Importance of Having a Standardized Cylinder Size
Cylinders that comply with ISO standardization have completely changed the way machine builders and end users apply pneumatic actuator systems. These brand-independent standards ensure dimensional compatibility between cylinders produced by different manufacturers, thereby guaranteeing operational continuity for decades to come.
Overview of ISO and NFPA Interchangeability
The ISO metric standard covers the global market and is one of the most widely applied standards in the industrial pneumatics field. It specifies key parameters such as cylinder bore sizes (32 to 320 mm), port threads, mounting interfaces, recommended stroke lengths, and available accessories.
The standard also defines mounting options, such as trunnion mounting configurations and U-bracket accessories.
The ISO standards most commonly associated with cylinders include:
ISO 15552: Standard for profile and tie-rod cylinders.
ISO 6432: Standard for compact round cylinders.
This standard specifies cylindrical cylinders with a cylinder diameter ranging from 8-25mm, which is also the mini cylinder type. Its end cover is not removable, the piston rod is single-out, the threaded interface is standardized, and the stroke can reach 300mm.
Applications:
Suitable for small, light-load, and high-frequency,clamping, pushing, and positioning in confined spaces
Automation equipment
Electronic assembly
Food packaging
ISO 21287: Applicable to compact cylinders, typically used in space-restricted applications.
