Bsi bs en 13236 2010 + a1 2015

BS EN 13236:2010+A1:2015 BS EN 13236:2010 BSI Standards Publication Safety requirements for superabrasive products BS EN 13236:2010+A1:2015 BRITISH STANDARD National foreword This British Standard is the UK implementation of EN 13236:2010+A1:2015 It supersedes BS EN 13236:2010 which is withdrawn The start and finish of text introduced or altered by amendment is indicated in the text by tags Tags indicating changes to CEN text carry the number of the CEN amendment For example, text altered by CEN amendment A1 is indicated by  The UK participation in its preparation was entrusted to Technical Committee MTE/13, Grinding wheels, abrasive tools, paper and cloths, and powders A list of organizations represented on this committee can be obtained on request to its secretary This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application © The British Standards Institution 2016 Published by BSI Standards Limited 2016 ISBN 978 580 90463 ICS 25.100.70 Compliance with a British Standard cannot confer immunity from legal obligations This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 December 2010 Amendments/corrigenda issued since publication Date Text affected 31 January 2016 Implementation of CEN amendment A1:2015 EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM ICS 25.100.70 EN 13236:2010+A1 December 2015 Supersedes EN 13236:2010 English Version Safety requirements for superabrasive products Prescriptions de sécurité pour les produits superabrasifs Sicherheitsanforderungen für Schleifwerkzeuge mit Diamant oder Bornitrid This European Standard was approved by CEN on 16 October 2010 and includes Amendment approved by CEN on 17 November 2015 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, 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 United Kingdom EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels © 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members Ref No EN 13236:2010+A1:2015 E BS EN 13236:2010+A1:2015 EN 13236:2010+A1:2015 13236:2010+A1:2015 (E) (E) EN Contents Page European foreword Introduction Scope Normative references 3.1 3.2 3.3 3.4 3.5 3.6 Terms, definitions and symbols General Grinding machines Grinding method Type of application Symbols 11 Other symbols 11 List of significant hazards 12 5.1 5.2 5.2.1 5.2.2 5.2.3 5.2.4 5.2.5 5.3 5.3.1 5.3.2 5.3.3 5.3.4 5.3.5 5.3.6 5.3.7 5.3.8 5.4 5.4.1 5.4.2 5.4.3 5.5 5.5.1 5.5.2 5.5.3 5.6 5.6.1 5.6.2 5.6.3 5.6.4 5.6.5 5.7 Safety requirements 12 General requirements 12 Requirements for precision superabrasive grinding and cutting-off wheels 13 Bore tolerances 13 Sequence of maximum operating speeds 13 Safety factors 13 Maximum operating speeds 13 Blotters 14 Requirements for non-precision cutting-off wheels 14 Bore tolerances 14 Sequence of maximum operating speeds 14 Safety factors 15 Maximum operating speeds 15 Requirements for the metal blank 16 Requirements for the connection of the superabrasive section to the metal blank 19 Tensioning of non-precision cutting-off wheels 21 Limitation of sides abrasives and/or superabrasives coating 21 Requirements for diamond wires 21 General 21 Requirements 21 Maximum operating speeds 22 Requirements for mounted points 22 Spindle diameter tolerances 22 Sequence of maximum operating speeds 22 Safety factors 22 Requirements for other superabrasive products for non-precision grinding 22 Bore diameter tolerances 22 Sequence of maximum operating speeds 22 Safety factors 22 Maximum operating speeds 23 Requirements for the connection of the abrasive section to the core 23 Marking 24 BS EN 13236:2010+A1:2015 EN (E) EN 13236:2010+A1:2015 13236:2010+A1:2015 (E) 6.1 6.1.1 6.1.2 6.2 6.2.1 6.2.2 6.2.3 6.2.4 6.3 6.4 6.5 Verification of the safety requirements 24 Verification of the general requirements 24 Visual inspection 24 Ring test 24 Verification of the strength requirements 24 Verification of the safety factor 24 Verification of the bending moment of non-precision cutting-off wheels 24 Verification of the strength requirements for other superabrasive products for nonprecision grinding 27 Verification methods for diamond wires 28 Verification of marking 30 Verification of the requirements for blotters 30 Verification of tensioning of non-precision cutting-off wheels 30 Information for use 31 Annex A (normative) Marking 32 A.1 Content of the marking 32 A.1.1 Marking requirements 32 A.1.2 Additional inscriptions 34 A.1.3 Multiple or gang mounted wheels 34 A.2 Execution of the marking 35 Annex B (normative) Colour codes 36 Annex C (informative) Mounted points 37 C.1 Example of calculation of the maximum permissible speed of rotation 37 C.2 Example for the application of the calculation method 40 C.2.1 Types of mounted points 40 C.2.2 Assumptions for the calculation 41 C.2.3 Maximum permissible speeds of rotation 42 Annex D (normative) Reconditioning of cutting-off wheels according to 5.3.6.4 44 D.1 Preconditions for reconditioning 44 D.2 Additional marking requirements 44 Annex E (informative) Speed conversion table 46 Bibliography 49 Figures Figure — Position of cuts and openings in steel blanks 18 Figure — Example of cut-outs and openings 19 Figure — Segmented cutting-off wheels: Dimensions of segment height X1 25 Figure — Example of a bending test device for segmented cutting-off wheels 25 Figure — Cutting-off wheels with continuous rim: Dimensions of segment height X1 26 Figure — Example of a bending test device for cutting-off wheels with continuous rim 27 Figure — Example of a shearing force test device 28 Tables Table — Grinding method, type of machine, type of application 10 BS EN 13236:2010+A1:2015 EN 13236:2010+A1:2015 13236:2010+A1:2015 (E) (E) EN Table — Symbols 11 Table — Other symbols 12 Table — List of significant hazards 12 Table — Safety factors for precision superabrasive grinding and cutting-off wheels 13 Table — Maximum operating speeds as a function of the bond type 14 Table — Safety factors for non-precision cutting-off wheels 15 Table — Maximum operating speeds as a function of the bond type 15 Table — Dimensions of blanks for dry cutting-off 16 Table 10 — Dimensions of blanks for wet cutting-off 17 Table 11 — Bending strength σb for cutting-off wheels for the use on hand-held cutting-off machines depending on segment height X1 and segment length L2 20 Table 12 — Minimum bending moment Mb 20 Table 13 — Safety factors for other superabrasive products for non-precision grinding 23 Table 14 — Maximum operating speeds as a function of the bond type 23 Table A.1 — Marking of superabrasive products 32 Table A.2 — Restrictions of use (RE) 34 Table B.1 — Colour codes and design of colour codes 36 Table C.1 — Designation of the calculation quantities 39 Table C.2 — Designation of mounted points 40 Table C.3 — Characteristics for the calculation of maximum speeds of rotation 41 Table C.4 — Mounted points, cylindrical shape, plain spindles (ZYN) vitrified bond (V) 42 Table C.5 — Mounted points, cylindrical shape, reduced spindles (ZYA), vitrified bond (V) 42 Table C.6 — Mounted points, cylindrical shape, plain spindle Schaft (ZYN), electroplated bond (G) 43 Table E.1 — Speed conversion 46 BS EN 13236:2010+A1:2015 EN (E) EN 13236:2010+A1:2015 13236:2010+A1:2015 (E) European foreword This document (EN 13236:2010+A1:2015) has been prepared by Technical Committee CEN/TC 143 “Machine tools - Safety”, the secretariat of which is held by SNV This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2016 and conflicting national standards shall be withdrawn at the latest by June 2016 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights The provisions of this European Standard need not be mandatory to superabrasive products manufactured the first 12 months after publication of this European Standard This document includes Amendment approved by CEN on 17 November 2015 This document supersedes !EN 13236:2010" The start and finish of text introduced or altered by amendment is indicated in the text by tags !" !Significant changes between EN 13236:2001 and EN 13236:2010 were as follows:" a) the standard was technically and editorially revised and partly adapted to EN 12413:2007 about bonded abrasive products and EN 13743:2009 about coated abrasive products; b) the term "burst speed factor" was included in Table 2, Table 5, Table and Table 13; c) in the requirements it is now distinguished between precision and non-precision cutting-off wheels; d) new 5.3.5.3 defines restrictions in design and position of cuts and openings in the metal blank of cuttingoff wheels for hand-held applications; e) changed 5.3.6.2 on dimensional limitations and bending moment for segmented non-precision cuttingoff wheels for hand-held applications, with requirements now depending on segment height and segment length; f) requirements for reconditioned non-precision cutting-off wheels were included in new 5.3.6.4 and new normative Annex D; g) Clause was shortened to verification of safety requirements The scope of inspection and testing has been deleted because it is the responsibility of the manufacturer to put in place respective test procedures that give them the confidence that all safety requirements defined in this standard are respected; h) the requirements for colour code stripes were deleted in Annex A and are now presented in new Annex B; i) j) Table A.3 and Table A.4 about restrictions for use were combined to one table and thereby adapted to EN 12413 and EN 13743; Clause A.2 about execution of the marking was simplified; BS EN 13236:2010+A1:2015 EN 13236:2010+A1:2015 13236:2010+A1:2015 (E) (E) EN k) Annex B about blotters was deleted and part of its content was included in 5.2.5; l) Annex C about mounted points was completely revised and shortened; m) Annex D with the speed conversion table (now Annex E) was editorially revised and maximum operating speeds above 320 m/s were deleted; n) Annex E about shapes and dimensions of grinding wheels and cutting-off wheels had become obsolete with publication of ISO 6104 and was therefore deleted; o) Annex F about grain sizes and concentration for diamond and cubic boron nitride had become obsolete with publication of ISO 6106 and was therefore deleted 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, 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 United Kingdom BS EN 13236:2010+A1:2015 EN (E) EN 13236:2010+A1:2015 13236:2010+A1:2015 (E) Introduction This European Standard has been prepared to provide one means of conforming with essential safety requirements, e.g of the General Product Safety Directive and associated EFTA regulations This European Standard is addressed to designers, manufacturers and suppliers of the superabrasive products described in the scope as well as to those who are reconditioning superabrasive cutting-off wheels In addition, it helps designers, manufacturers and suppliers of grinding machines in the selection of superabrasive products, in order to reduce the risks and achieve conformity of the respective machinery with the Essential Safety Requirements of the Machinery Directive The extent to which hazards are covered is indicated in the scope of this European Standard BS EN 13236:2010+A1:2015 EN 13236:2010+A1:2015 13236:2010+A1:2015 (E) (E) EN Scope !This European Standard only applies to superabrasives products containing natural or synthetic diamond or cBN (cubic boron Nitride) It includes precision grinding and cutting-off wheels, non-precision cutting-off wheels, diamond wires, mounted points and other superabrasive products for non-precision grinding It also applies to reconditioned superabrasive cutting-off wheels." This European Standard specifies requirements and/or measures for the removal or reduction of hazards resulting from the design and application of the superabrasive products This European Standard contains also procedures and tests for verification of the compliance with the requirements as well as safety information for use which is to be made available to the user by the manufacturer The hazards taken into consideration are listed in Clause This European Standard does not apply to bonded abrasive products, coated abrasive products, rotating dressing tools, truers nor any non-rotating superabrasive products Normative references !The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application For dated references, only the edition cited applies For undated references, the latest edition of the referenced document (including any amendments) applies." EN ISO 286-2:2010, Geometrical product specifications (GPS) — ISO code system for tolerances on linear sizes — Part 2: Tables of standard tolerance classes and limit deviations for holes and shafts (ISO 286-2:2010) ISO 22917, Superabrasives — Limit deviations and run-out tolerances for grinding wheels with diamond or cubic boron nitride Terms, definitions and symbols For the purposes of this document the following terms and definitions apply 3.1 General 3.1.1 superabrasive product abrasive product containing natural or synthetic diamond or cubic boron nitride in a bond 3.2 Grinding machines 3.2.1 stationary grinding machine grinding machine being fixed in position during operation !Note to entry: "See for example EN 13218 3.2.2 mobile grinding machine grinding machine not being fixed in position during operation !Note to entry: "Mobile grinding machines are manually guided (but not supported) by hand during use, e.g floor grinding machines BS EN 13236:2010+A1:2015 EN 13236:2010+A1:2015 13236:2010+A1:2015 (E) (E) EN without exceeding the permissible bending It is determined by a separate calculation of the reduced part of the spindle and the nonreduced part of the spindle according to Equation (C.9) Fzul  ⋅ σ zul ⋅ I Sl  S ⋅ (L + T )  l =  2 ⋅ σ zul ⋅ I S   S d ⋅ L (C.9) σ zul corresponds to the yield point Re of the spindle material The protruding length L of the mounted point is calculated by: (C.10) L = L0 + T The reduced m* is calculated by the relations specified below The mounted point can be divided into partial volumes (Figure C.1) The reduced mass is then determined by a summation of the partial volumes combined by multiplication with the corresponding density of the material used for the shaft, the abrasive product and abrasive section: Figure C.1 — Volume division for mounted points with reduced spindle (ZYA) m * = (k m ⋅ ρ s ⋅ (V1 + V2 ) + ρ T ⋅ V3 + ρ Sk ⋅ V ) ⋅ 10 − Reduced mass for the non-reduced spindle and The following relations apply: V1 = π (C.11) m * = (k m ⋅ ρ s ⋅ (V1 + V2 + V5 ) + ρ T ⋅ V3 + ρ Sk ⋅ V ) ⋅ 10 − reduced mass for the reduced spindle ⋅ S d2 ⋅ L0 V1 = V2 = π 4 ⋅ S d2 ⋅ (L0 − L4 ) ⋅ S d2 ⋅ T V2 = 38 π π ⋅ S12 ⋅ T (C.12) (C.13) (C.14) (C.15) (C.16) BS EN 13236:2010+A1:2015 EN (E) EN 13236:2010+A1:2015 13236:2010+A1:2015 (E) V3 = π [ ] ⋅ (D − X )2 − S ⋅ T V3 = V4 = π [ π [ ] ⋅ (D − X )2 − S12 ⋅ T ] ⋅ D − (D − X )2 ⋅ T V5 = π ⋅ S12 ⋅ L4 (C.17) (C.18) (C.19) (C.20) With the quantity km a reduction factor is introduced, by means of which the mass of the spindle is only partially added to the mass of the abrasive product As a function of the structure of the abrasive product and the type of bond, the following conditions apply to the relations (C.11) and (C.12) for the calculation of the reduced masses: Bond G: Bond V: the depth of the abrasive section X, here single layer, is neglected in the calculation of the mass (X = 0, V4 = 0), the abrasive product is made of steel (ρT = ρS) the volume of the section (V4) and the volume of the support (V3) are made of ceramics (ρSk = ρT) Bond B, M: the volume of the support (V3) is made of steel (ρT = ρS) By means of the relations described above, the maximum permissible speed of rotation of a mounted point can be calculated for a given unsupported overhang length L0 with the relation (C.1), since all other quantities are specific material constants, are given by the geometric dimensions or were or may be empirically determined, as the mass eccentricity Table C.1 — Designation of the calculation quantities Ce — Is, Is1 mm4 Lk mm L m* V1 V2 V3 V4 V5 wab ρSk ρT mm g mm3 mm3 mm3 mm3 mm3 mm g/cm3 g/cm3 Factor Geometrical moment of inertia Protruding length of the mounted point (L = L0 +□T) Coefficient of length Reduced mass of the mounted point Spindle volume (non-reduced part) Spindle volume within the abrasive product Support volume Abrasive section volume Volume of reduced spindle Permissible bending of spindle Abrasive section density Support density 39 BS EN 13236:2010+A1:2015 EN 13236:2010+A1:2015 13236:2010+A1:2015 (E) (E) EN C.2 Example for the application of the calculation method C.2.1 Types of mounted points Table C.2 — Designation of mounted points Designation Figure Short sign Mounted point, cylindrical shape, plain spindle ZYN Mounted point, cylindrical shape, reduced spindle ZYA 40 BS EN 13236:2010+A1:2015 EN (E) EN 13236:2010+A1:2015 13236:2010+A1:2015 (E) C.2.2 Assumptions for the calculation Table C.3 — Characteristics for the calculation of maximum speeds of rotation Modulus of elasticity of the spindle E = 210 000 N/mm2 material Yield point of the spindle material Mass eccentricity Re = 600 N/mm2 e = 0,05 mm Reducing factor for the spindle mass km = 0,257 Specific density of the spindle material ρs = 7,85 g/cm3 Width factora Density of the electro-plated bondb Density of the vitrified bond Density of the vitrified core Density of the resin bond Density of the sintered metal bond a kT = 0,5 to 1,0 ρG = 7,85 g/cm3 ρV = 3,6 g/cm3 ρTV = 3,6 g/cm3 ρB = 4,5 g/cm3 ρM = 8,6 g/cm3 For mounted points with plain and reduced spindle and for all mounted points with electro-plated bond kT = 1,0 b For mounted points with electro-plated bond, the density of the bond corresponds to the density of the spindle material due to the small depth of section X 41 10 10 X Sd mm X 50 60 80 70 70 50 60 80 mm L2 mm L1 10 mm L3 42 10 15 10 3,0 10 15 20 25 30 35 40 95 493 95 493 95 493 95 493 95 493 86 712 70 932 59 087 95 493 70 277 51 210 39 166 31 051 25 305 21 074 17 861 S1 L1 L2 L4 L3 4,0 100 80 60 85 65 45 90 70 100 80 50 60 15 15 50 60 70 — — 20 25 30 35 40 45 50 55 — — 65 — — 70 — — — — 27 425 25 406 — — 38 175 34 807 31 776 — — 60 — — — — — — 53 57 248 49 654 46 259 290 43 059 40 035 37 177 34 486 31 963 29 609 — — — — 80 88 201 72 950 66 579 60 764 049 55 421 50 509 46 007 41 901 15 — 42 818 32 446 — — — Maximum permissible speeds of rotation nmax in 1/min for overhang length L0 in mm 10 — 13 364 10 421 — Maximum permissible speeds of rotation nmax in 1/min for overhang length L0 in mm Table C.5 — Mounted points, cylindrical shape, reduced spindles (ZYA), vitrified bond (V) mm Sd mm mm mm mm mm mm mm mm mm T mm mm D T D Table C.4 — Mounted points, cylindrical shape, plain spindles (ZYN) vitrified bond (V) C.2.3 Maximum permissible speeds of rotation BS EN 13236:2010+A1:2015 EN 13236:2010+A1:2015 13236:2010+A1:2015 (E) (E) EN 8 10 10 mm mm mm Sd T D 100 80 60 90 70 50 72 52 60 80 mm L2 mm L1 15 10 mm L3 10 15 20 25 30 35 40 95 493 95 493 95 493 95 493 95 493 95 493 95 493 60 — — 70 — — — — 43 45 284 35 369 — — 40 469 30 747 — 50 83 182 60 004 — 95 493 95 493 95 493 95 493 95 493 81 696 66 845 55 723 Maximum permissible speeds of rotation nmax in 1/min for overhang length L0 in mm Table C.6 — Mounted points, cylindrical shape, plain spindle Schaft (ZYN), electroplated bond (G) BS EN 13236:2010+A1:2015 EN 13236:2010+A1:2015 13236:2010+A1:2015 (E) (E) EN BS EN 13236:2010+A1:2015 EN 13236:2010+A1:2015 13236:2010+A1:2015 (E) (E) EN Annex D (normative) Reconditioning of cutting-off wheels according to 5.3.6.4 D.1 Preconditions for reconditioning Diamond cutting-off wheels for use on hand-held grinding machines and for cutting of asphalt and fresh concrete shall not be reconditioned Furthermore, reconditioning is not permitted, if visible, radial fissures in the blank cannot be drilled due to their position and character Prior to a reconditioning it shall especially be tested, if: 1) The blank shows visible defects, such as blue coloration, scouring points, grooves, deformations and drilled fissures; 2) there are any loose layer joints in a sandwich-type blank; 3) the gullet depths of the blank are in the permitted range and the lands are straight; 4) blank thickness, hole diameter, axial and radial run-out are in the permitted range; 5) truing or tightening of the blank are still possible Blanks for diamond cutting-off wheels may be reconditioned, if: a) the reduction of the blank thickness E is less than 20 % of the original blank thickness in the brazing zone or less than 10 % of the original blank thickness in the base of slot The original blank thickness is measured in the bore area; b) blanks of diamond cutting-off wheels for horizontal cutting of stone on stationary cutting-off machines neither show fissures nor drilled fissures; c) the blank does not show any visible fissures originating in the base of slot; d) the blank does not show any tangential fissures; e) the blank does not show any blue coloration; f) the blank is cleaned; g) residual segments were removed; h) the blank was ground at the periphery and laterally in the area of the brazing zone D.2 Additional marking requirements Reconditioned diamond cutting-off wheels shall be additionally marked as follows: 44 BS EN 13236:2010+A1:2015 EN (E) EN 13236:2010+A1:2015 13236:2010+A1:2015 (E) A specific mark indicating the date (month and year) of the reconditioning process together with the name of the reconditioning company or their registered trademark shall be durably and legibly inscribed on the overlapping area of the flange, for cutting-off wheels flanged on one side on the flanged side 45 BS EN 13236:2010+A1:2015 EN 13236:2010+A1:2015 13236:2010+A1:2015 (E) (E) EN Annex E (informative) Speed conversion table The values given in Table E.1 are not the exact calculated values but recommended values to be used for marking the abrasive products Table E.1 — Speed conversion Outside diameter D of the abrasive product mm 10 13 16 20 25 32 40 50 63 80 100 115 125 150 180 200 230 250 300 350/ 356 400/ 406 450/ 457 500/ 508 600/ 610 750/ 762 46 Maximum operating speed vs 10 12 16 20 m/s 25 32 Speed of rotation n 1/min 35 40 45 50 63 16 000 19 100 25 500 31 900 38 200 51 000 64 000 80 000 102 000 112 000 128 000 143 240 160 000 201 000 80 — 12 000 14 400 19 100 24 000 29 000 38 200 48 000 60 000 76 500 84 000 95 500 107 430 120 000 150 500 191 000 400 850 11 800 14 700 17 700 23 550 29 500 35 600 47 100 51 500 58 800 800 750 600 11 500 15 300 19 100 23 000 30 600 38 200 48 000 000 850 000 400 950 550 200 960 830 770 640 530 480 420 380 320 280 240 210 190 160 130 200 550 11 950 14 350 19 100 23 900 29 850 600 150 600 900 300 850 450 150 000 920 770 640 580 500 460 380 330 290 255 230 190 155 650 550 11 500 15 300 19 100 23 900 800 000 850 100 450 950 550 350 250 050 850 765 665 615 510 440 385 340 310 255 205 650 200 12 300 15 300 19 100 800 750 850 050 400 950 700 550 300 100 955 830 765 640 550 480 425 385 320 255 200 550 11 950 14 950 600 150 650 900 300 000 850 550 300 150 000 920 765 655 575 510 460 385 310 650 550 11 950 850 100 600 850 100 700 450 050 700 550 350 250 050 875 765 680 615 510 410 650 800 850 350 100 550 150 950 700 550 300 100 960 850 765 640 510 550 000 800 200 850 200 700 400 100 950 600 400 200 100 960 800 640 61 200 38 200 30 600 24 500 19 100 15 300 12 250 750 650 150 350 900 100 400 100 700 450 050 750 550 400 250 050 820 67 000 41 800 33 500 26 800 20 900 16 750 13 400 10 650 400 700 850 350 500 750 350 950 700 250 950 700 500 350 150 895 76 500 86 000 95 500 120 500 153 000 47 800 54 000 59 700 38 200 30 600 23 900 19 100 15 300 12 150 550 650 650 150 100 250 850 350 100 550 200 950 700 550 300 050 66 500 43 000 34 400 26 900 21 500 17 200 13 650 10 750 600 500 900 750 800 300 750 450 870 450 150 950 750 450 150 73 500 92 600 118 000 47 800 60 200 38 200 30 000 23 900 19 100 15 200 12 000 550 350 650 400 350 800 200 850 200 750 400 150 950 600 300 75 200 95 500 48 200 61 200 37 600 30 100 24 100 19 100 15 100 12 100 10 500 650 050 700 050 250 850 050 450 050 700 450 050 650 76 500 48 000 38 200 30 600 24 300 19 100 15 300 13 300 12 250 10 200 500 650 650 150 100 400 850 400 100 550 050 BS EN 13236:2010+A1:2015 EN (E) EN 13236:2010+A1:2015 13236:2010+A1:2015 (E) Table E.1 (continued) Outside diameter Maximum operating speed vs D of the abrasive product m/s 10 12 16 20 mm 800/ 813 900/ 914 000/ 015 060/ 067 120 220 500 800 120 145 195 240 290 385 480 110 130 170 215 255 340 100 115 155 195 230 95 110 150 185 85 95 130 160 90 65 55 105 75 65 140 105 85 175 130 110 25 32 Speed of rotation n 1/min 35 40 45 50 63 80 600 765 840 960 075 200 550 950 425 535 680 750 850 955 100 350 700 310 385 480 615 670 765 860 960 250 550 220 295 365 455 585 640 730 820 910 150 500 195 255 320 400 510 560 640 720 800 050 300 210 155 130 280 205 170 350 255 220 435 320 265 560 410 340 610 450 375 695 510 425 780 757 475 870 640 535 100 805 670 400 050 850 47 BS EN 13236:2010+A1:2015 EN 13236:2010+A1:2015 13236:2010+A1:2015 (E) (E) EN Table E.1 (continued) Outside diameter D of the abrasive product mm 100 125 140 Maximum operating speed vs m/s 160 180 225 13 16 20 25 32 40 50 63 80 100 115 125 150 180 200 230 250 300 350/ 356 400/ 406 450/ 457 500/ 508 600/ 610 750/ 762 800/ 813 900/ 914 000/ 015 060/ 067 120 220 500 800 48 280 320 150 000 168 000 191 000 95 500 107 000 123 000 Speed of rotation n 1/min 10 250 191 000 147 000 184 000 206 000 95 500 120 000 134 000 120 000 76 500 60 000 47 800 38 200 30 350 23 900 19 100 16 650 15 300 12 750 10 650 550 350 650 400 500 800 250 850 200 550 400 150 950 850 750 600 300 100 150 000 95 500 75 000 59 700 47 750 37 900 29 850 23 900 20 800 19 100 16 000 168 000 191 000 107 000 123 000 84 000 67 000 53 500 42 500 33 500 26 800 23 250 21 400 17850 13 300 14 900 10 400 11 650 11 950 550 000 850 000 350 800 000 200 000 700 13 400 10 700 950 650 700 950 350 500 600 350 00 400 700 200 450 300 000 600 350 550 250 800 500 153 000 172 000 95 500 107 500 76 500 61 200 48 500 38 200 30 600 26 600 24 500 20 400 17 000 15 300 13 300 12 250 10 200 750 650 800 150 100 100 850 400 100 950 800 550 050 700 138 000 172 000 191 000 86 000 107 500 120 000 68 800 54 600 43 000 34 400 30 000 27 500 23 000 19 100 17 200 14 950 13 800 11 500 850 600 650 900 750 600 300 850 450 300 150 900 300 950 135 000 86 000 68 250 53 750 43 000 37 400 34 400 28 650 23 900 21 500 18 700 17 200 14 350 12 300 10 750 550 600 200 750 400 800 300 100 960 600 900 400 75 800 59 700 47 750 41 550 38 200 31 850 26 550 23 900 20 800 19 100 15 950 13 650 11 950 10 650 550 000 400 000 350 800 550 350 000 200 650 134 000 84 900 66 900 53 500 46 500 42 800 36 700 29 700 26 750 23 250 21 400 17 850 15 300 13 400 11 900 10 700 950 150 700 950 350 100 900 500 600 000 153 000 97 000 76 500 61 200 53 200 48 900 40 800 34 000 30 600 26 600 24 500 20 400 17 500 15 300 13 600 12 250 10 200 150 650 800 150 850 600 100 100 400 BS EN 13236:2010+A1:2015 EN (E) EN 13236:2010+A1:2015 13236:2010+A1:2015 (E) Bibliography [1] [2] EN 792-7, Hand-held non-electric power tools — Safety requirements — Part 7: Grinders EN 792-9, Hand-held non-electric power tools — Safety requirements — Part 9: Die grinders [3] EN 12413, Safety requirements for bonded abrasive products [5] EN 13743, Safety requirements for coated abrasive products [4] [6] [7] [8] [9] EN 13218, Machine tools — Safety — Stationary grinding machines EN 22768-1, General tolerances — Part 1: Tolerances for linear and angular dimensions without individual tolerance indications (ISO 2768-1:1989) EN 60745-2-3, Hand-held motor-operated electric tools — Safety — Part 2-3: Particular requirements for grinders, polishers and disk-type sanders (IEC 60745-2-3:2006, modified) EN ISO 286-1, Geometrical product specifications (GPS) — ISO code system for tolerances on linear sizes - Part 1: Basis of tolerances, deviations and fits (ISO 286-1:2010) EN ISO 19432, Building construction machinery and equipment — Portable, hand-held, internal combustion engine driven cut-off machines — Safety requirements and testing (ISO 19432:2006) [10] ISO 666, Machine tools — Mounting of grinding wheels by means of hub flanges [12] ISO 6104, Superabrasive products — Rotating grinding tools with diamond or cubic boron nitride — General survey, designation and multilingual nomenclature [11] ISO 3864-2, Graphical symbols — Safety colours and safety signs — Part 2: Design principles for product safety labels [13] ISO 6106, Abrasive products — Checking the grit size of superabrasives [15] 98/37/EC, Directive 98/37/EC of the European Parliament and of the Council of 22 June 1998 on the approximation of the laws of the Member States relating to machinery [14] [16] [17] 95/16/EC, European Parliament and Council Directive 95/16/EC of 29 June 1995 on the approximation of the laws of the Member States relating to lifts 01/95/EC, Directive 2001/95/EC of the European Parliament and of the Council of December 2001 on general product safety 06/42/EC, Directive 2006/42/EC of the European Parliament and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC 49 This page deliberately left blank This page deliberately left blank NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards Institution (BSI) BSI is the national body responsible for preparing British 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