Airtac SAI63 Standard Cylinder SAI63AX65S
The AirTAC Airtac SAI63 Standard Cylinder SAI63AX65S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 65mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ63 mm
- Stroke65 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63AX65S
The AirTAC SAI63X65-S is a double-acting ISO 15552 profile cylinder engineered for standardized pneumatic integration. Operating at 0.5 MPa, it generates 1559 N of push force and 1402 N of pull force across its 65 mm stroke. This specific travel length is highly effective for short, rapid clamping sequences and compact machine movements.
Built with a SUS420J2 stainless steel piston rod (material code A), this unit provides superior corrosion resistance compared to standard carbon steel. The -S suffix indicates an integrated magnet, allowing seamless operation with CMSE and DMSE series reed switches via the dual sensor grooves machined into the extruded aluminum barrel.
Airtac SAI63 Standard Cylinder SAI63AX65S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63AX65S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 65 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M16×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 36 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAI63 Standard Cylinder SAI63AX65S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×65 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAI63 Standard Cylinder SAI63AX65S Is Used
Short-Stroke Clamping
Ideal for holding machined components securely in CNC fixtures using its 1559 N push force over a tight 65 mm travel.
Package Diverting
Drives compact routing gates on conveyor lines where a 50 mm stroke falls short but a 100 mm stroke would overtravel.
Component Seating
Presses small bearings or pins into housings on automated assembly lines, utilizing the SUS420J2 rod for durability.
Is the Airtac SAI63 Standard Cylinder SAI63AX65S the Right Cylinder?
Selecting this 63 mm bore yields 1559 N at 0.5 MPa, offering a notable strength increase over the 50 mm bore (982 N) while avoiding the bulk of an 80 mm bore (2513 N). The 65 mm stroke is optimal for tight envelopes where a 50 mm or 100 mm standard stroke would be excessive. Because the stroke is under 300 mm, rod-bearing bending stress is minimal, though external guides should still govern any heavy lateral loads.
As a dimensionally interchangeable ISO 15552 cylinder, it serves as a drop-in replacement for other ISO 15552 profile cylinders. For this configuration, ensure your manifold matches the PT (tapered) G3/8 port, pair it with appropriate FA/FB flanges or LB foot brackets, and utilize CMSE/DMSE switches in the dual barrel grooves. Note that the adjustable air cushions decelerate the piston at end-of-stroke; they do not lock the rod. If pressure drops, the load will drift. For fail-safe holding, specify an SAIL or BSAI variant.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAI63 Standard Cylinder SAI63AX65S FAQ
At 0.5 MPa, this cylinder provides 1559 N of push force and 1402 N of pull force. At 0.7 MPa, the push force increases to 2182 N.
Yes, it shares the exact ISO 15552 mounting interface dimensions, making it a drop-in replacement for other ISO 15552 profile cylinders. Ensure your setup accommodates the G3/8 PT port and the dual sensor grooves.
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