SIST EN 13570:2005+A1:2010
(Main)Food processing machinery - Mixing machines - Safety and hygiene requirements
Food processing machinery - Mixing machines - Safety and hygiene requirements
1.1 This European Standard specifies safety and hygiene requirements to minimise the hazards which can arise during the commissioning, the use and the maintenance of mixing machines and their accessories intended to be used in sausage kitchens and industrial operations.
This European Standard deals with all significant hazards, hazardous situations and events relevant to mixing machines, when they are used !as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer (see Clause 4)".
This European standard is not applicable to mixing machines which are manufactured before the date of publication of this European Standard by CEN.
1.2 This European Standard covers the following types of mixing machines:
- Mixing machines with a tilting container, one or several mixing shafts
- Mixing machines with a stationary mixing container, front face or bottom discharge opening
- Mixing machines with a container and loading device
- Mixing machines with a container, mixing shaft(s), screw conveyor and loading device
The mixing machines are constructed of a machine frame, a trough-shaped mixing container, one or several mixing shafts, an associated drive and electrical, hydraulic and pneumatic components, depending on machine type.
The mixing shaft can be equipped with wings, screws, rods, paddles or the like.
Mixing machines may be equipped e. g. with
- cover over the top of the mixing container,
- pipe connections for gases, steam, water or vacuum,
- protective hood over the front face discharge opening,
- lifting devices for mixing shaft,
- loading device,
- screw conveyor at the discharge opening.
KEY
1 cover
2 mixing container
3 mixing shaft
4 front-face discharge opening
5 bottom discharge opening
Figure 1 - Components of a mixing machine
1.3 Intended use
The fresh or frozen meat, meat product, meat pieces or fish, salt, spices and other additives are loaded into the mixing container by hand or by means of a loa
Nahrungsmittelmaschinen - Mischmaschinen - Sicherheits- und Hygieneanforderungen
1.1 Diese Europäische Norm behandelt Sicherheits- und Hygieneanforderungen zur Minimierung von Gefährdungen, die auftreten können während der Aufstellung, des Gebrauchs und der Wartung von Mischmaschinen und deren Zubehör, wenn sie in Wurstküchen und Industriebetrieben benutzt werden.
Diese Europäische Norm behandelt alle signifikanten Gefährdungen, gefährlichen Situationen und Ereignisse bezüglich Mischmaschinen, !wenn sie bestimmungsgemäß und unter Bedingungen von durch den Hersteller vernünftigerweise vorhersehbaren Fehlanwendungen verwendet werden (siehe Abschnitt 4)".
Diese Europäische Norm ist nicht anwendbar auf Mischmaschinen, die vor dem Ausgabedatum dieses Dokuments durch CEN hergestellt wurden.
1.2 Diese Europäische Norm umfasst folgende Bauarten von Mischmaschinen:
- Mischmaschinen mit kippbarem Behälter, einer oder mehreren Mischwellen;
- Mischmaschinen mit feststehendem Behälter, Auslauföffnung in der Stirnseite oder im Boden;
- Mischmaschinen mit Behälter und Beschickungseinrichtung;
- Mischmaschinen mit Behälter, Mischwelle(n), Transportschnecke und Beschickungseinrichtung.
Die Mischmaschinen bestehen aus Maschinenständer, trogförmigem Mischbehälter, einer oder mehreren Mischwellen, zugehörigem Antrieb und elektrischen, hydraulischen und pneumatischen Komponenten, abhängig von der Maschinenart.
Die Mischwelle kann mit Flügeln, Schnecken, Stangen, Paddeln oder dergleichen ausgestattet sein.
Mischmaschinen dürfen ausgerüstet sein z. B. mit
- Deckel an der Mischbehälteröffnung,
- Anschlüssen für Gase, Dampf, Wasser oder Vakuum,
- Schutzhaube an der stirnseitigen Auslauföffnung,
- Hebeeinrichtung für Mischwelle,
- Beschickungseinrichtung,
- Schneckenförderer an der Auslauföffnung.
Machines pour les produits alimentaires - Malaxeurs - Prescriptions relatives à la sécurité et à l'hygiène
1.1 La présente Norme européenne spécifie les prescriptions relatives à la sécurité et l’hygiène pour minimiser les phénomènes dangereux qui peuvent survenir durant la mise en service, l’utilisation et la maintenance des malaxeurs et de leurs accessoires destinés à être utilisés dans les charcuteries et les entreprises industrielles.
La présente Norme européenne traite tous les phénomènes dangereux significatifs, les situations et les événements dangereux associés aux malaxeurs, !lorsqu’ils sont utilisés normalement et dans les conditions de mauvaise utilisation raisonnablement prévisibles par le fabricant (voir Article 4)".
La présente Norme européenne ne s’applique pas aux malaxeurs fabriqués avant la date de publication de la présente Norme européenne par le CEN.
1.2 La présente Norme européenne concerne les types de malaxeurs suivants :
- malaxeurs avec cuve basculante, un ou plusieurs arbres mélangeurs ;
- malaxeurs avec cuve mélangeuse fixe, orifice d’évacuation frontal ou inférieur ;
- malaxeurs avec cuve et système de chargement ;
- malaxeurs avec cuve, arbre(s) mélangeur(s), vis transporteuse et système de chargement.
Les malaxeurs sont composés d’un bâti, une cuve mélangeuse en forme d’auge, un ou plusieurs arbres mélangeurs, un système d’entraînement associé et des composants électriques, hydrauliques et pneumatiques en fonction du type de machine.
L’arbre mélangeur peut être équipé de pales, de vis, de tiges, d’aubes ou composants équivalents.
Les malaxeurs peuvent être équipés par exemple :
- d’un couvercle sur le haut de la cuve mélangeuse ;
- de raccords pour les gaz, la vapeur, l’eau ou le vide ;
- d’un capot de protection sur l’orifice d’évacuation frontal ;
- de dispositifs de levage pour l'arbre mélangeur ;
- d’un système de chargement ;
- d’un convoyeur à vis au niveau de l’orifice d’évacuation.
Stroji za predelavo hrane - Mešalni stroji - Varnostne in higienske zahteve (vključno z dopolnilom A1)
Ta evropski standard določa varnostne in higienske zahteve za zmanjševanje nevarnosti, ki lahko nastanejo med zagonom, uporabo in vzdrževanjem mešalnih strojev in njihovega pribora, ki so namenjeni za uporabo v kuhinjah za izdelavo klobas in industrijskih operacijah. Ta evropski standard obravnava velike nevarnosti, nevarne situacije in primere, ki se nanašajo na mešalne stroje, kadar se uporabljajo !kot predvideno in pod pogoji napačne uporabe, ki jih razumno predvidi proizvajalec. Ta evropski standard ne velja za mešalne stroje, ki so proizvedeni pred datumom, ko je CEN objavil ta evropski standard. Ta evropski standard zajema naslednje vrste mešalnih strojev: - mešalni stroji z nagibno posodo, eno ali več mešal; – mešalni stroji s stacionarno mešalno posodo, odprtina na sprednji strani ali na dnu; – mešalni stroji s posodo in napravo za polnjenje; – mešalni stroji s posodo, mešalom ali mešali, vijačnim transporterjem in napravo za polnjenje. Mešalni stroji so zgrajeni iz ogrodja stroja, mešalne posode v obliki korita, enega ali več mešal, pripadajočega pogona in električnih, hidravličnih in pnevmatskih sestavnih delov, glede na vrsto stroja. Mešalo ima lahko krilca, vijake, palice, pedala ali podobno. Mešalni stroji so lahko opremljeni npr. s/z – pokrovom čez vrh mešalne posode, - cevnimi priključki za pline, paro, vodo ali vakuum, varovalnim okrovom čez odprtino za odvajanje na sprednji strani, - napravami za dvigovanje mešala, - napravo za polnjenje, - vijačnim transporterjem na odprtini za odvajanje.
General Information
- Status
- Published
- Publication Date
- 14-Sep-2010
- Technical Committee
- VSN - Safety of machinery
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 02-Jul-2010
- Due Date
- 06-Sep-2010
- Completion Date
- 15-Sep-2010
- Directive
- 98/37/EC - Machinery
Relations
- Replaces
SIST EN 13570:2005 - Food processing machinery - Mixing machines - Safety and hygiene requirements - Effective Date
- 01-Oct-2010
- Consolidates
SIST EN 13570:2005 - Food processing machinery - Mixing machines - Safety and hygiene requirements - Effective Date
- 18-Jan-2023
Overview
EN 13570:2005+A1:2010 - "Food processing machinery - Mixing machines - Safety and hygiene requirements" is a CEN Type C standard that defines safety and hygiene requirements for mixing machines used in sausage kitchens and industrial food operations. It covers machines manufactured after the date of publication and addresses hazards during commissioning, normal use and reasonably foreseeable misuse. The standard also includes Amendment 1 (2010) and an informative Annex ZA linking the standard to EU Directive 2006/42/EC.
Key topics and technical requirements
- Machine types covered: tilting containers, stationary containers with front-face or bottom discharge, machines with loading devices, and machines with mixing shafts plus screw conveyors.
- Components addressed: trough-shaped mixing containers, mixing shafts (wings, paddles, screws), drive systems, electrical/hydraulic/pneumatic components, covers, protective hoods, loading devices and screw conveyors.
- Hazard identification: zones and significant hazards (entanglement, shearing, severing, crushing, drawing-in, impact, electrical and hydraulic risks, loss of stability).
- Safety measures: requirements for guards, interlocking devices, protective hoods, mechanical trip bars, interlocked steps and safety devices for container position; design and verification of protective measures are required.
- Hygiene and cleanability: normative guidance (Annex B) on design principles to ensure surfaces, joints and geometry support effective cleaning and prevent contamination.
- Verification and testing: procedures for verifying safety and hygiene measures (including a noise test code in Annex A) and requirements for information for use (instructions, maintenance and risk assessment).
- Risk assessment: conformity requires a risk assessment per EN ISO 14121-1 / EN ISO 12100 to identify all relevant hazards and validate protective measures.
Practical applications
- For machine manufacturers: use EN 13570 to design mixing machines that meet European safety and hygiene expectations for meat and fish processing, and to demonstrate conformity with essential requirements of the Machinery Directive.
- For food processors and plant engineers: apply the standard to select, commission and maintain mixers safely, specifying hygienic construction, guarding and access controls.
- For safety engineers, compliance officers and certifiers: use the standard to evaluate guarding, control systems, electrical safety and cleaning design during conformity assessment and audits.
- For maintenance teams and operators: the standard defines safe maintenance practices, protective devices and operational precautions, including foreseeable misuse scenarios (e.g., cleaning with pressurised water).
Related standards
EN 13570 references relevant standards such as:
- EN ISO 12100 (machine safety - risk assessment)
- EN 1672-2 (food machinery - hygiene requirements)
- EN 60204-1 (electrical equipment of machines)
- EN ISO 13849-1 (safety-related parts of control systems)
- EN 953 (guards) and EN ISO 14121-1 (risk assessment)
Keywords: EN 13570, mixing machines safety, food processing machinery, hygiene requirements, mixing shaft, discharge opening, guards, interlocks, cleanability, sausage kitchens.
Frequently Asked Questions
SIST EN 13570:2005+A1:2010 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Food processing machinery - Mixing machines - Safety and hygiene requirements". This standard covers: 1.1 This European Standard specifies safety and hygiene requirements to minimise the hazards which can arise during the commissioning, the use and the maintenance of mixing machines and their accessories intended to be used in sausage kitchens and industrial operations. This European Standard deals with all significant hazards, hazardous situations and events relevant to mixing machines, when they are used !as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer (see Clause 4)". This European standard is not applicable to mixing machines which are manufactured before the date of publication of this European Standard by CEN. 1.2 This European Standard covers the following types of mixing machines: - Mixing machines with a tilting container, one or several mixing shafts - Mixing machines with a stationary mixing container, front face or bottom discharge opening - Mixing machines with a container and loading device - Mixing machines with a container, mixing shaft(s), screw conveyor and loading device The mixing machines are constructed of a machine frame, a trough-shaped mixing container, one or several mixing shafts, an associated drive and electrical, hydraulic and pneumatic components, depending on machine type. The mixing shaft can be equipped with wings, screws, rods, paddles or the like. Mixing machines may be equipped e. g. with - cover over the top of the mixing container, - pipe connections for gases, steam, water or vacuum, - protective hood over the front face discharge opening, - lifting devices for mixing shaft, - loading device, - screw conveyor at the discharge opening. KEY 1 cover 2 mixing container 3 mixing shaft 4 front-face discharge opening 5 bottom discharge opening Figure 1 - Components of a mixing machine 1.3 Intended use The fresh or frozen meat, meat product, meat pieces or fish, salt, spices and other additives are loaded into the mixing container by hand or by means of a loa
1.1 This European Standard specifies safety and hygiene requirements to minimise the hazards which can arise during the commissioning, the use and the maintenance of mixing machines and their accessories intended to be used in sausage kitchens and industrial operations. This European Standard deals with all significant hazards, hazardous situations and events relevant to mixing machines, when they are used !as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer (see Clause 4)". This European standard is not applicable to mixing machines which are manufactured before the date of publication of this European Standard by CEN. 1.2 This European Standard covers the following types of mixing machines: - Mixing machines with a tilting container, one or several mixing shafts - Mixing machines with a stationary mixing container, front face or bottom discharge opening - Mixing machines with a container and loading device - Mixing machines with a container, mixing shaft(s), screw conveyor and loading device The mixing machines are constructed of a machine frame, a trough-shaped mixing container, one or several mixing shafts, an associated drive and electrical, hydraulic and pneumatic components, depending on machine type. The mixing shaft can be equipped with wings, screws, rods, paddles or the like. Mixing machines may be equipped e. g. with - cover over the top of the mixing container, - pipe connections for gases, steam, water or vacuum, - protective hood over the front face discharge opening, - lifting devices for mixing shaft, - loading device, - screw conveyor at the discharge opening. KEY 1 cover 2 mixing container 3 mixing shaft 4 front-face discharge opening 5 bottom discharge opening Figure 1 - Components of a mixing machine 1.3 Intended use The fresh or frozen meat, meat product, meat pieces or fish, salt, spices and other additives are loaded into the mixing container by hand or by means of a loa
SIST EN 13570:2005+A1:2010 is classified under the following ICS (International Classification for Standards) categories: 67.260 - Plants and equipment for the food industry. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 13570:2005+A1:2010 has the following relationships with other standards: It is inter standard links to SIST EN 13570:2005, SIST EN 13570:2005. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN 13570:2005+A1:2010 is associated with the following European legislation: EU Directives/Regulations: 2006/42/EC, 98/37/EC, EUR-PUB; Standardization Mandates: M/396. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Nahrungsmittelmaschinen - Mischmaschinen - Sicherheits- und HygieneanforderungenMachines pour les produits alimentaires - Malaxeurs - Prescriptions relatives à la sécurité et à l'hygièneFood processing machinery - Mixing machines - Safety and hygiene requirements67.260Tovarne in oprema za živilsko industrijoPlants and equipment for the food industryICS:Ta slovenski standard je istoveten z:EN 13570:2005+A1:2010SIST EN 13570:2005+A1:2010en,fr,de01-oktober-2010SIST EN 13570:2005+A1:2010SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13570:2005+A1
June 2010 ICS 67.260 Supersedes EN 13570:2005English Version
Food processing machinery - Mixing machines - Safety and hygiene requirements
Machines pour les produits alimentaires - Malaxeurs - Prescriptions relatives à la sécurité et à l'hygiène
Nahrungsmittelmaschinen - Mischmaschinen - Sicherheits-und Hygieneanforderungen This European Standard was approved by CEN on 25 March 2005 and includes Amendment 1 approved by CEN on 6 May 2010.
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 responsibility 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, Croatia, 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 © 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13570:2005+A1:2010: ESIST EN 13570:2005+A1:2010
Noise test code for mixing machines (grade 2) . 33Annex B (normative)
Design principles to ensure cleanability of mixing machines . 35Annex C (normative)
Common hazards for food processing machines and reduction requirements applicable to mixing machines . 40Annex ZA (informative)
!Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC" . 42Bibliography . 43
Figures Figure 1 — Components of a mixing machine . 7 Figure 2 — Danger zones on mixing machines . 10 Figure 3 — Mixing machines with a cover at the mixing container - safety dimensions . 15 Figure 4 — Mixing machine with open mixing container, mechanical bar, light barrier
and interlocking step at the operator side – safety dimensions . 17 Figure 5 — Mixing machine with open mixing container, protective grid and fixed step
at the operator side – safety dimensions . 18 Figure 6 — Discharge outlet at the mixing machine – protective hood . 18 Figure 7 — Safety device for container position . 21 Figure 8 — ON/OFF switch with hood . 23 Figure 9 — Transport carriage for screw conveyor . 25 Figure 10 — Hygiene areas on mixing machines with front face discharge outlet . 26 SIST EN 13570:2005+A1:2010
cover over the top of the mixing container, pipe connections for gases, steam, water or vacuum, protective hood over the front face discharge opening, lifting devices for mixing shaft, loading device, screw conveyor at the discharge opening. SIST EN 13570:2005+A1:2010
KEY 1 cover 2 mixing container 3 mixing shaft 4 front-face discharge opening 5 bottom discharge opening Figure 1 — Components of a mixing machine 1.3 Intended use The fresh or frozen meat, meat product, meat pieces or fish, salt, spices and other additives are loaded into the mixing container by hand or by means of a loading device and mixed by the mixing unit. The discharge outlet may be located at the bottom or the front face and can either be a slide, a flap, a pipe, a pump or a screw. During the production of this standard the following assumptions were made: Mixing machines are installed at a sufficiently lighted place. They are used only by designated and skilled operators. Although it should be advised against, the standard, taking into account practice, deals with the hazards due to cleaning with pressurised water. 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. !EN 614-1:2006, Safety of machinery — Ergonomic design principles — Part 1: Terminology and general principles SIST EN 13570:2005+A1:2010
the lifting and tilting of
trolleys and containers 3.5 product container device for holding products to be processed 3.6 feed intake cover movable device with safety function at the feed intake 3.7 trolley wheel-mounted device for holding the products to be processed 3.8 design dimension sum of the dimensions measured from the floor, or in case of steps, intermediate steps or working platforms: from the standing place, to the edge of the mixing container and from the edge of the mixing container to the next danger point in the mixing container 3.9 mixing container container for holding products to be processed 3.10 mixing shaft rotating component in the mixing container for mixing the product 3.11 mechanical trip bar device with safety function 3.12 protective grid (mixing container) device on the opening of the mixing container with safety function 3.13 protective hood (discharge outlet) device over the discharge outlet with safety function SIST EN 13570:2005+A1:2010
step in horizontal position, causing stopping of the machine 4 List of significant hazards 4.1 General This Clause and Annex C contains all the significant hazards, hazardous situations and events, as far as they are dealt with in this standard, identified by a risk assessment significant for this type of machine and which require action identified to eliminate or reduce risk. Before using this standard it is important to carry out a risk assessment according to !EN ISO 14121-1" of the mixing machine to check that it has identified all significant hazards, hazardous situations and events in this Clause.
KEY 1 Zone 1 2
Zone 2 3
Zone 3 4
Zone 4 5
Zone 5 6
Zone 6 7
Zone 7 8
Zone 8 9
Zone 9 10
Zone 10 Figure 2 — Danger zones on mixing machines SIST EN 13570:2005+A1:2010
4.2.1 Mixing machines with a container, one or several mixing shafts and feeding screw Zone 1 Rotating feeding screw and/or mixing shaft in mixing container. Hazards from entanglement, shearing or severing to fingers, hand or fore arm. 4.2.2 Discharge outlet on mixing machines with a stationary mixing container, one or several mixing shafts, front face or bottom discharge Zone 2 Rotating mixing shaft(s) in mixing container, access through discharge outlet or draining outlet. Hazards from entanglement, shearing or severing to fingers, hand or forearm. Zone 4 Powered closure of discharge flap or slide. Crushing hazard to fingers, hand or forearm. 4.2.3 Drive units Zone 6 Drive of mixing shaft. Hazards from crushing, shearing or drawing-in to fingers or hand. Zone 5 Drive mechanism used to raise or lower the protective hood on discharge. Hazards from crushing or shearing of upper limbs. 4.2.4 Machine components e. g. cover over mixing container Zone 3 Unintentional shutting of closing machine components and intentional closing of machine components. Hazards from crushing to fingers or hand. 4.2.5 Loading device on mixing machines Zone 7 Space below transport carriage or container. Hazards from trapping or crushing at floor level during descent to the body. Hazards from impact during uncontrolled descent e. g. in the case of mechanical failures to the body. SIST EN 13570:2005+A1:2010
Hazard of suffocation, SIST EN 13570:2005+A1:2010
EN ISO 13857 and EN ISO 14121-1, the manufacturer shall carry out a risk assessment to establish the requirements of the type B-standard. This specific risk assessment shall be part of the general risk assessment of the machine." Where the means of reducing the risk is by the physical arrangement or positioning of the machine the manufacturer shall include in the information for use a reference to the reduction means to be provided, and to any limiting value of the requirement, and, if appropriate, to the means of verification. SIST EN 13570:2005+A1:2010
EN ISO 13849-1:2008." 5.2.3.2 Mixing machines with a cover at the mixing container A cover shall be provided at the mixing container. The cover shall be interlocked. When the machine is running without product, the mixing shaft shall come to a standstill within 2 s after the front edge of the guard has been raised 50 mm (opening travel). !The interlocking system of the movable cover shall comply with the introductory requirements of 5.2.1 and the safety related parts of the control device shall present at least Performance Level “c” of
EN ISO 13849-1:2008." Openings in the cover shall comply with EN 294:1992, table 4.
KEY 1
Cover interlocked, opening travel Figure 3 — Mixing machines with a cover at the mixing container - safety dimensions 5.2.3.3 Design of mixing machines with safety distances and additional measures 5.2.3.3.1 General On mixing machines which cannot use an interlocked cover or a light curtain because they would interrupt continuous working, the following measures are necessary: SIST EN 13570:2005+A1:2010
≥ 1100 mm (see figure 4). 5.2.3.3.3 Additional measures With a height H1 > 1600 mm, means shall be provided (e. g. a mirror or a fill level indicator) for allowing a verification of the product level in the hopper. The outside walls shall be designed (e. g. vertical and smooth) to prevent the operator climbing on the machine. This also applies to interlocked steps in their folded position. a) Interlocked step If danger points in the feed intake hopper can be reached from steps or platforms (design measure < 2250 mm). the steps or treads of platforms shall be foldable and interlocked for preventing the functioning of the machine when they are in their protective position. When the mixing machine is running without product, the mixing shaft shall come to a standstill within 2 s after the interlocking system has been actuated by moving the step into its protective position.
!The interlocking system of the movable step shall comply with the introductory requirements of 5.2.1 and the safety-related components of the control system shall present at least Performance Level “c of
EN ISO 13849-1:2008." The standing area of steps shall have a width ≥ 500 mm and a length ≥ 400 mm and a toe rail of a height of 15 mm. If the standing area is < 500 mm above ground, an area of a width ≥ 400 mm and a length ≥ 350 mm is sufficient. The standing area shall be of the non-slip type. Platforms and accessible areas shall have of a width B ≥ 500 mm. The length of the platform shall correspond to the length of the hopper. Platforms which are located > 500 mm above ground shall be fitted with safety devices to prevent falls. Intermediate steps, stairs or ladders and grab handles shall be provided if the step-up height to the step or to the platform is > 500 mm. The standing areas and treads shall be sufficiently large and of the non-slip type and arranged at identical distances from one another. The standing area of the intermediate step shall have a width of ≥ 300 mm and a length of ≥ 200 mm. Treads of ladders shall have a length of ≥ 500 mm and a width of ≥ 80 mm. A ladder shall be arranged at an angle of < 70
to the horizontal. SIST EN 13570:2005+A1:2010
KEY 1 mechanical bar 2 step, interlocked
H1
≥ 1600 mm H2
≥ 1100 mm H3
≥
500 mm with intermediate step H1 + D + E
≥ 2250 mm H3 + H2 + D1 + E1 ≥ 2250 mm Figure 4 — Mixing machine with open mixing container, mechanical bar, light barrier and interlocking step at the operator side – safety dimensions b) Mechanical trip bar/light barrier or movable protective grid on mixing container edge, running round all sides At the hopper edge there shall be, at all sides alternatively, a mechanical trip bar, a light barrier or a protective grid with trip function (see figures 4 and 5). Therefore the design dimension from the standing area (floor or fixed step or fixed platform) across the upper edge of the protection equipment at the hopper edge up to the next hazard point in the hopper shall be > 2250 mm. !The interlocking of the mechanical trip bar or the movable protective grid shall comply with the introductory requirements of 5.2.1 and the safety-related components of the control system shall present at least Performance Level “c” of EN ISO 13849-1:2008." The design of the light barrier shall be in accordance with ESPE type 2 of !EN 61496-1:2007". SIST EN 13570:2005+A1:2010
!Dimensions in millimetres" KEY 1 movable protective grid 2 working platform, fixed H1 ≥
1600 mm H2 ≥
1100 mm H3 ≥
500 mm with intermediate step H4 ≥
1600 mm H1 + D + E ≥
2250 mm H4 + D1 + E ≥
2250 mm
Figure 5 — Mixing machine with open mixing container, protective grid and fixed step at the operator side – safety dimensions Figure 6 — Discharge outlet at the mixing machine – protective hood
5.2.4 Discharge outlet on mixing machines with front face or bottom discharge outlet Zone 2 Access to the danger points on the mixing shaft behind the discharge outlet shall be protected. This shall be achieved by one of the following measures: On mixing machines, the discharge outlet shall be protected by the use of a guard (e. g. protective hood). The guard shall project ≥ 550 mm in the operating direction and be provided with a lateral projection. The distance between the trolley or container and the protective hood shall be ≤ 50 mm (see figure 6). The lateral access shall be prevented. The mixing shaft shall come to a standstill at < 2 s, or the discharge flaps shall be closed within < 2 s, after the protective hood or the trolley or the container has been moved 50 mm out of the protective position. When using grill-shaped protective hoods or protective hoods of a rod-shaped material, the safety distances shall comply with !EN ISO 14121-1:2007, Table 4". The protective hood or the discharge flaps shall be interlocked with the functioning of the machine. For requirements relating to the interlocking system of the movable protective hood, see the introductory requirements of 5.2. SIST EN 13570:2005+A1:2010
use of a hold to-run control for the lowering of the load bearing parts, use of gravity only for lowering the lifting device, a special device on the machine or lift-tilt device so that powered descent of the load-bearing device onto an obstruction cannot cause instability. This can be e. g. a level switch, to automatically stop the descent. Where the machine or the lift tilt device is fixed to the floor, overload conditions to the load bearing components of the lift tilt device shall be prevented in the event of the power operated loading device meeting an obstruction. This can be achieved e. g. by a slipping clutch or overload cut out to automatically stop the lowering motion. 5.2.7.3.2 Lifting device 5.2.7.3.2.1 Lifting devices shall be designed to prevent trolleys or containers from falling off. This can be achieved by a fixing device at the loading device for trolleys and containers 5.2.7.3.2.2 Lifting devices shall be designed that trolleys or containers do not create danger points during up and down movements. This can be achieved by the observance of all following measures: distance between the loading device, trolley and the machine base shall be > 120 mm, distance between the trolley or loading device and the feed intake hopper edge > 25 mm. By using a hold-to-run control these distances are not required. 5.2.7.3.3 Mast-type lift-tilt device The danger points between the load bearing device and the mast on the side opposite the load bearing device shall be protected if the distance between the load bearing device and the mast is < 120 mm. If the tilt range of the load bearing device is > 2000 mm or more above the floor, no guarding is required if the distance between the load bearing device and the mast is > 60 mm. During the climb of the loading device the mixing shafts shall stand still. 5.2.7.3.4 Lift-tilt device for feed heights > 2500 mm The path of movement of the load bearing device, with the exception of the run-in and run-out opening, shall be protected by means of a distance guard (e. g. a protective fence). An electrosensitive protective device (e. g. a light barrier, mechanical bar or flap) shall be fitted on the upper edge of the run-in and run-out opening to prevent lifting of incorrectly positioned trolleys or containers (see figure 7). For requirements relating to the interlocking system of the mechanical bar or mechanical flap as well as the light barrier, see Clause 5.2.3 and 5.2.3.3.
KEY 1 cover designed as a grid 2 mechanical bar, pivoted 3 container 4 mechanical flap Figure 7 — Safety device for container position 5.2.7.3.5 Lowering velocity of load bearing device The lowering velocity shall be ≤ 0,4 m/s when it is controlled by a hold-to-run control. The lowering velocity shall be ≤ 0,1 m/s when the lowering motion is controlled automatically or without a hold-to-run control. In this case, the last 0,5 m until the trolley or container touches the floor shall be controlled by a hold-to-run control. 5.3 Electrical hazards 5.3.1 General The electrical equipment shall comply with EN 60204-1. For additional requirements of the electrical equipment see 5.3.2 to 5.3.6. 5.3.2 Stopping function of switching devices Switching devices for stopping the machine (actuators) shall be in accordance with 9.2.2, category 0 or 1 of !EN 60204-1:2006". 5.3.3 Emergency stop-device Machines must be fitted with an emergency stop device, as far as the risk assessment carried out by the manufacturer does not allow concluding that such a device would not lessen the risk, because it would not reduce the stopping time. SIST EN 13570:2005+A1:2010
KEY 1 OFF 2 ON 3 PROTECTION HOOD (OFF) Figure 8 — ON/OFF switch with hood 5.3.5 ON and OFF-switch On mixing machines, ON and OFF-switches shall be provided. The switches shall be arranged on the operator side of machines. The ON-switch shall be protected against unintentional switch-on (e.g. protective collar). 5.3.6 Safety requirements related to electromagnetic phenomena Mixing machines shall have sufficient immunity to electromagnetic disturbances to enable them to operate safely as intended and not fail to danger when exposed to the levels and types of disturbances intended by the manufacturer. The manufacturer of the machines shall design, install and wire the equipment and sub-assemblies taking into account the recommendations of the suppliers of these sub assemblies. 5.4 Hydraulic hazards The hydraulic equipment shall comply with EN 982. The hydraulic elements shall be housed inside the machine, if technically feasible. The bursting pressure of the hoses shall be four times the pressure under normal operating conditions. 5.5 Hazard from loss of stability Mixing machines (fixed to floor) shall be designed to be stable under normal operating conditions. For mixing machines not fixed to floor, sufficient inherent tilt stability shall be ensured. SIST EN 13570:2005+A1:2010
5.8 Ergonomic requirements The ergonomic principles and requirements described in Clause 4.8 of EN 12100-2:2003 as well as in EN 614-1 and in EN 1005- 1-3, shall be taken into account. All information required for achieving the ergonomic objectives to be followed by the user shall be described in the instruction handbook. On mixing machines with a hand-operated cover over the mixing container, the grab handle shall be designed and located such that an operating force < 250 N is required. On mixing machines with an ejector or extractor, these shall be designed such that an operating force < 250 N is required. On mixing machines with screws weighing > 25 kg, lifting devices and transport carriages at the same height shall be provided which make it possible to install, remove and transport these parts without manual lifting (see figure 9). SIST EN 13570:2005+A1:2010
KEY 1 transport screw 2 transport carriage 3 castors with locking devices Figure 9 — Transport carriage for screw conveyor On mixing machines with a height > 1400 mm (measured from the floor to the upper edge of the mixing container), steps or working platforms shall be provided for operating, setting-up and cleaning procedures which cannot be done from the floor. The distance from the standing area of steps or working platforms to the container edge shall be < 1200 mm. See also Clause 5.2.3.3.3. On mixing machines a loading device shall be provided if the distance from the standing area to the container edge is > 1400 mm. 5.9 Hazard from dust Measures to prevent emission of dust-like materials shall be taken. These measures may include
tight-fitting access pipe,
suction means at the outlet or
tight-fitting cover. 5.10 Hygiene and cleaning 5.10.1 General The design of the machines shall be in accordance with EN 1672-2 and with the requirements laid down below as well as in accordance with Annex B. Hygiene areas see figures 10 and 11. SIST EN 13570:2005+A1:2010
KEY 1 food area 2 splash area 3 non-food area Figure 10 — Hygiene areas on mixing machines with front face discharge outlet SIST EN 13570:2005+A1:2010
KEY 1 food area 2 splash area 3 non-food area Figure 11 — Hygiene areas on mixing machines with bottom discharge opening 5.10.2 Food area The following components are defined according to EN 1672-2 and regarded as the food area: mixing container, rim and inside; mixing shafts; closed cover, inside; grid-type cover or cover from perforated sheet, inside and outside; electrosensitive protective device; protective grid; feeding screws; SIST EN 13570:2005+A1:2010
EN 13570
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