IS 17253 : Part 1 : 2024/ISO 16090-1 : 2022 Machine Tools Safety - Machining Centres, Milling Machines, Transfer Machines - Part 1 Safety Requirements

ICS 13.110; 25.080.01

PGD 35

NATIONAL FOREWORD

This Indian Standard (Part 1) (First Revision) which is identical to ISO 16090-1 : 2022 'Machine tools safety - Machining centres, milling machines, transfer machines - Part 1: Safety requirements', issued by the International Organization of Standards (ISO), was adopted by the Bureau of Indian Standards on the recommendation of the Machine Tools, Machine Tool Elements and Holding Devices Sectional Committee and approval of the Production and General Engineering Division Council.

Machining centres, milling machines and transfer machines present a wide range of hazards. Protection of operators and other persons from contact with moving cutting tools, especially when being rapidly rotated in the spindle or being swung from a tool magazine to the spindle during power-operated tool changing, or from contact with fast–moving workpieces, is of great importance. When power-operated mechanisms are provided for workpiece transfer, they can also create hazardous situations during loading/unloading and workpiece alignment, clamping or releasing of the work piece.

The machinery concerned and the extent to which hazards, hazardous situations or hazardous events are covered are indicated in the Scope of this standard. Where requirements of this type-C standard are different from those 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.

This standard was first published in 2019 based on ISO 16090-1 : 2017. This revision of this standard has been undertaken to align it with the latest version of ISO 16090-1.

The major changes have been incorporated in this revision are as follows:

a) Updation and addition of safety functions in Annex J;

b) Revision of operating modes and change of designation from MSO (mode of safe operation) to MO (mode of operation); and

c) Former MSO 3 (optional special mode for manual intervention under restricted operating conditions), in the current addition referred to as MO 3 (manual intervention under restricted operating conditions), has been revised in a way, that the usage of an enabling device is necessary in any case, that is dispensing of the enabling device is no longer possible.

The text of ISO standard has been approved as suitable for publication as an Indian Standard without deviations. Certain conventions are, however, not identical to those used in Indian Standards. Attention is particularly drawn to the following:

a) Wherever the words 'International Standard' appear referring to this standard, they should be read as 'Indian Standard'; and

b) Comma (,) has been used as a decimal marker while in Indian Standards, the current practice is to use a point (.) as the decimal marker.