Overview
SIST ISO 15552:2021 - Pneumatic fluid power - Cylinders with detachable mountings, 1 000 kPa (10 bar) series, bores from 32 mm to 320 mm - establishes a metric series of basic, mounting and accessories dimensions to ensure interchangeability of single- and double-rod pneumatic cylinders (with or without provision for magnetic sensors). The standard covers cylinders rated to a maximum of 1 000 kPa (10 bar) and defines dimensions, nominal stroke rules and tolerances for bores 32–320 mm.
Key topics and technical requirements
- Interchangeability and dimensional series: Metric basic dimensions for single- and double-rod cylinders to enable component interchange across manufacturers.
- Rated pressure: Applies to the 1 000 kPa (10 bar) series of pneumatic cylinders.
- Bore sizes: Includes AL = 32, 40, 50, 63, 80, 100, 125, 160, 200, 250, 320 mm (per ISO 3320).
- Mounting and accessory dimensions: Detailed tables and figures define mounting types (e.g., MF1, MF2, MP2, MP4, MP6, MS1, MT4) and accessory types (e.g., AA4, AA6, AB6, AB7, AT4) consistent with ISO 6099 symbols.
- Nominal stroke selection and tolerances: Nominal strokes are to be selected from ISO 4393; stroke tolerances are specified (with tolerances given for strokes up to and including 1 250 mm; for longer strokes tolerances are by national standard or agreement).
- Product designation and identification: Provides product designation format (example: ISO 15552 – MT 4 – 80×200) and recommended identification statement for catalogs and test reports.
- Piston rod and port details: Includes requirements such as piston rod diameter relative to thread diameter and port size assignments for each bore.
Practical applications and who uses this standard
SIST ISO 15552:2021 is practical for:
- Pneumatic cylinder manufacturers - to design products that meet common mounting and accessory dimensions for interchangeability.
- Machine designers and OEMs - to specify cylinders that fit standard mounts and accessories, simplifying assembly and maintenance.
- Procurement and maintenance teams - to confirm compatibility when replacing or sourcing cylinders and spare parts.
- System integrators and automation engineers - to ensure mechanical interfaces, mounting types and sensor provisions match system requirements.
Typical application areas include industrial automation, material handling, packaging machines, robotics and general pneumatic actuation systems where standardized mounting and accessory interchangeability reduces downtime and inventory complexity.
Related standards
- ISO 3320 - Cylinder bores and piston rod diameters (metric series)
- ISO 4393 - Basic series of piston strokes
- ISO 4395 - Piston rod end types and dimensions
- ISO 6099 - Mounting and accessory symbols (referenced for types)
- ISO 16030 - Ports and stud ends
- ISO 5598 - Fluid power vocabulary
For specification text in sales literature or test reports, use the identification statement given in SIST ISO 15552:2021: “Basic, mounting and accessories dimensions of pneumatic cylinder according to ISO 15552 …”
