SIST EN 13128:2002
(Main)Safety of machine tools - Milling machines (including boring machines)
Safety of machine tools - Milling machines (including boring machines)
1.1 This standard specifies the technical safety requirements and measures to be adopted by persons undertaking the design, construction and supply (including installation and dismantling, with arrangements for transport and maintenance) of milling machines (see 3.1) including machines capable of performing boring operations (see 3.4). Machines covered by this standard include but are not limited to: knee and column type milling machines see figures C.1, C.2); bedtype mill ing machines (see figure C.3);...
Sicherheit von Werkzeugmaschinen - Fräs- und Bohr-Fräsmaschinen
1 Anwendungsbereich
1.1 Diese Norm legt die technischen Sicherheitsanforderungen und Schutzmaßnahmen fest, die von
Personen zu beachten sind, die mit der Konstruktion, dem Bau und der Lieferung (einschließlich Installation
und Demontage, mit Vorkehrungen für Transport, Wartung und Instandhaltung) von Fräsmaschinen (siehe 3.1)
einschließlich Maschinen zum Ausbohren (siehe 3.5) befasst sind.
Diese Norm schließt folgende Maschinen ein, ohne sich auf diese zu beschränken:
- Konsol- und Ständerfräsmaschinen (siehe Bilder C.1 und C.2),
- Bettfräsmaschinen (siehe Bild C.3),
- Mehrspindelfräsmaschinen (siehe Bilder C.4 und C.5),
- Zweiständer-Fräsmaschinen (siehe Bilder C.4 und C.5),
- Langfräsmaschinen (siehe Bild C.6),
- Bohr-Fräsmaschinen (siehe Bild C. 7).
1.2 Diese Norm berücksichtigt die bestimmungsgemäße Verwendung einschließlich des vernünftigerweise
vorhersehbaren Missbrauchs, der Wartung, des Reinigens und der Einrichtvorgänge. Sie setzt den Zugang zur
Maschine von allen Seiten voraus. Sie beschreibt Einrichtungen zur Risikominderung sowohl für Bediener als
auch für andere gefährdete Personen.
1.3 Diese Norm gilt auch für Werkstückzuführeinrichtungen, wenn diese einen integralen Bestandteil der
Maschine bilden.
1.4 Diese Norm behandelt signifikante Gefährdungen an Fräsmaschinen bei bestimmungsgemäßer Verwen-dung
und unter Bedingungen, die für den Hersteller vorhersehbar sind (siehe Abschnitt 4).
1.5 Gefährdungen, die aus anderen Bearbeitungsverfahren herrühren (z. B. Schleifen, Drehen, Umformen,
Elektroerodieren (EDM), Laser-Bearbeitung), werden durch andere Normen abgedeckt (siehe Literaturhinweise).
1.6 Diese Norm gilt nicht für Fräsmaschinen mit automatischem Werkzeugwechsel (siehe prEN 12417:1996).
1.7 Diese Norm gilt nicht für Fräsmaschinen, die vor dem Datum der Veröffentlichung dieser Norm durch
CEN hergestellt wurden.
Sécurité des machines-outils - Fraiseuses (comprenant les aléseuses)
Domaine d'application
1.1 La présente norme précise les spécifications techniques de sécurité et les mesures qui doivent etre prises par les personnes réalisant la conception, la construction et la fourniture (y compris l'installation et le démontage avec des dispositions pour le transport et l'entretien) des fraiseuses (voir 3.1) y compris les machines capables d'effectuer des opérations d'alésage (voir 3.5).
Les machines traitées dans la présente norme comprennent sans s'y limiter :
- les machines a fraiser a console et les fraiseuses a montant (voir figures C.1, C.2) ;
- les fraiseuses a banc (voir figure C.3) ;
- les fraiseuses multibroche (voir figures C.4 et C.5) ;
- les fraiseuses a portique (voir figures C.4 et C.5) ;
- les fraiseuses a copier et les fraiseuses par contournage (voir figure C.6) ;
- les fraiseuses aléseuses (voir figure C.7).
1.2 La présente norme tient compte de l'usage prévu, y compris du mauvais usage raisonnablement prévisible, des opérations d'entretien, de nettoyage et de réglage. Elle prévoit l'acces a la machine dans toutes les directions. Elle décrit les moyens de réduire les risques auxquels les opérateurs et autres personnes sont exposées.
1.3 La présente norme s'applique aussi aux dispositifs de changement de piece lorsqu'ils font partie intégrante de la machine.
1.4 La présente norme traite des phénomenes dangereux significatifs relatifs aux fraiseuses lorsqu'elles sont utilisées comme prévu et dans les conditions envisagées par le constructeur (voir l'article 4)..
1.5 Les risques provoqués par d'autres procédés d'usinage (par exemple meulage, tournage, formage, usinage par électroérosion, usinage par laser) sont traités dans d'autres normes (voir annexe F - Bibliographie).
1.6 Les fraiseuses a changement automatique d'outils ne sont pas traitées dans la présente norme (voir prEN 12417 : Sécurité des centres d'usinage).
Safety of machine tools - Milling machines (including boring machines)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 13128:2002
01-januar-2002
Safety of machine tools - Milling machines (including boring machines)
Safety of machine tools - Milling machines (including boring machines)
Sicherheit von Werkzeugmaschinen - Fräs- und Bohr-Fräsmaschinen
Sécurité des machines-outils - Fraiseuses (comprenant les aléseuses)
Ta slovenski standard je istoveten z: EN 13128:2001
ICS:
25.080.20 Frezalniki Boring and milling machines
SIST EN 13128:2002 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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EUROPEAN STANDARD
EN 13128
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2001
ICS 25.080.20
English version
Safety of machine tools - Milling machines (including boring
machines)
Sécurité des machines-outils - Fraiseuses (comprenant les Sicherheit von Werkzeugmaschinen - Fräs- und Bohr-
aléseuses) Fräsmaschinen
This European Standard was approved by CEN on 7 March 2001.
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 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2001 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13128:2001 E
worldwide for CEN national Members.
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EN 13128:2001
Contents
Foreword. 3
0 Introduction . 4
1 Scope. 5
2 Normative references . 5
3 Terms and definitions . 7
4 List of significant hazards . 8
5 Safety requirements and/or protective measures. 12
6 Verification of safety requirements and/or measures . 26
7 Information for use. 26
Annex A (normative) Guards on milling machines - Impact test method. 28
Annex B (informative) Equipment for impact test. 31
Annex C (informative) Illustrative figures used as examples . 32
Annex D (informative) Noise emission measurement. 39
Annex ZA (informative) Relationship of this European Standard with EC Directives . 40
Bibliography . 41
Tables:
Table 1 – List of significant hazards and major sources of these hazards associated with milling machines . 9
Table 2 – List of safety requirements and/or protective measures and their verification procedures for manual
machines with continuous powered axis feedrates not exceeding 2 m/minute and/or a hold–to–run controlled
rapid traverse axis speed not exceeding 5 m/minute. 12
Table 3 – List of safety requirements and/or protective measures and their verification procedures for manual
machines with continuous powered axis speeds in excess of 2 m/minute or hold–to–run controlled rapid
traverse axis speed in excess of 5 m/minute. 13
Table 4 – List of safety requirements and/or protective measures and their verification procedures for
mechanical hazards associated with automatic machines . 13
Table 5 – List of safety requirements and/or protective measures and their verification procedures for hazards
other than those listed in tables 2, 3, and 4 . 17
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EN 13128:2001
Foreword
This European Standard has been prepared by Technical Committee CEN/TC 143 "Machine tools - Safety",
the secretariat of which is held by SNV.
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 October 2001, and conflicting national standards shall be withdrawn at
the latest by October 2001.
This European Standard has been prepared under a mandate given to CEN by the European Commission and
the European Free Trade Association, and supports essential requirements of EC Directive(s).
This standard has been prepared to provide one means of conforming with the essential requirements of the
Machinery Directive and associated EFTA regulations.
Annexe A is normative. Annexes B, C, D and ZA are informative. This Standard also contains a Bibliography.
For relationship with EC Directive(s), see informative Annex ZA, which is an integral part of this standard.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark,
Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain,
Sweden, Switzerland and the United Kingdom.
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EN 13128:2001
0 Introduction
This European standard is a type C standard as stated in EN 292–1.
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.
Milling machines present a wide range of hazards, not least from their wide application as rotating tool,
'stationary' workpiece machine tools, for general purpose cutting of cold metal work material.
Protection of operators and other persons from contact with moving cutting tools, especially when being rapidly
rotated in the spindle or from contact with fast–moving workpieces, is of great importance.
When power–operated mechanisms are provided for workpiece transfer, they can also create hazardous
situations during loading/unloading and workpiece alignment or clamping.
On automatic milling machines, total enclosure of the work zone using guards during cutting is the preferred
method of safeguarding. Where this is not practicable (e.g. due to size of the workpiece, its geometry, or its
special characteristics), operators may be safeguarded by other means (e.g. perimeter fencing, protective
devices at the operating position). Operators may also benefit from pendant controls which enable them to
move about the machine.
The significant hazards covered by this standard are those listed in table 1. The safety requirements and/or
protective measures to prevent or minimize those hazards identified in table 1 and procedures for verification
of these requirements or measures are found in clause 5 (tables 2, 3, 4 and 5).
The figures in annex C are examples only and are not intended to illustrate the only interpretation of the text.
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EN 13128:2001
1 Scope
1.1 This standard specifies the technical safety requirements and measures to be adopted by persons
undertaking the design, construction and supply (including installation and dismantling, with arrangements for
transport and maintenance) of milling machines (see 3.1) including machines capable of performing boring
operations (see 3.5).
Machines covered by this standard include but are not limited to:
– knee and column type milling machines (see figures C.1, C.2);
– bed–type milling machines (see figure C.3);
– multi–spindle milling machines (see figures C.4 and C.5);
– plano–milling machines (see figures C.4 and C.5);
– profile and contouring milling machines (see figure C.6),
– milling and boring machines (see figure C.7).
1.2 This standard takes account of intended use including reasonably foreseeable misuse, maintenance,
cleaning, and setting operations. It presumes access to the machine from all directions. It describes means to
reduce risks to operators and other exposed persons.
1.3 This standard also applies to workpiece transfer devices when they form an integral part of the machine.
1.4 This standard deals with significant hazards relevant to milling machines when they are used as intended
and under the conditions foreseen by the manufacturer (see clause 4).
1.5 Hazards arising from other metal working processes (e.g. grinding, turning, forming, EDM, laser
processing) are covered by other standards (see Bibliography).
1.6 Milling machines with automatic tool changing capabilities are not covered by this standard
(see prEN 12417:1996).
1.7 This standard is not applicable to milling machines which were manufactured before the date of publication
by CEN of this standard.
2 Normative references
This European Standard incorporates, by dated or undated reference, provisions from other publications.
These normative references are cited at the appropriate places in the text and the publications are listed
hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to
this European Standard only when incorporated in it by amendment or revision. For undated references the
latest edition of the publication referred to applies (including amendments).
EN 292-1: 1991 Safety of machinery - Basic concepts, general principles for design - Part 1: Basic
terminology, methodology
Safety of machinery - Basic concepts, general principles for design -
EN 292-2: 1991 and EN 292-2/A1:1995
Part 2: Technical principles and specifications
EN 294: 1992 Safety of machinery – Safety distances to prevent danger zones being reached by the
upper limbs
EN 349 Safety of machinery – Minimum gaps to avoid crushing of parts of the human body
Safety of machinery - Auditory danger signals - General requirements, design and testing
EN 457
(ISO 7731:1986 modified)
EN 574 Safety of machinery - Two hand control devices – Functional aspects – Principles for
design
EN 614 Safety of machinery - Ergonomic design principles –
Part 1 Terminology and general principles
Interaction between machinery design and work tasks
Part 2
Safety of machinery – Reduction of risks to health from hazardous substances emitted by
EN 626
machinery
EN 811 Safety of machinery – Safety distances to prevent danger zones being reached by the lower
limbs
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EN 13128:2001
Safety of machinery –Ergonomics requirements and data for the design of displays
EN 894:
and control actuators-
Part 1:1997 Human interactions
Part 2:1997 Displays
Part 3:2000 Control actuators
Safety of machinery – Guards – General requirements for the design and
EN 953:1997
construction of fixed and movable guards
EN 954-1 Safety of machinery - Safety-related parts of control systems - Part l: General
principles for design
EN 982:1996 Safety of machinery - Safety requirements for fluid power systems and their
components - Hydraulics
Safety of machinery - Safety requirements for fluid power systems and their
EN 983:1996
components - Pneumatics
Safety of machinery – The positioning of protective equipment in respect of
EN 999
approach speeds of parts of the human body
prEN 1005:1998 Safety of machinery – Human physical performance –
Part 1: Terms and definitions
Part 2: Manual handling of heavy weights associated with machinery
Recommended force limits for machinery operation
Part 3:
Safety of machinery – Prevention of unexpected start-up
EN 1037:1995
EN 1050:1996 Safety of machinery - Principles for risk assessment
EN 1088:1995 Safety of machinery - Interlocking devices associated with guards – Principles for
design and selection
EN 1127–1:1997 Explosive atmospheres - Explosion prevention and protection – Part 1: Basic concepts an
methodology
Safety of machinery - Pressure sensitive protective devices – Part 1: General
EN 1760–1:1997
principles for the design and testing of pressure sensitive mats and pressure
sensitive floors
EN 1837 Safety of machinery – Integral lighting of machines
EN 60825-1:1994 + A11:1996 Safety of laser products – Equipment classification, requirements and user’s
guide
EN ISO 3744:1995 Acoustics – Determination of sound power level of noise sources using sound
pressure – Engineering method in an essentially free field over a reflecting plane
Acoustics – Determination of sound power level of noise sources using sound
EN ISO 3746:1995
pressure – Survey method using an enveloping measurement surface over a
reflecting plane
EN ISO 4871 Acoustics – Declaration and verification of noise emission values of machinery
and equipment
EN ISO 9614-1:1995 Acoustics – Determination of sound power level of noise sources using sound
intensity – Part 1: Measurement at discrete points
Acoustics – Noise emitted by machinery and equipment – Measurement method
EN ISO 11202:1995
of emission sound power levels at the work station and at other specified
positions – Survey method in situ
EN ISO 11204:1995 Acoustics - Noise emitted by machinery and equipment – Method requiring
environmental corrections
EN ISO 11688-1 Acoustics – Recommended practice for the design of low–noise machinery and
equipment - Part 1: Planning
Acoustics – Recommended practice for the design of low–noise machinery and
ISO/TR 11688-2:1998
equipment - Part 2: Introduction to the physics of low-noise design
EN 14122: 2001 Permanent means of access to machines and industrial plants
Part 2: Working platforms and gangways
Part 3: Stairways, stepladders and guard-rails
Safety of machinery - Fire prevention and protection
prEN 13478:1999
Safety of machinery - Electrical equipment of machines - Part 1: General
EN 60204-1:1997
requirements
EN 60529:1991 Degrees of protection provided by enclosures (IP Code)
EN 61496-1:1997 Safety of machinery - Electrosensitive protective equipment - Part 1 - General
requirements and tests
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EN 13128:2001
Safety of machinery – Electro-sensitive protective equipment –
prEN 61496-2:1997
Part 2: Particular requirements for equipment using active opto-electronic protective
devices
EN 50081-2 Electromagnetic compatibility - Generic emission standard –
Part 2: Industrial environment
EN 61000-6-2 Electromagnetic compatibility (EMC) – Part 6-2: Generic standards - Immunity for
industrial environments
(IEC 61000-6-2:1999)
3 Terms and definitions
For the purposes of this standard, the following terms and definitions apply. For other terms and definitions,
see EN 292–1, EN 292–2/A1.
3.1
milling machine
a machine designed to shape cold metal by the use of a rotating cutting tool.
3.1.1
manual milling machine
a machine where axis motion is controlled through the actuation of a handwheel or where powered single–axis
motion is controlled by mechanical, electrical, or other means but without the capability for programmed
multiple axis movements.
3.1.2
automatic milling machine
a machine capable of performing programmed multiple axis movements.
3.2
boring machine
a machine designed to perform boring operations (see 3.5). Such machines are normally capable of milling
operations.
3.3
numerical control (computer numerical control) (NC, CNC)
automatic control of a process performed by a device that makes use of numeric data introduced while the
operation is in progress. (ISO 2806:1994, 2.1.1)
3.4
workpiece transfer device
a mechanism integrated with the machine (e.g. pallet changing device) as a means of supplying a previously
loaded workpiece to a machine in exchange for a finished workpiece.
3.5
boring operation
the process of finishing to size previously formed holes in cold metal normally by the use of a rotating single–
point tool using powered axial feed.
3.6
work zone
the space where the metal cutting process can take place.
3.7
electronic handwheel
a manually operated control device which initiates and maintains an axis movement by pulse generation input
to the numerical control during its rotation.
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EN 13128:2001
4 List of significant hazards
4.1 The list of hazards contained in table 1 is the result of a hazard identification and risk assessment
carried out as described by EN 1050, for the wide range of milling machines covered by the scope of this
standard. The safety requirements and/or measures and information for use contained in clauses 5 and 7 are
based on the risk assessment and deal with the identified hazards by either eliminating them or reducing the
effects of the risks they generate.
4.2 The risk assessment assumes foreseeable access from all directions, as well as unexpected start–up.
Risks to both the operators and other persons who can have access to the hazard zones are identified, taking
into account hazards which can occur under various conditions (e.g. commissioning, set–up, production,
maintenance, repair, decommissioning) during the life of the machine. The assessment includes an analysis of
the effect of failure in the control system.
4.3 In addition, the user of this standard (i.e. the designer, manufacturer, supplier) shall validate that the
risk assessment is complete for the machine under consideration with particular attention to:
– the intended use of the machine including maintenance, setting and cleaning, and its reasonably
foreseeable misuse;
– the identification of the significant hazards associated with the machine.
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EN 13128:2001
Table 1 – List of significant hazards and major sources of these hazards associated with milling
machines
Description Example(s) of related Associated activity Related danger zone Clause 5
*
hazardous situation(s) Reference
1. Mechanical hazards:
1.1 Crushing moving axes, workpiece setting, loading/ between fixed and Tables 2, 3;
and tool clamping unloading, moving elements of or
maintenance the machine Table 4
moving axes maintenance within pits and
movement of operating normal operation, at or near machine Table 5 –
platforms maintenance 1.1 – 1.5
1.2 Shearing moving axes machine operation between tool/ spindle
and table/ workpiece
1.3 Cutting or severing spindle or tool running spindle running at spindle or tool
or cutting
1.4 Entanglement rotating spindle or tool workpiece at spindle or tool
load/unload, posi-
removal of swarf/chips
tional adjustment,
manual swarf/chip
removal, cutting fluid
application
other rotating parts (e.g. setting, cleaning, swarf/chip collection
conveyors, transmission maintenance and discharge zones,
elements) transmission
elements
1.5 Drawing–in or trapping rapid travel of table or power–operated envelope of
spindle head motion of workpiece movement of work-
on table or tool in piece on table axes;
spindle envelope of move-
ment of tool in spindle
head
rotating power maintenance in or around machine
transmission
mechanisms
1.6 Impact moving/rotating tool spindle running at spindle or tool
automatic workpiece power-operated envelope of motion of
transfer (e.g. pallet workpiece transfer workpiece and work-
loading system) piece transfer
mechanisms
1.7 Stabbing or puncture moving/rotating tool process control at tool in spindle
(especially eccentric
tools)
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EN 13128:2001
• Description Example(s) of related Associated activity Related danger zone Clause 5
hazardous situation(s) Reference
1.7 Stabbing or puncture handling tools during manual tool at sharp cutter faces (see 7.2 of
change clause 7)
handling swarf/chips during loading/ at workpiece, table, (see 7.2 of
unloading and and swarf /chip clause 7)
cleaning collecting and
discharge zones
2 :
Electrical hazards
2.1 Contact of persons contact with live parts or during electrical cabinet, Table 5: 2.1
with live parts (direct connections commissioning, terminal boxes,
contact) maintenance, trouble control panels at
shooting machine
2.2 Contact of persons contact with live parts or during operation, at machine or faulty Table 5: 2.2
with parts which have connections inspection and part
become live under maintenance of
faulty conditions machine
(indirect contact)
4 Hazards generated by noise:
4.1 Hearing loss motion of power during operating cycle near machine Table 5: 4
(deafness), other transmission elements, of machine
physiological cutting processes and
fluid power systems
disorders (e.g. loss of
balance, loss of
awareness)
4.2 Interference with air blast used for during operating cycle near machine Table 5: 4
speech cleaning of tool, pallet of machine
communication, or workpiece locations
acoustical signals
6
Hazards generated by radiation
6.5 Lasers direct or reflected visual maintenance of laser within machine Table 5: 6.5
exposure to laser positional feedback
radiation system
7 Hazards generated by materials and substances
7.1 Hazards from contact conditions near machine during operating cycle at or near machine Table 5: 7.1
with or inhalation of caused by ejection of of the machine
harmful fluids, gases, particles of work
mists, fumes, and material, fluid droplets
dusts or mist from metal
working fluids
7.2 Fire or explosion flammable work during operating cycle at or near machine Table 5: 7.2
material, flammable (low of the machine
flash point) metal
working fluids
7.3 Biological or micro– contact with hydraulic or during operation, at or near machine Table 5: 7.3
biological (viral or metal working fluid as process control, and
bacterial) hazards liquid or mist containing maintenance
detritus and bacteria
8 Hazards generated by neglecting ergonomic principles in the design process
8.1 Unhealthy postures or lifting and reaching while during loading/ at load/unload and Table 5: 8.1
excessive effort handling workpiece, unloading, process tool mounting
(repetitive strain) tools, and machine parts control, and positions,
maintenance maintenance action
points
8.2 Inadequate inappropriate location of during loading/ at load/unload and Table 5: 8.2
consideration of hand- controls unloading, process tool mounting
arm or foot-leg control, and positions,
anatomy maintenance maintenance action
points
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EN 13128:2001
* Description Example(s) of related Associated activity Related danger zone Clause 5
hazardous situation(s) Reference
8.4 Inadequate local judgement and accuracy during loading at load/unload, tool Table 5: 8.4
lighting of manual actions im- /unloading, process mounting positions
paired during handling/ control, tool handling
positioning of work
materials and cutters
8.6 Human errors, human reasonably foreseeable during loading/ at load/unload, tool Table 5: 8.6
behaviour misuse, inadvertent unloading, process mounting positions
operation of controls, control, tool handling
incorrect work material
and cutter handling and
setting
8.7 Inadequate design, inadvertent operation of during setting, at or near machine Table 5: 8.7
location or identification controls operating cycle
of manual controls
8.8 Inadequate design or misinterpretation of during setting, at or near machine Table 5: 8.8
location of visual displayed information operating cycle
display units
10 Unexpected start-up, unexpected overrun/ overspeed:
10.1 Failure/disorder of the mechanical hazards during setting, at machine Table 5: 10.1
control system associated with selected cleaning
machine movement
10.2 Restoration of energy unexpected movements of during setting, at or near machine Table 5: 10.2
supply after an machine cleaning or
interruption maintenance
10.3 External influences on unpredictable behaviour of during setting or at or near machine Table 5: 10.3
the electrical equipment electronic controls due to operating cycle of the
electromagnetic machine
interference
13 Failure of the power malfunctions of the control during operation, at machine where Table 5: 13
with consequent process control, machine elements
supply
misapplication of stored maintenance retained in a safe
energy or power. Power condition by the
workholding fails, motor application of power or
overspeed. Part break- fluid pressure.
age causes machine
elements to move under
residual forces (inertia,
gravity, spring/ energy
storage means) causing
external elements to move
unexpectedly
14 Failure of the control Unexpected movements during setting, at or near machine Table 5: 14
circuit of machine cleaning or
maintenance
15 Errors of fitting machine elements fail or during process con- at machine Table 5: 15
swing unexpectedly trol, tool mounting,
maintenance
17 ejection of machine parts, during the operating at or near machine Table 5: 17
Falling or ejected
workpiece or tools caused cycle of the machine
objects or fluids
by clamping device,
control system failures or
collision due to data errors
18 Loss of stability, unrestrained machine or during loading/ un- at machine Table 5: 18
machine part (maintained loading and process
overturning of
in position by gravity), control, at heavy
machinery
falls or overturns /unwieldy workpieces
during maintenance
(disassembly/
relocation)
19 Slip , trip, and fall of ejection or spillage of during workpiece machine table, floor Table 5: 19
persons metal working fluids and load/unload, setting, area around machine
lubricants (also hydraulic process control and and workpiece;
fluid if used); work at maintenance; work at permanent means of
heights heights; work to access to the machine
replenish fluids (e.g.
lubricants)
* This list is derived from annex A of EN 1050: 1996.
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EN 13128:2001
5 Safety requirements and/or protective measures
5.1 General requirements
Machines covered by the scope of this standard shall comply with the safety requirements and/or protective
measures of this clause.
In addition, the machine shall be designed according to the principles of EN 292 for hazards relevant but not
significant which are not dealt with by this standard.
5.2 Specific requirements
Each machine type shall be designed and safeguarded in accordance with the specific requirements and/or
protective measures listed in tables 2, 3 or 4 and the relevant requirements and/or protective measures of
table 5.
Manual machines with continuous powered axis feedrates not exceeding 2 m/min and/or a
Table 2
hold–to–run controlled rapid traverse axis speed not exceeding 5 m/min
Table 3 Manual machines with continuous powered axis speeds in excess of 2 m/min or hold–to–run
controlled rapid traverse axis speed in excess of 5 m/min
Table 4 Automatic machines (mechanical hazards)
Table 5 Manual and automatic machines (hazards other than those listed in tables 2, 3, and 4)
NOTE General guidance for the design and selection of safeguards, where the hazards from moving parts cannot be
avoided by design is given in 4.1, 4.2 and table 1 of EN 292-2: 1991.
Table 2 – List of safety requirements and/or protective measures and their verification procedures for
manual machines with continuous powered axis feedrates not exceeding 2 m/min and/or a hold–to–
run controlled rapid traverse axis speed not exceeding 5 m/min
Hazard Safety requirement and/or protective measure Verification
1. Mechanical
1.1 Work zone
by visual inspection
Adjustable cutter guard(s) or adjustable guards mounted to the
of the machine
machine table shall be provided to inhibit access to the cutting tool (see
figures C.8 and C.9) . Guards shall be in accordance with EN 953:1997.
1.2 Provision for interlocked guards
by visual inspection
Since some applications require the user to fit an interlocked movable
of the machine and
guard, all machines shall be provided with an electrical interface to
examination of
connect a guard interlock .
circuit diagrams
NOTE Crushing, shearing and impact hazards are not normally considered significant for low–feedrate manual milling
machines covered by table 2.
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