EN 16743:2016

Food processing machinery - Automatic industrial slicing machines - Safety and hygiene requirements

1.1   General
This European Standard specifies requirements relating to the design and construction of automatic industrial slicing machines and auxiliary components.
The automatic industrial slicing machines covered by this standard are used for the cutting of meat and sausage products, cheese or other sliceable food products that can be cut using one or more blades. Automatic industrial slicing machines are designed to cut slices.
A sickle blade or an eccentrically moving blade is used for cutting. As a rule, the product only moves along one axis during the cutting process.
The auxiliary components covered by this standard are used for conveying slices from the cutting zone, for weighing or for sorting.
This European Standard covers all the significant hazards, hazardous situations and hazardous events identified by means of risk assessment associated with automatic industrial slicing machines and auxiliary components if they are used in accordance with regulations and under the conditions of reasonably foreseeable misuse defined by the manufacturer (see Clause 4).
This standard covers hazards which can arise during the commissioning, operation, cleaning, servicing and decommissioning of the machine.
This standard only applies to automatic industrial slicing machines and auxiliary components that were manufactured after the date of publication of this standard.
This standard applies to automatic industrial slicing machines and auxiliary components designed for industrial use. These are machines which are usually used in food processing facilities. The machines are normally permanently installed in one place.
This standard does not apply to cutting machines with moving infeed slides, slicing machines that are used in for example shops, restaurants, supermarkets, canteens etc. and are already covered in EN 1974.
This standard does not apply to portion cutting machines which are manufactured and put on the market in accordance with the requirements specified in EN 13870.
1.2   Machine description
This standard covers the following designs (see Figure 1 to Figure 7):
Design variations in the feed area:
-   automatic industrial slicing machine with manual feed;
-   automatic industrial slicing machine with automatic feed;
-   automatic industrial slicing machine with continuous feed.
Design variations in the outfeed area:
-   automatic industrial slicing machine with outfeed conveyor, without depositing unit and without subsequent auxiliary components;
-   automatic industrial slicing machine with depositing unit and if necessary with subsequent auxiliary components.
1.3   Machine design
Automatic industrial slicing machines mainly consist of machine housing, product support with automatic or manually operated grippers, downholder, blade housing, blade, outfeed device, associated drives and electrical, hydraulic or pneumatic components. Furthermore optional features can be added.
Automatic industrial slicing machines in the scope of this standard may be equipped with the following auxiliary components:
-   feeder;
-   interleaver;
-   outfeed conveyor;
-   depositing unit;
-   check weigher;
-   sorting components (e.g. rocker);
-   positioning devices (e.g. wheels).
1.4   Intended use
The intended use of automatic industrial slicing machines and auxiliary components, in accordance with this document, in accordance with regulations (as defined in EN ISO 12100:2010, 3.23) is described in 1.1.
The product is manually placed on the product base or automatically fed to the product base with a loading device. The product is supplied to the blade by automatic or manually operated grippers or conveyor slide or belt and the cutting process begins. The slices fall onto an outfeed conveyor or a depositing unit where they are arranged into formations, followed by the transport out of the cutting area.

Nahrungsmittelmaschinen - Automatische Schneidemaschinen für den industriellen Einsatz - Sicherheits- und Hygieneanforderungen

1.1   Allgemeines
Diese Europäische Norm legt Anforderungen an die Gestaltung und Konstruktion von automatischen Schneidemaschinen für den industriellen Einsatz und deren Zusatzeinrichtungen fest.
Die in dieser Norm behandelten automatischen Schneidemaschinen werden zum Schneiden und Portionieren von Fleisch- und Wurstwaren, Käse oder anderen schneidbaren Nahrungsmitteln verwendet, die mithilfe von mindestens einem Messer geschnitten werden können. Automatische Schneidemaschinen werden so ausgelegt, dass sie das Nahrungsmittel in Portionen schneiden können.
Ein Sichelmesser oder ein sich exzentrisch bewegendes Messer wird zum Schneiden verwendet. In der Regel bewegt sich das Schneidgut während des Schneidvorgangs nur entlang einer Achse.
Die in dieser Norm behandelten Zusatzeinrichtungen werden zur Beförderung der Scheiben aus dem Schneidbereich heraus verwendet, um sie zu wägen oder zu sortieren.
Diese Europäische Norm behandelt alle signifikanten Gefährdungen, Gefährdungssituationen und Gefähr-dungsereignisse, soweit sie durch eine Risikobeurteilung als signifikant für automatische Schneidemaschinen und Zusatzeinrichtungen festgestellt wurden, wenn sie gemäß den Verordnungen und unter Bedingungen von durch den Hersteller vernünftigerweise vorhersehbaren Fehlanwendungen verwendet werden (siehe Abschnitt 4).
Diese Norm behandelt die Gefährdungen, die im Zusammenhang mit Inbetriebnahme, Betrieb, Reinigung, Wartung und Zerlegung der Maschine auftreten können.
Diese Norm gilt ausschließlich für automatische Schneidemaschinen und deren Zusatzeinrichtungen, die nach dem Datum der Veröffentlichung dieser Norm hergestellt wurden.
Diese Norm gilt für automatische Schneidemaschinen und deren Zusatzeinrichtungen für den industriellen Einsatz. Dies sind Maschinen, die gewöhnlich in Nahrungsmittelverarbeitungsanlagen verwendet werden. Die Maschinen sind in der Regel fest an einem Ort installiert.
Diese Norm gilt nicht für Schneidemaschinen mit beweglichen Zuführungsrutschen, für Schneidemaschinen zur Verwendung in Geschäften, Restaurants, Supermärkten, Kantinen usw., die bereits in EN 1974 behandelt werden.
Diese Norm gilt nicht für Portionsschneidemaschinen, die in Übereinstimmung mit den Anforderungen von EN 13870 hergestellt und auf den Markt gebracht wurden.

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

1.1   Généralités
La présente Norme européenne spécifie les prescriptions relatives à la conception et à la construction de trancheurs industriels automatiques et de composants auxiliaires.
Les trancheurs industriels automatiques traités dans la présente norme sont utilisés pour la coupe de viandes et de produits de charcuterie, de fromages ou autres produits alimentaires pouvant être tranchés au moyen d'une ou de plusieurs lames. Les trancheurs industriels automatiques sont conçus pour la coupe en tranches.
Une lame de coupe ou une lame à mouvement excentrique est utilisé pour la coupe. En règle générale, le produit bouge uniquement le long de l'axe pendant le processus de coupe.
Les composants auxiliaires traités dans la présente norme sont utilisés pour le transfert des tranches depuis la zone de coupe, pour pesage ou tri.
La présente Norme européenne traite de tous les phénomènes dangereux, situations dangereuses et événements dangereux significatifs identifiés au moyen de l'évaluation des risques associés aux trancheurs industriels automatiques et composants auxiliaires, s'ils sont utilisés conformément à la réglementation et dans des conditions de mauvais usage raisonnablement prévisible par le fabricant (voir l'Article 4).
La présente norme traite des phénomènes dangereux pouvant survenir pendant la mise en service, le fonctionnement, le nettoyage, l'entretien et la mise hors service de la machine.
La présente norme ne s'applique qu'aux trancheurs industriels automatiques et composants auxiliaires fabriqués après sa date de publication.
La présente norme s'applique aux trancheurs industriels automatiques et aux composants auxiliaires conçus pour un usage industriel. Ce sont des machines qui sont généralement utilisées dans des entreprises de transformation alimentaire. Normalement, ces machines sont installées à un endroit de façon permanente.
La présente norme ne s'applique pas aux machines à couper dotées de coulisses d'alimentation, aux trancheurs utilisés par exemple dans les magasins, restaurants, supermarchés, cantines, etc. et qui sont déjà traités dans l'EN 1974.
La présente norme ne s'applique pas aux portionneuses fabriquées et mises sur le marché conformément aux prescriptions spécifiées dans l'EN 13870.
1.2   Description de la machine
La présente norme traite des conceptions suivantes (voir de la Figure 1 à la Figure 7) :
Variations de conception dans la zone d'alimentation :
-   trancheur industriel automatique à avance manuelle ;
-   trancheur industriel automatique à avance automatique ;
-   trancheur industriel automatique à avance continue.
Variations de conception dans la zone d'évacuation :
-   trancheur industriel automatique avec tapis d'évacuation, sans dispositif de déversement, et sans autres composants auxiliaires ;
-   trancheur industriel automatique avec un dispositif de déversement et, si nécessaire, d'autres composants auxiliaires.
1.3   Conception de la machine
Les trancheurs industriels automatiques sont principalement composés d'un bâti, un support de produit avec des outils de préhension manuels ou automatiques, un dispositif de maintien, un bâti pour la lame, une lame, un dispositif d'évacuation, des dispositifs d'entraînement associés et des composants électriques, hydrauliques et pneumatiques. D'autres éléments optionnels peuvent être ajoutés.
Les trancheurs industriels automatiques entrant dans le domaine d’application de la présente norme peuvent être équipés des composants auxiliaires suivants :
-   dispositif d’amenée ;
-   accessoire pour intercalaires ;
-   tapis d'évacuation ;
-   dispositif de déversement ;
-   balance de contrôle ;
-   composants pour le tri (par exemple un basculeur) ;
-   dispositifs de positionnement (par exemple des roues).

Stroji za predelavo hrane - Avtomatski industrijski stroji za rezanje na rezine - Varnostne in higienske zahteve

1.1 Splošno
Ta evropski standard podaja zahteve, povezane z načrtovanjem in gradnjo predvsem nepremičnih strojev za rezanje na rezine ter pomožnih sestavnih delov.
Stroji za rezanje na rezine, ki jih zajema ta standard, se uporabljajo za rezanje in razdeljevanje mesnih izdelkov in klobas, sira ter drugih prehrambnih izdelkov, ki jih je mogoče rezati na rezine z enim ali več rezili. Stroji za rezanje na rezine so zasnovani za rezanje kosov ali rezin.
Za rezanje se uporablja srpasto rezilo ali ekscentrično premikajoče se rezilo. Praviloma se med postopkom rezanja izdelek premika samo po eni osi.
Pomožni sestavni deli, ki jih zajema ta standard, se uporabljajo za odvajanje izdelkov z območja rezanja, tehtanje ali razvrščanje rezin.
Posebne nevarnosti, povezane z ločenimi pomožnimi sestavnimi deli, ki se uporabljajo za samodejno dovajanje mesnega izdelka ter za oblikovanje in pripravo porcij, niso zajete v tem standardu. Ti pomožni sestavni deli morajo ustrezati zahtevam standarda EN ISO 12100:2010, če je to ustrezno.
Ta evropski standard zajema vse bistvene nevarnosti, nevarne okoliščine in nevarne dogodke, identificirane z oceno tveganj, povezanih z avtomatskimi stroji za rezanje na rezine ter pomožnimi sestavnimi deli, če se ti uporabljajo, v skladu s predpisi in pogoji predvidljive napačne uporabe, ki jo je opredelil proizvajalec (glej točko 4).
Ta standard zajema nevarnosti, do katerih lahko pride pri usposabljanju za zagon, obratovanju, čiščenju, servisiranju in izločitvi stroja iz uporabe.
Ta standard se uporablja samo za avtomatske stroje za rezanje na rezine in pomožne sestavne dele, ki so bili proizvedeni po datumu objave tega standarda.
Ta standard se uporablja za avtomatske stroje za rezanje na rezine in pomožne sestavne dele, ki so bili zasnovani za industrijsko uporabo. To so stroji, ki se običajno uporabljajo v obratih za predelavo hrane. Stroji so običajno trajno nameščeni na enem mestu.
Ta standard se ne uporablja za stroje za rezanje s premičnimi podajalnimi drsniki, stroje za rezanje na rezine, ki se uporabljajo na primer v trgovinah, restavracijah, supermarketih, menzah ipd. in jih že zajema standard EN 1974.
Ta standard se ne uporablja za stroje za rezanje na rezine, ki so bili proizvedeni in dani na trg v skladu z zahtevami standarda EN 13870.
1.2 Opis stroja
Ta standard zajema naslednje zasnove (glej slike od 1 do 7):
Različice zasnove glede na območje podajanja:
– stroj za rezanje na rezine z ročnim podajanjem
– stroj za rezanje na rezine s samodejnim podajanjem
– stroj za rezanje na rezine z neprekinjenim podajanjem
Različice zasnove glede na izhodno območje:
– stroj za rezanje na rezine z izhodnim trakom, brez enote za odlaganje in brez zaporednih pomožnih sestavnih delov
– stroj za rezanje na rezine z enoto za odlaganje in po potrebi zaporednimi pomožnimi sestavnimi deli
(...)

General Information

• Status: Published
• Publication Date: 12-Jan-2016
• Withdrawal Date: 30-Jul-2016
• ICS: 67.260 - Plants and equipment for the food industry
• Technical Committee: CEN/TC 153 - Food processing machinery - Safety and hygiene specifications
• Drafting Committee: CEN/TC 153/WG 2 - Meat processing machinery
• Current Stage: 9060 - Closure of 2 Year Review Enquiry - Review Enquiry
• Start Date: 02-Sep-2021
• Completion Date: 02-Sep-2021
• Directive: 2006/42/EC - Directive 2006/42/EC of the European Parliament and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast)
• Mandate: M/396 - Mandate to CEN and Cenelec for standardisation in the field of machinery
• Ref Project: SIST EN 16743:2016 - Food processing machinery - Automatic industrial slicing machines - Safety and hygiene requirements

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Stroji za predelavo hrane - Avtomatski industrijski stroji za rezanje na rezine - Varnostne in higienske zahteveNahrungsmittelmaschinen - Automatische Schneidemaschinen für den industriellen Einsatz - Sicherheits- und HygieneanforderungenMachines pour les produits alimentaires - Trancheurs automatiques industriels - Prescriptions relatives à la sécurité et l'hygièneFood processing machinery - Automatic industrial slicing machines - Safety and hygiene requirements67.260Tovarne in oprema za živilsko industrijoPlants and equipment for the food industryICS:Ta slovenski standard je istoveten z:EN 16743:2016SIST EN 16743:2016en,fr,de01-junij-2016SIST EN 16743:2016SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16743
January
t r s x ICS
x yä t x r English Version
Food processing machinery æ Automatic industrial slicing machines æ Safety and hygiene requirements Machines pour les produits alimentaires æ Trancheurs automatiques industriels æ Prescriptions relatives à la sécurité et l 5hygiène
Nahrungsmittelmaschinen æ Automatische Schneidemaschinen für den industriellen Einsatz æ Sicherheitsæ und Hygieneanforderungen This European Standard was approved by CEN on
s November
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 x CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s x y v uã t r s x ESIST EN 16743:2016

Noise test code for automatic industrial slicing machines (grade 2) . 42 A.1 Determination of the emission sound pressure level . 42 A.2 Installation and mounting conditions . 42 A.3 Operating conditions . 42 A.4 Measurement . 42 A.5 Information to be recorded . 42 A.6 Information to be reported . 42 A.7 Declaration and verification of noise emission values . 43 Annex B (normative)
Design principles to ensure the cleanability of automatic industrial slicing machines and auxiliary components . 44 B.1 Terms and definitions . 44 B.2 Materials of construction . 45 B.2.1 General . 45 B.2.2 Type of materials . 45 B.3 Design . 45 B.3.1 General . 45 B.3.2 Food area . 45 B.3.3 Splash Area. 47 B.3.4 Non-food area . 49 B.3.5 Machines standing on a floor – mobile machines . 49 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC . 50 Bibliography . 51 SIST EN 16743:2016

Key 1 feed guard 2 product support 3 blade 4 blade guard 5 machine housing 6 gripper 7 outfeed conveyor 8 protective outfeed guard Figure 1 — Machine with manual feed and outfeed conveyor and without depositing unit SIST EN 16743:2016

Key 1 feed guard 2 product support 3 blade 4 blade guard 5 machine housing 6 gripper 7 outfeed conveyor 8 protective outfeed guard Figure 2 — Machine with manual feed and outfeed conveyor and without depositing unit SIST EN 16743:2016

Key 1 feed guard 2 product support 3 blade 4 blade guard 5 machine housing 6 gripper 7 interleaver 8 depositing unit 9 outfeed guard 10 weigher 11 rocker Figure 3 — Machine with manual feed, depositing unit and auxiliary components SIST EN 16743:2016

Key 1 feed guard 2 product support 3 blade 4 blade guard 5 machine housing 6 gripper 7 outfeed conveyor 8 protective outfeed guard Figure 4 — Machine with automatic feed and outfeed conveyor and without depositing unit SIST EN 16743:2016

Key 1 feed guard 2 product support 3 blade 4 blade guard 5 machine housing 6 gripper 7 depositing unit 8 protective outfeed guard 9 check weigher 10 rocker Figure 5 — Machine with automatic feed and depositing unit and auxiliary components SIST EN 16743:2016

Key 1 feed guard 2 product support 3 blade 4 blade guard 5 machine housing 6 gripper 7 check weigher 8 protective outfeed guard 9 depositing unit Figure 6 — Machine with automatic feed with depositing unit and auxiliary components SIST EN 16743:2016

Key 1 feed guard 2 product support 3 blade (covered) 4 blade guard 5 machine housing 6 protective outfeed guard 7 depositing unit / outfeed conveyor Figure 7 — Machine with continuous feed 1.3 Machine design Automatic industrial slicing machines mainly consist of machine housing, product support with automatic or manually operated grippers, downholder, blade housing, blade, outfeed device, associated drives and electrical, hydraulic or pneumatic components. Furthermore optional features can be added. Automatic industrial slicing machines in the scope of this standard may be equipped with the following auxiliary components: — feeder; — interleaver; — outfeed conveyor; — depositing unit; — check weigher; — sorting components (e.g. rocker); — positioning devices (e.g. wheels). SIST EN 16743:2016

(IEC 60529) EN ISO 3744:2010, Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Engineering methods for an essentially free field over a reflecting plane (ISO 3744:2010) EN ISO 4413, Hydraulic fluid power - General rules and safety requirements for systems and their components (ISO 4413) EN ISO 4414, Pneumatic fluid power - General rules and safety requirements for systems and their components (ISO 4414) EN ISO 4871, Acoustics - Declaration and verification of noise emission values of machinery and equipment (ISO 4871) SIST EN 16743:2016

Key 1 zone 1 2 zone 2 3 zone 3 4 zone 4 5 zone 5 6 zone 6 7 zone 7 Figure 8 — Danger zones on an automatic industrial slicing machine with manual feed
Key 1 zone 1 2 zone 2 3 zone 3 4 zone 4 5 zone 5 6 zone 6 7 zone 7 Figure 9 — Danger zones on an automatic industrial slicing machine with automatic feed SIST EN 16743:2016

Key 1 rocker 2 subsequent part of the machine, e.g. conveyor belt A danger zone Figure 10 — Danger zone generated by pivoting the rocker 5 Safety and hygiene requirements and/or protective measures 5.1 General Automatic industrial slicing machines and their auxiliary components shall comply with the safety and hygiene requirements and/or the protective measures listed in this clause. Additionally, for hazards which are relevant but not significant and so have not been addressed in this standard, the machine shall be designed according to the guidelines of EN ISO 12100:2010 (e.g. sharp edges). Where the assembly or installation of the machine is the method of risk reduction, the manufacturer shall describe how this can be achieved in the instruction manual. Where the type of risk reduction should be achieved through safe use, the manufacturer shall specify the exact details and the required training for the operations in the instruction manual. 5.2 Mechanical hazards 5.2.1 General Automatic industrial slicing machines shall be designed and built in accordance with the requirements listed below. The guards have to comply with EN 953. Fasteners for fixed guards shall remain attached to the guard or on the machine, if the guard is removed. Unless specified in other sub-paragraphs, the locking devices fitted to moveable guards shall meet the requirements of EN ISO 14119:2013, 4.2, and the safety related parts of the control shall meet at least performance level “c” of EN ISO 13849-1:2008. In addition, locking devices shall be installed inside the machine housing and meet EN ISO 14119:2013, Clause 7. SIST EN 16743:2016

· 1600 mm to < 2000 mm, the safe distance to the first danger spot shall be
· 850 mm; — if a sensitive protective equipment is mounted at a height of 2000 mm on the guard (e.g. light guard, pressure sensitive edge), the safety distance of the protection device (in actuated position) shall be 130 mm to the first danger zone (see Figure 11). SIST EN 16743:2016

Key 1 danger zone (shortest distance) 2 guard 3 sensitive protective equipment 4 reference plane Figure 11 — Safety measures to prevent reaching danger zones over the guard If active opto-electronic protective devices are used to prevent access to the danger zone, they shall comply with EN ISO 13855:2010. Openings in the guards shall meet the requirements of EN ISO 13857:2008, Table 4. This does not apply to the infeed opening if it meets one of the following requirements: — unclosed infeed opening shall be set up in such a way that the dimensions listed in Table 2 are adhered to (see Figure 12); — sensitive protective equipment shall be set up in such a way that the dimensions listed in Table 2 are adhered to (see Figure 13); — interlocking movable guard. The requirements of 5.2.4 (Zone 3) shall be adhered to for the locked guard. SIST EN 16743:2016

·
1000 1000 1000 850 850 850 550 230 B
¶
280 250 230 200 180 150 120 30 C
¶
300 280 250 230 200 180 150 50 D
¶
330 300 280 250 230 200 180 50 E
¶
300 500 — 300 500 — — — A = Safety distance to danger zone B = Aperture height of infeed opening C = Aperture height of infeed opening in combination with a switchgear assembly (e.g. safety strip) D = Aperture height of infeed opening in combination with one or more light barriers E = Aperture width of infeed opening Dimensions in millimetres
Key 1 = guard 2 = sensitive protective equipment 3 = active opto-electronic protective device Figure 12 — Feed – Infeed opening safety distances Figure 13 — Feed – Infeed opening safety distances 5.2.2.2 Manual loading If the guard to protect the feed area is open during manual loading (incl. product search of the grippers), access to the moving components in the feed area (e.g. product support, grippers, downholders) shall be prevented. This is achieved e.g. by the following measures: — the movement of the components shall take place only while the operator is pressing the hold-to-run control is actuated by the operator (jog mode); or — if the movement speed of the driven components is less than 0,5 m/s and no danger is caused due to insufficient space, the movement can be automated after the start by the operator. The feed area shall be designed so that a getting onto the product support is not readily available, e.g. by a height difference between the reference plane and product support of at least 700 mm. — in the instruction manual, the manufacturer shall describe the procedure to manual loading, the residual risk and the training of the operator. The instruction manual shall state that during manual loading the operator when handling the product shall not reach with his hand within the effective range of the gripper. The effective range of the gripper shall be indicated in the manual. SIST EN 16743:2016

·
1000 850 550 230 B
¶
150 125 85 30 A = Safety distance to danger zone B = Aperture height at the front edge of the guard
Figure 14 — Discharge area – safety measures If the arm is supported by a restrictive obstacle of at least 300 mm when entering the protective hood laterally, the following safety distances are required (see Figure 15): — Aperture width (D) at the front of the guard
¶ 150 mm and — Safety distance (A) to the danger zone
· 550 mm SIST EN 16743:2016
Figure 15 — Discharge section — safety measures with restricted movement If the access opening at the delivery end on the bottom cannot be secured by a guard (e.g. protective sheet) the discharge conveyor, the depositing unit or the following auxiliary component shall be designed so that the access opening is prevented. The openings and safety distance shall meet the requirements set by EN ISO 13857:2008, Table 4. If the access is prevented by the following auxiliary component, it shall be ensured that the protective function of the auxiliary component is not changed. This can be achieved by lateral guide plates, stops or locking devices. 5.2.4 Zone 3 – Movable guards 5.2.4.1 Manually operated guards Manually operated guards shall either be designed in such a way that they can be moved and adjusted safely or be fitted with handles. The force needed to lift or lower a guard shall not exceed 250 N. Movable guards shall be designed to prevent unexpected closing. This can be achieved by the following measures: — in the open position the movable guard shall be sufficiently far behind its dead point; — if the movable guard is on the open position and not sufficiently far behind its dead point, some measure, e.g. a counter weight, a spring or a mechanical locking device shall prevent unexpected closing. Moveable guards shall be at minimum interlocked or interlocked with guard locking. Usually fixed guards, even those which are movable for ergonomic reasons and need only be opened for maintenance or repairs, are excluded from this. 5.2.4.2 Power-operated guards If power operated guards are not safe entirely by design (e.g. pre-leading deflector), the risk of crushing by the guard shall be reduced by the following measures: — when closing the guard the maximum crushing force of the guard shall be 135 N and the maximum impact force shall be 180 N; — when closing the guard the maximum closing speed shall be 200 mm/s if the distance from the guard to the closing edge is > 200 mm; SIST EN 16743:2016

¶ 200 mm; — guards whose distance from the guard to the closing edge in its final position is > 20 mm and
¶ 30 mm, the distance to the first danger zone shall be at least 450 mm; — guards whose distance from the guard to the closing edge in its final position is > 6 mm, the locking force shall be at least 300 N; — guards whose distance from the guard to the closing edge in its final position is
¶ 6 mm, the locking force shall be at least 200 N. Power-operated guards that are held closed by a holding force shall not be fitted with handles. In the event of a power failure (e.g. electrical power failure, pipe or hose break), the movement of the power-operated guard shall be automatically stopped if the crushing force of the guard is greater than 135 N. Safety-related parts of control shall meet the requirements set by EN ISO 13849-1:2008. The power operated guard shall be fitted with electro-sensitive protective equipment which stops the movement of the guard when an obstruction is sensed. Where the operator has to walk underneath a guard that pivots up, the minimum height under the opened guard shall be 1800 mm. The edges of the guard shall not be sharp. The manufacturer shall describe the safe working practices for the machine in the instruction manual. These working procedures shall be part of the training and shall be followed by the operator. The manufacturer shall describe the guards, the residual risks and the training of the operator in the instruction handbook. 5.2.5 Zone 4 – Blades 5.2.5.1 General Injury by cutting or piercing when dealing with the blade or on a stationary blade shall be prevented. This can be achieved e.g. by the following measures: — The manufacturer shall supply a protection device which allows the blade to be installed, removed and transported safely. — The manufacturer shall describe the residual risks when handling the blade and working in the cutting zone, especially during cleaning and maintenance operations in the instruction manual. The use and handling of the blade guard shall be described in the instruction manual. — The instruction manual shall state that cut-resistant gloves shall be worn when handling the blade and working in the cutting zone. The instruction manual shall also include information about storage, transportation, maintenance, cleaning and use of the blade. The control system of the machine shall ensure that the stationary blade cannot move unintentionally both when the guard is open or closed. This requirement can be achieved by using a braking device. SIST EN 16743:2016
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