanical hazards
4.2.1 General
Machines shall be designed and constructed in accordance with the requirements mentioned below.
The interlocking devices associated with guards shall at least comply with EN ISO 14119:2013 Type 1 or
Type 3 and shall not be positioned in the food area (e.g. inside the machine housing or another housing).
Machine safety functions are implemented and assured through Safety-Related Parts of the Control
System (SRP/CS) that shall achieve a required Performance Level (PL) in accordance with
r
EN ISO 13849-1:2015. This requirement is given for each safety function in the relevant subclauses of
Clause 4.
Table C.1 summarizes PL for each safety function; however, the provisions of Clause 4 remain the sole
r
and complete normative set of requirements and explanations.
The access to the danger points on the drive system shall be prevented by the following measures:
— at the drive system guards (e.g. doors) shall be provided according to EN ISO 14120:2015. The
guards shall be:
— fixed or;
— movable and interlocked, the required performance level PL of the safety-related parts of the
r
control system shall present at least a performance level “c” according to EN ISO 13849-1:2015;
— openings in the guard shall comply with EN ISO 13857:2019, Table 4.
Fixing systems of fixed guards shall remain attached to these guards or to the machine when the guards
are removed.
4.2.2 Open derinding machine
4.2.2.1 General
When operating an open machine, the operator shall wear protective gloves. Metal wire mesh gloves, or
metal wire reinforced gloves or synthetic fibre reinforced gloves shall not be worn. In the instruction
handbook the manufacturer shall indicate the use of protective gloves (see 6.2 d)).
4.2.2.2 Rotating tooth roller and straight blade — Zone 1
The access to the cutting area and gap between the rotating tooth roller and the cutting device shall be
prevented. This shall be achieved by the following measures:
The cutting thickness of the straight blade shall be t ≤ 5 mm (see Figure 7).
The pitch of the tooth shall be P ≤ 6,5 mm and the depth d ≤ 5 mm (see Figure 7).
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Key
1 tooth roller
2 straight blade
3 stripper groove
p tooth pitch
d tooth depth
t cutting thickness
Figure 7 — Dimensions of the tooth roller
The straight blade and the blade holder shall be designed in such a way that the straight blade can only
be placed in a defined position (see Figure 8).
Figure 8 — Design examples for defined position of the straight blade
The free part of the tooth roller between knife and front edge of the table is not allowed to be more than
35° of the circumference of the roller for a table height between 800 mm and 1 050 mm. In the case of
exceptionally tall round products an infeed table can be used which permits a free part of the tooth roller
not more than 120° for a table height ≥ 800 mm (see Figure 9). The processing of exceptionally tall round
products shall be indicated in the instruction handbook (see 6.2 d)).
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Key
1 tooth roller
2 straight blade
3 product
4 infeed table raised
5 infeed table lowered
Figure 9 — Free part of the tooth roller
The operation switch for the drive system of the tooth roller shall be a hold-to-run control. The tooth
roller shall stop within 2 s after the operator has released the operation switch. The required
performance level PL of the safety-related parts of the control system shall present at least a
r
performance level “c” according to EN ISO 13849-1:2015. The operation switch can be e.g. foot-, knee- or
belly-operated and shall be protected against unintentional actuation.
If the blade holder is equipped with a second blade, at least the following residual hazards shall be
indicated in the instruction handbook (see 6.2 d)):
— cutting at the second blade;
— drawing-in point between installed second blade and toothed roller.
The instruction handbook (see 6.2 d)) shall indicate that the operator must switch off the machine with
the OFF-button and remove the second blade when quitting the machine.
4.2.2.3 Rotating tooth roller and stripper comb — Zone 2
The access to the in-running nip between tooth roller and stripper comb shall be prevented. This shall be
achieved by the following measures:
— the angle between tooth roller and stripper comb shall be > 90° (see Figure 10 a));
— an interlocked stripper comb to prevent the operation of the machine without the stripper comb, the
required performance level PLr of the safety-related parts of the control system shall be at least a
performance level “c” according to EN ISO 13849-1:2015.
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a) without protective bar b) with protective bar
Key
1 tooth roller
2 stripper comb
3 fixed machine part
4 protective bar
d distance without protective bar
e distance with protective bar
Figure 10 — tooth roller with stripper comb
4.2.2.4 Rotating tooth roller and fixed machine parts — Zone 3
Access to the in-running nip between rotating tooth roller and fixed machine parts shall be prevented.
This shall be achieved by the following measures:
— the distance between a rotating tooth roller and a fixed machine part shall be d ≥ 80 mm
(see Figure 10 a)), or
— the distance shall be guarded by a protective bar, where the distance between protective bar and
tooth roller shall be e ≤ 2 mm (see Figure 10 b)); when the protective bar is not fixed, it shall be
interlocked with the machine to prevent the operation of the machine without the protective bar; the
required performance level PL of the safety-related parts of the control system shall present at least
r
a performance level “c” according to EN ISO 13849-1:2015.
4.2.3 Open skinning and membrane removal machine
4.2.3.1 General
Open skinning and membrane removal machines are intended to remove skin or membrane from flat and
round products, this shall be indicated in the instruction handbook (see 6.2 d)).
When operating an open machine, the operator shall wear protective gloves. Metal wire mesh gloves, or
metal wire reinforced gloves or synthetic fibre reinforced gloves shall not be worn. In the instruction
handbook the manufacturer shall indicate the use of protective gloves (see 6.2 d)).
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4.2.3.2 Rotating transport roller and straight blade — Zone 1
Access to the cutting edge and the pinch point between the rotating transport roller and the straight blade
shall be prevented. This will be achieved by the following measures:
The cutting thickness shall be t ≤ 0,5 mm (see Figure 11).
The pitch of the grooves shall be P ≤ 2,5 mm and the groove depth d ≤ 2,0 mm. The transport roller shall
not have circumferential grooves (see Figure 11).
Key
1 transport roller
2 roller with circumferential grooves (not allowed as transport roller)
3 divided transport roller
p groove pitch
d groove depth
t cutting thickness
Figure 11 — Dimensions on the transport roller
For rem
...
SLOVENSKI STANDARD
oSIST prEN 12355:2020
01-januar-2020
Stroji za predelavo hrane - Stroji za odstranjevanje kože - Varnostne in higienske
zahteve
Food processing machinery - Derinding-, skinning- and membrane removal machines -
Safety and hygiene requirements
Nahrungsmittelmaschinen - Entschwartungs-, Enthäutungs- und Entvliesmaschinen -
Sicherheits- und Hygieneanforderungen
Machines pour les produits alimentaires - Machines à découenner, éplucher et peler -
Prescriptions relatives à la sécurité et à l'hygiène
Ta slovenski standard je istoveten z: prEN 12355
ICS:
67.260 Tovarne in oprema za Plants and equipment for the
živilsko industrijo food industry
oSIST prEN 12355:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 12355:2020
DRAFT
EUROPEAN STANDARD
prEN 12355
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2019
ICS 67.260 Will supersede EN 12355:2003+A1:2010
English Version
Food processing machinery - Derinding-, skinning- and
membrane removal machines - Safety and hygiene
requirements
Machines pour les produits alimentaires - Machines à Nahrungsmittelmaschinen - Entschwartungs-,
découenner, éplucher et peler - Prescriptions relatives Enthäutungs- und Entvliesmaschinen - Sicherheits-
à la sécurité et à l'hygiène und Hygieneanforderungen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 153.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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.
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.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 12355:2019 E
worldwide for CEN national Members.
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Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 10
3 Terms and definitions . 12
4 List of hazards . 13
5 Safety requirements and/or measures . 15
5.1 General . 15
5.2 Mechanical hazards . 16
5.2.1 General . 16
5.2.2 Open derinding machine . 16
5.2.3 Open skinning and membrane removal machine . 23
5.2.4 Automatic machines . 24
5.2.5 Combining machine . 32
5.3 Electrical hazards . 32
5.3.1 General . 32
5.3.2 Stopping function of switching devices . 32
5.3.3 Emergency stop-device . 32
5.3.4 Protection against water ingress . 32
5.3.5 ON- and OFF-switch . 34
5.3.6 Electromagnetic compatibility . 34
5.3.7 Wheel-mounted machines . 34
5.4 Hazards from loss of stability . 34
5.5 Noise reduction . 35
5.6 Ergonomic requirements . 35
5.7 Hygiene and cleaning . 36
5.7.1 General . 36
5.7.2 Food area . 37
5.7.3 Splash area. 38
5.7.4 Non-food area . 38
5.7.5 Surface Conditions . 38
5.7.6 Cleaning . 38
6 Verification of safety and hygiene requirements and/or measures . 39
7 Information for the user . 40
7.1 General . 40
7.2 Instruction handbook . 40
7.3 Marking . 43
Annex A (normative) Noise test code for derinding-, skinning- and membrane removal
machines (grade 2) . 44
A.1 Emission sound pressure level determination . 44
A.2 Sound power level determination . 44
A.3 Installation and mounting conditions . 44
A.4 Operating conditions . 44
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A.5 Measurement . 44
A.6 Information to be recorded . 44
A.7 Information to be reported . 45
A.8 Declaration and verification of the noise emission values . 45
Annex B (normative) Design principles to ensure the cleanability of derinding-, skinning-
and membrane removal machines . 46
B.1 Materials of construction . 46
B.1.1 Type of materials . 46
B.1.1.1 Materials for food area . 46
B.1.1.2 Materials for splash area . 46
B.1.1.3 Non food area . 46
B.2 Design . 46
B.2.1 General . 46
B.2.2 Food area . 46
B.2.2.1 Surfaces . 46
B.2.2.2 Inside corners . 46
B.2.2.3 Grooves . 48
B.2.2.4 Permanent joints . 48
B.2.2.5 Surface roughness . 48
B.2.3 Splash area . 48
B.2.3.1 Surface . 48
B.2.3.2 Inside corners . 48
B.2.3.3 Grooves . 48
B.2.3.4 Openings . 49
B.2.3.5 Permanent joints . 49
B.2.3.6 Fastening methods . 49
B.2.4 Non-food area . 50
B.2.5 Floor-type machines . 51
B.2.5.1 Wheel-mounted machines . 51
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2006/42/EC aimed to be covered . 52
Bibliography . 54
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European foreword
This document (prEN 12355:2019) 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 document is currently submitted to the CEN Enquiry.
This document will supersede EN 12355:2003+A1:2010.
This document has been prepared under a standardization request 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.
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Introduction
This document is a type-C-standard as stated in EN ISO 12100:2010.
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 (regulators, accident prevention organizations, market surveillance etc.).
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, e.g. for maintenance (small, medium and large enterprises);
— consumers (in the case of machinery intended for use by consumers).
The above-mentioned stakeholder groups have been given the possibility to participate at 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, 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.
5
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1 Scope
This document deals with all significant hazards, hazardous situations and events relevant to derinding-
, skinning- and membrane removal machines, when they are used as intended and under conditions of
misuse which are reasonably foreseeable by the manufacturer (see Clause 4).
This document deals with the hazards which can arise during commissioning, operation, cleaning, use,
maintenance and decommissioning of the machine.
The machines described in this standard are used for derinding-, skinning- and membrane removal of
meat and fish by cutting at a straight blade and/or cutting with circular blades. Feeding could be done
manually or automatically.
Using open derinding-, skinning- and membrane removal machines, the product is guided by hand
towards the cutting device.
With automatic derinding-, skinning and membrane removal machines the product is transported by an
infeed conveyor against the cutting device. Product with a weight > 25 kg has to be processed by an
automatic machine.
Derinding-, skinning-, and membrane removal machines for domestic purposes, hand-guided machines
and table-top machines are not covered by this standard.
This document only applies to machines which are manufactured after the date of issue of this
document.
This document covers the following types of machines:
a) open derinding machines (see Figure 1 and Figure 2) with infeed table and a distance h between
the standing position and the surface of the infeed table from 800 mm to 1 050 mm. The cutting
thickness shall be t ≤ 5 mm;
b) open skinning- and membrane removal machines (see Figure 1 and Figure 3) with infeed table and
a distance h between the standing position and the surface of the infeed table from 800 mm to
1 050 mm. The cutting thickness shall be t ≤ 0,5 mm.
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Key
1 tooth/transport roller 6 foot switch
2 cutting device 7 drive
3 outfeed table 8 sliding plate
4 infeed table h table height
5 ON-/OFF-switch
Figure 1 — Open derinding-, skinning- and membrane removal machine
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Key
1 product 6 removed product (rind, skin, membrane)
2 infeed table 7 stripper comb
3 blade holder 8 transport roller
4 tooth roller 9 stripper roller
5 straight blade t cutting thickness
Figure 2 — System of an open derinding machine
Key
1 product 6 removed product (rind, skin, membrane)
2 infeed table 7 stripper comb
3 blade holder 8 transport roller
4 tooth roller 9 stripper roller
5 straight blade t cutting thickness
Figure 3 — System of an open membrane removal machine
c) Automatic machines (see Figure 4 and Figure 5), which are charged by an operator, with a distance
between the standing position and the surface of the infeed conveyor between 800 mm and
1 050 mm.
Automatic machines which are charged automatically and are integrated in dismantling lines do not
have to follow the requirements on the height of the surface of the infeed conveyor (800 mm to
1 050 mm) because the ergonomic matters need not be considered.
Automatic machines could be equipped with different rolls (see Figure 6).
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Key
1 outfeed conveyor 5 tooth / transport roller
2 tunnel shaped guard 6 infeed conveyor
3 hold-down roller, blade roller, combined roller 7 drive
4 cutting device 8 sliding plate
Figure 4 — Automatic machine
Key
1 hold-down roller, blade roller, combined roller 5 stripper comb / roller
2 infeed conveyor 6 cutting device
3 product 7 outfeed conveyor
4 tooth / transport roller 8 hold-down roller, blade roller, combined roller (optional)
Figure 5 — System of an automatic machine
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a) hold-down rolls (divided)
b) hold-down rolls (undivided)
c) blade roller (divided) d) combined roller (divided)
Figure 6 — Examples of rolls
d) Combining machines are designed to be used as automatic or open machines.
Derinding-, skinning- and membrane removal machines consist mainly of a machine frame, tooth roller
with stripper comb, hold-down roller with stripper rake, transport roller with stripper roller, cutting
device and electrical, electronic, or pneumatic components, depending on the machine type.
Derinding-, skinning- and membrane removal machines can e.g. be equipped with a:
— infeed and / or outfeed table;
— infeed and / or outfeed conveyor;
— cutting device;
— rolls (e.g. see Figure 6);
— stripper comb/stripper roller/stripper rake.
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.
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EN 614-1:2006+A1:2009, Safety of machinery — Ergonomic design principles — Part 1: Terminology and
general principles
EN 1005-1:2001+A1:2008, Safety of machinery — Human physical performance — Part 1: Terms and
definitions
EN 1005-2:2003+A1:2008, Safety of machinery — Human physical performance — Part 2: Manual
handling of machinery and component parts of machinery
EN 1005-3:2002+A1:2008, Safety of machinery — Human physical performance — Part 3: Recommended
force limits for machinery operation
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, modified)
EN 60529:1991, Degrees of protection provided by enclosures (IP code) (IEC 60529:1989)
EN 61496-1:2013, Safety of machinery — Electro-sensitive protective equipment — Part 1: General
requirements and tests (IEC 61496-1:2012)
EN ISO 3744:2010, Acoustics — Determination of sound power levels of noise sources using sound
pressure — Engineering method for an essentially free field over a reflecting plane (ISO 3744:2010)
EN ISO 4287:1998, Geometrical product specifications (GPS) — Surface texture: Profile method — Terms,
definitions and surface texture parameters (ISO 4287:1997)
EN ISO 4871:2009, Acoustics — Declaration and verification of noise emission values of machinery and
equipment – (ISO 4871:1996)
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 11688-1:2009, Acoustics — Recommended practice for the design of low-noise machinery and
equipment — Part 1: Planning (ISO/TR 11688-1:1995)
EN ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk
reduction (ISO 12100:2010)
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 13857:2008, Safety of machinery — Safety distances to prevent hazard zones being reached by
upper and lower limbs (ISO 13857:2008)
EN ISO 14119:2013, Safety of machinery — Interlocking devices associated with guards — Principles for
design and selection (ISO 14119:2013)
EN ISO 14120:2015, Safety of machinery — Guards — General requirements for the design and
construction of fixed and movable guards (ISO 14120:2015)
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3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 12100:2010 and the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1
strip
mechanical process for stripping off skin or membrane from rotating machine parts
3.2
stripper comb
comb-shaped insert to strip off the debris from the tooth roller
3.3
stripper rake
rake-shaped device to strip skin or membrane off the hold-down rolls
3.4
stripper roller
shaft with teeth to strip skin or membrane off the transport roller
3.5
hold-down roller
device for pushing down the product
Note 1 to entry: The roller may consist of one undivided piece or be divided into several segments. Each roller
may be profiled on the perimeter and/or the width. The inner rolls may also have smaller diameters.
3.6
cutting device
device for cutting the rind, skin or membrane from the product, consisting of blade holder and straight
blade
3.7
blade holder
device to act as a holding tool for the straight blade
Note 1 to entry: The blade holder is not intended for circular blades.
3.8
blade roller
rotating cutting tool with circular blades for the slashing or cutting of products
Note 1 to entry: One or more circular blades are spread across the width. Each circular blade may be profiled on
the perimeter. The inner circular blades may also have smaller diameters. This roller is considered divided.
3.9
combined roller
blade roller with segments of hold-down rolls placed between the circular blades
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3.10
round product
product of nearly round shape
Note 1 to entry: E.g. pickled knuckle of pork, hind ham.
3.11
hold-to-run control device
switch which needs a continuous actuation for operation
3.12
cover guard
fixed or movable guard over the infeed, outfeed and rolls
3.13
transport roller
shaft with teeth without stripper grooves
3.14
tooth roller
shaft with teeth and stripper grooves
3.15
cutting thickness
distance between the rotating tooth / transport roller and the tip of the straight blade
3.16
easily cleanable
designed and constructed to be cleanable by a simple cleaning methode, if necessary after removing
parts that can be easily dismantled
4 List of hazards
This clause contains all the significant hazards, hazardous situations and events, identified by a risk
assessment significant for this type of machinery and which require measures to eliminate or reduce
the risk associated with the identified hazards (see Table 1).
Figure 7, Figure 8 and Figure 9 are showing the significant danger zones of the different machine types.
Table 1 — List of significant hazards
Clause/subclause
Location or cause Hazards, hazardous situations and hazardous events in this European
Standard
General Hazards 5.1
Failure/disorder of the control system and control
General 5.2.1
circuits
Open derinding
Cutting; drawing in 5.2.2
machine
Open skinning and
membrane removal Cutting; drawing in 5.2.3
machine
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Clause/subclause
Location or cause Hazards, hazardous situations and hazardous events in this European
Standard
Automatic machine Cutting; drawing in 5.2.4
Combining machine Cutting; drawing in 5.2.5
Electric shock from direct or indirect contact with live
5.3
Electricity supply components; external influences on electrical equipment
7.2
(e.g. cleaning with water)
Design of machinery Hazards generated by loss of stability 5.4
Hazards generated by noise which may result in hearing,
5.5
damage, tinnitus, stress and accidents due to interference
Design of machinery 7.2
with speech communication and interference with the
Annex A
perception of acoustic signals
Hazards generated by neglecting ergonomic principles,
Design of machinery e.g. unhealthy body posture or excessive physical effort,
to facilitate its inadequate consideration of human hand/arm
...
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