Bsi bs en 01218 3 2001 + a1 2009

BRITISH STANDARD

Safety of woodworking
machines — Tenoning
machines —
Part 3: Hand fed tenoning machines
with sliding table for cutting structural
timbers

ICS 79.120.10

12&23<,1*:,7+287%6,3(50,66,21(;&(37$63(50,77('%<&23<5,*+7/$:

BS EN
1218-3:2001
+A1:2009


BS EN 1218-3:2001+A1:2009

National foreword
This British Standard is the UK implementation of
EN 1218-3:2001+A1:2009. It supersedes BS EN 1218-3:2001, which is
withdrawn.
The start and finish of text introduced or altered by amendment is
indicated in the text by tags. Tags indicating changes to CEN text
carry the number of the CEN amendment. For example, text altered by
CEN amendment A1 is indicated by !".
The UK participation in its preparation was entrusted to Technical
Committee MTE/23, Woodworking machines — Safety.
A list of organizations represented on this committee can be obtained

on request to its secretary.
This publication does not purport to include all the necessary
provisions of a contract. Users are responsible for its correct
application.
Compliance with a British Standard cannot confer immunity
from legal obligations.

Amendments/corrigenda issued since publication
This British Standard was
published under the authority
of the Standards Policy and
Strategy Committee on
19 March 2002

© BSI 2009

ISBN 978 0 580 62153 6

Date

Comments

31 August 2009

Implementation of CEN amendment A1:2009


EUROPEAN STANDARD

EN 1218-3:2001+A1

NORME EUROPÉENNE
EUROPÄISCHE NORM

June 2009

ICS 79.120.10

Supersedes EN 1218-3:2001

English Version

Safety of woodworking machines - Tenoning machines - Part 3:
Hand fed tenoning machines with sliding table for cutting
structural timbers
Sécurité des machines à bois - Tenonneuses - Partie 3:
Machines à avance manuelle et à table roulante pour la
coupe des éléments de charpente de toit en bois

Sicherheit von Holzbearbeitungsmaschinen Zapfenschneid- und Schlitzmaschinen - Teil 3:
Abbundmaschinen mit von Hand bewegtem Schiebetisch

This European Standard was approved by CEN on 30 September 2001 and includes Amendment 1 approved by CEN on 21 May 2009.
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 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 respons bility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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

© 2009 CEN

All rights of exploitation in any form and by any means reserved
worldwide for CEN national Members.

Ref. No. EN 1218-3:2001+A1:2009: E


BS EN 1218-3:2001+A1:2009
EN 1218-3:2001+A1:2009 (E)

Contents
Foreword ...................................................................................................................................................................... 4
0

Introduction .................................................................................................................................................... 5

1

Scope .............................................................................................................................................................. 5

2

Normative references .................................................................................................................................... 5

3

Terms and definitions ................................................................................................................................... 8

3.1

Terms .............................................................................................................................................................. 8

3.2

Definitions ...................................................................................................................................................... 8

4

!List of significant hazards"
" ................................................................................................................ 11

5

Safety requirements and/or measures ...................................................................................................... 14

5.1

Controls ........................................................................................................................................................ 14

5.1.1

Safety and reliability of control systems ................................................................................................... 14

5.1.2

Position of controls ..................................................................................................................................... 15

5.1.3

Starting ......................................................................................................................................................... 15

5.1.4

Normal stopping .......................................................................................................................................... 15

5.1.5

Emergency stop ........................................................................................................................................... 16

5.1.6

Failure of the power supply ........................................................................................................................ 16

5.1.7

Failure of the control circuits ..................................................................................................................... 16

5.2

Protection against mechanical hazards .................................................................................................... 16

5.2.1

Stability ......................................................................................................................................................... 16

5.2.2

Risk of break-up during operation ............................................................................................................. 17

5.2.3

Tool holder and tool design........................................................................................................................ 17

5.2.4

Braking .......................................................................................................................................................... 19

5.2.5

Devices to minimise the possibility or the effect of ejection .................................................................. 20

5.2.6

Workpiece supports and guides ................................................................................................................ 27

5.2.7

Prevention of access to moving parts ....................................................................................................... 27

5.2.8

Clamping devices ........................................................................................................................................ 29

5.3

Protection against non-mechanical hazards ............................................................................................ 29

5.3.1

!Fire"
" ...................................................................................................................................................... 29

5.3.2

Noise ............................................................................................................................................................. 29

5.3.3

Emission of chips, dust and gases ............................................................................................................ 30

5.3.4

Electricity ...................................................................................................................................................... 30

5.3.5

Ergonomics and handling ........................................................................................................................... 31

5.3.6

Lighting ......................................................................................................................................................... 31

5.3.7

Pneumatic ..................................................................................................................................................... 32

2


BS EN 1218-3:2001+A1:2009
EN 1218-3:2001+A1:2009 (E)
5.3.8

Hydraulic ...................................................................................................................................................... 32

5.3.9

Heat ............................................................................................................................................................... 32

5.3.10 Substances .................................................................................................................................................. 32
5.3.11 Vibration ....................................................................................................................................................... 32
5.3.12 !Electromagnetic compatibility"
" ........................................................................................................ 32
5.3.13 Laser ............................................................................................................................................................. 32
5.3.14 Static electricity ........................................................................................................................................... 33
5.3.15 Errors of fitting ............................................................................................................................................ 33
5.3.16 Isolation ........................................................................................................................................................ 33
5.3.17 Maintenance ................................................................................................................................................. 33
6

Information for use ...................................................................................................................................... 33

6.1

Warning devices .......................................................................................................................................... 33

6.2

Marking ......................................................................................................................................................... 33

6.3

Instruction handbook .................................................................................................................................. 34

Annex A (normative) !Displaceable machines stability test"
" ....................................................................... 38
A.1
Tilting Test ................................................................................................................................................... 38
A.2
Displacement test ........................................................................................................................................ 38
Annex B (normative) Saw spindle dimensional tolerances................................................................................. 40
Annex C (normative) Riving knife lateral stability test ......................................................................................... 41
Annex D (normative) Operating conditions for noise emission measurement .................................................. 42
D.1
General ......................................................................................................................................................... 42
D.2
Noise measurements .................................................................................................................................. 42
Annex ZA (informative) !Relationship between this European Standard and the Essential
Requirements of EU Directive 98/37/EC"
" .............................................................................................. 49

Annex ZB (informative) !Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC"
" .......................................................................................... 50
Bibliography .............................................................................................................................................................. 51

3


BS EN 1218-3:2001+A1:2009
EN 1218-3:2001+A1:2009 (E)

Foreword
This document (EN 1218-3:2001+A1:2009) 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 December 2009, and conflicting national standards shall be withdrawn
at the latest by December 2009.
This document includes Amendment 1, approved by CEN on 2009-05-21.
This document supersedes EN 1218-3:2001.
The start and finish of text introduced or altered by amendment is indicated in the text by tags ! ".
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 EU Directive(s).
!For relationship with EU Directive(s), see informative Annexes ZA and ZB, which are integral parts of this
document."
!EN 1218, Safety of woodworking machines — Tenoning machines consists of the following parts:
Part 1: Single end tenoning machines with sliding table
Part 2: Double end tenoning and/or profiling machines fed by chain or chains
Part 3: Hand fed tenoning machines with sliding table for cutting structural timbers
Part 4: Edge banding machines fed by chain(s)
Part 5: One side profiling machines with fixed table and feed rollers or fed by chain"

Organisations contributing to the preparation of this European Standard include European Committee of
Woodworking Machinery Manufacturers Association "EUMABOIS".
!The Annexes A, B, C and D are normative and Annexes E, ZA and ZB are informative."
This standard includes a Bibliography.
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 12100-1:2003" for a description of A, B and C standards).
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, 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.

4


BS EN 1218-3:2001+A1:2009
EN 1218-3:2001+A1:2009 (E)

0

Introduction

This European Standard 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
European Standard is a type "C“ standard as defined in !EN ISO 12100-1:2003".
The extent to which hazards are covered is indicated in the scope of this European Standard.
The requirements of this European Standard concern designers, manufacturers, suppliers and importers of
hand fed tenoning machines with sliding table for cutting structural timbers.
This European Standard also includes information to be provided by the manufacturer to the user.

Common requirements for tooling are given in !EN 847-1:2005".

1

Scope

!This document deals with all the significant hazards, hazardous situations and events as listed in Clause 4
which are relevant to hand fed tenoning machines with sliding table for cutting structural timbers, hereinafter
referred to as "machines". "
This European Standard does not apply to:


machines where the tenon is produced by means of milling tools;



machines designed for a tool spindle speed exceeding 6000 min ;



machines where the cuts are made on both ends of the workpiece during one cycle;



combined machines used for tenoning (see !EN 940:2008");



the tenoning attachment on a vertical spindle moulding machine (see !EN 848-1:2007").

-1

!deleted text"
For Computer Numerically Controlled (CNC) machines this European Standard does not cover hazards
related to Electro-Magnetic Compatibility (EMC).
This European Standard is primarily directed to machines which are manufactured after the date of issue of
this European Standard.

2

Normative references

!The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies."
!deleted text"
!EN 614-1:2006, Safety of machinery — Ergonomic design principles — Part 1: Terminology and general
principles"

5


BS EN 1218-3:2001+A1:2009
EN 1218-3:2001+A1:2009 (E)
!EN 847-1:2005, Tools for woodworking — Safety requirements — Part 1: Milling tools, circular saw
blades"
!EN 894-1:1997, 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, Safety of machinery — Ergonomics requirements for the design of displays and control
actuators — Part 2: Displays

EN 894-3:2000, Safety of machinery — Ergonomics requirements for the design of displays and control
actuators — Part 3: Control actuators"
!deleted text"
EN 982:1996, Safety requirements for fluid power systems and components – Hydraulics
EN 983:1996, Safety requirements for fluid power systems and components – Pneumatics
!EN 1005-1:2001, Safety of machinery — Human physical performance — Part 1: Terms and definitions
EN 1005-2:2003, Safety of machinery — Human physical performance — Part 2: Manual handling of
machinery and component parts of machinery
EN 1005-3:2002, Safety of machinery — Human physical performance — Part 3: Recommended force limits
for machinery operation
EN 1005-4:2005, Safety of machinery — Human physical performance — Part 4: Evaluation of working
postures and movements in relation to machinery
EN 1037:1995, Safety of machinery — Prevention of unexpected start-up"
EN 1088:1995, 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 60439-1:1999, Low-voltage switchgear and controlgear assemblies — Part 1: Type-tested and partially
type-tested assemblies (IEC 60439-1:1999)"
EN 60529:1991, Degree 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 60947-4-1:2001", Low voltage switchgear and control gear — Part 4: Contactors and motor starters
- Section 1: Electromechanical contactors and motor starters !(IEC 60947-4-1:2000)"
!EN 60947-5-1:2004", Low voltage switchgear and control gear — Part 5: Control circuit devices and
switching elements — Section 1: Electromechanical control circuit devices !(IEC 60947-5-1:2003)"

6


BS EN 1218-3:2001+A1:2009
EN 1218-3:2001+A1:2009 (E)
!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 ISO 3743-1:1995, Acoustics — Determination of sound power levels of noise sources — Engineering
methods for small, moveable sources in reverberant fields — Part 1: Comparison method for hard wall test
rooms (ISO 3743-1:1994)
EN ISO 3743-2:1996, Acoustics — Determination of sound power levels of noise sources — Engineering
methods for small, moveable sources in reverberant fields — Part 2: Method for special reverberation test
rooms (ISO 3743-2:1994)
EN ISO 3744:1995, Acoustics — Determination of sound power levels of noise sources using sound pressure
engineering methods in an essentially free field over a reflecting plane (ISO 3744: 1994)
!EN ISO 3745:2003, 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 3746:1995, Acoustics — Determination of sound power levels of noise sources using sound pressure
— Survey method employing an enveloping measurement surface over a reflecting plane (ISO 3746: 1995)
EN ISO 4871:1996, Acoustics — Determination and verification of noise emission values of machinery and
equipment (ISO 4871:1996)
EN ISO 9614-1:1995, Acoustics — Determination of sound power levels of noise sources using sound
intensity — Part 1: Measurement at discrete points (ISO 9614-1:1993)
EN ISO 11202:1995, Acoustics — Noise emitted by machinery and equipment — Measurement method of
emission sound pressure levels at the workstation and at other specified positions survey method in situ (ISO
11202:1995)
EN ISO 11204:1995, Acoustics — Noise emitted by machinery and equipment — Measurement of emission
sound pressure levels at the workstation and at other specified positions — Method requiring environmental
corrections (ISO 11204:1995)

EN ISO 11688-1:1998, Acoustics — Recommended practice for the design of low noise machinery and
equipment — Part 1: Planning (ISO/TR 11688-1: 1995)
!EN ISO 12100-1:2003, Safety of machinery — Basic concepts, general principles for design — Part 1:
Basic terminology, methodology (ISO 12100-1:2003)"
!EN ISO 12100-2:2003, Safety of machinery — Basic concepts, general principles for design — Part 2:
Technical principles (ISO 12100-2:2003)"
!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)"
ISO 286-2:1988, ISO system of limits and fits — Part 2: Tables of standard tolerance grades and limit
deviations for holes and shafts
!HD 21.1 S4:2002, Cables of rated voltages up to and including 450/750 V and having thermoplastic
insulation — Part 1: General requirements"
!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"

7


BS EN 1218-3:2001+A1:2009
EN 1218-3:2001+A1:2009 (E)
!HD 22.4 S4:2004, Cables of rated voltages up to and including 450/750 V and having crosslinked
insulation — Part 4: Cords and flexible cables"

3

Terms and definitions

For the purposes of this European Standard the following terms and definitions apply.

3.1

Terms

The main parts of the machine and their terminology are illustrated in Figure 1.

Key

NOTE

1
2
3
4
5
6
7

Main saw blade
Horizontal saw blades
Vertical saw blades
Controls
Sliding table guide
Sliding table
Workpiece clamping bridge

This figure is intended only to illustrate terms. For clarity not all necessary guards are shown

Figure 1 — Terminology

3.2

Definitions

3.2.1
hand fed tenoning machine with sliding table for cutting structural timbers
machine designed for the production of cuts, for jointing structural timbers, on one end of a workpiece during
one cycle. The cuts are made by means of saw blade(s) mounted on one or more spindles (see Figure 1)
3.2.2
cuts for jointing structural timber
machined projections including tenons on the end of a workpiece to facilitate the joining of workpieces (see
Figure 2)

8


BS EN 1218-3:2001+A1:2009
EN 1218-3:2001+A1:2009 (E)

Figure 2 — Examples of saw cuts for joining structural timber
3.2.3
hand feed
manual holding and/or manual guiding of the workpiece (or of a machine element incorporating a tool). Hand
feed includes the use of a hand operated carriage on which the workpiece is placed manually or clamped (and
the use of a demountable power feed unit)
NOTE

The words in brackets are not applicable to this machine.

3.2.4
ejection
unexpected movement of the workpiece, parts of it or part of the machine from the machine during processing
3.2.5
run-up time
time elapsed from the actuation of the start control device until the spindle reaches the intended speed
3.2.6
run-down time
time elapsed from the actuation of the stop control device up to spindle standstill

9


BS EN 1218-3:2001+A1:2009
EN 1218-3:2001+A1:2009 (E)
3.2.7
!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
3.2.8
cutting against the feed
when the relative direction of the tool to the workpiece is as illustrated in Figure 3

Key

1
2
3
4

5

Fixed saw blade
Saw blade
Workpiece
Fixed workpiece
Feed direction

Figure 3 — Rotational direction of the tool relative to the workpiece feed during cutting against the
feed
3.2.9
climb cutting
when the relative direction of the tool to the workpiece is as illustrated in Figure 4

10


BS EN 1218-3:2001+A1:2009
EN 1218-3:2001+A1:2009 (E)

Key

1
2
3
4
5

Fixed saw blade
Saw blade

Workpiece
Fixed workpiece
Feed direction

Figure 4 — Rotational direction of the tool relative to the workpiece feed during climb cutting
3.2.10
machine actuator
power mechanism used to effect motion of the machine
3.2.11
!information from the supplier"
"
statements, sales literature, leaflets or other, 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

4

!List of significant hazards"
"

!This clause contains all the significant hazards, hazardous situations and events (see EN 1050:1996) as
far as they are dealt with in this document, 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 these
significant hazards by defining safety requirements and/or measures or by reference to relevant standards.
These hazards are listed in Table 1 in accordance with Annex A of EN 1050:1996.

11


BS EN 1218-3:2001+A1:2009
EN 1218-3:2001+A1:2009 (E)

Table 1 — List of significant hazards
No

Hazards, hazardous situations and
hazardous events

EN ISO 12100
Part 1:
2003

1

Part 2:
2003

Mechanical hazards related to:

a) shape;

- machine parts or work-pieces:
4.2
4.2.1,
4.2.2, 5

b) relative location;

5.2.2, 5.2.3,
5.2.5, 5.2.7,
5.2.8
5.1.2, 5.1.5,

5.1.6, 5.2.5,
5.2.7, 5.2.8
5.2.5

c) mass and stability (potential energy of
elements which may move under the
effect of gravity)
e) mechanical strength.
- accumulation of energy inside the machinery:

5.2.2

f) elastic elements (springs), or

4.2

4.10, 5.5.4

5.2.7

g) liquids and gases under pressure;

4.2

4.10, 5.5.4

5.3.7, 5.3.8

1.1

Crushing hazard

4.2.1

1.2
1.3

Shearing hazard
Cutting or severing hazard

1.4

Entanglement hazard

1.5
1.9

Drawing-in or trapping hazard
High pressure fluid injection or ejection
hazard
Electrical hazards due to:
Contact of persons with live parts (direct
4.3
contact)
Contact of persons with parts which have
4.3
become live under faulty conditions
(indirect contact)
Hazards generated by noise, resulting in:
Hearing loss (deafness), other

4.5
physiological disorders (loss of balance,
loss of awareness)
Interference with speech communication,
acoustic signals.
Hazards generated by radiation

2
2.1
2.2
4
4.1
4.2
6
6.5
7
7.1
7.2

12

Relevant subclause of this
document

Lasers

4.7

5.2.1,
5.2.7,

5.2.8
5.2.7, 5.2.8
5.2.2, 5.2.3,
5.2.4, 5.2.7,
5.2.8
5.2.3,
5.2.4,
5.2.6, 5.2.7
5.2.7, 5.2.8
5.3.7, 5.3.8

4.9, 5.5.4
4.9

4.2.2, 5

5.3.4,
5.3.17
5.3.4,
5.3.17

5.3.16,
5.3.16,

5.3.2
5.3.2

5.3.13, 6.3

Hazards generated by materials and substances (and their constituent elements)

processed or used by the machinery
Hazards from contact with or inhalation of 4.8
4.3b, 4.4
5.3.3
harmful fluids and dusts
Fire hazard
4.8
4.4
5.3.1, 5.3.3, 6.3


BS EN 1218-3:2001+A1:2009
EN 1218-3:2001+A1:2009 (E)
8
8.1
8.2

Hazards generated by neglecting ergonomic principles in machinery design related
to:
Unhealthy postures or excessive effort
4.9
4.7, 4.8.2, 5.1.2, 6.3
4.11.12,
5.5.5, 5.5.6
Hand-arm or foot-leg anatomy
4.9
4.8.3
5.1.2, 6.3

8.3

Neglected use of personal protection
equipment

4.8.7

6.3

8.4

Local lighting

4.8.6

6.3

8.6

Human error, human behaviour

8.7
8.8
10
10.1
10.2
10.3
10.6

11

4.8, 4.11.8, 6.3
4.11.10,
5.5.2, 6
Design, location or identification of
4.8.7,
5.1.2
manual controls
4.11.8
Design or location of visual display units
4.8.8, 6.2
5.1.2
Unexpected start up, unexpected overrun/overspeed (or any similar malfunction)
from:
Failure/disorder of the control system
4.11, 5.5.4
5.1.1
Restoration of energy supply after an
interruption
External influences on electrical
equipment
Errors made by the operator (due to
mismatch of machinery with human
characteristics and abilities, see 8.6)
Impossibility of stopping the machine
in the best possible conditions

4.9

4.11.4

5.1.6, 5.2.5

4.11.11

5.1.1,
5.3.4,
5.3.12
5.1.1, 5.3.5,
6.3

4.8, 4.11.8,
4.11.10,
5.5.2, 6

4.11.1,
4.11.3,
5.5.2

5.1.2,
5.1.5

5.1.4,

13

Failure of the power supply

4.11.1,
4.11.4

5.1.6

14

Failure of the control circuit

4.11, 5.5.4

5.1.1

15

Errors of fitting

4.9

4.7, 6.5

5.2.3, 6.3

16

Break-up during operation

4.2.2

4.3

5.2.2

17

Falling or ejected objects or fluids

4.2.2

4.3, 4.10

18

Loss of stability / overturning of
machinery

4.2.2

5.2.6

5.2.2,
5.2.3,
5.2.5,
5.2.6,
5.2.8, 5.3.16
5.2.1

"

13


BS EN 1218-3:2001+A1:2009

EN 1218-3:2001+A1:2009 (E)

5

Safety requirements and/or measures

For guidance in connection with risk reduction by design, see !4.1 of EN ISO 12100-2:2003" and in
addition:

5.1

Controls

5.1.1

Safety and reliability of control systems

For the purposes of this European Standard a safety related control system is one from and including the
initial manual control or position detector to the point of input to the final actuator or element e.g. motor. The
safety related control systems of this machine (see !EN ISO 13849-1:2008") are those for:


starting (see 5.1.3);



normal stopping (see 5.1.4);



emergency stop (see 5.1.5);



the braking system (see 5.2.4);



interlocking (see 5.2.7);



interlocking with guard locking (see 5.2.7);



powered clamping (where provided) (see 5.2.8).

Unless otherwise stated in this European Standard these control systems shall, as a minimum, be designed
and constructed in accordance with category 1 as defined in !EN ISO 13849-1:2008".
For the purposes of this European Standard "well tried components and principles" means:
a) electrical components if they comply with relevant standards including the following as:
1) !EN 60947-5-1:2004" (section 3) for control switches with positive opening operation used as
mechanical actuated position detectors for interlocking guards and for relays used in auxiliary
circuits;
2) !EN 60947-4-1:2001" for electromechanical contactors and motor-starters used in main
circuits;
3) !HD 22.1 S4:2002" for rubber-insulated cables;
4) !HD 21.1 S4:2002" for polyvinyl chloride cable if this cable is additionally protected against
mechanical damage by positioning (e.g. inside frames).

b) electrical principles if they comply with the first four measures listed in 9.4.2.1 of
!EN 60204-1:2006". The circuits shall be either “hardwired”, or if electronic components are used
in safety related control systems “well tried” is fulfilled if they are in accordance with 9.4.2.2 (i.e.
redundancy with cross-monitoring) or 9.4.2.3 (i.e. diversity) of !EN 60204-1:2006";
c) mechanical components if, for example they operate in the positive mode in accordance with the
description given in !4.5 of EN ISO 12100-2:2003";

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BS EN 1218-3:2001+A1:2009
EN 1218-3:2001+A1:2009 (E)
d) mechanically actuated position detectors for guards if they are actuated in the positive mode and their
arrangement/fastening and the cam design/mounting comply with 5.2 and 5.3 of EN 1088:1995;
e) interlocking devices with guard locking if they satisfy the requirements of 5.2.7.1;
f)

pneumatic and hydraulic components and systems if they comply with EN 983:1996 and
EN 982:1996 respectively.

Time delay devices used in hardwired safety related control circuits may be of category B in accordance with
the requirements of !EN ISO 13849-1:2008" if the time delay device is designed for at least one million
actuations.
Verification: By checking the relevant drawings and/or circuit diagrams and inspection on the machine.
!deleted text"
!NOTE For components characteristics the information from the component supplier can be useful."

5.1.2

Position of controls

The main control devices of the machine for starting the saw spindles and normal stopping shall be located at
the loading position at a height between 600 mm and 1 700 mm from the floor level.
For the position of emergency stop controls see 5.1.5.
The controls for each saw blade drive motor shall include an indication, e.g. by a light signal or a two position
switch when power is supplied to that motor.
Verification: By checking the relevant drawings and/or circuit diagrams, inspection, measurement and relevant
functional testing on the machine.
5.1.3

Starting

See 9.2.5.2 of !EN 60204-1:2006" and in addition:
For the purposes of this European Standard "all safeguards are in place and functional" is achieved by the
interlocking arrangements described in 5.2.7 and "operational" means rotation of any saw blade spindle.
It shall be possible to start each saw blade drive motor separately.
Verification: By checking the relevant drawings and/or circuit diagrams, inspection and relevant functional
testing on the machine.
5.1.4

Normal stopping

A stop control shall be fitted which, when actuated, stops all machine actuators and cuts power to them once
stopping is complete.
The category of the stop function (category 0 or 1) shall be in accordance with the requirements of 9.2.2 of
!EN 60204-1:2006", where the "safety and/or functional“ requirements of the machine are fulfilled by
maintaining power to the electrical brake (if provided) and/or powered clamping (if provided) until stopping is
complete.
These requirements shall be satisfied at the level of the control circuits. If a time delay device is used, the time
delay shall be at least the maximum run-down time. Either the time delay shall be fixed or the time delay

adjustment device shall be sealed.
If the emergency stop provided by virtue of 5.1.5 also achieves at least the above requirements, then the
emergency stop can be regarded as fulfilling the requirements of the normal stop control.

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BS EN 1218-3:2001+A1:2009
EN 1218-3:2001+A1:2009 (E)
Verification: By checking the relevant drawings and/or circuit diagrams, inspection and relevant functional
testing on the machine.
5.1.5

Emergency stop

See !EN ISO 13850:2008" and in addition:
Machines shall be fitted with an emergency stop control(s) which shall conform to the requirements of 9.2.5.4
and 10.7 of !EN 60204-1:2006". However !10.7.4 of EN 60204-1:2006" does not apply.
The emergency stop control(s) shall be located so that the operator can reach it (them) with the sliding table in
any position.
The category of the stop function (category 0 or 1) shall be in accordance with the requirements of 9.2.2 of
!EN 60204-1:2006", where the "safety and/or functional“ requirements of the machine are fulfilled by
maintaining power to the electrical brake (if provided) and/or powered clamping (if provided) until stopping is
complete.
Verification: By checking the relevant drawings and/or circuit diagrams, inspection and relevant functional
testing on the machine.
5.1.6

Failure of the power supply

On electrically driven machines an automatic restart after the restoration of the supply voltage following a
supply interruption shall be prevented in accordance with the requirements of 7.5, paragraphs 1 and 3, of
!EN 60204-1:2006".
On machines with pneumatic clamping of the workpiece, provision shall be made to maintain clamping
pressure in the event of a pneumatic power failure. Where non-return valves are used to meet this
requirement, they shall be fitted to the actuating cylinders.
Verification: By checking the relevant drawings and/or circuit diagrams, inspection and relevant functional
testing on the machine.
5.1.7

Failure of the control circuits

See 5.1.1.

5.2
5.2.1

Protection against mechanical hazards
Stability

Machines shall be provided with the facility e.g. holes, for fixing them to the floor or other stable structure (also
see 6.3).
!Displaceable" machines shall meet the requirements of annex A.
!Displaceable" machines fitted with wheels shall have the facility to make them stable during cutting e.g.
brakes for the wheels or a device to retract the wheels from the floor.
NOTE
The requirements for a stability test for !displaceable" machines with wheels, both when moved from
location to location and when in use, will be considered at the first revision of this standard.

Verification: By checking the relevant drawings, inspection and relevant functional testing on the machine.

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BS EN 1218-3:2001+A1:2009
EN 1218-3:2001+A1:2009 (E)
5.2.2

Risk of break-up during operation

The saw blade guards required by 5.2.7.1 shall be manufactured from materials with at least the following
properties:
-2

a)

steel with an ultimate breaking strength of at least 350 N mm and a wall thickness of at least 2 mm;

b)

light alloy with the characteristics shown in Table 2;
Table 2 — Light alloy saw blade guard thickness and tensile strength
Minimum ultimate tensile strength
-2
N mm
180
240
300

Minimum thickness

mm
5
4
3

c)

polycarbonate with a wall thickness of at least !5 mm" or other plastic material with such a wall
thickness that the impact strength is equal to or better than that of polycarbonate of !5 mm"
thickness;

d)

cast iron with an ultimate tensile strength of at least 200 N mm and a wall thickness of at least 5 mm.

-2

Verification: By checking the relevant drawings, measurement !and" inspection of the machine..
!deleted text"
!NOTE

5.2.3

For the ultimate tensile strength a confirmation from the manufacturer of the material can be useful."

Tool holder and tool design

See 6.3, !EN 847-1:2005" and in addition:
5.2.3.1

Geometrical performance

The saw blade spindle shall be manufactured to at least the requirements given in annex B.
The part of the spindle upon which the saw blades are located shall have a minimum tolerance of g6 in
accordance with the requirements of ISO 286-2:1988.
Verification: By checking the relevant drawings and by measurement.
5.2.3.2

Strength
-2

The tool spindle shall be manufactured in steel with an ultimate tensile strength of at least 580 N mm .
Verification: By checking the relevant drawings. !deleted text"
!NOTE For the ultimate tensile strength a confirmation from the manufacturer of the material can be useful."

5.2.3.3

Spindle unit locking

Spindle units that are capable of being adjusted, shall be held in the adjusted position during machining.
Verification: By checking the relevant drawings, inspection and relevant functional testing on the machine.

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BS EN 1218-3:2001+A1:2009
EN 1218-3:2001+A1:2009 (E)
5.2.3.4

Spindle locking

When it is necessary to hold the spindle stationary for tool changing, a spindle holding device shall be
provided.
Verification: By checking the relevant drawings, inspection and relevant functional testing on the machine.
5.2.3.5

Spindle rings

Where spindle rings are provided they shall:
a)

have a tolerance of 0,1 mm on the internal diameter;

b)

be manufactured in steel with an ultimate tensile strength of at least 350 N mm
thickness of at least 9,5 mm (see also annex E).

-2

and have a wall

Verification: By checking the relevant drawings, inspection !and" measurement !deleted text".
!NOTE For the ultimate tensile strength a confirmation from the manufacturer of the material can be useful."

5.2.3.6

Saw blade fixing device

Where the saw blade is not axially adjustable, two saw flanges, or in the case of flush mounted saw blades a

single flange, shall be provided for the saw blade spindles. Where the saw blade is axially adjustable, spindle
rings shall be provided.
For saw blades with a diameter ≤ 400 mm, the diameter of both flanges (or flange for flush mounting) shall be
≥ D/5 (where D = the diameter of the largest saw blade for which the machine is designed). For saw blades
with a diameter > 400 mm the diameter of the flange(s) shall be ≥ D/7 but not less than 80 mm.
For flanges other than those for flush mounted saw blades, the clamping surface at the outside part of the
flanges shall be flat over at least a 5 mm width and recessed to the centre (see Figure 5). Where two flanges
are provided, both outside diameters shall be within a tolerance of ± 1 mm.

Figure 5 — Saw flange detail

18