Safety of woodworking machines - Circular sawing machines - Part 12: Pendulum cross-cut sawing machines

This European Standard deals with all significant hazards, hazardous situations and events as listed in Clause 4 which are relevant to pendulum cross-cut sawing, herein after referred to as 'machines', designed to cut solid wood, chipboard, fibreboard, plywood and also these materials when covered with plastic edging and/or plastic/light alloy laminates when they are used as intended and under the conditions foreseen by the manufacturer including reasonably foreseeable misuse. This European Standard does not apply to: a) machines for cross cutting logs; b) machines where the saw unit can be rotated about a horizontal axis.

Sicherheit von Holzbearbeitungsmaschinen - Kreissägemaschinen - Teil 12: Pendelkreissägemaschinen

Dieses Dokument behandelt alle im Abschnitt 4 aufgeführten signifikanten Gefährdungen, Gefährdungs-situationen und Gefährdungsereignisse, die auf Pendelkreissägemaschinen zutreffen — im Folgenden als „Maschinen“ bezeichnet —, die konstruiert sind zum Schneiden von Massivholz, Spanplatten, Faserplatten oder Sperrholz sowie diesen Werkstoffen, wenn sie mit Kunststoffkanten versehen sind und/oder Beschich-tungen aus Kunststoff/Leichtmetall-Legierung haben, wenn sie entsprechend den vom Hersteller vorgesehenen Bedingungen einschließlich vernünftigerweise vorhersehbarem Fehlverhalten verwendet werden.
Jegliche Einrichtung zum Positionieren des Werkstücks, die an der Maschine angebaut ist, ist in diesem Dokument mit behandelt.
Dieses Dokument gilt nicht für:
a)   Maschinen zum Querschneiden von Rundholz;
b)   Maschinen, bei denen das Sägeaggregat um eine waagrechte Achse gedreht werden kann.
Dieses Dokument behandelt bei CNC-Maschinen nicht die Gefährdungen im Zusammenhang mit der elektromagnetischen Verträglichkeit (EMV).
ANMERKUNG   Die Anforderungen in diesem Dokument gelten für alle Maschinen unabhängig von der Art ihrer Steuerung z.B. elektromechanisch und/oder elektronisch.
Dieses Dokument gilt in erster Linie für Maschinen, die nach seiner Veröffentlichung als EN hergestellt wurden.

Sécurité des machines pour le travail du bois - Machines à scies circulaires - Partie 12: Tronçonneuses pendulaires

Le présent document traite de tous les phénomènes dangereux, situations et événements dangereux significatifs tels qu’énumérés à l’Article 4, applicables aux tronçonneuses pendulaires, ci-après désignées «machines», conçues pour la coupe de bois massif, de panneaux de particules, de panneaux de fibres, de contre-plaqué, ainsi que ces matériaux lorsque leurs surfaces ou leurs chants sont recouverts de matière plastique et/ou de plastique/alliage léger stratifié, lorsqu’elles sont utilisées normalement et dans les conditions prévues par le fabricant, incluant une mauvaise utilisation raisonnablement prévisible.
Tout équipement, fixé sur la machine, permettant le positionnement de la pièce à travailler est inclus dans le présent document.
Le présent document ne s'applique pas aux :
a)   machines conçues pour le tronçonnage de grumes ;
b)   machines dont l'unité de sciage peut pivoter autour d'un axe horizontal.
Pour les machines à commande numérique (CN), le présent document ne couvre pas les phénomènes dangereux liés à la compatibilité électromagnétique (CEM).
NOTE   Les prescriptions du présent document s’appliquent à toutes les machines quelle que soit leur méthode de commande, par exemple : électromécanique et/ou électronique.
Le présent document est applicable avant tout aux machines fabriquées après la date de sa publication comme norme EN.

Varnost lesnoobdelovalnih strojev - Krožne žage - 12. del: Nihalne krožne žage za prečni rez

General Information

Status
Published
Public Enquiry End Date
19-Dec-2011
Publication Date
28-Jan-2014
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
13-Jan-2014
Due Date
20-Mar-2014
Completion Date
29-Jan-2014

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Sicherheit von Holzbearbeitungsmaschinen - Kreissägemaschinen - Teil 12: PendelkreissägemaschinenSécurité des machines pour le travail du bois - Machines à scies circulaires - Partie 12: Tronçonneuses pendulairesSafety of woodworking machines - Circular sawing machines - Part 12: Pendulum cross-cut sawing machines79.120.10Lesnoobdelovalni strojiWoodworking machines25.080.60Strojne žageSawing machinesICS:Ta slovenski standard je istoveten z:EN 1870-12:2013SIST EN 1870-12:2014en,fr,de01-marec-2014SIST EN 1870-12:2014SLOVENSKI
STANDARDSIST EN 1870-12:2004+A1:20091DGRPHãþD



SIST EN 1870-12:2014



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1870-12
October 2013 ICS 79.120.10 Supersedes EN 1870-12:2003+A1:2009English Version
Safety of woodworking machines - Circular sawing machines - Part 12: Pendulum cross-cut sawing machines
Sécurité des machines pour le travail du bois - Machines à scies circulaires - Partie 12: Tronçonneuses pendulaires
Sicherheit von Holzbearbeitungsmaschinen - Kreissägemaschinen - Teil 12: PendelkreissägemaschinenThis European Standard was approved by CEN on 21 September 2013.
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, 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 United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1870-12:2013: ESIST EN 1870-12:2014



EN 1870-12:2013 (E) 2 Contents Page Foreword .4 Introduction .6 1 Scope .7 2 Normative references .7 3 Terms and definitions .9 4 List of significant hazards . 11 5 Safety requirements and/or measures . 14 5.1 General . 14 5.2 Controls . 14 5.2.1 General . 14 5.2.2 Position of controls . 15 5.2.3 Starting . 17 5.2.4 Normal stopping . 18 5.2.5 Emergency stop . 19 5.2.6 Workpiece positioning . 19 5.2.7 Mode selection . 19 5.2.8 Failure of the power supply . 20 5.2.9 Failure of the control circuits . 20 5.3 Protection against mechanical hazards . 20 5.3.1 Stability . 20 5.3.2 Risk of break up during operation . 21 5.3.3 Saw blade fixing and spindle design . 21 5.3.4 Braking . 22 5.3.5 Measures to minimise the possibility or effect of ejection . 23 5.3.6 Workpiece supports and guides . 23 5.3.7 Prevention of access to moving parts . 25 5.3.8 Clamping devices . 29 5.4 Protection against non-mechanical hazards . 29 5.4.1 Fire . 29 5.4.2 Noise . 30 5.4.3 Emission of chips and dust . 31 5.4.4 Electricity . 31 5.4.5 Ergonomics and handling . 32 5.4.6 Pneumatics . 32 5.4.7 Hydraulics . 33 5.4.8 Electromagnetic compatibility . 33 5.4.9 Laser . 33 5.4.10 Static electricity . 33 5.4.11 Errors of Fitting . 33 5.4.12 Supply disconnection (Isolation) . 33 5.4.13 Maintenance . 34 6 Information for use . 34 6.1 General . 34 6.2 Warning devices . 34 6.3 Marking . 35 6.4 Instruction handbook . 35 Annex A (normative)
Impact test method for guards . 39 A.1 General . 39 SIST EN 1870-12:2014



EN 1870-12:2013 (E) 3 A.2 Test method . 39 A.2.1 Preliminary remarks . 39 A.2.2 Testing equipment . 39 A.2.3 Projectile for guards . 39 A.2.4 Sampling. 39 A.2.5 Test procedure . 40 A.3 Results . 40 A.4 Assessment . 40 A.5 Test report . 40 A.6 Test equipment for impact test . 40 Annex B (normative)
Braking tests . 42 B.1 Conditions for all tests . 42 B.2 Tests . 42 B.2.1 Run-up time . 42 B.2.2 Un-braked run-down time . 42 B.2.3 Braked run-down time . 42 Annex C (normative)
Dimensional tolerances of saw spindles . 43 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC . 44 Bibliography . 45
SIST EN 1870-12:2014



EN 1870-12:2013 (E) 4 Foreword This document (EN 1870-12:2013) has been prepared by Technical Committee CEN/TC 142 “Woodworking machines - Safety”, the secretariat of which is held by UNI. 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 April 2014 and conflicting national standards shall be withdrawn at the latest by April 2014. 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 1870-12:2003+A1:2009. 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 the Machinery Directive. For relationship with EU Directive, see informative Annex ZA, which is an integral part of this document. EN 1870 Safety of woodworking machines — Circular sawing machines consists of the following parts: Part 1: Circular saw benches (with and without sliding table), dimension saws and building site saws Part 3: Down cutting cross-cut saws and dual purpose down cutting cross-cut saws/circular saw benches Part 4: Multi blade rip sawing machines with manual loading and/or unloading Part 5: Circular saw benches/up-cutting cross-cut sawing machines Part 6: Circular sawing machines for firewood and dual purpose circular sawing machines for firewood/circular saw benches, with manual loading and/or unloading Part 7: Single blade log sawing machines with integrated feed table and manual loading and/or unloading Part 8: Single blade edging circular rip sawing machines with power driven saw unit and manual loading and/or unloading Part 9: Double blade circular sawing machines for cross-cutting with integrated feed and with manual loading and/or unloading Part 10: Single blade automatic and semi-automatic up-cutting cross-cut sawing machines Part 11: Semi-automatic horizontal cross-cut sawing machines with one saw unit (radial arm saws) Part 12: Pendulum cross-cut sawing machines Part 13: Horizontal beam panel sawing machines Part 14: Vertical panel sawing machines Part 15: Multi blade cross-cut sawing machines with integrated feed of the workpiece and manual loading and/or unloading Part 16: Double mitre sawing machines for V-cutting SIST EN 1870-12:2014



EN 1870-12:2013 (E) 5 Part 17: Manual horizontal cutting cross-cut sawing machines with one saw unit (manual radial arm saws) Part 18: Dimension saws
Part 19: Circular saw benches (with and without sliding table) and building site saws The following technical modifications have been introduced during the revision:  deletion of automatic machines;  deletion of displaceable machines;  introduction of PL;  more precise requirements for access for saw blade change;  more precise requirements for braking;  addition of provisions to prevent saw unit accelerating or lifting-up during cutting. Organisations contributing to the preparation of this European Standard include European Committee of Woodworking Machinery Manufacturers Association "EUMABOIS". The European Standards produced by CEN/TC 142 are particular to woodworking machines and complement the relevant A and B Standards on the subject of general safety (see introduction of EN ISO 12100:2010 for a description of A, B and C standards). According to the CEN/CENELEC Internal Regulations, the national standards organisations 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 1870-12:2014



EN 1870-12:2013 (E) 6 Introduction This document has been prepared to be a harmonised standard to provide one means of conforming to the essential safety requirements of the Machinery Directive, and associated EFTA regulations. This document is a type "C“ standard as defined in EN ISO 12100:2010. The machinery concerned and the extent to which hazards, hazardous situations and 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 C type standard take precedence over the provisions of other standards, for machines that have been designed and built according to the provisions of this type C standard. The requirements of this document are directed to manufacturers and their authorised representatives of pendulum cross-cut sawing machines. It is also useful for designers.
This document also includes information which can be provided by the manufacturer to the user. Common requirements for tooling are given in EN 847-1:2005+A1:2007. SIST EN 1870-12:2014



EN 1870-12:2013 (E) 7 1 Scope This European Standard deals with all significant hazards, hazardous situations and events as listed in Clause 4 which are relevant to pendulum cross-cut sawing, herein after referred to as 'machines', designed to cut solid wood, chipboard, fibreboard, plywood and also these materials when covered with plastic edging and/or plastic/light alloy laminates when they are used as intended and under the conditions foreseen by the manufacturer including reasonably foreseeable misuse. This European Standard does not apply to: a) machines for cross cutting logs; b) machines where the saw unit can be rotated about a horizontal axis. NOTE
The requirements of this European Standard apply to all machines whatever their method of control e.g. electromechanical and/or electronic. This European Standard is primarily directed at machines which are manufactured after the date of its publication as EN. 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 574:1996+A1:2008, Safety of machinery — Two-hand control devices — Functional aspects — Principles for design EN 614-1:2006+A1:2009, Safety of machinery — Ergonomic design principles — Part 1: Terminology and general principles EN 847-1:2005+A1:2007, Tools for woodworking — Safety requirements — Part 1: Milling tools, circular saw blades EN 894-1:1997+A1:2008, Safety of machinery — Ergonomics requirements for the design of displays and control actuators — Part 1: General principles for human interactions with displays and control actuators EN 894-2:1997+A1:2008, Safety of machinery — Ergonomics requirements for the design of displays and control actuators — Part 2: Displays EN 894-3:2000+A1:2008, Safety of machinery — Ergonomics requirements for the design of displays and control actuators — Part 3: Control actuators EN 1005-1:2001+A1:2008, Safety of machinery — Human physical performance — Part 1: Terms and definitions EN 1005-2:2003+A1:2008, Safety of machinery — Human physical performance — Part 2: Manual handling of machinery and component parts of machinery EN 1005-3:2002+A1:2008, Safety of machinery — Human physical performance — Part 3: Recommended force limits for machinery operation EN 1005-4:2005+A1:2008, Safety of machinery — Human physical performance — Part 4: Evaluation of working postures and movements in relation to machinery SIST EN 1870-12:2014



EN 1870-12:2013 (E) 8 EN 1037:1995+A1:2008, Safety of machinery — Prevention of unexpected start-up EN 1088:1995+A2:2008, Safety of machinery — Interlocking devices associated with guards — Principles for design and selection EN 50370-1:2005, Electromagnetic compatibility (EMC) — Product family standard for machine-tools — Part 1: Emission EN 50370-2:2003, Electromagnetic compatibility (EMC) — Product family standard for machine-tools — Part 2: Immunity EN 60204-1:2006, Safety of machinery — Electrical equipment of machines — Part 1: General requirements (IEC 60204-1:2005, modified) EN 60439-1:19991), Low-voltage switchgear and controlgear assemblies — Part 1: Type-tested and partially type-tested assemblies (IEC 60439-1:1999)
EN 60529:19912), Degrees of protection provided by enclosures (IP code) (IEC 60529:1989) EN 60825-1:2007, Safety of laser products — Part 1: Equipment classification and requirements (IEC 60825-1:2007)
EN 61310-1:2008, Safety of machinery — Indication, marking and actuation — Part 1: Requirements for visual, acoustic and tactile signals (IEC 61310-1:2007)
CLC/TS 61496-2:2006, Safety of machinery — Electrosensitive protective equipment — Part 2: Particular requirements for equipment using active opto-electronic protective devices (AOPDs) (IEC 61496-2:2006)
EN 61800-5-2:2007, Adjustable speed electrical power drive systems – Part 5-2: Safety requirements – Functional (IEC 61800-5-2:2007) EN ISO 3743-1:2010, Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Engineering methods for small, moveable sources in reverberant fields — Part 1: Comparison method for hard-walled test room (ISO 3743-1:2010) EN ISO 3743-2:2009, Acoustics — Determination of sound power levels of noise sources using sound pressure — Engineering methods for small, moveable sources in reverberant fields — Part 2: Methods for special reverberation test rooms (ISO 3743-2:1994) 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 3745:2012, Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Precision methods for anechoic and hemi-anechoïc rooms (ISO 3745:2012) EN ISO 3746:2010, Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Survey method using an enveloping measurement surface over a reflecting plane (ISO 3746:2010) EN ISO 4413:2010, Hydraulic fluid power — General rules and safety requirements for systems and their components (ISO 4413:2010)
1) EN 60439-1:1999 is impacted by EN 60439-1:1999/A1:2004. 2) EN 60529:1991 is impacted by EN 60529:1991/A1:2000. SIST EN 1870-12:2014



EN 1870-12:2013 (E) 9 EN ISO 4414:2010, Pneumatic fluid power — General rules and safety requirements for systems and their components (ISO 4414:2010) EN ISO 4871:2009, Acoustics — Declaration and verification of noise emission values of machinery and equipment (ISO 4871:1996) EN ISO 9614-1:2009, Acoustics — Determination of sound power levels of noise sources using sound intensity – Part 1: Measurements at discrete points (ISO 9614-1:1993) EN ISO 11202:2010, Acoustics — Noise emitted by machinery and equipment — Determination of emission sound pressure levels at a work station and at other specified positions applying approximate environmental corrections (ISO 11202:2010) 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 11688-1:2009, Acoustics — Recommended practice for the design of low-noise machinery and equipment – Part 1: Planning (ISO/TR 11688-1:1995) EN ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk reduction (ISO 12100:2010) EN ISO 13849-1:2008, Safety of machinery — Safety-related parts of control systems — Part 1: General principles for design (ISO 13849-1:2006)
EN ISO 13850:2008, Safety of machinery — Emergency stop — Principles for design (ISO 13850:2006)
EN ISO 13856-1:2013, Safety of machinery — Pressure-sensitive protective devices — Part 1: General principles for design and testing of pressure-sensitive mats and pressure-sensitive floors (ISO 13856-1:2013) EN ISO 13856-2:2013, Safety of machinery — Pressure-sensitive protective devices — Part 2: General principles for design and testing of pressure-sensitive edges and pressure-sensitive bars (ISO 13856-2:2013) EN ISO 13857:2008, Safety of machinery — Safety distances to prevent hazard zones being reached by upper and lower limbs (ISO 13857:2008)
ISO 7960:1995, Airborne noise emitted by machine tools — Operating conditions for woodworking machines HD 22.1 S4:2002, Cables of rated voltages up to and including 450/750 V and having cross-linked insulation — Part 1: General requirements 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 cross-cutting operation of cutting across the grain of a wooden workpiece 3.2 pendulum cross-cut sawing machine machine to carry out cross cuts by moving the saw unit for the cutting stroke across the work piece manually or by integrated feed and after the cut back to its starting (rest) position
SIST EN 1870-12:2014



EN 1870-12:2013 (E) 10
Key 1 stroke Figure 1 — Example of a pendulum cross-cut sawing machine 3.3 manual pendulum cross-cut sawing machine machine to carry out cross cuts by moving the saw unit for the cutting stroke manually and where the work piece has to be positioned manually at the fence 3.4 semi-automatic pendulum cross-cut sawing machine machine to carry out cross cuts with integrated feed, by loading and/or unloading the work piece manually and positioning manually the work piece for cutting to length
3.5 stationary machine machine designed to be located on or fixed to the floor or other parts of the structure of the premises and to be stationary during use 3.6
displaceable machine machine which is located on the floor, stationary during use and equipped with a device, normally wheels, which allow it to be moved between locations 3.7 machine actuator power mechanism used to effect motion of the machine 3.8 hand feed on pendulum cross-cut sawing machines manual holding and/or guiding of the workpiece or the manual guiding of the saw unit with the saw blade 3.9 integrated feed feed mechanism for the workpiece or tool which is integrated with the machine and where the workpiece or SIST EN 1870-12:2014



EN 1870-12:2013 (E) 11 machine element with incorporated tool are held and controlled mechanically during the machining operation 3.10 cutting area of the saw blade area where the saw blade can be involved in the cutting process 3.11 non-cutting area of the saw blade area of the saw blade where the saw blade is not involved in the cutting process 3.12 cutting area of a pendulum cross-cut sawing machine area in front of the fence which is limited by the machine to carry out the cross cuts by using a saw blade with the maximum diameter for which the machine is designed
3.13 run-up time time elapsed from the actuation of the start control device until the spindle reaches the intended speed 3.14 un-braked run-down time time elapsed from the actuation of the stop control, but not the braking device (if fitted) up to spindle standstill 3.15 braked run-down time time elapsed from the actuation of the stop control and the brake device up to spindle standstill 3.16 manual loading of power fed machines operation where the workpiece is presented by the operator directly to the machine integrated feed, e.g. rotating feed rollers, travelling table or reciprocating carriage; i.e. for which there is no intermediate loading device to receive and transfer the workpiece from the operator to the integrated feed 3.17 manual unloading of power fed machines operation where the workpiece is removed by the operator directly from the machine outfeed; i.e. for which there is no intermediate unloading device to receive and transfer the workpiece from the machine outfeed to the operator 3.18 information from the supplier statements, sales literature, leaflets or other documents where a manufacturer (supplier) declares either the characteristics of e.g. a material or product or the compliance of the material or product to a relevant standard 3.19 performance level (PL) discrete level used to specify the ability of safety-related parts of control systems to perform a safety function under foreseeable condition
[SOURCE: EN ISO 13849-1:2008, 3.1.23] 4 List of significant hazards This clause contains all significant hazards, hazardous situations and events (see EN ISO 12100:2010), identified by risk assessment as significant for the machines as defined in the scope and which require action to eliminate or reduce the risk. This document deals with thes
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