Food processing machinery - Mincing machines - Safety and hygiene requirements

1.1   This European Standard specifies requirements for the design and manufacture of mincing machines (see Figures 1a and 1b) used in a stationary position.
The machines covered by this European Standard are used for size reduction of fresh or frozen meat, meat products and fish by cutting in a set of cutting tools.
Mincing machines for domestic uses are not included in this European Standard. Filling mincers are covered by EN 12463 "Food processing machinery - Filling machines and auxiliary machines - Safety and hygiene requirements".
This European Standard applies only to machines that are manufactured after the date of issue of this European Standard.
Mincing machines in connection with using a hold to run foot switch are not covered by this European Standard.
This European Standard covers:
-  mincing machines used in shops and preparation rooms;
-  mincing machines used in kitchens where sausages are prepared;
-  mincing machines used industrially;
-  accessories.
The extent to which hazards are covered, is indicated in this European Standard. For other hazards which are not covered by this European Standard, machinery should comply with EN ISO 12100 where applicable.
This European Standard is not dealing with specific requirements for the control of mincing machines with foot switch.
1.2   This European Standard covers the following types:
-  Mincing machine with tray, feed intake and pusher, diameter <= 52 mm on feed intake (see Figure 3)
-  Mincing machine with tray, feed intake, restrictor plate and pusher, diameter > 52 mm on feed intake (see Figure 4)
-  Mincing machine with feed intake hopper and cover, screw conveyor, with 1) or without mixing screw in feed intake hopper (see Figure 5)
-  Mincing machine with feed intake hopper, with or without cover, screw conveyor, with  1) or without mixing screw in feed intake hopper, with loading device (continuously or discontinuously)
Mincing machines comprise a machine base, a worm casing with a worm, a feed intake tray or hopper, a screw conveyor (and sometimes an additional mixing screw in the feed intake hopper), a set of cutting tools, a lock nut, a loading device, a drive motor and, depending on machine type, electrical, hydraulic and pneumatic components. They will also have various safeguarding devices as examples in Clause 5.
Mincing machines may be equipped e.g. with
-  an extraction claw,
-  an ejector or extractor,
-  a protective hood over the discharge outlet,
-  a cover over the inlet opening of the feed intake hopper,
-  a transport carriage for the lock nut, the set of cutting tools, the worm and the screw conveyor,
-  a lifting device for the lock nut, the set of cutting tools, the worm and the screw conveyor,
-  a loading device.
1.3   Intended use
The fresh or frozen meat, meat product or the fish is fed manually or by means of the loading device into the mincing machine. The product is fed to the worm either by means of a pusher or a screw conveyor and size reduced in the set of cutting tools.
It is not intended that mincing machines are cleaned with pressurized water. However, it is to be foreseen that it is difficult to guarantee that this method will never be used in practice. In order to deal with this eventuality, the requirements of 5.3.3.2 should apply.
This European Standard specifies all significant hazards, hazardous situations and events relevant to mincing machines, when they are used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer (see Clause 4).
This European Standard specifies the hazards which can arise during commissioning, operation, cleaning, use, maintenance and decommissioning of the machine.
--------
1) In this case, EN 13570 should be taken into consideration.

Nahrungsmittelmaschinen - Wölfe - Sicherheits- und Hygieneanforderungen

1.1   Diese Europäische Norm legt Anforderungen an die Konstruktion und Herstellung von Wölfen (siehe Bilder 1a und 1b), die stationär betrieben werden, fest.
Die von dieser Norm erfassten Maschinen werden für die Zerkleinerung von frischem oder gefrorenem Fleisch, Fleischprodukten und Fisch durch Zerschneiden in einem Schneidsatz verwendet.
Wölfe für den Hausgebrauch werden von dieser Norm nicht abgedeckt. Füllwölfe werden in EN 12463 „Nahrungsmittelmaschinen — Füllmaschinen und Vorsatzmaschinen — Sicherheits  und Hygiene¬anforde-rungen“ behandelt.
Diese Norm gilt nur für Maschinen, die nach dem Ausgabedatum dieser Norm hergestellt werden.
Wölfe mit einem Fußschalter mit selbstständiger Rückstellung werden in dieser Norm nicht behandelt.
Die Europäische Norm behandelt:
   Fleischwölfe für Läden und Vorbereitungsräume;
   Fleischwölfe in Wurstküchen;
   Fleischwölfe für den industriellen Einsatz;
   Zubehör.
In welchem Maße Gefährdungen abgedeckt sind, wird in dieser Europäischen Norm aufgeführt. In Bezug auf andere Gefährdungen, die nicht in dieser Europäischen Norm behandelt werden, müssen die Maschinen, sofern zutreffend, die Anforderungen nach EN ISO 12100 erfüllen.
Diese Europäische Norm enthält keine speziellen Anforderungen für Wölfe, die über einen Fußschalter gesteuert werden.
1.2   Diese Norm umfasst folgende Bauarten:
   Wolf mit Schale, Einfüllschacht und Stopfer, Durchmesser  52 mm am Einfüllschacht (siehe Bild 3),
   Wolf mit Schale, Einfüllschacht, Schutzplatte und Stopfer, Durchmesser  52 mm am Einfüllschacht (siehe Bilder 4a und 4b),
   Wolf mit Einfülltrog und Deckel, TransportschneckeArbeitsschnecke, mit1) oder ohne Mengwelle im Einfülltrog (siehe Bild 5),
   Wolf mit Einfülltrog, mit oder ohne Deckel, Transportschnecke, mit ) oder ohne Mengwelle im Einfülltrog, mit Beschickungseinrichtung (kontinuierlich oder diskontinuierlich).
Wölfe bestehen aus einem Maschinenständer, einem Schneckengehäuse mit Arbeitsschnecke, einer Einfüllschale oder einem Einfülltrog, einer Transportschnecke (und manchmal einer zusätzlichen Mengwelle im Einfülltrog), einem Satz Schneidwerkzeuge, einer Überwurfmutter, einer Beschickungseinrichtung, einem oder mehreren Antriebsmotoren und — abhängig von der Maschinenart — aus elektrischen, hydraulischen und pneumatischen Elementen. Sie besitzen auch verschiedene Schutzeinrichtungen, wie in Abschnitt 5 beispielhaft erläutert.

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

1.1   La présente Norme européenne spécifie les prescriptions relatives à la conception et à la fabrication des hachoirs (voir Figures 1a et 1b) utilisés en position fixe.
Les machines couvertes par la présente Norme européenne sont utilisées pour hacher de la viande fraîche ou congelée, des produits à base de viande et du poisson, la coupe étant effectuée dans un ensemble de coupe.
Les hachoirs à usage domestique ne sont pas couverts par la présente Norme européenne. Les poussoirs sont couverts par l’EN 12463 « Machines pour les produits alimentaires — Poussoirs et machines auxiliaires — Prescriptions relatives à la sécurité et à l’hygiène ».
La présente norme Européenne ne s’applique qu’aux machines fabriquées après sa date de publication.
Les hachoirs utilisant un interrupteur à pied à action maintenue ne sont pas couverts par la présente norme Européenne.
La présente Norme européenne couvre :
   les hachoirs utilisés dans les magasins et les laboratoires ;
   les hachoirs utilisés dans les cuisines pour la préparation des saucissons ;
   les hachoirs industriels ;
   les accessoires.
L'étendue des phénomènes dangereux couverts est indiquée dans la présente Norme européenne. Pour les autres phénomènes dangereux qui ne sont pas couverts par la présente Norme européenne, il convient que les machines soient être conformes à l'EN ISO 12100 lorsqu'elle s'applique.
La présente Norme européenne ne traite pas des prescriptions spécifiques pour le contrôle des hachoirs utilisant un interrupteur à pied.
1.2   La présente Norme européenne couvre les types de machines suivants :
   hachoir avec plateau, goulotte d'alimentation et poussoir, diamètre de la goulotte d'alimentation  52 mm (voir Figure 3) ;
   hachoir avec plateau, goulotte d'alimentation, plaque protectrice et poussoir, diamètre de la goulotte d'alimentation > 52 mm (voir Figure 4) ;
   hachoir avec trémie d'alimentation et couvercle, hélice transporteuse, avec ) ou sans vis mélangeuse dans la trémie d'alimentation (voir Figure 5) ;
   hachoir avec trémie d'alimentation, avec ou sans couvercle, hélice transporteuse, avec1) ou sans vis mélangeuse dans la trémie d'alimentation, avec dispositif de chargement (en continu ou en discontinu).
Les hachoirs comprennent un socle, un corps avec vis d'acheminement, un plateau ou une trémie d'alimentation, une hélice transporteuse (et quelques fois une vis mélangeuse additionnelle dans la trémie d’alimentation), un ensemble de coupe, un écrou de corps, un dispositif de chargement, un système d'entraînement et, suivant le type de machine, des éléments électriques, hydrauliques et pneumatiques. Ils comprennent également plusieurs dispositifs de sécurité donnés en exemple à l’article 5.

Stroji za predelavo hrane - Stroji za mletje mesa - Varnostne in higienske zahteve

1.1 Ta evropski standard določa zahteve za načrtovanje in izdelavo strojev za mletje mesa (glej sliki 1a in 1b), ki se uporabljajo na stalnem mestu.
Stroji, ki jih zajema ta evropski standard, se uporabljajo za zmanjšanje velikosti svežega ali zmrznjenega mesa, mesnih izdelkov in rib z rezanjem z garnituro rezalnega orodja.
Ta evropski standard ne vključuje strojev za mletje mesa za domačo uporabo. Polnilne stroje za mletje mesa zajema EN 12463 »Stroji za predelavo hrane – Polnilniki in pomožni stroji – Varnostne in higienske zahteve«.
Ta evropski standard velja samo za stroje, ki so bili izdelani po datumu objave tega evropskega standarda.
Ta evropski standard ne zajema strojev za mletje mesa v povezavi z uporabo pridržitvenega nožnega stikala.
Ta evropski standard zajema:
– stroje za mletje mesa, ki se uporabljajo v trgovinah in pripravljalnicah;
– stroje za mletje mesa, ki se uporabljajo v kuhinjah za pripravo klobas in salam;
– stroje za mletje mesa za industrijsko uporabo;
– pomožne pripomočke.
Ta evropski standard določa obseg kritja nevarnosti. Kar zadeva druge nevarnosti, ki jih ta evropski standard ne zajema, naj bi bili stroji v skladu s standardom EN ISO 12100, kjer je to primerno.
Ta evropski standard ne obravnava posebnih zahtev za krmiljenje strojev za mletje mesa z nožnim stikalom.
1.2 Ta evropski standard zajema naslednje vrste:
– stroj za mletje mesa s pladnjem, polnilno odprtino in potisnim nastavkom (premer polnilne odprtine <= 52 mm (glej sliko 3));
– stroj za mletje mesa s pladnjem, polnilno odprtino, omejevalno ploščo in potisnim nastavkom (premer polnilne odprtine > 52 mm (glej sliko 4));
– stroj za mletje mesa s polnilnim lijakom in pokrovom, polžnim transporterjem, z 1) mešalnim polžem v polnilnem lijaku ali brez njega (glej sliko 5);
– stroj za mletje mesa s polnilnim lijakom, s pokrovom ali brez njega, s polžnim transporterjem, z 1) mešalnim polžem v polnilnem lijaku ali brez njega, z nalagalnikom (zvezno ali nezvezno nalaganje).
Stroji za mletje mesa so sestavljeni iz podstavka stroja, ohišja polža s polžem, polnilnega pladnja ali lijaka, polžnega transporterja (včasih je vključen dodatni mešalni polž v polnilnem lijaku), garniture rezalnega orodja, blokirne matice, nalagalnika, pogonskega motorja ter (odvisno od vrste stroja) električnih, hidravličnih in pnevmatskih sestavnih delov. Vključujejo tudi različne varnostne naprave kot primere v točki 5.
Stroji za mletje lahko na primer vključujejo naslednje dele opreme:
– podaljševalno roko;
– ejektor ali ekstraktor;
– zaščitni pokrov prek odvodne odprtine;
– pokrov prek dovodne odprtine polnilnega lijaka;
– transportni nosilec za blokirno matico, garnituro orodja, polž in polžni transporter;
– dvižno napravo za blokirno matico, nabor orodij, polž in polžni transporter;
– nalagalnik.
1.3 Predvidena uporaba
Sveže ali zmrznjeno meso, mesni izdelki ali ribe se v stroj za mletje mesa nalagajo ročno ali prek nalagalnika. Proizvod se nalaga na polža prek potisnega nastavka ali polžnega transporterja, njegova velikost pa se zmanjša z garnituro rezalnega orodja.
Stroji za mletje mesa niso namenjeni za čiščenje z vodnim curkom pod tlakom. Vendar je treba predvideti, da ni mogoče zagotoviti, da ta metoda v praksi ne bo nikoli uporabljena. Za obravnavo te možnosti naj bi se upoštevale zahteve iz točke 5.3.3.2.
Ta evropski standard določa vse velike nevarnosti, nevarne situacije in primere, povezane s stroji za mletje mesa, kadar se ti uporabljajo v skladu s predvidenim namenom in pod pogoji pričakovane nepravilne uporabe, ki jih določa proizvajalec (glejte točko 4).
Ta evropski standard določa nevarnosti, do katerih lahko pride pri začetku uporabe, delovanju, čiščenju, uporabi, vzdrževanju in izločitvi stroja iz uporabe.
1) V tem primeru naj bi se upoštevala določila standarda EN 13570.

General Information

Status
Withdrawn
Public Enquiry End Date
30-Nov-2013
Publication Date
05-Oct-2015
Withdrawal Date
06-Sep-2021
Technical Committee
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
07-Sep-2021
Due Date
30-Sep-2021
Completion Date
07-Sep-2021

RELATIONS

Buy Standard

Standard
SIST EN 12331:2015
English language
42 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day

Standards Content (sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Stroji za predelavo hrane - Stroji za mletje mesa - Varnostne in higienske zahteveNahrungsmittelmaschinen - Wölfe - Sicherheits- und HygieneanforderungenMachines pour les produits alimentaires - Hachoirs - Prescriptions relatives à la sécurité et à l'hygièneFood processing machinery - Mincing machines - Safety and hygiene requirements67.260Tovarne in oprema za živilsko industrijoPlants and equipment for the food industryICS:Ta slovenski standard je istoveten z:EN 12331:2015SIST EN 12331:2015en,fr,de01-november-2015SIST EN 12331:2015SLOVENSKI

STANDARDSIST EN 12331:2004+A2:20101DGRPHãþD
SIST EN 12331:2015
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12331
September
t r s w ICS
x yä t x r Supersedes EN
s t u u sã t r r u ªA tã t r s rEnglish Version

Food processing machinery æ Mincing machines æ Safety and hygiene requirements Machines pour les produits alimentaires æ Hachoirs æ Prescriptions relatives à la sécurité et à l 5hygiène

Nahrungsmittelmaschinen æ Wölfe æ Sicherheitsæ und Hygieneanforderungen This European Standard was approved by CEN on

s August
t r s wä

egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä

translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä

CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä

EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels

t r s w CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN

s t u u sã t r s w ESIST EN 12331:2015

EN 12331:2015 (E) 2 Contents Page European foreword ....................................................................................................................................................... 4 Introduction .................................................................................................................................................................... 5 1 Scope .................................................................................................................................................................... 6 2 Normative references .................................................................................................................................... 8 3 Terms and definitions ................................................................................................................................... 9 4 List of hazards ............................................................................................................................................... 11 5 Safety requirements and/or measures ................................................................................................ 14 5.1 General ............................................................................................................................................................. 14 5.2 Mechanical safety ......................................................................................................................................... 14 5.2.1 General ............................................................................................................................................................. 14 5.2.2 Zone 1 – Measures at mincing machines with feed intake and worm ....................................... 14 5.2.3 Zone 2 – Measures at mincing machines with feed intake hopper and screw conveyor .... 16 5.2.4 Zone 3 – Discharge outlet on mincing machines ............................................................................... 20 5.2.5 Zone 4 – Removal of worm and set of cutting tools.......................................................................... 21 5.2.6 Zone 5 – Drive system ................................................................................................................................. 21 5.2.7 Zone 6 – Machine components e.g. cover over hopper edge ........................................................ 22 5.2.8 Zone 7 to 10 – Mincing machines with loading devices .................................................................. 22 5.3 Electrical hazards ......................................................................................................................................... 24 5.3.1 General ............................................................................................................................................................. 24 5.3.2 Stopping function of switching devices ................................................................................................ 24 5.3.3 Emergency stop-device .............................................................................................................................. 24 5.3.4 Protection against water ingress ............................................................................................................ 24 5.3.5 ON- and OFF-switch ..................................................................................................................................... 25 5.3.6 Safety requirements related to electromagnetic phenomena ..................................................... 25 5.4 Hazards from loss of stability .................................................................................................................. 26 5.5 Noise reduction ............................................................................................................................................. 26 5.6 Hazards from use of gases (N2, CO2 and steam) ................................................................................. 26 5.7 Ergonomic requirements .......................................................................................................................... 26 5.8 Hygiene and cleaning .................................................................................................................................. 27 5.8.1 General ............................................................................................................................................................. 27 5.8.2 Food area ......................................................................................................................................................... 28 5.8.3 Splash area...................................................................................................................................................... 29 5.8.4 Non-food area ................................................................................................................................................ 29 5.8.5 Surface conditions ....................................................................................................................................... 29 5.8.6 Cleaning ........................................................................................................................................................... 29 6 Verification of safety requirements and/or measures ................................................................... 29 7 Information for use ..................................................................................................................................... 31 7.1 General ............................................................................................................................................................. 31 7.2 Operating instruction ................................................................................................................................. 31 7.3 Marking ............................................................................................................................................................ 33 Annex A (normative)

Noise test code for mincing machines (grade 2) ................................................. 34 A.1 Emission sound pressure level determination ................................................................................. 34 SIST EN 12331:2015

EN 12331:2015 (E) 3 A.2 Installation and mounting conditions ................................................................................................... 34 A.3 Operating conditions ................................................................................................................................... 34 A.4 Measurement ................................................................................................................................................. 34 A.5 Information to be recorded ...................................................................................................................... 34 A.6 Information to be reported ....................................................................................................................... 34 A.7 Declaration and verification of the noise emission values ............................................................ 35 Annex B (normative)

Design principles to ensure cleanability of mincing machines ...................... 36 B.1 Definition ......................................................................................................................................................... 36 B.2 Materials .......................................................................................................................................................... 36 B.2.1 General ............................................................................................................................................................. 36 B.2.2 Type of materials .......................................................................................................................................... 37 B.3 Design ............................................................................................................................................................... 37 B.3.1 General ............................................................................................................................................................. 37 B.3.2 Food area ......................................................................................................................................................... 37 B.3.3 Splash area ...................................................................................................................................................... 38 B.3.4 Non-food area ................................................................................................................................................. 40 Annex ZA (informative)

Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC ........................................................................................ 41 Bibliography ................................................................................................................................................................. 42

SIST EN 12331:2015

EN 12331:2015 (E) 4 European foreword This document (EN 12331:2015) 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 2016, and conflicting national standards shall be withdrawn at the latest by March 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12331:2003+A2:2010. 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 12331:2003+A2:2010 are listed below: — same pictures have been renewed and renumbered; — Clause 2: EN 1088 replaced by EN ISO 14119; — Clause 3: clarify of some definitions and use of this wording in the document; — Clause 4: transferred to a table; — 5.2.5.1: inclusion of a note that under certain conditions the combination of specific hole plates diameter with specific hole diameter represents a securing element; — Bibliography: with respect to 5.2.4.2 the standards DIN 9810 and UNI 11303 were added. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 12331:2015

EN 12331:2015 (E) 5 Introduction This document is a type-C-standard as stated in EN ISO 12100. The machinery concerned and the extent to which hazards, hazardous situations and hazardous events are covered are indicated in the scope of this document. When provisions of this type-C-standard are different from those which 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. SIST EN 12331:2015

EN 12331:2015 (E) 6 1 Scope 1.1 This European Standard specifies requirements for the design and manufacture of mincing machines (see Figures 1a and 1b) used in a stationary position. The machines covered by this European Standard are used for size reduction of fresh or frozen meat, meat products and fish (hereinafter referred to as product) by cutting in a set of cutting tools. Mincing machines for domestic uses are not included in this European Standard. Filling mincers are covered by EN 12463 “Food processing machinery – Filling machines and auxiliary machines – Safety and hygiene requirements”. This European Standard applies only to machines that are manufactured after the date of issue of this European Standard. Mincing machines in connection with using a hold-to-run foot switch are not covered by this European Standard. This European Standard covers: — mincing machines used in shops and preparation rooms; — mincing machines used in kitchens where sausages are prepared; — mincing machines used industrially; — accessories. The extent to which hazards are covered, is indicated in this European Standard. For other hazards which are not covered by this European Standard, machinery should comply with EN ISO 12100:2010 where applicable. This European Standard is not dealing with specific requirements for the control of mincing machines with foot switch. 1.2 This European Standard covers the following types: — mincing machine with feed tray, feed intake and pusher, diameter

¶ 52 mm on feed intake (see Figure 3); — mincing machine with feed tray, feed intake, restrictor plate and pusher, diameter > 52 mm on feed intake (see Figure 4); — mincing machine with feed intake hopper and cover, screw conveyor, with 1) or without mixing screw in feed intake hopper (see Figure 5); — mincing machine with feed intake hopper, with or without cover, screw conveyor, with1) or without mixing screw in the feed intake hopper, with loading device (continuously or discontinuously). Mincing machines comprise a machine base, a worm casing with a worm, a feed tray (with feed intake) or a feed intake hopper, a screw conveyor (and sometimes an additional mixing screw in the feed intake hopper), a set of cutting tools, a lock nut, a loading device, a drive motor and – depending on machine type – electrical, hydraulic and pneumatic components. They will also have various safeguarding devices as examples in Clause 5.

1) In this case, EN 13570 should be taken into consideration. SIST EN 12331:2015
EN 12331:2015 (E) 7

a) Mincing machine with feed tray and restrictor plate b) Mincing machine with feed intake hopper, cover and screw conveyor Key 1 lock nut 6 feed intake 11 feed intake hopper 15 lock nut 2 hole plate 7 pusher 12 screw conveyor 16 protective hood 3 blade 8 restrictor plate 13 cover 17 worm 4 worm 9 feed tray 14 on-/off-switch with protective hood 18 machine rack 5 worm casing 10 on-/off-switch

Figure 1 — Arrangement of a mincing machine Mincing machines may be equipped e.g. with — an extraction claw, — an ejector or extractor, — a protective hood over the discharge outlet, — a cover over the inlet opening of the feed intake hopper, — a transport carriage for the lock nut, the set of cutting tools, the worm and the screw conveyor, — a lifting device for the lock nut, the set of cutting tools, the worm and the screw conveyor, — a loading device. 1.3 Intended use The product is fed manually or by means of the loading device into the mincing machine. The product is fed to the worm either by means of a pusher or a screw conveyor and size reduced in the set of cutting tools. It is not intended that mincing machines are cleaned with pressurized water. However, it is to be foreseen that it is difficult to guarantee that this method will never be used in practice. In order to deal with this eventuality, the requirements of 5.3.4 should apply. SIST EN 12331:2015

EN 12331:2015 (E) 8 This European Standard specifies all significant hazards, hazardous situations and events relevant to mincing machines, when they are used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer (see Clause 4). This European Standard specifies the hazards which can arise during commissioning, operation, cleaning, use, maintenance and decommissioning of the machine. 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 349, Safety of machinery — Minimum gaps to avoid crushing of parts of the human body EN 614-1, Safety of machinery — Ergonomic design principles — Part 1: Terminology and general principles EN 953:1997+A1:2009, Safety of machinery — Guards — General requirements for the design and construction of fixed and movable guards EN 1005-1, Safety of machinery — Human physical performance — Part 1: Terms and definitions EN 1005-2, Safety of machinery — Human physical performance — Part 2: Manual handling of machinery and component parts of machinery EN 1005-3, 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, Degrees of protection provided by enclosures (IP Code) (IEC 60529) EN 61496-1, Safety of machinery — Electro-sensitive protective equipment — Part 1: General requirements and tests (IEC 61496-1) EN ISO 4287, Geometrical product specifications (GPS) — Surface texture: Profile method — Terms, definitions and surface texture parameters (ISO 4287) EN ISO 4871, Acoustics — Declaration and verification of noise emission values of machinery and equipment (ISO 4871) EN ISO 11204:2010, Acoustics — Noise emitted by machinery and equipment — Determination of emission sound pressure levels at a work station and at other specified positions applying accurate environmental corrections (ISO 11204:2010) EN ISO 11688-1, Acoustics — Recommended practice for the design of low-noise machinery and equipment — Part 1: Planning (ISO/TR 11688-1) EN ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk reduction (ISO 12100:2010) SIST EN 12331:2015

EN 12331:2015 (E) 9 EN ISO 13849-1:2008, Safety of machinery — Safety-related parts of control systems — Part 1: General principles for design (ISO 13849-1:2006) 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) 3 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 platform accessible standing area 3.2 worm rotating screw-shaped component in the worm casing for product transport to the set of cutting tools 3.3 step interlocked standing area 3.4 ejector/extractor device for detaching the set of cutting tools and the worm 3.5 extraction claw tool for detaching the set of cutting tools and the worm 3.6 loading device device for the lifting and tilting of transport cars and containers 3.7 container device for holding products to be processed 3.8 cover movable device with safety function 3.9 feed intake housing between the feed tray and the worm casing 3.10 feed intake hopper container for holding the products to be processed with safety function SIST EN 12331:2015

EN 12331:2015 (E) 10 3.11 locking device device for locking the trolley or container in the load bearing device 3.12 trolley movable device for holding the products to be processed 3.13 design dimension sum of dimensions measured from the floor, in the case of steps, intermediate steps or platforms from the standing place to the hopper edge and from the hopper edge to the first danger point in the feed intake hopper (see Figures 6 and 7) 3.14 cooling mincer machine with a cooling device for the feed intake and the worm casing 3.15 light barrier/light curtain optical-electrical safety component 3.16 hole plate fixed plate with bores 3.17 mixing screw rotating screw-shaped component in the feed intake hopper above the screw conveyor for mixing the product 3.18 blade cutting tool with one or several blades 3.19 feed tray container for holding the product to be processed 3.20 mechanical bar movable device with safety function 3.21 worm casing casing for holding the worm and the set of cutting tools 3.22 cutting chamber chamber inside the worm casing for holding the set of cutting tools 3.23 set of cutting tools rough-cutter, blade and hole plate for size reduction of product SIST EN 12331:2015

EN 12331:2015 (E) 11 3.24 protective grid movable device on the feed intake hopper mouth 3.25 protective hood movable device on the discharge outlet 3.26 restrictor plate stationary non-detachable device above the feed intake 3.27 pusher device used to push the product further in the feed intake 3.28 screw conveyor rotating screw-shaped component in the feed intake hopper for product transport to the worm 3.29 transport carriage movable device for holding the lock nut, set of cutting tools, worm and screw conveyor 3.30 lock nut device for locking the set of cutting tools in the cutting chamber 3.31 preparation room room for preparation of sale products 4 List of hazards This clause contains the hazards, hazardous situations and events, as far as they are dealt with in this document, identified by risk assessment as significant for this type of machinery and which require action to eliminate or reduce risk. Figure 2 shows the significant hazard zones of mincing machines. SIST EN 12331:2015

EN 12331:2015 (E) 12 Table 1 — List of significant hazards Hazards, hazardous situations and hazardous events Location or cause Clause/sub-clause in this European Standard Mechanical hazards General; significant hazard zones (see Figure 2). 5.2.1 Zone 1: Mincing machines with feed intake and worm; rotating screw conveyor at the end of the feed intake (see Figure 2a)); hazards of entanglement, shearing or severing of fingers or hand. 5.2.2 Zone 2: Mincing machines with feed intake hopper and screw conveyor/mixing screw; rotating screw conveyor or mixing screw in the feed intake hopper (see Figure 2b)); hazards of entanglement, shearing or severing of fingers, hand or forearm. 5.2.3 Zone 3: Discharge outlet on mincing machines; rotating blade behind the hole plate at the discharge outlet (see Figure 2b)); hazards of shearing of fingers. 5.2.4 Zone 4: Removal of worm and set of cutting tools; worm casing with worm and set of cutting tools at discharge outlet (see Figures 2a) and 2b)); hazard of crushing to hands and feet during installation and removal. 5.2.5 Zone 5: Drive mechanism; drive of worm, screw conveyor and mixing screw (see Figure 2b)); hazards of crushing, shearing or entanglement to fingers or hand. 5.2.6 Mechanical hazards Zone 6: Machine components, e.g. cover over hopper edge; unintentional shutting and intentional closing of the cover (see Figure 2b)); hazards of crushing to fingers or hand. 5.2.7 Loading device on mincing machines (see Figure 2b)); Zone 7: Space below transport carriage or container; hazards of trapping or crushing on floor level during descent to the body; hazards of impact during uncontrolled descent e.g. In the case of mechanical upsets to the body; Zone 8: Path of movement of transport carriage and container; hazards of impact from moving components to the body; hazards of crushing or shearing between moving and stationary components of fingers or hand; Zone 9: Drive elements and (where used) pulleys, chains or wire ropes; hazard of drawing-in, shearing, crushing or entanglement of fingers or hand; Zone 10: Discharge area; hazards of impact or crushing from load-bearing device to finger or hand. 5.2.8 Electrical hazards Electric shock from direct or indirect contact with live components; external influences on electrical equipment (e.g. cleaning with water). 5.3 Hazards generated by loss of stability Hazard of impact or crushing, if the machine or the loading device topples over to the body. 5.4 Hazards generated by noise Mincing machines generate noise which can result in hearing damage, in accidents due to interference with speech communication and interference with the perception of acoustic signals. 5.5 SIST EN 12331:2015

EN 12331:2015 (E) 13 Hazards, hazardous situations and hazardous events Location or cause Clause/sub-clause in this European Standard Hazards from use of gases and direct steam Hazard of suffocation or of hot or cold burns by leakage of gases such as e.g. carbon dioxide (CO2), nitrogen (N2) or direct steam. 5.6 Hazard generated by neglecting ergonomic principles Hazard of physical damage to the body due to unhealthy posture or excessive physical effort; hazard of physical damage to the body due to inadequate consideration of human anatomy when designing the machine. 5.7 Hazard generated by neglecting hygienic design principles Spoilage of foodstuff; hazard to health of the consumer from food poisoning; hazard due to infection of the operator; contamination of foodstuff from residues of cleaning and disinfecting agents or operating resources (e.g. lubricating greases, hydraulic fluid); hazard due to toxic and allergic reaction of the operator (e.g. acid burns from cleaning and disinfecting agents); contamination of the food by foreign bodies originating from raw materials, machine parts or from other sources. 5.8

a) Mincing machine with feed intake b) Mincing machine with feed intake hopper Key 1 zone 1 4 zone 4 7 zone 7 2 zone 2 5 zone 5 8 zone 8 3 zone 3 6 zone 6 9 zone 9

10 zone 10 Figure 2 — Danger zones SIST EN 12331:2015

EN 12331:2015 (E) 14 5 Safety requirements and/or measures 5.1 General Machinery shall comply with the safety requirements and/or protective measures of this clause. 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. Where the means of reducing the risk is by the arrangement or positioning of the installed machine, the manufacturer shall include in the Information for use a reference to the reduction means to be provided, and to any limiting value of the requirement, and, if appropriate, to the means of verification. Where the means of reducing the risk is by a safe system of work, the manufacturer shall include in the Information for use details of the system and of the elements of training required by the operating personnel. 5.2 Mechanical safety 5.2.1 General The machines shall be designed and constructed in accordance with the conditions mentioned below. The interlocking systems of guards shall comply with EN ISO 14119:2013, 4.2, and the safety-related parts of the control system shall comply with EN ISO 13849-1:2008. In addition interlocking systems shall be designed t

...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.