SIST EN 1870-8:2013

Safety of woodworking machines - Circular sawing machines - Part 8: Single blade edging circular rip sawing machines with power driven saw unit and manual loading and/or unloading

This European Standard deals with all significant hazards, hazardous situations and events as listed in Clause 4 which are relevant to single blade edging circular rip sawing machines with power driven saw unit and manual loading and/or unloading, hereinafter referred to as “machines”, designed to cut solid wood, chipboard, fibreboard and plywood when they are used as intended and under the conditions foreseen by the manufacturer including reasonably foreseeable misuse. This document applies to machines where the workpiece is stationary, the vertical and horizontal movements of the saw unit are power driven, and where the machine is provided with workpiece clamping. The workpiece may or may not be clamped during cutting. This document does not apply to machines:
- where the workpiece is fed to the saw blade during cutting;
- designed for cutting veneers;
- provided with a device situated behind the line of cut, which moves in a direction parallel to the line of cut, for automatically unloading the workpiece during the return of the saw unit to the rest position. This document is not applicable to machines manufactured before its date of publication as EN.

Sicherheit von Holzbearbeitungsmaschinen - Kreissägemaschinen - Teil 8: Einblattbesäum- und Leistenkreissägemaschinen mit kraftbetätigtem Sägeaggregat und Handbeschickung und/oder Handentnahme

Dieses Dokument behandelt alle im Abschnitt 4 aufgeführten signifikanten Gefährdungen, Gefährdungs-situationen und Gefährdungsereignisse, die auf Einblattbesäum- und Leistenkreissägemaschinen mit kraftbetätigtem Sägeaggregat und Handbeschickung und/oder Handentnahme zutreffen, im Folgenden als „Maschinen“ bezeichnet, die konstruiert sind zum Schneiden von Massivholz, Spanplatten, Faserplatten und Sperrholz, wenn sie bestimmungsgemäß und entsprechend den vom Hersteller vorgesehen Bedingungen einschließlich vernünftigerweise vorhersehbarer Fehlanwendung verwendet werden.
Dieses Dokument behandelt bei computergesteuerten (CNC) Maschinen nicht die im Zusammenhang mit der elektromagnetischen Verträglichkeit (EMV) bestehenden Gefährdungen.
Dieses Dokument gilt für Maschinen, bei denen das Werkstück fest liegt, die senkrechten und waagrechten Bewegungen des Sägeaggregates kraftbetrieben sind, und, sofern die Maschine mit einer Werkstückspanneinrichtung ausgerüstet ist, das Werkstück während des Schnittes gespannt oder nicht gespannt sein kann.
Dieses Dokument gilt nicht für Maschinen:
-   bei denen während des Sägens das Werkstück zum Sägeblatt vorgeschoben wird;
-   die speziell für das Schneiden von Furnieren konstruiert sind;
-   die hinter der Schnittlinie mit einer Einrichtung ausgerüstet sind, die sich in einer Richtung parallel zur Schnittlinie bewegt, um dadurch während des Rücklaufs des Sägeaggregates in die Ruhestellung das Werkstück automatisch auszufördern.
Dieses Dokument ist in erster Linie auf Maschinen anzuwenden, die nach dem Datum seiner Veröffentlichung als EN hergestellt werden.

Sécurité des machines pour le travail du bois - Machines à scies circulaires - Partie 8: Déligneuses mono-lames à déplacement mécanisé du groupe de sciage et à chargement et/ou déchargement manuel

Le présent document traite des phénomènes dangereux, des situations et des événements dangereux significatifs tels qu’énumérés à l'Article 4 applicables aux déligneuses mono-lames à déplacement mécanisé du groupe de sciage à chargement et/ou déchargement manuel, (ci-après désignées « machines »), conçues pour la coupe de bois massif, de panneaux de particules, de panneaux de fibres et de contreplaqué lorsqu’elles sont utilisées normalement et dans les conditions prévues par le fabricant, incluant une mauvaise utilisation raisonnablement prévisible.
Le présent document ne couvre pas les phénomènes dangereux liés à la compatibilité électromagnétique (CEM) pour les machines à commande numérique (CNC).
Le présent document s'applique aux machines sur lesquelles la pièce à travailler est fixe et où les déplacements verticaux et horizontaux de la scie sont mécanisés. Lorsque ces machines sont munies d'un dispositif de bridage des pièces, la pièce peut ou non être bridée durant la coupe.
Le présent document n'est pas applicable aux machines :
-   sur lesquelles la pièce est poussée vers la lame durant la coupe ;
-   conçues spécifiquement pour la coupe des feuilles de placage ;
-   équipées d'un dispositif situé derrière la ligne de coupe, se déplaçant parallèlement à la ligne de coupe pour le déchargement automatique de pièces pendant le retour du groupe de sciage à sa position de repos.
Le présent document est applicable avant tout aux machines fabriquées après la date de sa publication comme norme EN.

Varnost lesnoobdelovalnih strojev - Krožne žage - 8. del: Enolistne obrezovalne krožne žage s pogonsko enoto in ročnim dodajanjem in/ali odvzemanjem

Ta evropski standard opisuje vse večje nevarnosti, nevarne razmere in dogodke iz točke 4 v zvezi z enolistnimi obrezovalnimi krožnimi žagami s pogonsko enoto in ročnim podajanjem in/ali odvzemom (v nadaljevanju: »stroji«), ki so namenjeni rezanju polnega lesa, ivernih plošč, vlaknenih plošč in vezanih plošč ter se uporabljajo v skladu z namenom in pod pogoji, ki jih je predvidel proizvajalec, vključno z razumno predvideno nepravilno uporabo. Ta dokument se uporablja za naprave, kjer obdelovanec miruje, krožna žaga se navpično in vodoravno premika s pogonsko enoto, obdelovanec pa se lahko vpne v napravo. Med rezanjem se obdelovanec lahko vpne ali se ne vpne. Ta dokument se ne uporablja za naprave:
– kjer se obdelovanec med rezanjem podaja žagi;
– ki so izdelane za rezanje furnirja;
– ki imajo napravo za linijo rezanja, ki se premika paralelno z linijo rezanja, obdelovanec pa se med vračanjem žage v položaj mirovanja samodejno odvzema. Ta dokument se ne uporablja za stroje, ki so bili izdelani pred objavo standarda EN.

General Information

• Status: Published
• Public Enquiry End Date: 24-Feb-2011
• Publication Date: 26-Dec-2012
• ICS: 25.080.60 - Sawing machines
• ICS: 79.120.10 - Woodworking machines
• Technical Committee: VSN - Safety of machinery
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 26-Oct-2012
• Due Date: 31-Dec-2012
• Completion Date: 27-Dec-2012
• 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: EN 1870-8:2012 - Safety of woodworking machines - Circular sawing machines - Part 8: Single blade edging circular rip sawing machines with power driven saw unit and manual loading and/or unloading

Relations

• Replaces: SIST EN 1870-8:2002+A1:2009 - Safety of woodworking machines - Circular sawing machines - Part 8: Single blade edging circular rip sawing machines with power driven saw unit and manual loading and/or unloading
• Effective Date: 01-Jan-2013
• Replaces: SIST EN 1870-8:2002+A1:2009 - Safety of woodworking machines - Circular sawing machines - Part 8: Single blade edging circular rip sawing machines with power driven saw unit and manual loading and/or unloading
• Effective Date: 08-Jun-2022

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.MHPSicherheit von Holzbearbeitungsmaschinen - Kreissägemaschinen - Teil 8: Einblattbesäum- und Leistenkreissägemaschinen mit kraftbetätigtem Sägeaggregat und Handbeschickung und/oder HandentnahmeSécurité des machines pour le travail du bois - Machines à scies circulaires - Partie 8: Déligneuses mono-lames à déplacement mécanisé du groupe de sciage et à chargement et/ou déchargement manuelSafety of woodworking machines - Circular sawing machines - Part 8: Single blade edging circular rip sawing machines with power driven saw unit and manual loading and/or unloading79.120.10Lesnoobdelovalni strojiWoodworking machines25.080.60Strojne žageSawing machinesICS:Ta slovenski standard je istoveten z:EN 1870-8:2012SIST EN 1870-8:2013en,fr,de01-januar-2013SIST EN 1870-8:2013SLOVENSKI
STANDARDSIST EN 1870-8:2002+A1:20091DGRPHãþD



SIST EN 1870-8:2013



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1870-8
November 2012 ICS 79.120.10 Supersedes EN 1870-8:2001+A1:2009English Version
Safety of woodworking machines - Circular sawing machines - Part 8: Single blade edging circular rip sawing machines with power driven saw unit and manual loading and/or unloading
Sécurité des machines pour le travail du bois - Machines à scies circulaires - Partie 8: Déligneuses mono-lames à déplacement mécanisé du groupe de sciage et à chargement et/ou déchargement manuel
Sicherheit von Holzbearbeitungsmaschinen - Kreissägemaschinen - Teil 8: Einblattbesäum- und Leistenkreissägemaschinen mit kraftbetätigtem Sägeaggregat und Handbeschickung und/oder Handentnahme This European Standard was approved by CEN on 1 September 2012.
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
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1870-8:2012: ESIST EN 1870-8:2013



EN 1870-8:2012 (E) 2 Contents Page Foreword .4Introduction .61Scope .72Normative references .73Terms and definitions .94List of significant hazards . 135Safety requirements and/or measures . 165.1General . 165.2Controls . 165.2.1Safety and reliability of control systems . 165.2.2Position of controls . 175.2.3Starting . 175.2.4Normal stopping . 185.2.5Emergency stop . 195.2.6Integrated feed . 195.2.7Saw blade changing . 205.2.8Speed control . 205.2.9Control duplication . 205.2.10Failure of the power supply . 205.2.11Powered movement of the saw blade and/or fences . 215.3Protection against mechanical hazards . 225.3.1Stability . 225.3.2Risk of break-up during operation . 225.3.3Tool holder and tool design . 235.3.4Braking . 245.3.5Devices to minimise the possibility or the effect of ejection . 255.3.6Workpiece supports and guides . 305.3.7Prevention of access to moving parts . 315.3.8Workpiece clamping . 335.3.9Safety appliances. 355.4Protection against non-mechanical hazards . 355.4.1Fire . 355.4.2Noise . 355.4.3Emission of chips and dust . 365.4.4Electricity . 375.4.5Ergonomics and handling . 375.4.6Lighting . 385.4.7Pneumatic . 385.4.8Hydraulic . 385.4.9Electromagnetic compatibility . 385.4.10Laser . 385.4.11Errors of fitting . 395.4.12Isolation . 395.4.13Maintenance . 396Information for use . 406.1General . 406.2Warnings and warning devices . 406.3Marking . 40SIST EN 1870-8:2013



EN 1870-8:2012 (E) 3 6.3.1Marking of riving knives . 406.3.2Marking of machine . 406.4Instruction handbook . 41Annex A (normative)
Saw spindle dimensional tolerances . 45Annex B (normative)
Riving knife mounting strength test . 46Annex C (normative)
Lateral stability riving knife test . 47Annex D (normative)
Sectional safety curtain material rigidity test . 48Annex E (normative)
Operating conditions for noise emission measurement . 49E.1General . 49E.2Noise measurements . 49E.3General data sheet . 51Annex F (normative)
Braking tests . 55F.1Conditions for all tests . 55F.2Tests . 55F.2.1Un-braked run-down time . 55F.2.2Braked run-down time . 55Annex G (normative)
Impact test method for guards . 56G.1General . 56G.2Test method . 56G.2.1Preliminary remarks . 56G.2.2Testing equipment . 56G.2.3Projectile for guards . 56G.2.4Sampling. 56G.2.5Test procedure . 56G.3Results . 57G.4Assessment . 57G.5Test report . 57G.6Test equipment for impact test . 57Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC . 59Bibliography . 60 SIST EN 1870-8:2013



EN 1870-8:2012 (E) 4 Foreword This document (EN 1870-8:2012) 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 May 2013, and conflicting national standards shall be withdrawn at the latest by May 2013. 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 1870-8:2001+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(s), see informative Annex ZA, which is an integral part of this document. The main modifications to the previous version concern inclusion of performance levels (PL). Organisations contributing to the preparation of this European Standard include European Committee of Woodworking Machinery Manufacturers Association "EUMABOIS". 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: Multiblade rip sawing machines with manual loading and/or unloading;  Part 5: Circular sawbenches/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 (the present document);  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 and 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; SIST EN 1870-8:2013



EN 1870-8:2012 (E) 5  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;  Part 17: Manual horizontal cutting cross-cut sawing machines with one saw unit (manual radial arm saws);  Part 18: Dimension saws (at Formal Vote stage at the time of publication of the present document);  Part 19: Circular saw benches (with and without sliding table) and building site saws (at Enquiry stage at the time of publication of the present document). 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 1870-8:2013



EN 1870-8:2012 (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 covered are indicated in the scope of this document. The requirements of this document are directed to manufacturers and their authorised representatives of single blade edging circular rip sawing machines with power driven saw unit and manual loading and/or unloading. This document is also useful for designers and importers. When provisions of this type C standard are different from those which are stated in type A or B standards, the provisions of this type C standard take precedence over the provisions of other standards, for machines that have been designed and built according to the provisions of this type C standard. This document also includes information to be provided by the manufacturer to the user. Common requirements for tooling are given in EN 847-1:2005+A1:2007. SIST EN 1870-8:2013



EN 1870-8:2012 (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 single blade edging circular rip sawing machines with power driven saw unit and manual loading and/or unloading, hereinafter referred to as “machines”, designed to cut solid wood, chipboard, fibreboard and plywood when they are used as intended and under the conditions foreseen by the manufacturer including reasonably foreseeable misuse.
This document applies to machines where the workpiece is stationary, the vertical and horizontal movements of the saw unit are power driven, and where the machine is provided with workpiece clamping. The workpiece may or may not be clamped during cutting. This document does not apply to machines:  where the workpiece is fed to the saw blade during cutting;  designed for cutting veneers;  provided with a device situated behind the line of cut, which moves in a direction parallel to the line of cut, for automatically unloading the workpiece during the return of the saw unit to the rest position. This document is not applicable to machines manufactured before its date of 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 349:1993+A1:2008, Safety of machinery —Minimum gaps to avoid crushing of parts of the human body EN 614-1:2006+A1:2009, Safety of machinery — Ergonomic design principles — Part 1: Terminology and general principles EN 614-2:2000+A1:2008, Safety of machinery — Ergonomic design principles — Part 2: Interactions between the design of machinery and work tasks 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 SIST EN 1870-8:2013



EN 1870-8:2012 (E) 8 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 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 1837:1999+A1:2009, Safety of machinery — Integral lighting of machines EN 12779:2004+A1:2009, Safety of woodworking machines — Chip and dust extraction systems with fixed installation — Safety related performances and safety requirements 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 60439-1:1999,1) Low-voltage switchgear and controlgear assemblies — Part 1: Type-tested and partially type-tested assemblies (IEC 60439-1:1999) EN 60529:1991,2) 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) EN 61800-5-2:2007, Adjustable speed electrical power drive systems — Part 5-2: Safety requirements — Functional (IEC 61800-5-2:2007) EN ISO 286-2:2010, Geometrical product specifications (GPS) — ISO code system for tolerances on linear sizes — Part 2: Tables of standard tolerance classes and limit deviations for holes and shafts
(ISO 286-2:2010) 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, movable sources in reverberant fields — Part 1: Comparison method for a 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, movable 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 method in an essentially free field over a reflecting plane (ISO 3744:2010)
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 1870-8:2013



EN 1870-8:2012 (E) 9 EN ISO 3745:2009, Acoustics — Determination of sound power levels of noise sources using sound pressure — Precision methods for anechoic and semi-anechoic rooms (ISO 3745:2003) 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) 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: Measurement 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 13857:2008, Safety of machinery — Safety distances to prevent hazard zones being reached by upper and lower limbs (ISO 13857:2008) ISO 79601995, Airborne noise emitted by machine tools — Operating conditions for woodworking machines 3 Terms and definitions For the purpose of this document, the terms and definitions given in EN ISO 12100:2010 and the following apply. NOTE The main parts of manually loaded and/or unloaded single blade edging circular rip sawing machines with power driven saw unit and their terminology are illustrated in Figure 1. SIST EN 1870-8:2013



EN 1870-8:2012 (E) 10
Key
1 sectional safety curtain 2 saw blade in rest position 3 riving knife 4 foot-pedal 5 workpiece end stop 6 workpiece 7 extraction outlet 8 sectional safety curtain support 9 front deterring/impeding device (on machines with raising and lowering of the saw unit at alternative positions) 10 workpiece clamping device (pressure beam) (optional) Figure 1 — Terminology of machine parts 3.1 single blade edging circular rip sawing machines with power driven saw unit and manual loading and/or unloading machine where the workpiece is supported in the horizontal plane during cutting, the saw unit is mounted below the workpiece and the cutting stroke is power driven Note 1 to entry: The saw blade is automatically raised through the slot in the worktable and is retracted from the workpiece for the return stroke. The machine is designed to cut against the feed in a single straight line only (see Figure 1). The machine may have any of the following features: − adjustment of the height of the saw unit; − limitation of the cutting stroke length; − workpiece clamping; SIST EN 1870-8:2013



EN 1870-8:2012 (E) 11 − the facility to vary the feed speed; − powered movement of the fence; − the facility to allow raising and lowering of the saw unit at alternative positions; − the facility for multiple cutting. 3.2 workpiece end stop adjustable end stop to hold the workpiece in the direction of the line of cut
Note 1 to entry: See Figure 1. 3.3 saw unit rest position position to which the saw unit returns at the end of each cutting cycle
Note 1 to entry: See Figure 1. 3.4 sectional safety curtain device to prevent inadvertent access to th
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