Plastics and rubber machines - Size reduction machines - Part 1: Safety requirements for blade granulators and shredders

This European Standard specifies the essential safety requirements applicable to the design and construction of blade granulators and shredders used to reduce the size of products made from plastics and/or rubber.
Machines considered in this European Standard begin at the outer edge of the feeding device/feed opening and end at the discharge area.
This European Standard deals with all significant hazards, hazardous situations or hazardous events during all phases of the machine life cycle (see Annex A), when blade granulators and shredders are used as intended and under conditions of misuse that are reasonably foreseeable by the manufacturer.
This European Standard does not deal with:
- equipment for feeding material or discharging processed material that is not an integral part of the machine;
- machines intended to process materials that could be hazardous to health or flammable materials (e.g. expanded foam material).
This European Standard is not applicable to blade granulators and shredders that are manufactured before the date of its publication.

Kunststoff- und Gummimaschinen - Zerkleinerungsmaschinen - Teil 1: Sicherheitsanforderungen für Schneidmühlen und Schredder

Diese Europäische Norm legt die wesentlichen Sicherheitsanforderungen für die Konstruktion und den Bau von Schneidmühlen und Schreddern zum Zerkleinern von Gegenständen aus Kunststoff und/oder Gummi fest.
Die in dieser Europäischen Norm betrachteten Maschinen beginnen an der Außenkante der Beschickungs-einrichtung/Einfüllöffnung und enden mit dem Entnahmebereich.
Diese Europäische Norm behandelt alle signifikanten Gefährdungen, Gefährdungssituationen oder Gefährdungsereignisse in sämtlichen Phasen der Lebensdauer der Maschine (siehe Anhang A), wenn Schneidmühlen und Schredder bestimmungsgemäß und unter Bedingungen, die vom Hersteller als Fehlanwendung vernünftigerweise vorhersehbar sind, verwendet werden.
Diese Europäische Norm behandelt nicht:
- Ausrüstung zum Beschicken von Material oder zum Entnehmen von verarbeitetem Material, die kein integraler Bestandteil der Maschine ist;
- Maschinen zum Verarbeiten von Materialen, die gesundheitsgefährdend sein können, oder zum Verarbeiten entflammbarer Materialien (z. B. expandiertes Schaummaterial).
Diese Europäische Norm gilt nicht für Schneidmühlen und Schredder, die vor dem Datum ihrer Veröffentlichung hergestellt worden sind.

Machines pour les matières plastiques et le caoutchouc - Machines à fragmenter - Partie 1 : Prescriptions de sécurité relatives aux granulateurs à lames et aux déchiqueteurs

La présente Norme européenne spécifie les prescriptions essentielles de sécurité relatives à la conception et à la construction des granulateurs à lames et des déchiqueteurs utilisés pour fragmenter des produits en matière plastique et/ou en caoutchouc.
Les machines traitées dans la présente Norme européenne commencent au bord extérieur de l'ouverture d'alimentation/du dispositif d'alimentation et se terminent à la zone de déchargement.
La présente Norme européenne traite de tous les phénomènes dangereux, situations dangereuses ou événements dangereux pendant toutes les phases de son cycle de vie (voir Annexe A), lorsque les granulateurs à lames ou les déchiqueteurs sont utilisés selon l’usage prévu ou font l’objet d’un mauvais usage raisonnablement prévisible par le fabricant.
La présente Norme européenne ne traite pas:
—   des équipements d’alimentation de matériaux ou de déchargement du produit fini qui ne font pas partie intégrante de la machine ;
—   des machines destinées à la transformation de matériaux pouvant être dangereux pour la santé ou de matériaux inflammables (par exemple matériaux alvéolaire expansés) ;
La présente Norme européenne ne s’applique pas aux granulateurs ou déchiqueteurs qui ont été fabriqués avant sa date de publication.

Stroji za predelavo gume in plastike - Drobilni stroji - 1. del: Varnostne zahteve za rezalne drobilnike in drobilnike

Ta evropski standard določa bistvene varnostne zahteve, ki se uporabljajo za načrtovanje in izdelavo rezalnih drobilnikov in drobilnikov za zmanjševanje velikosti izdelkov iz plastičnih mas in/ali gume.
Ta evropski standard zajema stroje z začetkom pri zunanjem robu podajalnih naprav/odprtin za podajanje in s koncem v območju odvajanja.
Ta evropski standard obravnava vse pomembne nevarnosti, nevarne okoliščine ali nevarne dogodke, ki so navedeni v dodatku A, kadar se rezalni drobilniki in drobilniki uporabljajo v skladu s predvidenim namenom ter v pogojih pričakovane nepravilne uporabe, ki jih predvidi proizvajalec.
Ta evropski standard se ne uporablja za:
– opremo za dovajanje materiala ali odvajanje predelanega materiala, ki ni sestavni del stroja;
– tveganja, ki jih povzročajo predelani materiali in bi lahko bila nevarna za zdravje;
– varnostne ukrepe za zmanjšanje tveganja vžiga vnetljivih ostankov v materialu za predelavo;
– zahteve za lokalne izpušne prezračevalne sisteme.
Ta evropski standard se ne uporablja za rezalne drobilnike in drobilnike, izdelane pred datumom njegove objave.

General Information

Status
Published
Public Enquiry End Date
09-Aug-2015
Publication Date
13-Nov-2018
Technical Committee
VSN - Safety of machinery
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
04-Oct-2018
Due Date
09-Dec-2018
Completion Date
14-Nov-2018

Relations

Effective Date
03-Oct-2018
Effective Date
03-Oct-2018
Effective Date
01-Jul-2015
Effective Date
01-Jul-2015

Overview

EN 12012-1:2018 (CEN) is the European safety standard for plastics and rubber machines used for size reduction - specifically blade granulators and shredders. It defines essential safety requirements for machine design and construction from the outer edge of the feeding device/feed opening to the discharge area. The standard covers significant hazards throughout the machine life cycle, including intended use and reasonably foreseeable misuse. It excludes non‑integral feeding/discharge equipment and machines for hazardous or highly flammable materials (e.g., expanded foam), and does not apply to machines built before its publication.

Key topics and requirements

  • Scope & definitions: Clear terms for cutting chamber, rotor, stationary cutting tools, feeding device, screen, pusher and discharge area.
  • Risk assessment & lifecycle approach: Addresses hazards during installation, operation, maintenance and decommissioning (see Annex A).
  • Mechanical safeguards: Requirements to prevent access to rotating parts and cutting chambers, guard design and positioning (fixed and movable guards), interlocks and protective flaps.
  • Feeding and discharge safety: Rules for integrated feeding devices, prevention of access through cutting chamber openings and safe discharge arrangements.
  • Control system safety: Specifies safety-related control performance - references to performance levels / safety integrity per EN ISO 13849‑1:2015 and EN 62061:2005.
  • Noise: Design measures to reduce noise at source and an Annex B noise test code for measurement and declaration of noise emissions.
  • Electrical safety & emergency stop: Requirements consistent with EN 60204‑1 and emergency‑stop principles (EN ISO 13850).
  • Ergonomics & stability: Consideration of operator ergonomics and machine stability to prevent hazards during use.
  • Verification & documentation: Tests, verification of protective measures, instruction handbook, marking and warning signs required for safe use (Annexes and information for use).

Applications and users

EN 12012-1:2018 is used by:

  • Machine manufacturers to design and certify blade granulators and shredders compliant with EU safety requirements.
  • OEMs and integrators when incorporating size‑reduction machines into production lines.
  • Health & safety regulators, inspectors and market surveillance for conformity assessment.
  • Plant owners, employers and maintenance teams to understand required safeguards, safe operating procedures and documentation.
  • Consultants and safety engineers performing risk assessments and specifying protective measures.

Practical benefits include reduced accident risk, clearer compliance path with the Machinery Directive (see Annex ZA), and standardized noise and control‑system testing methods.

Related standards

Key normative references integrated in EN 12012-1:2018 include:

  • EN ISO 12100 (risk assessment)
  • EN ISO 13849‑1 (safety‑related parts of control systems)
  • EN 62061 (functional safety)
  • EN 60204‑1 (electrical equipment)
  • EN ISO 11201 / 11202 / 11204 and EN ISO 3744 / 3746 (noise measurement)
  • EN ISO 14119, 14120, 13857 (guards, interlocks, safety distances)

Keywords: EN 12012-1:2018, blade granulators, shredders, safety requirements, plastics and rubber machines, size reduction machines, cutting chamber, rotor, machine safety.

Standard

SIST EN 12012-1:2018

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27 pages
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Frequently Asked Questions

SIST EN 12012-1:2018 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Plastics and rubber machines - Size reduction machines - Part 1: Safety requirements for blade granulators and shredders". This standard covers: This European Standard specifies the essential safety requirements applicable to the design and construction of blade granulators and shredders used to reduce the size of products made from plastics and/or rubber. Machines considered in this European Standard begin at the outer edge of the feeding device/feed opening and end at the discharge area. This European Standard deals with all significant hazards, hazardous situations or hazardous events during all phases of the machine life cycle (see Annex A), when blade granulators and shredders are used as intended and under conditions of misuse that are reasonably foreseeable by the manufacturer. This European Standard does not deal with: - equipment for feeding material or discharging processed material that is not an integral part of the machine; - machines intended to process materials that could be hazardous to health or flammable materials (e.g. expanded foam material). This European Standard is not applicable to blade granulators and shredders that are manufactured before the date of its publication.

This European Standard specifies the essential safety requirements applicable to the design and construction of blade granulators and shredders used to reduce the size of products made from plastics and/or rubber. Machines considered in this European Standard begin at the outer edge of the feeding device/feed opening and end at the discharge area. This European Standard deals with all significant hazards, hazardous situations or hazardous events during all phases of the machine life cycle (see Annex A), when blade granulators and shredders are used as intended and under conditions of misuse that are reasonably foreseeable by the manufacturer. This European Standard does not deal with: - equipment for feeding material or discharging processed material that is not an integral part of the machine; - machines intended to process materials that could be hazardous to health or flammable materials (e.g. expanded foam material). This European Standard is not applicable to blade granulators and shredders that are manufactured before the date of its publication.

SIST EN 12012-1:2018 is classified under the following ICS (International Classification for Standards) categories: 83.200 - Equipment for the rubber and plastics industries. The ICS classification helps identify the subject area and facilitates finding related standards.

SIST EN 12012-1:2018 has the following relationships with other standards: It is inter standard links to SIST EN 12012-3:2002+A1:2008, SIST EN 12012-1:2007+A1:2008, SIST EN 12012-1:2007+A1:2008, SIST EN 12012-3:2002+A1:2008. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

SIST EN 12012-1:2018 is associated with the following European legislation: EU Directives/Regulations: 2006/42/EC; Standardization Mandates: M/396, M/BC/CEN/88/13. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.

SIST EN 12012-1:2018 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Stroji za predelavo gume in plastike - Drobilni stroji - 1. del: Varnostne zahteve za rezalne drobilnike in drobilnikeKunststoff- und Gummimaschinen - Zerkleinerungsmaschinen - Teil 1: Sicherheitsanforderungen für Schneidmühlen und SchredderMachines pour les matières plastiques et le caoutchouc - Machines à fragmenter - Partie 1 : Prescriptions de sécurité relatives aux granulateurs à lames et aux déchiqueteursPlastics and rubber machines - Size reduction machines - Part 1: Safety requirements for blade granulators and shredders83.200Oprema za gumarsko industrijo in industrijo polimernih materialovEquipment for the rubber and plastics industriesICS:Ta slovenski standard je istoveten z:EN 12012-1:2018SIST EN 12012-1:2018en,fr,de01-december-2018SIST EN 12012-1:2018SLOVENSKI
STANDARDSIST EN 12012-3:2002+A1:2008SIST EN 12012-1:2007+A1:20081DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12012-1
September
t r s z ICS
z uä t r r Supersedes EN
s t r s tæ sã t r r y ªA sã t r r zá EN
s t r s tæ uã t r r s ªA sã t r r zEnglish Version
Plastics and rubber machines æ Size reduction machines æ Part
sã Safety requirements for blade granulators and shredders Machines pour les matières plastiques et le caoutchouc æ Machines à fragmenter æ Partie
s ã Prescriptions de sécurité relatives aux granulateurs à lames et aux déchiqueteurs
Kunststoffæ und Gummimaschinen æ Zerkleinerungsmaschinen æ Teil
sã Sicherheitsanforderungen für Schneidmühlen und Schredder This European Standard was approved by CEN on
{ March
t r s zä
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 Serbiaá 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:
Rue de la Science 23,
B-1040 Brussels
t r s z CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s t r s tæ sã t r s z ESIST EN 12012-1:2018

List of significant hazards . 18 Annex B (normative)
Noise test code . 19 B.1 General . 19 B.2 Determination of the A-weighted emission sound pressure level at the workstation . 19 B.3 Determination of the A-weighted sound power level . 20 B.4 Mounting and operating conditions . 21 B.5 Information to be recorded and reported . 21 B.6 Declaration and verification of noise emission values . 22 Annex C (informative)
Example of protective flaps . 25 C.1 General . 25 C.2 Protective flap – Rigid type . 25 C.3 Protective flap – Flexible type . 25 SIST EN 12012-1:2018

Relationship between this European Standard and the essential requirements of EU Directive 2006/42/EC aimed to be covered . 26 Bibliography . 27
IEC Electropedia: available at http://www.electropedia.org/
ISO Online browsing platform: available at http://www.iso.org/obp 3.1 blade granulator/shredder machine that cuts material within a cutting chamber until the size has been reduced so that the product is allowed into the discharge area (see Figure 1 and Figure 2) Note 1 to entry Typically, granulators are high-speed machines (about 400 RPM) while shredders are low-speed machines (about 100 RPM). 3.2 cutting chamber part of the machine where size reduction takes place 3.3 rotor rotating device including the shaft and cutting tools (usually blades) inside the cutting chamber Note 1 to entry Rotors can be one or more (see Figure 3). 3.4 stationary cutting tool single or multiple cutting tool(s) (usually blades) fixed inside the cutting chamber 3.5 feeding area area of the machine where the feeding of material takes place 3.6 feeding device integral part of the machine (e.g. feeding hopper or similar device, rollers, screws) used for feeding the material into the cutting chamber 3.7 screen perforated rounded sheet fitted at the discharge side of the cutting chamber, to allow the passage of granulate or finished product of suitable size into the discharge area 3.8 working level surface on which the person who feeds the machine stands 3.9 loading table surface for placing material to be fed into the machine SIST EN 12012-1:2018

Key 1 cutting chamber 6 feeding opening 2 rotor 7 protective flap 3 rotor blade 8 discharge area 4 stationary cutting tools 9 screen 5 feeding hopper
Figure 1 — Example of a blade granulator
Key 1 feeding hopper 5 pusher 2 cutting chamber 6 screen 3 rotor 7 discharge area 4 stationary cutting tools
Figure 2 — Example of a shredder
Key 1 feeding hopper 2 cutting chamber 3 rotors 4 stationary cutting tools Figure 3 — Example of a shredder with two rotors SIST EN 12012-1:2018

taking into consideration the safety distances of EN ISO 13857:2008, Table 2, Table 3, Table 4 and/or Table 6. If a power operated feeding device is installed to process film, fibres, strands or similar materials likely to cause entanglement, mechanically actuated sensitive protective equipment (trip device) in accordance with EN ISO 13856-2:2013 shall be provided at the feed opening to automatically stop the feeding of the material. The overall system stopping performance shall be 1 s maximum. The position of the trip device shall be such that it is automatically activated in case of entanglement.
The activation of the sensitive protective equipment (trip device) shall not require a force greater than 150 N. The safety related parts of the control system shall be PLr = d or SIL = 2. If the dimensions of the feed opening are greater than 0,40 m in height and 0,50 m in width, falling through the feed opening shall be prevented by one of the following measures: — the lower edge of the feed opening shall be positioned at a minimum height of 1,20 m above the working level; or — a loading table shall be fixed and positioned at a minimum height of 1,20 m above the working level; or — use of a mechanical feeding device that is an integral part of the machine preventing whole body access. The ejection of parts of the machine or of material from the cutting chamber through the feed opening during processing shall be prevented by design of the feeding device (e.g. feed rolls for film).
Where the feeding device alone cannot eliminate this ejection, the following requirements shall apply:
— the feeding device shall prevent the direct ejection through the feed opening, and — indirect ejection shall be prevented by protective flaps (see Figure 1) and/or similar devices; examples are given in the informative Annex C. Additional measures may be required to reduce risks when feeding long materials that prevent closing of the protective flaps. Information shall be given in the instruction manual. See also 6.2.3, 6.2.4, 6.2.7 and 6.2.8. In case of larger machines, the manufacturer shall supply devices, (e.g. a mirror) that allow the operator to see from a distance into the feeding area. See also 6.2.5. 4.2.2.2 Additional requirements in the case of a movable feeding device If the integrated feeding device is movable, reaching the cutting tools in the cutting chamber shall be prevented until motion of the rotor(s) has ceased. For this purpose, the feeding device shall act as an interlocking guard with or without guard locking as specified in 4.2.1. SIST EN 12012-1:2018

EN ISO 12100:2010, 3.28.3 positioned at a minimum distance of 2 m from the danger area, so as to ensure a clear view of the opening and closing area of the feed hopper. The safety related parts of the control system shall be PLr = c or SIL = 1. 4.2.3 Discharge area The ejection of material or parts of the machine through the discharge openings during processing shall be limited by protective measures (e.g. tunnel, etc.) that shall be able to resist stresses related to ejection. See 6.2.3. Additional measures may be required to reduce this risk (see 6.2.3, 6.2.7, 6.2.9 and 6.4). See Annex C. Reaching the cutting tools in the cutting chamber from the discharge area shall be prevented until the motion of the rotor(s) has ceased. This shall be achieved by interlocking guards with or without guard locking as specified in 4.2.1. These interlocking guards may be replaced by integrated discharge devices, provided that they act as an interlocking guards with or without guard locking as specified in 4.2.1. If there is power operated movement of the discharge hopper, access to impact/crushing dangerous areas shall be prevented by: — a two-hand control device in accordance with of EN 574:1996+A1:2008, Type IIIB positioned in accordance with EN ISO 13855:2010 and it shal
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