The standard for pneumatic cylinders is primarily set by the International Organization for Standardization (ISO) and includes several different standards that cover various aspects of pneumatic cylinders, such as dimensions, mounting, and performance. The most common standards include:
1. **ISO 6431**: Specifies the dimensions and mounting configurations for double-acting pneumatic cylinders with bores from 32 mm to 320 mm. It is a widely adopted standard for industrial applications and ensures compatibility between cylinders and mounting accessories from different manufacturers.
2. **ISO 15552**: This standard is the updated version of ISO 6431. It covers pneumatic fluid power-cylinders with removable mountings and strokes that can be adjusted. It specifies the basic dimensions and mounting configurations for cylinders with bores from 32 mm to 320 mm.
3. **ISO 21287**: Covers compact pneumatic cylinders, specifying the dimensions and mounting interfaces for cylinders with smaller overall dimensions. This standard is used for applications where space is limited.
4. **ISO 6432**: Specifies the dimensions and mounting configurations for mini pneumatic cylinders, typically with bore sizes ranging from 8 mm to 25 mm. These cylinders are often used in light-duty or space-constrained applications.
5. **ISO 6020-2**: Specifies the dimensions and mounting for 16 MPa (160 bar) hydraulic cylinders but is sometimes referenced in the context of heavy-duty pneumatic cylinders, particularly in applications requiring robust construction.
These standards ensure interoperability, consistency, and quality across pneumatic cylinders from different manufacturers, making it easier to design and maintain pneumatic systems.
