EN 1114-1:2011
(Main)Plastics and rubber machines - Extruders and extrusion lines - Part 1: Safety requirements for extruders
General Information
- Abstract
This European Standard specifies all significant hazards, hazardous situations and events relevant to all types of screw extruders for plastics and rubber, when they are used as intended and under conditions of misuse which are foreseeable by the manufacturer (see Clause 4).
This European Standard additionally covers the following feeding systems:
- hoppers;
- single roller feed;
- double roller feed;
- crammer feeder;
and the following ancillary equipment which form part of or are attached to the extruder:
- screen changers;
- melt/gear pumps;
- melt pipes and adaptors;
- static mixers;
- extruder head that give initial shape to the extruded material.
NOTE Metering devices are not covered by this standard.
This European Standard does not deal with hazards caused by the processing of materials and which may lead to a risk of fire or release of health hazardous materials.
An extruder conforming to this document is not regarded as a pressure vessel as defined in the Pressure Equipment Directive 97/23/EC.
Extruders usually do not produce explosive atmospheres. Where materials are processed, which may cause an explosive atmosphere, the Directive 94/9/EC on the Equipment intended for use in Potentially Explosive Atmospheres (ATEX) should be applied. Explosion hazards are not dealt with in this document.
This European Standard is not applicable to extruders which are manufactured before the date of its publication as EN.
- Status
- Published
- Publication Date
- 18-Oct-2011
- Withdrawal Date
- 29-Apr-2012
- Technical Committee
- CEN/TC 145 - Rubber and plastics machines - Safety
- Drafting Committee
- CEN/TC 145/WG 3 - Extruders and extrusion lines - Safety
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 06-Sep-2016
- Completion Date
- 23-Sep-2026
- Directive
- Harmonized Standard2006/42/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)OJ Ref: C, C 61 OJ Date: 29-Feb-2012
Not Harmonized98/37/EC - Machinery
Overview - EN 1114-1:2011 (CEN)
EN 1114-1:2011 is the CEN European standard that sets out safety requirements for screw extruders used in the plastics and rubber industries. It specifies the significant hazards, hazardous situations and events relevant to screw extruders when used as intended and under foreseeable misuse. The standard also covers common feeding systems (hoppers, single/double roller feeds, crammer feeders) and ancillary equipment attached to extruders such as screen changers, melt/gear pumps, melt pipes and adaptors, static mixers and extruder heads. Metering devices, explosion hazards (ATEX), fire originating from processed materials and pre‑existing machines are outside its scope.
Key topics and technical requirements
EN 1114-1:2011 organizes safety requirements around major hazard types and machine functions. Important topics include:
- Mechanical hazards: drive and power transmission, screw shaft, barrel openings, feeding systems, screen changers, melt pumps, static mixers, extruder heads, and moving parts protection.
- Electrical safety: requirements for electrical equipment, isolation/disconnect, protection against direct and indirect contact, and electrostatic phenomena.
- Thermal hazards: guarding for hot machine parts, hot extrudate, hot gases and liquids.
- Noise: noise assessment and the included Noise test code (Annex A) for measuring A‑weighted sound pressure and sound power levels.
- Materials-related hazards: guidance on hazards from processed materials (note: specific fire/toxic risks from materials processing are excluded).
- Ergonomics and working at height: design principles to reduce operator strain and fall risks.
- Protective measures and emergency systems: excess pressure protection, emergency stop, verification of conformity, machine marking and instruction manual requirements.
- Conformity and verification: procedures for checks, documentation and information for safe use.
Practical applications - who uses this standard
EN 1114-1 is used by:
- Extruder and extrusion-line manufacturers for safe design and CE‑compliance.
- Machine designers and OEMs integrating feeding systems and ancillary equipment.
- Safety engineers and maintenance teams implementing guards, interlocks, emergency stops and thermal/noise controls.
- Certification bodies and conformity assessors verifying compliance with EU Machinery Directive (see Annex ZA).
- Purchasing/procurement and plant engineers specifying safe extruders for production lines.
Related standards and notes
- Linked to EU Machinery Directive 2006/42/EC (see Annex ZA).
- Cross‑references to EN standards on guards, electrical equipment (EN 60204‑1), acoustics (EN ISO 11201, 3744, 3746), hydraulics (EN ISO 4413) and human factors (EN 614‑1).
- Does not cover ATEX (Directive 94/9/EC) or pressure vessels (Directive 97/23/EC).
Using EN 1114-1:2011 helps reduce mechanical, electrical, thermal and noise risks on screw extruders and supports safe design, operation and legal conformity of plastics and rubber extrusion equipment.
Relations
- Effective Date
- 08-Jun-2022
- Effective Date
- 25-Aug-2026
- Effective Date
- 09-Feb-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
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Frequently Asked Questions
EN 1114-1:2011 is a standard published by the European Committee for Standardization (CEN). Its full title is "Plastics and rubber machines - Extruders and extrusion lines - Part 1: Safety requirements for extruders". This standard covers: This European Standard specifies all significant hazards, hazardous situations and events relevant to all types of screw extruders for plastics and rubber, when they are used as intended and under conditions of misuse which are foreseeable by the manufacturer (see Clause 4). This European Standard additionally covers the following feeding systems: - hoppers; - single roller feed; - double roller feed; - crammer feeder; and the following ancillary equipment which form part of or are attached to the extruder: - screen changers; - melt/gear pumps; - melt pipes and adaptors; - static mixers; - extruder head that give initial shape to the extruded material. NOTE Metering devices are not covered by this standard. This European Standard does not deal with hazards caused by the processing of materials and which may lead to a risk of fire or release of health hazardous materials. An extruder conforming to this document is not regarded as a pressure vessel as defined in the Pressure Equipment Directive 97/23/EC. Extruders usually do not produce explosive atmospheres. Where materials are processed, which may cause an explosive atmosphere, the Directive 94/9/EC on the Equipment intended for use in Potentially Explosive Atmospheres (ATEX) should be applied. Explosion hazards are not dealt with in this document. This European Standard is not applicable to extruders which are manufactured before the date of its publication as EN.
This European Standard specifies all significant hazards, hazardous situations and events relevant to all types of screw extruders for plastics and rubber, when they are used as intended and under conditions of misuse which are foreseeable by the manufacturer (see Clause 4). This European Standard additionally covers the following feeding systems: - hoppers; - single roller feed; - double roller feed; - crammer feeder; and the following ancillary equipment which form part of or are attached to the extruder: - screen changers; - melt/gear pumps; - melt pipes and adaptors; - static mixers; - extruder head that give initial shape to the extruded material. NOTE Metering devices are not covered by this standard. This European Standard does not deal with hazards caused by the processing of materials and which may lead to a risk of fire or release of health hazardous materials. An extruder conforming to this document is not regarded as a pressure vessel as defined in the Pressure Equipment Directive 97/23/EC. Extruders usually do not produce explosive atmospheres. Where materials are processed, which may cause an explosive atmosphere, the Directive 94/9/EC on the Equipment intended for use in Potentially Explosive Atmospheres (ATEX) should be applied. Explosion hazards are not dealt with in this document. This European Standard is not applicable to extruders which are manufactured before the date of its publication as EN.
EN 1114-1:2011 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.
EN 1114-1:2011 has the following relationships with other standards: It is inter standard links to EN 1114-1:1996, ISO 8598:1996, EN 60529:1991, EN ISO 11202:2010, EN ISO 14122-3:2001, EN 349:1993+A1:2008, EN ISO 3744:2010, EN 1037:1995+A1:2008, EN 2286:1989, EN ISO 13849-1:2008, EN ISO 13732-1:2008, EN ISO 14122-4:2004/A1:2010, EN ISO 14122-2:2001/A1:2010, EN 953:1997+A1:2009, EN ISO 3747:2010. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 1114-1:2011 is associated with the following European legislation: EU Directives/Regulations: 2006/42/EC, 98/37/EC; Standardization Mandates: M/079, M/396. 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.
EN 1114-1:2011 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 - Ekstruderji in oprema za iztiskavanje - 1. del: Varnostne zahteve za ekstruderjeKunststoff- und Gummimaschinen - Extruder und Extrusionsanlagen - Teil 1: Sicherheitsanforderungen für ExtruderMachines pour les matières plastiques et le caoutchouc - Extrudeuses et lignes d'extrusion - Partie 1: Exigences de sécurité pour les extrudeusesPlastics and rubber machines - Extruders and extrusion lines - Part 1: Safety requirements for extruders83.200Oprema za gumarsko industrijo in industrijo polimernih materialovEquipment for the rubber and plastics industriesICS:Ta slovenski standard je istoveten z:EN 1114-1:2011SIST EN 1114-1:2011en,fr,de01-december-2011SIST EN 1114-1:2011SLOVENSKI
STANDARDSIST EN 1114-1:20001DGRPHãþD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1114-1
October 2011 ICS 83.200 Supersedes EN 1114-1:1996English Version
Plastics and rubber machines - Extruders and extrusion lines - Part 1: Safety requirements for extruders
Machines pour les matières plastiques et le caoutchouc - Extrudeuses et lignes d'extrusion - Partie 1 : Prescriptions de sécurité pour les extrudeuses
Kunststoff- und Gummimaschinen - Extruder und Extrusionsanlagen - Teil 1: Sicherheitsanforderungen für Extruder This European Standard was approved by CEN on 17 September 2011.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1114-1:2011: ESIST EN 1114-1:2011
Noise test code . 24A.1 Introduction . 24A.2 Determination of the A-weighted emission sound pressure level at the workstation . 24A.3 Determination of the A-weighted sound power level . 24A.4 Mounting and operating conditions . 25A.5 Information to be recorded and reported . 25A.5.1 General . 25A.5.2 General data . 25A.5.3 Mounting and operating conditions . 25A.5.4 Standards . 26A.5.5 Noise data. 26A.6 Declaration and verification of noise emission values . 26Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC . 27Bibliography . 28 SIST EN 1114-1:2011
Crushing Shearing Cutting and severing Drawing-in or trapping Ejection of parts of machinery Splashing of material Corresponding requirements in Clause 5.2 Rotating parts of the drive and power transmission machinery
X
X
X
X
X
5.2.1 Rotation of screw(s)
X
X
X
X
5.2.2,
5.2.3,
5.2.4 Moving parts of the feeding system
X
X
X
X
5.2.4.2,
5.2.4.3,
5.2.4.4 Overpressure in the barrel
X
X 5.2.3.2,
5.2.5 Accessible moving parts of the screen changer
X
X
X
X
X
5.2.6 Accessible moving parts of the drive of the melt/gear pump
X
X
X
X
5.2.7 Overpressure in melt/gear pump
X
X 5.2.5, 5.2.7 Overpressure in melt pipes and adaptors
X
X 5.2.5,
5.2.8 Overpressure in static mixer
X
X 5.2.5, 5.2.9 Dangerous movement of the extruder head and/or its parts
X
X
X
X
5.2.10
Extruder itself when moved or moving
X
5.2.11
4.3 Hazards due to electrical energy Electrical shock or burns due for example to direct or indirect contact with live parts; electrical shock due to electrostatic phenomena. SIST EN 1114-1:2011
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