1、BSI Standards PublicationBS EN 12268:2014Food processing machinery Band saw machines Safetyand hygiene requirementsBS EN 12268:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 12268:2014. Itsupersedes BS EN 12268:2003+A1:2010 which is withdrawn.The UK partic
2、ipation in its preparation was entrusted to TechnicalCommittee MCE/3/5, Food industry machines.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsibl
3、e for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 78340 1ICS 67.260Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy a
4、nd Strategy Committee on 30 November 2014.Amendments issued since publicationDate Text affectedBS EN 12268:2014EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12268 November 2014 ICS 67.260 Supersedes EN 12268:2003+A1:2010English Version Food processing machinery - Band saw machines - Safety an
5、d hygiene requirements Machines pour les produits alimentaires - Scies ruban - Prescriptions relatives la scurit et lhygine Nahrungsmittelmaschinen - Bandsgemaschinen - Sicherheits- und Hygieneanforderungen This European Standard was approved by CEN on 13 September 2014. CEN members are bound to com
6、ply 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-CENELE
7、C 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 s
8、ame status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembour
9、g, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2
10、014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12268:2014 EBS EN 12268:2014EN 12268:2014 (E) 2 Contents Page Foreword 4 Introduction .5 1 Scope 6 1.1 General 6 1.2 Description of various machine types .6 1.2.1 General 6 1.2.2
11、Type A .7 1.2.3 Type B .7 1.2.4 Type C .7 1.2.5 Type D .8 2 Normative references 9 3 Terms and definitions .9 4 List of hazards . 11 5 Safety requirements and/or measures . 12 5.1 General . 12 5.2 Mechanical hazards 13 5.2.1 General . 13 5.2.2 Saw blade protection outside of the cutting zone Zone 1
12、. 13 5.2.3 Protection at the cutting zone Zone 2 13 5.2.4 Bottom and top wheels Zone 3 and Zone 4 17 5.2.5 Sliding feed table Zone 5 17 5.2.6 Drive system Zone 6 17 5.3 Electrical hazards . 17 5.3.1 General . 17 5.3.2 Stopping function of switching devices . 17 5.3.3 Protection against water ingress
13、 17 5.3.4 ON- and OFF-switch . 19 5.3.5 Safety requirements related to electromagnetic phenomena 19 5.3.6 Wheel-mounted band saw machines 19 5.4 Hazard from loss of stability 19 5.5 Noise hazard Noise reduction at the design stage 19 5.6 Ergonomic requirements . 20 5.7 Hygiene and cleaning . 20 5.7.
14、1 General . 20 5.7.2 Food area . 20 5.7.3 Splash area 21 5.7.4 Non-food area 21 5.7.5 Surface conditions 21 5.7.6 Cleaning . 21 6 Verification of safety requirements and/or measures . 21 7 Information for use . 23 7.1 General . 23 7.2 Instruction handbook . 23 7.3 Marking 25 Annex A (normative) Nois
15、e test code for band saw machines (grade 2) . 26 BS EN 12268:2014EN 12268:2014 (E) 3 A.1 Emission sound pressure level determination 26 A.2 Sound power level determination 26 A.3 Installation and mounting conditions . 26 A.4 Operating conditions 26 A.5 Measurement . 26 A.6 Information to be recorded
16、 . 27 A.7 Information to be reported 27 A.8 Declaration and verification of the noise emission values . 27 Annex B (normative) Design principles to ensure cleanability of band saw machines 28 B.1 Definitions 28 B.2 Materials of construction 29 B.3 Design . 29 Annex C (informative) Examples of work a
17、id tools having a protective function 34 C.1 General . 34 C.2 Example of a pusher to saw small parts (chicken legs, wings) 34 C.3 Example of a device for cutting pork knuckles, shoulders and chest bones . 35 C.4 Example of a device for cutting of feet, long products 36 C.5 Example of a device for cu
18、tting frozen plates 37 C.6 Example of a pusher that is not an integral part of the machine and that slides in the table groove . 38 C.7 Example of a device for slicing parts 39 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/E
19、C 40 Bibliography 41 BS EN 12268:2014EN 12268:2014 (E) 4 Foreword This document (EN 12268:2014) has been prepared by Technical Committee CEN/TC 153 “Machinery intended for use with foodstuffs and feed”, the secretariat of which is held by DIN. This European Standard shall be given the status of a na
20、tional standard, either by publication of an identical text or by endorsement, at the latest by May 2015 and conflicting national standards shall be withdrawn at the latest by May 2015. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent righ
21、ts. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12268:2003+A1:2010. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential
22、requirements of EU Directive 2006/42/EC. For relationship with EU Directive 2006/42/EC, see informative Annex ZA, which is an integral part of this document. Significant changes: The significant changes with respect to the previous edition EN 12268:2003+A1:2010 are listed below: Clause 1: clarificat
23、ion of the scope; new clause to describe the machine types; displacement of requirements in the appropriate clauses; Clause 2: normative references updated; Clause 3: terms partly revised (e.g. fixed feed table); consistent use throughout the standard; Clause 4: new presentation in a table; Clause 5
24、: new 5.2 according to the danger zones; more specific requirements to product pusher, protective rail and blade guide; Clause 6: verification list updated; Clause 7: completion of 7.2 with all information referred to in Clause 5, now including operator training; 7.3 now contains the marking; annexe
25、s: old Annex C “Common hazard” deleted and shifted into appropriate clauses; figures partly renewed. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
26、Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the Un
27、ited Kingdom. BS EN 12268:2014EN 12268:2014 (E) 5 Introduction This document is a type C standard as stated in EN ISO 12100. The machinery concerned and the extent to which hazards, hazardous situations and hazardous events are covered are indicated in the scope of this document. When provisions of
28、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 over the provisions of the other standards, for machines that have been designed and built according to the provisions of this type C standard. BS EN 12268:
29、2014EN 12268:2014 (E) 6 1 Scope 1.1 General This European Standard specifies requirements for the design and manufacturing of band saw machines as described in 1.2 (see Figures 1 to 5). The machines covered by this European Standard are used to cut: bones; fresh or deep frozen meat with or without b
30、ones; fresh or deep frozen fish, natural or in fillets; deep frozen block food products; fresh or deep frozen vegetables; other products such as pork fat or similar products. The band saw machines covered by this European Standard do not include band saw machines for processing wood and similar mate
31、rials which are covered by the EN 1807 series. Band saw machines for domestic use are not included in this European Standard. This European Standard is not applicable to band saw machines which were manufactured before its date of publication as EN. This European Standard deals with all significant
32、hazards, hazardous situations and events relevant to band saw 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 deals with the hazards which can arise during all the lifetime of the mach
33、ine, including the phases of transport, assembly, commissioning, operation, cleaning, use, maintenance, decommissioning, dismantling, disabling and scrapping of the machine. This European Standard covers the following types of machines: band saw machines designed as table-top machines with and witho
34、ut base; band saw machines designed as floor-type machines with and without castors. 1.2 Description of various machine types 1.2.1 General Band saw machines consist of a machine casing, a fixed feed table or a sliding feed table, a roller conveyor or conveyor belt, a product pusher, a height-adjust
35、able protective rail, a top and a bottom wheel, a saw blade, an upper and lower blade guide, a blade tensioning device, a drive and electrical components, depending on machine type. This standard does not deal with machinery with automatic loading/unloading systems (e.g. automatic conveyors). BS EN
36、12268:2014EN 12268:2014 (E) 7 On floor-type band saw machines, the product to be cut is placed by hand onto the fixed feed table or sliding feed table and pushed against the cutting zone of the saw blade by means of the product pusher or the rear table wall on the sliding feed table or by means of t
37、he roller conveyor or conveyor belt and sawed. 1.2.2 Type A Band saw machine with a fixed feed table and a non-detachable, movable product pusher: Maximum cutting height SH 250 mm. Key Key 1 ON-/OFF-switch 1 ON-/OFF-switch 2 product pusher 2 product pusher 3 portioning plate 3 portioning plate 4 tab
38、le 4 base Figure 1 Band saw machine type A with product pusher Location: table top Figure 2 Band saw machine type A with product pusher Location: base 1.2.3 Type B Band saw machine with a fixed feed table, a protective rail and a maximum cutting height 60 mm shall be provided. The portioning plate m
39、ay be designed to be tiltable and removable. It shall be possible to change the saw blade without removing the product pusher. BS EN 12268:2014EN 12268:2014 (E) 14 In case of having a combination of rail and pusher the requirements of type B shall be considered. Dimensions in millimetres Key 1 saw b
40、lade A1distance between the product pusher in its protective position and the non-detachable feed table Figure 7 Schematic design of a product pusher 5.2.3.2 Type B Access to that portion of the cutting zone of the saw blade which is not used for cutting shall be prevented. This can be achieved e.g.
41、 by the following measures: A non-detachable blade guide and a height adjustable protective rail shall be provided (see Figures 3, 4 and 8). A maximum distance of 6 mm shall be installed, either between product pusher and table or between blade guide and table. It shall be self-blocking or capable o
42、f being blocked in position. When unblocking the height adjustable protective rail, an abrupt lowering to 60 mm, and the finger protection bar shall be 100 mm high and 50 mm wide. Tapering towards the top to 25 mm is admissible. The finger protection bar shall overlap the saw blade in the position o
43、f maximum forward travel of the sliding feed table by 10 mm (see Figure 9 and Figure 10). The blade shall be protected on 2 faces and in any case, it shall be possible to adjust the protective rail to a distance 6 mm from the table. BS EN 12268:2014EN 12268:2014 (E) 16 Dimensions in millimetres Key
44、Key 1 saw blade 1 saw blade 2 table rear wall 2 table rear wall 3 finger protection bar (in maximum forward position) 3 finger protection bar (in maximum forward position) Figure 9 Band saw machine type C with protective rail and sliding feed table Figure 10 Schematic design of a finger protection b
45、ar When the sliding feed table is locked or tilted down, it shall be possible to establish a continuous table surface or this shall be present. In the case of a locked sliding feed table, it shall be possible to tilt down the table rear wall with the finger protection bar. If the finger protection b
46、ar is tilted down, the sliding feed table shall be prevented from being moved. A horizontal adjustable portioning plate of a height 60 mm shall be provided. The portioning plate may be tiltable and detachable. A last slice device of a height 150 mm shall be provided. The last slice device may be pro
47、vided with spikes on the side facing the saw blade. The last slice device may be removable. A removable product pusher may be provided. 5.2.3.4 Type D For requirements relating to the protective rail, see 5.2.3.2. A product pusher and a portioning plate are not required. BS EN 12268:2014EN 12268:201
48、4 (E) 17 5.2.4 Bottom and top wheels Zone 3 and Zone 4 Access to spokes and the in-running nips on the bottom and top wheels shall be prevented. This can be achieved e.g. by the following measures: A closed machine casing shall be provided, see 5.2.2. 5.2.5 Sliding feed table Zone 5 The sliding feed
49、 table at type C machines shall be designed so as to prevent any jumping out or sliding out from the slide and guide rails. A product pusher can be fitted on the machine to help on specific cuts. The product pusher shall not interfere with the use of the protective rail. 5.2.6 Drive system Zone 6 Access to the danger points on the drive system shall be prevented. This can be achieved e.g. by the following measures: A fixed guard or moveable interlocked guard shall be provided on the drive mech
