Overview
ISO 10762:2015 - "Hydraulic fluid power - Mounting dimensions for cylinders, 10 MPa (100 bar) series" defines standardized mounting dimensions for hydraulic cylinders designed for 10 MPa (100 bar) service. The standard ensures interchangeability of cylinders by specifying bore sizes, mounting types, piston-rod characteristics, port positions and related dimensional tolerances while allowing manufacturers flexibility in detailed design and technical development.
Key Topics
- Pressure rating: 10 MPa (100 bar) series - targeted for hydraulic fluid power systems.
- Bore sizes included: 40, 50, 63, 80, 100, 125, 160, 200 mm (per ISO 3320 metric series).
- Stroke tolerances:
- ≤ 1 250 mm: +2 / −0 mm
-
1 250 mm and ≤ 3 150 mm: +5 / −0 mm
-
3 150 mm and ≤ 8 000 mm: +8 / −0 mm
- Mounting types (identified per ISO 6099): ME5, ME6, MP1, MP3, MP5, MS2, MT1, MT4, MX1, MX2, MX3 - includes rectangular flanges, clevis/eye ends, side lugs, trunnions, and tie-rod/stud-end configurations.
- Piston rod characteristics: Specifies a shouldered male thread end as the baseline; alternative rod diameters/threads referenced to ISO 3320 and ISO 4395.
- Ports and connections: Port dimensions and positions provided; ISO 6149-1 (metric threads with O‑ring sealing) is preferred for new designs; ISO 1179-1 ports also referenced.
- Documentation: Includes detailed figures and tables (Figures 1–13, Tables 1–13) covering dimensions and tolerances for each mounting type.
Applications
ISO 10762 is directly useful for:
- Hydraulic cylinder manufacturers designing 100 bar cylinders to be interchangeable across suppliers.
- OEM designers and machine builders specifying standard mounting interfaces for mobile and industrial hydraulic equipment.
- Purchasing and procurement teams seeking compatible replacement cylinders or components.
- Maintenance and service engineers ensuring correct replacements conform to established mounting and stroke tolerances.
Practical benefits include reduced design rework, simplified spare-part inventory, and improved cross-vendor compatibility for hydraulic systems.
Related Standards
Normative references and closely related standards include:
- ISO 3320 - cylinder bores and rod diameters (metric series)
- ISO 4395 - piston rod end types and dimensions
- ISO 6099 - identification code for mounting dimensions and types
- ISO 1179-1 and ISO 6149-1 - ports and stud end connections
- ISO 5598 - fluid power vocabulary
- ISO 273 - clearance holes for fasteners
Using ISO 10762 with these standards helps ensure consistent, industry‑compatible hydraulic cylinder mounting dimensions, improving interoperability and lifecycle support across hydraulic equipment.