SIST EN 12609:2021
(Main)Truck mixers - Safety requirements
Truck mixers - Safety requirements
The Standard is to specify the safety requirements applicable to truck mixers. A truck mixer as defined by this standard is used for the transportation and mixing of concrete, mortars and mineral building materials. The safety requirements will cover the superstructure (mixer equipment) and its interface with the truck chassis but not cover the truck itself and the elements required for the basic transport function of the truck. Other machinery that can be combined with the truck mixer, such as concrete pumps, distributor masts and conveyor belts will not be covered by the document.
Fahrmischer - Sicherheitsanforderungen
1.1 Dieses Dokument legt die Sicherheitsanforderungen für Fahrmischer fest.
Dieses Dokument behandelt auch die Schnittstelle zwischen der Mischereinheit und dem Lastkraftwagen oder Anhänger (jedoch nicht den Lastkraftwagen oder Anhänger selbst).
ANMERKUNG 1 Lastkraftwagen oder Anhänger, vor allem für die Beförderung von Gütern, wie in Richtlinie 2007/46/EG, Kategorie N3 oder O4, klassifiziert.
Dieses Dokument behandelt nicht:
a) Zusatzausrüstung (Förderband, Mörtelpumpe, Betonpumpe, Betonverteilermast);
b) Anforderungen für den Betrieb in Tunneln;
c) Fahrmischer oder selbstfahrende Mischer mit Selbstladeeinrichtung;
d) Mischer mit Frontentleerung;
e) Mischereinheiten mit Knicklenkung;
f) Fahrmischer-Trommelreinigungssystem;
g) Energiequelle(n).
Dieses Dokument behandelt keine Trägerfahrzeuge, z. B. Lastkraftwagen, Traktoren, Baumaschinen und mobile industrielle Fördergeräte oder andere selbstfahrende Fahrzeuge.
Dieses Dokument enthält keine Anforderungen, die in den Richtlinien zum Bau von Fahrzeugen oder nationalen Straßenverkehrsvorschriften abgedeckt sind.
ANMERKUNG 2 Die Verwendung im öffentlichen Straßenverkehr unterliegt nationalen Regelungen.
1.2 Dieses Dokument behandelt alle signifikanten Gefährdungen, Gefährdungssituationen und Gefährdungsereignisse, die auf Fahrmischer zutreffen, wenn sie bestimmungsgemäß und unter Bedingungen, die vom Hersteller als Fehlanwendung vernünftigerweise vorhersehbar sind, verwendet werden (siehe Anhang D). Dieses Dokument legt die geeigneten technischen Maßnahmen zur Beseitigung oder Verminderung der Risiken fest, die von den signifikanten Gefährdungen während des Transports, der Bestückung, der Demontage, des Außerbetriebsetzens, der Verschrottung, des Betriebs und der Instandhaltung des Fahrmischers ausgehen.
1.3 Dieses Dokument gilt nicht für Maschinen, die vor dem Datum der Veröffentlichung dieses Dokuments durch CEN hergestellt worden sind.
Bétonnières portées - Prescriptions de sécurité
1.1 Le présent document spécifie les prescriptions de sécurité pour les bétonnières portées.
Le présent document couvre également les interfaces avec le camion ou la remorque sur le côté de l’unité de malaxage (mais pas le camion ou la remorque même).
NOTE 1 Camions ou remorques de catégorie N3 ou O4 construits spécifiquement pour le transport de marchandises et classés conformément à la Directive 2007/46/CE.
Le présent document ne couvre pas:
a) l’équipement additionnel (convoyeur à courroie, pompe à mortier, pompe à béton, flèche de coulage du béton);
b) les prescriptions pour l’utilisation dans les tunnels;
c) les bétonnières portées ou automotrices équipées de systèmes à chargement automatique;
d) les malaxeurs à déchargement par l’avant;
e) les unités de malaxage avec commande articulée;
f) systèmes de nettoyage du tambour des bétonnières portées;
g) source(s) d'énergie.
Le présent document n’aborde pas les véhicules porteurs, par exemple les camions, les tracteurs, les engins de construction et l’équipement mobile de manutention industrielle ou autres véhicules non automoteurs.
Le présent document ne contient aucune prescription couverte par les directives relatives à la construction des véhicules ou par les codes de la route nationaux.
NOTE 2 L’utilisation sur routes publiques est régie par des réglementations nationales.
1.2 Le présent document traite de tous les phénomènes dangereux, situations dangereuses et événements dangereux significatifs applicables aux bétonnières portées lorsqu’elles sont utilisées normalement et lorsqu’elles sont utilisées dans des conditions de mauvais usage raisonnablement prévisible par le constructeur (voir Annexe D). Le présent document spécifie les mesures techniques appropriées pour éliminer ou réduire les risques émanant des phénomènes dangereux significatifs pendant le transport, l’assemblage, le désassemblage, la désactivation, la mise au rebut, le fonctionnement et la maintenance de la bétonnière portée.
1.3 Le présent document ne s’applique pas aux machines qui sont fabriquées avant sa date de publication par le CEN.
Mešalec za beton (tovornjak) - Varnostne zahteve
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 12609:2021
01-marec-2021
Mešalec za beton (tovornjak) - Varnostne zahteve
Truck mixers - Safety requirements
Fahrmischer - Sicherheitsanforderungen
Bétonnières portées - Prescriptions de sécurité
Ta slovenski standard je istoveten z: EN 12609:2021
ICS:
53.060 Industrijski tovornjaki Industrial trucks
91.220 Gradbena oprema Construction equipment
SIST EN 12609:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 12609:2021
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SIST EN 12609:2021
EN 12609
EUROPEAN STANDARD
NORME EUROPÉENNE
January 2021
EUROPÄISCHE NORM
ICS 91.220
English Version
Truck mixers - Safety requirements
Bétonnières portées - Prescriptions de sécurité Fahrmischer - Sicherheitsanforderungen
This European Standard was approved by CEN on 13 January 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
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12609:2021 E
worldwide for CEN national Members.
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SIST EN 12609:2021
EN 12609:2021 (E)
Contents Page
European foreword . 5
Introduction . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions, symbols and abbreviated terms . 9
4 Safety requirements and/or protective measures . 11
4.1 General requirements . 11
4.1.1 General . 11
4.1.2 Mechanical hazards . 12
4.1.3 Electrical hazards . 13
4.1.4 Thermal hazards . 13
4.1.5 Noise . 13
4.1.6 Electromagnetic compatibility (EMC) . 13
4.2 Control system . 14
4.2.1 Stop system . 14
4.2.2 Multiple control stations . 14
4.2.3 Cable-less remote control . 15
4.3 Manual control devices for emergency operation . 15
4.4 Positioning of control devices . 15
4.4.1 Control devices at the work station . 15
4.4.2 Other control devices. 15
4.5 Working lights . 15
4.6 Additional removable equipment . 15
4.7 Interface mixer unit and truck or trailer . 15
4.8 Mixer drum . 16
4.8.1 Manhole . 16
4.8.2 Mixer drum-locking device . 16
4.8.3 Mixer drum opening . 16
4.9 Flip-over chute . 17
4.10 Swivel chute . 17
4.11 Mixer drum closure system . 17
4.12 Power transmission from the power source to the mixer drum drive system . 17
4.13 Water system . 17
4.14 Exhaust system of the auxiliary engine . 17
4.15 Platform at the charging hopper . 18
4.16 Tread at rear underrun protective device . 18
4.17 Visual aid . 18
5 Verification of safety requirements and/or protective measures . 19
6 Information for use . 20
6.1 General . 20
6.2 Instruction handbook . 20
6.2.1 General . 20
6.2.2 Noise . 21
6.2.3 Operation . 22
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6.2.4 Maintenance and repair . 23
6.3 Information and warnings . 24
6.3.1 Labelling for the control device . 24
6.3.2 Warnings . 24
6.4 Marking . 24
Annex A (informative) Figures . 25
A.1 Typical design . 26
A.2 Types of drive, diagrams . 27
A.3 Dimensions for access ladder to platform . 28
A.4 Minimum clearance 'a' depending on distance 'W' to the reference plane, according
to Table 1 . 29
A.5 Cross-sections (view from cabin side) of the truck mixer to indicate the positions of
the manhole when the mixer drum is locked by the mixer drum-locking device. 29
A.6 Fixed guard at mixer drum opening . 30
A.7 Minimum clearance between mixer drum roller cover and mixer drum track ring . 31
A.8 Minimum clearance between mixer drum and supporting arm . 32
A.9 Minimum clearance between mixer drum and charging hopper bracket . 33
A.10 Minimum clearance between mixer drum and discharge hopper . 34
A.11 Minimum clearance between mixer drum and guard rail at platform . 35
A.12 Minimum distance between mixer drum closure system and discharge hopper . 36
A.13 Minimum clearance between mixer drum and additional equipment . 37
A.14 Minimum clearance between mixer drum and rear splash guard . 39
A.15 Minimum dimensions of the visibility test rectangle (VTR) . 39
A.16 Example of flip-over chute. 40
A.17 Example of technical solution for enforced two-hand operation to bring the flip-over
chute to its lowered end position . 41
Annex B (normative) Noise-test code for truck mixers . 42
B.1 Scope . 42
B.2 Determination of the A-weighted sound-power level . 42
B.2.1 General . 42
B.2.2 Measurement surface and microphone positions . 43
B.2.3 Period of observation . 43
B.3 Determination of the A-weighted emission sound pressure level at the work station . 43
B.3.1 General . 43
B.3.2 Machine work station . 43
B.3.3 Period of observation . 43
B.4 Measurement procedure and operating conditions . 44
B.4.1 Specific measurement procedure for truck mixers powered by a truck engine . 44
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B.4.2 Measurement procedure for mixer units not powered by a truck engine . 44
B.4.3 Operating conditions during test . 44
B.4.4 Fan speed . 44
B.5 Information to be recorded during the test. 44
B.6 Information to be reported . 44
B.7 Declaration and verification of noise emission values . 45
Annex C (informative) Example of a noise emission declaration . 46
Annex D (informative) List of significant hazards . 47
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of EU Directive 2006/42/EC aimed to be covered . 50
Bibliography . 53
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SIST EN 12609:2021
EN 12609:2021 (E)
European foreword
This document (EN 12609:2021) 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 July 2021, and conflicting national standards shall be
withdrawn at the latest by July 2021.
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.
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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EN 12609:2021 (E)
Introduction
This document is a type-C standard as stated in EN ISO 12100:2010.
This document is of relevance, in particular, for the following stakeholder groups representing the market
players with regard to machinery safety:
a) machine manufacturers (small, medium and large enterprises);
b) 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:
a) machine users/employers (small, medium and large enterprises);
b) machine users/employees (e.g. trade unions, organizations for people with special needs);
c) service providers, e.g. for maintenance (small, medium and large enterprises);
d) 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 type-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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EN 12609:2021 (E)
1 Scope
1.1 This document specifies the safety requirements for truck mixers.
This document also covers the interface between the mixing unit and the truck or trailer (but not the
truck or trailer itself).
NOTE 1 Truck or trailer constructed primarily for the carriage of goods as classified according to directive
2007/46/EC, category N3 or O4.
This document does not cover:
a) additional equipment (conveyor belt, mortar pump, concrete pump, concrete-placing boom);
b) requirements for operation in tunnels;
c) truck or self-propelled mixers equipped with self-loading systems;
d) front-discharge mixers;
e) mixing units with articulated steering;
f) truck mixer drum cleaning systems;
g) energy source(s).
This document does not deal with carrier vehicles, e.g. trucks, tractors, construction machinery and
mobile industrial handling equipment or other self-propelled vehicles.
This document does not include requirements which are covered in directives related to the construction
of vehicles or national road regulations.
NOTE 2 The use in public road traffic is governed by the national regulations.
1.2 This document deals with all significant hazards, hazardous situations and events relevant to truck
mixers when they are used as intended and under the conditions of misuse which are reasonably
foreseeable by the manufacturer (see Annex D). This document specifies the appropriate technical
measures to eliminate or reduce risks arising from the significant hazards during transportation,
assembly, dismantling, disabling, scrapping, operation and maintenance of the truck mixer.
1.3 This document is not applicable to machines 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 60204-1:2006, Safety of machinery — Electrical equipment of machines — Part 1: General
requirements (IEC 60204-1:2005)
EN 61000-6-2:2005, Electromagnetic compatibility (EMC) — Part 6-2: Generic standards — Immunity
standard for industrial environments (IEC 61000-6-2:2005)
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EN 61000-6-2:2005/AC:2005, Electromagnetic compatibility (EMC) — Part 6-2: Generic Standards —
Immunity standard for industrial environments (IEC 61000-6-2:2005)
EN ISO 2867:2011, Earth-moving machinery — Access systems (ISO 2867:2011)
EN ISO 3744:2010, Acoustics — Determination of sound power levels and sound energy levels of noise
sources using sound pressure — Engineering methods for an essentially free field over a reflecting plane
(ISO 3744:2010)
EN ISO 4413:2010, Hydraulic fluid power — General rules and safety requirements for systems and their
components (ISO 4413:2010)
EN ISO 4414:2010, Pneumatic fluid power — General rules and safety requirements for systems and their
components (ISO 4414:2010)
EN ISO 4871:2009, Acoustics — Declaration and verification of noise emission values of machinery and
equipment (ISO 4871:1996)
EN ISO 11201:2010, Acoustics — Noise emitted by machinery and equipment — Determination of emission
sound pressure levels at a work station and at other specified positions in an essentially free field over a
reflecting plane with negligible environmental corrections (ISO 11201:2010)
EN ISO 11688-1:2009, Acoustics — Recommended practice for the design of low-noise machinery and
equipment — Part 1: Planning (ISO/TR 11688-1:1995)
EN ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk
reduction (ISO 12100:2010)
EN ISO 13766-1:2018, Earth-moving and building construction machinery — Electromagnetic
compatibility (EMC) of machines with internal electrical power supply — Part 1: General EMC requirements
under typical electromagnetic environmental conditions (ISO 13766-1:2018)
EN ISO 13766-2:2018, Earth-moving and building construction machinery — Electromagnetic
compatibility (EMC) of machines with internal electrical power supply — Part 2: Additional EMC
requirements for functional safety (ISO 13766-2:2018)
EN ISO 13849-1:2015, Safety of machinery — Safety-related parts of control systems — Part 1: General
principles for design (ISO 13849-1:2015)
EN ISO 13850:2015, Safety of machinery — Emergency stop function — Principles for design
(ISO 13850:2015)
EN ISO 13857:2008, Safety of machinery — Safety distances to prevent hazard zones being reached by
upper and lower limbs (ISO 13857:2008)
EN ISO 14120:2015, Safety of machinery — Guards — General requirements for the design and
construction of fixed and movable guards (ISO 14120:2015)
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3 Terms, definitions, symbols and abbreviated terms
For the purposes of this document, the terms and definitions given in EN ISO 12100:2010 and the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1
mixing unit
assembly of components including rotary drum-type mixer designed for charging, mixing, temporary
storage and discharging of concrete, mortars and mineral building materials with a maximum specific
3
weight of 2 500 kg/m
Note 1 to entry: The main components of the mixing unit are defined in 3.3.
3.2
truck mixer
mixing unit mounted on a commercial truck or trailer
3.3
mixing unit components
3.3.1
basic frame
structure connecting the front and the rear support of the mixer drum
3.3.2
mixer drum
main element of the mixer, rotating during operation, that contains fins, for mixing charging and
discharging
3.3.3
mixer drum opening
opening for charging and discharging the mixer drum
3.3.4
front support
structure supporting the mixer drum at its closed side (front side)
3.3.5
rear support
structure supporting the mixer drum at the side of the mixer drum opening
Note 1 to entry: The charging hopper and discharge components are located at the rear support.
3.3.6
charging hopper
structure to charge the mixer drum
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3.3.7
discharge components
components to direct and distribute the material being discharged from the mixer drum, e.g. discharge
hopper, swivel chute, flip-over chute; extension chute (see Figure A.1)
3.3.8
mixer drum drive
energy transmission for the rotation of the mixer drum, excluding the energy source(s), e.g. truck engine,
auxiliary engine, batteries
3.3.9
water system
installation for adding water and for cleaning, e.g. consisting of a water tank, distribution line system,
valves, and a water meter
Note 1 to entry: The water system is optional and usually powered pneumatically or pressurized by a water
pump.
3.3.10
control station
unit with control devices for operating the functions of the truck mixer (e.g. rotation direction of mixer
drum, rotating speed, stop function of the mixer drum)
Note 1 to entry: The control station can be a remote-control station with cable or cable-less.
3.3.11
work station
place where the main control station of the mixer drum drive is arranged, normally at the rear of the
truck mixer
Note 1 to entry: The work station is for operating the charging, mixing and discharging. The operator is either
standing on ground level (see Figure A.1) or on the tread at the rear underrun protective device. Additional control
stations can be provided, e.g. in the cabin of the truck.
3.3.12
platform
elevated stand at the charging hopper of the truck mixer for cleaning and inspection (see Figure A.1)
3.3.13
mixer drum closure system
device to cover the mixer drum opening partly or completely to prevent spilling of concrete, mortars or
mineral building materials
Note 1 to entry: The mixer drum closure system is optional.
3.3.14
supporting arms
superstructure for carrying the charging hopper and discharge components and the platform (see
Figure A.1)
3.3.15
rear splash guard
device below the mixer drum preventing the mixer drum from getting dirty (see Figure A.1)
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3.4
rated capacity of the truck mixer
maximum volume of concrete, mortars and mineral building materials the truck mixer is designed for,
3
with a maximum specific weight of 2 500 kg/m
3.5
interface
all connections that allow the transfer of physical forces, energies, commands and/or information (e.g.
mechanical, hydraulic, pneumatic, electrical, electronical) between the mixing unit and the truck or trailer
on which it is mounted
3.6
operator
person authorised and trained to operate a truck mixer
Note 1 to entry: In general, the mixer operator is also the driver of the truck mixer.
3.7
normal operation
operation of the machine with all systems in function
3.8
emergency operation
operation of the machine with a system failure
Note 1 to entry: An example for an emergency operation: In case of energy source(s) or control system failure, a
separate hydraulic power pack is connected, and the mixing unit is operated by manual valve actuation under
circumvention of the emergency-stop system.
3.9
visual aid
system that provides visual information without warning
Note 1 to entry: The system generally includes a monitor and camera.
3.10
visibility test rectangle (VTR)
rectangle located on the plane ground as reference, aligned symmetrically to the longitudinal axis of the
truck mixer in order to test the visual aid (see Figure A.15)
3.11
truck mixer drum cleaning system
separate machine to remove residual concrete from the inside of the mixer drum
4 Safety requirements and/or protective measures
4.1 General requirements
4.1.1 General
Machinery 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 ISO
...
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