Revised Standard from Last Update.

NATIONAL FOREWORD

This Indian Standard (Part 4) (First Revision) which is identical with ISO 11901-4: 2021 ‘Tools for pressing - Gas springs - Part 4: Gas spring with increased spring force and same built height’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on the recommendation of the Metal Forming Machines Sectional Committee and approval of the Production and General Engineering Division Council.

This standard specifies the dimensions (in millimeters), nominal initial forces and types of gas springs. It is applicable to gas springs with increased spring force and same built height of type 7500 to 200000, pressurized with nitrogen with a nominal initial force of between 7400 N (with a tolerance of ±5 %) and 200000 N (with a tolerance of ±5 %), for use in press tools.