ISO 11901-3:2021 PDF

Overview

ISO 11901-3:2021 - Tools for pressing - Gas springs - Part 3 defines requirements for nitrogen-filled gas springs with increased spring force and compact built height used in press tools. The standard covers dimensional specifications (millimetres), nominal initial forces, types (type 1 700 to 200 000), marking, technical delivery conditions and designation. It ensures interchangeability, safe pressurization and consistent supply conditions for high-force gas springs used in industrial pressing applications.

Key topics and technical requirements

• Scope and range: Gas springs of types 1 700 to 200 000 with nominal initial forces from 1 700 N to 200 000 N (tolerance ±5 %). Intended specifically for use in press tools.
• Dimensions & interchangeability: Detailed tables and figures specify lengths, diameters, mounting hole patterns and other critical dimensions. General tolerances follow ISO 2768-m.
• Filling pressure limits: Maximum filling pressures differ by type (smaller types can be filled up to 18 MPa; many larger types up to 15 MPa - see tables in the standard).
• Pressure filling inlet:
  • Types