SIST EN 1009-4:2020

SLOVENSKI STANDARD
SIST EN 1009-4:2020
01-september-2020
Stroji za mehansko obdelavo mineralov in podobnih trdnih snovi - Varnost - 4. del:
Posebne zahteve za presejalne stroje
Machines for mechanical processing of minerals and similar solid materials - Safety -
Part 4: Specific requirements for screening machinery
Maschinen für die mechanische Aufbereitung von Mineralien und ähnlichen festen
Stoffen - Sicherheit - Teil 4: Spezifische Anforderungen für Klassiermaschinen
(Siebmaschinen)
Machines pour le traitement mécanique des minéraux et des matériaux solides similaires
- Sécurité - Partie 4 : Prescriptions spécifiques pour machines de criblage
Ta slovenski standard je istoveten z: EN 1009-4:2020
ICS:
13.110 Varnost strojev Safety of machinery
73.120 Oprema za predelavo rudnin Equipment for processing of
minerals
91.220 Gradbena oprema Construction equipment
SIST EN 1009-4:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 1009-4:2020

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SIST EN 1009-4:2020


EN 1009-4
EUROPEAN STANDARD

NORME EUROPÉENNE

May 2020
EUROPÄISCHE NORM
ICS 73.120; 91.220
English Version

Machines for mechanical processing of minerals and
similar solid materials - Safety - Part 4: Specific
requirements for screening machinery
Machines pour le traitement mécanique des minéraux Maschinen für die mechanische Aufbereitung von
et des matériaux solides similaires - Sécurité - Partie 4 : Mineralien und ähnlichen festen Stoffen - Sicherheit -
Prescriptions spécifiques pour machines de criblage Teil 4: Spezifische Anforderungen für
Klassiermaschinen (Siebmaschinen)
This European Standard was approved by CEN on 13 April 2020.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1009-4:2020 E
worldwide for CEN national Members.

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EN 1009-4:2020 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Safety requirements and/or protective/risk reduction measures . 7
4.1 General . 7
4.2 Ergonomics requirements for screening machines maintenance . 8
4.3 Screen equipment (cross tensioned screening panels, sheets, blocks and other wear
parts) . 20
5 Verification of safety requirements and/or protective/risk reduction measures . 21
6 Information for use . 23
6.1 General . 23
6.2 Signals and warning devices . 23
6.3 Instruction handbook . 23
Annex A (informative) Example of screening machinery . 24
Annex B (informative) Trilingual terminology of screening machinery. 27
Annex C (informative) Calculation of the access dimensions . 28
Annex D (informative) List of significant hazards . 31
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC aimed to be covered . 35
Bibliography . 37


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EN 1009-4:2020 (E)
European foreword
This document (EN 1009-4:2020) has been prepared by Technical Committee CEN/TC 151 “Construction
equipment and building material machines — Safety”, the secretariat of which is held by DIN.
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 November 2020, and conflicting national standards shall
be withdrawn at the latest by May 2022.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a standardization request 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 Annex ZA, which is an integral part of this
document.
This part of EN 1009 is intended to be used in conjunction with EN 1009-1:2020.
EN 1009 “Machines for mechanical processing of minerals and similar solid materials — Safety”
comprises the following parts:
— Part 1: Common requirements for machinery and processing plants
— Part 2: Specific requirements for feeding machinery and continuous handling equipment
— Part 3: Specific requirements for crushing and milling machinery
— Part 4: Specific requirements for screening machinery
— Part 5: Specific requirements for cleaning, recycling and mud treatment machinery
— Part 6: Specific requirements for mobile machinery (in preparation)
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, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United
Kingdom.
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Introduction
This document is a type-C standard as stated in EN ISO 12100.
This document is of relevance, in particular, for the following stakeholder groups representing the market
players with regard to machinery safety:
— machine manufacturers (small, medium and large enterprises);
— health and safety bodies (regulators, accident prevention organizations, market surveillance etc.).
Others can be affected by the level of machinery safety achieved with the means of the document by the
above-mentioned stakeholder groups:
— machine users/employers (small, medium and large enterprises);
— machine users/employees (e.g. trade unions, organizations for people with special needs);
— service providers, e.g. for maintenance (small, medium and large enterprises);
— consumers (in case of machinery intended for use by consumers).
The above-mentioned stakeholder groups have been given the possibility to participate at the drafting
process of this document.
The machinery concerned and the extent to which hazards, hazardous situations or hazardous events are
covered are indicated in the Scope of this document.
When requirements of this type-C standard are different from those which are stated in type-A or B
standards, the requirements of this type-C standard take precedence over the requirements of the other
standards for machines that have been designed and built according to the requirements of this type-C
standard.
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1 Scope
This document, to be used together with EN 1009-1:2020, specifies the safety requirements and their
verification for the design and construction of screening machinery for the mechanical processing in
quarrying, recycling and processing mineral and by-products as defined in 3.1.
In addition, it specifies the type of information on safe working practices (including residual risks) to be
provided by the manufacturer.
When requirements of this document are different from those which are stated in EN 1009-1:2020, the
requirements of this document take precedence over the requirements of EN 1009-1:2020 for machines
that have been designed and built according to the provisions of this document.
This document, together with EN 1009-1:2020, deals with all the significant hazards, hazardous
situations and events relevant to screening machinery when they are used as intended and under the
conditions foreseen by the manufacturer (see Annex C).
This document does not cover:
— design relating to road traffic regulations;
— hazards arising from the use of the machines in potentially explosive atmospheres as well as from
processing of explosive materials and risks related to electromagnetic compatibility;
— specific hazards related to mobile machinery.
NOTE 1 EN ISO 13766-1 and EN ISO 13766-2 specify test methods and acceptance criteria for evaluating the
electromagnetic compatibility of all kinds of mobile construction machinery.
NOTE 2 prEN 1009-6 “Specific requirements for mobile and semi mobile equipment” is under preparation to
cover specific requirements (e.g. mobility, braking, access, frequent transportation), including exceptions and
additional requirements for mobile and semi mobile equipment. This means that mobile machines are not covered
as long as EN 1009-6 is not published by CEN.
This document is not applicable to screening machinery which are manufactured before the date of
publication of this document by CEN.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
EN 547-1:1996+A1:2008, Safety of machinery — Human body measurements — Part 1: Principles for
determining the dimensions required for openings for whole body access into machinery
EN 547-2:1996+A1:2008, Safety of machinery — Human body measurements — Part 2: Principles for
determining the dimensions required for access openings
EN 1009-1:2020, Machines for mechanical processing of minerals and similar solid materials — Safety —
Part 1: Common requirements for machinery and processing plants
EN ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk
reduction (ISO 12100:2010)
EN ISO 13854:2019, Safety of machinery — Minimum gaps to avoid crushing of parts of the human body
(ISO 13854:2017)
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EN ISO 14122-1:2016, Safety of machinery — Permanent means of access to machinery — Part 1: Choice
of fixed means and general requirements of access (ISO 14122-1:2016)
EN ISO 14122-2:2016, Safety of machinery — Permanent means of access to machinery — Part 2: Working
platforms and walkways (ISO 14122-2:2016)
EN ISO 14122-3:2016, Safety of machinery — Permanent means of access to machinery — Part 3: Stairs,
stepladders and guard-rails (ISO 14122-3:2016)
EN ISO 14122-4:2016, Safety of machinery — Permanent means of access to machinery — Part 4: Fixed
ladders (ISO 14122-4:2016)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 12100:2010,
EN 1009-1:2020 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp/ui
— IEC Electropedia: available at http://www.electropedia.org/
NOTE Annex A shows examples of screening machinery.
3.1
screening machinery
stationary or mobile machinery that separates industrial mineral by-products into two or more fractions
by dry or wet process through use of a screen (3.2)
Note 1 to entry: Screening machinery can be installed in a plant, a modular machinery or a mobile machine, as
defined in EN 1009 1:2020, 3.1 to 3.3 and illustrated in Annex B.
3.2
screen
one of the following machines: vibrating screen (3.3), roller screen (3.4) or tumbler screening machine
(3.5)
3.3
vibrating screen
screen (3.2) oscillated either by hydraulical, mechanical or electrical means for scalping and separation
[SOURCE: ISO 9045:1990, 3.2.38, modified by adding "hydraulical means"]
3.4
roller screen
roll screen
screen (3.2) consisting of a number of horizontal rotating shafts, fitted with elements arranged to provide
screening apertures for scalping and separation
Note 1 to entry: This may be a wobbler screen, a star screen, disk screen or other type of screen with rollers
rotating in the same direction.
[SOURCE: ISO 1213-1:1993, 4.5.8]
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3.5
tumbler screening machine
tumbler screen
screening machine with a three-dimensional eccentric motion with a radial and tangential inclination
Note 1 to entry: Basically, this type of machine is used to screen for fine and ultra-fine products.
3.6
screening media
device fitted on each screening deck to separate products into two fractions
Note 1 to entry: This device can be, e.g. metallic, polyurethane or rubber.
Note 2 to entry: The dimension of this device may cover the full size of the screening deck or be composed with
an assembly of several modules.
4 Safety requirements and/or protective/risk reduction measures
4.1 General
Screening machinery shall comply with the requirements of EN 1009-1:2020, as far as not modified or
replaced by the requirements of this part.
For dry operation, when screens are dust-encapsulated, the dust-encapsulation shall allow the
replacement of the screen meshes, inspection and maintenance.
The following functions shall be stopped when opening screen oversize chute, and they shall not be able
to be started when the chutes are open and shall not be automatically re-started when the chutes are
closed:
— drive of the screen;
— relevant upstream and downstream machinery (e.g. bypass).
For maintenance, fall protection shall be provided:
— when the oversize chute is open (e.g. by a folding platform system);
— from the top deck outwards sides of the screen (e.g. by a handrail);
— through the decks of the screen (e.g. by a removable shield).
These access and fall protection shall allow the periodical interventions including the removal of meshes.
In deviation to EN ISO 14122, for maintenance above the screen, instead of fixed guardrails, removable
guardrails or permanent wire ropes providing the same protection as handrail and knee-rail (with no
direct anchorage to the machine) may be provided.
Warning signs (e.g. crushing, shearing, dust, PPE) shall be placed close to the relevant areas.
For inspection and maintenance (checking mesh conditions, greasing, sealing, lining conditions, cleaning,
changing meshes, changing lining, etc.), access and working spaces are specific according to screens
machinery design and shall comply with 4.2.1.
All relevant residual risks shall be part in the information for use in 6.3.1.
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4.2 Ergonomics requirements for screening machines maintenance
4.2.1 General
According to EN 1009-1:2020, the EN ISO 14122 series, EN 547-1:1996+A1:2008 and
EN 547-2:1996+A1:2008 apply.
The design of screening machines shall be such that the frequency and duration of maintenance
operations in the screen, in which an operator is required to enter, are minimized.
The design of screening machines should be such that inspection, cleaning and maintenance operations
can be performed from a position outside of the screen box. This can be achieved for example by
providing means to adjust the screen tension from outside the screen box, providing access hatches in
the body of the screen in order to allow upper limb access to the tensioning bolts, reducing the size of the
screening media in order to facilitate the ease of removal of screening medias.
In complement to EN 1009-1:2020, 4.2.1, the minimum dimensions given in 4.2.2 and 4.2.3 shall be
considered taking into account any maintenance hatches and moveable parts that are incorporated into
screening machines. For example:
— moveable conveyors (for example, raising, lowering, sliding conveyors);
— moveable feeding hoppers;
— moveable chute;
— splitting of screens.
Where inspection, cleaning or maintenance is performed when moveable parts are in the raised position,
these moveable parts shall be mechanically secured with a device, for example locking pin. These devices
shall be permanently affixed to the machine or stored on a safe place on the machine.
Inspection, cleaning and maintenance procedures shall be described in the instruction handbook (folding,
dismantling meshes and lining, mechanical parts, etc.), see Clause 6.
In all cases described in 4.2.2 and 4.2.3, the reach distances may be increased depending on the length of
a tool, if such tool is intended to be used according to the instruction handbook of the manufacturer.
The mesh material can be metallic, rubber (RU) or polyurethane (PU) with tensioning or modular system.
Whatever is the mesh material the inspection, cleaning and maintenance procedures shall be described
in the instruction handbook (folding, dismantling meshes and lining, mechanical parts, etc.), see Clause 6.
4.2.2 Minimum dimensions for inspection
4.2.2.1 Inspection laterally from outside through an opening for one upper limb
As one arm is sufficient for access through an access opening with a minimum diameter, C, of 141 mm for
inspection from outside, maximum dimension for one upper limb to reach the inspection area (R) shall
be 495 mm (see Figure 1). It may be increased if the access openings, C, are larger than the minimum
dimensions.
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Key
C minimum opening diameter
R maximum reaching distance (radius from opening)
Figure 1 — Access for inspection from outside and laterally through an opening
4.2.2.2 Inspection from outside through access opening(s) with two arms
Horizontal access openings for two arms shall be, as illustrated in Figure 2, the following minimum
distances:
A = 645 mm
B = 221 mm
H = 1 520 mm
Maximum reach distance = 462 mm
The maximum reach distance may be increased if the access openings are larger than the minimum
dimensions.
This requirement does not apply to screens the width of which is less than 645 mm.
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Dimensions in millimetres

Key
A minimum width of opening
B minimum height of opening
H maximum height of the bottom point of the opening from ground level
Figure 2 — Inspection from outside through access opening(s) with two arms
The maximum dimension for upper limbs to reach the inspection area given value of 495 mm is a
minimum value linked to the minimum dimensions of the access opening. It may be increased with a
bending position.
4.2.2.3 Inspection from outside from the top
Horizontal access openings for two arms shall be the following minimum distances:
A = 645 mm
B = 221 mm
H = 903 mm to 1 152 mm
R = 462 mm
The maximum reach distance may be increased if the access opening are larger than the minimum
dimensions.
4.2.3 Minimum dimensions for maintenance
4.2.3.1 Maintenance from outside from front and rear
The opening for one or both arms shall be the followings minimum distances, as illustrated in Figure 3:
A = 645 mm
B = 300 mm
R = 506 mm
H ≤ 1 230 mm.
NOTE If the opening is greater than the minimum required dimensions, the grip reach value can increase.
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Dimensions in millimetres

Key
A minimum width of opening
B minimum height of opening
R maximum reaching distance (radius from opening)
H maximum height of the bottom point of the opening from ground level
Figure 3 — Maintenance from outside from front and rear through access opening(s)
4.2.3.2 Maintenance from outside from the top
a) Access for maintenance downwards through a limited opening shall comply with the followings:
A = 645 mm
B = 300 mm
R = 506 mm
H = 900 mm to 1 200 mm.
Value H is a minimum value; It may be increased with a bending position if the means of access (H)
is between 900 mm and 1 200 mm (see Figure 3).
b) Access for maintenance forwards without limitation shall comply with the followings:
R = 615 mm
H = 900 mm to 1 200 mm.
See Figure 4.
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c) In case of lying position:
1) there is also the possibility to carry out maintenance with 2 arms, each arm reaching through a
separate opening (reaching through different longitudinal beams);
2) where access openings are in a horizontal surface for downward entry, space shall be provided
for a lying position of the operator;
3) if the grip reach distance requirement is greater than 506 mm the dimensions of the access
opening shall be increased to allow entry of the upper body.
The minimum dimension for each opening shall be:
A = 221 mm
R = 506 mm.
Dimensions in millimetres

Key
R maximum reaching distance (radius from opening)
H maximum height of the bottom point of the opening from ground level
Figure 4 — Maintenance from the top without limitation
4.2.4 Minimum dimensions for inspection and maintenance from inside
4.2.4.1 General
If it is necessary to enter inside the screen for inspection and maintenance, in exemption to
EN 1009-1:2020, 4.2.1 the following subclauses 4.2.4.2 and 4.2.4.3 apply.
NOTE If there are space constraints in an existing plant, identical replacement of a screen is a spare part
replacement and therefore does not need to meet this requirement.
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4.2.4.2 Passage from the top to work inside
The minimum dimensions of the passage from the top shall be:
— rectangular opening:
A = 645 mm
B = 450 mm
See Figure 5 a.
— circular opening:
C = 645 mm
See Figure 5 b.
The distance between two decks under cross beam shall be 550 mm, except for replacement or upgrade
on an existing plant due to space constraints, this minimum distance (H ) may be 450 mm.
2
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Dimensions in millimetres

a) rectangular opening

b) circular opening
Key
A minimum width of opening
B minimum height of opening
C minimum opening diameter
Figure 5 — Passage from the top to work inside
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4.2.4.3 Passage to access inside the screen
4.2.4.3.1 General
Minimum passage shall be minimum:
— to enter the body face to the opening (see Figure 6): 645 mm (4.2.9 shoulder Bideltoid) × 450 mm
(4.1.11 Thorax Width ISO 7250-3);
— to enter the body laterally to the opening (see Figure 7): 1 062 mm (4.2.8 sitting height 962 mm
+ 100 mm clothes) × 366 mm (chest depth 266 mm + 100 mm, P95).
The height of the platform shall comply with the requirements of EN ISO 14122-2:2016.
4.2.4.3.2 Punctual obstacle inside the screen
The distance between two decks under cross beam shall be 550 mm, except for replacement or upgrade
on an existing plant due to space constraints, this minimum distance may be 450 mm. See Figure 6.
In case where the minimum height (H ) is 450 mm because of space constraints listed above, the distance
1
(H ) between the deck and the obstacle shall be minimum 366 mm. See Figure 8.
2
Dimensions in millimetres

Key
A minimum width of opening
B minimum height of opening
H1 distance between two decks under cross beam
H2 distance between the deck and the obstacle
Figure 6 — Passage to access inside the screen – Entering the body face to the opening
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Dimensions in millimetres

Key
A minimum width of opening
B minimum height of opening
H distance between two decks under cross beam
1
Figure 7 — Passage to access inside the screen – Entering the body laterally to the opening
Dimensions in millimetres

Key
A minimum width of opening
H distance between two decks under cross beam
1
H2 distance between the deck and the obstacle
Figure 8 — Passage dimensions between two decks if crawling is required
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4.2.4.4 Working space to work inside
4.2.4.4.1 General
For maintenance on the upper deck of a screen, safety devices (e.g. guardrails, anti-fall device) shall be
installed during the operations and shall be described in the maintenance manual.
For maintenance from the rear or the front between two decks, the minimum width (A) shall be 645 mm
(see Figure 8).
The distance between two decks under cross beam shall be 550 mm except for replacement or upgrade
on an existing plant due to space constraints, this minimum distance (H ) may be 450 mm.
2
When it is not necessary to access beneath the obstacle(s) (see 4.2.4.4.2 and 4.2.4.4.3), the height below
obstacle(s) under which the operator can work shall be at least 300 mm.
When it is not necessary to access beneath the obstacle(s) nor needed to use tool, then the height below
the obstacle does not apply (e.g. self-supporting media) and the working procedure shall be provided in
the instructions for use.
4.2.4.4.2 Case of a single punctual obstacle (e.g. transmission mechanism)
The length of a punctual obstacle shall be no more than 393 mm, under the condition that access is
possible from each side of the obstacle (see Figure 9 and Figure 10).
Dimensions in millimetres

Figure 9 — Maximum dimensions of a punctual obstacle when access is possible one side
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Dimensions in millimetres

Figure 10 — Maximum dimensions of a punctual obstacle when access is possible from each side
4.2.4.4.3 Case of a combination of two cylindrical punctual obstacles (e.g. double transmission
mechanism)
For a combination of two cylindrical punctual obstacles, to allow the operator to work from each side of
the obstacles, the distance (D) between axles shall be determined on the basis of the values given in
Table 1 and illustrated in Figure 11.
Table 1 — Minimum working distance (D) between axles in case of a combination of two
obstacles
Height Distance between axles
H D
2
mm mm
300 700
375 800
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Key
...