ISO INTERNATIONAL STANDARD 23125 Second edition 2015-01-15 Machine tools Safety - Turning machines Machines-outils - Sécurité - Machines de tournage Reference number ISO 23125:2015(E) ISO International Organization for Standardization -Zhejiang Institute of Standardization 5956617 IS02015 Not for Resale, 2015/5/13 07:08:48 itted without license from IHS IS0 23125:2015(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2015 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56 : CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland Prganizationfor Standardization networking permtted without license from IHS IS0 23125:2015(E) Contents Page Foreword .. Introduction. ...vi 1 Scope. 2 Normative references 3 Terms and definitions 3.1 General terms.. ..4 3.2 Terms related to parts of turning machines 3.3 Terms related to modes of operation Mandatory and optional modes of operation for turning machines 3.4 Terms related to sizes and groups of turning machines defined ..8 3.5 Terms related to maximum permissible spindle speeds and axes feeds ..13 4 List of significant hazards. ..14 4.1 General. .14 4.2 Main hazard zones. .14 4.3 Significant hazards and hazardous situations covered by this International Standard. ....15. 5 Safety requirements and/or protective measures. .19 5.1 General requirements .19 5.1.1 Overview. .19 5.1.2 Required characteristics for guards for all machine groups. .20 5.2 Specific requirements resulting from mechanical hazards identified in Clause 4 20 5.2.1 Group1machines 20 5.2.2 Groups 2, 3 and 4 machines 21 5.2.3 Workpiece clamping conditions .24 5.2.4 Modes of machine operation. 25 5.2.5 Optional or additional equipment for turning machines. .30 5.3 Specific requirements resulting from electrical hazards .32 5.4 Specific requirements resulting from noise hazards 33 5.5 Specific requirements resulting from radiation hazards .33 5.6 Specific requirements resulting from material or substance hazards .33 5.7 Specific requirements resulting from neglect of ergonomic principles hazards .34 5.8 Specific requirements resulting from unexpected start-up, over-run or over- speed hazards. .35 5.9 Specific requirements resulting from variation in rotational speed of tool hazards ..37 5.10 Specific requirements resulting from failure of the power supply hazards .38 5.11 Specific requirements resulting from failure of the control circuit hazards. ..38 5.12 Specific requirements resulting from errors of fitting hazards ..40 5.13 Specific requirements resulting from ejected fluids or objects hazards. .40 5.13.1 General requirements. ..40 5.13.2 Guards for large vertical Group 3 machines (NC turning machines and turningcentres) ..41 5.13.3 Guards for large horizontal Group 3 machines (NC turning machines and turningcentres) ..41 5.14 Specific requirements resulting from loss of stability hazards ..42 5.15 Specific requirements resulting from slips, trips and fall of persons hazards. ..42 5.16 Verification of the safety requirements and/or protective measures. ..42 6 Information for use. ..44 6.1 Marking. .45 iii ithout license from IHS Not for Resale, 2015/5/13 07:08:48