Airtac SAI63 Standard Cylinder SAI63X5
The AirTAC Airtac SAI63 Standard Cylinder SAI63X5 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 5mm 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
- Stroke5 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63X5
The AirTAC SAI63X5 is a double-acting ISO 15552 profile cylinder engineered for ultra-short stroke applications. Delivering 1559 N of push force at 0.5 MPa, it is designed for high-impact clamping and holding tasks where minimal travel is required. The extruded aluminum barrel eliminates tie-rods, providing a smooth, standardized exterior that drops directly into ISO 15552 mounting interfaces.
This specific configuration features a robust carbon steel piston rod and PT tapered port threads. Because the 5 mm stroke falls below standard production lengths, it is manufactured as a made-to-order non-standard stroke. The barrel includes dual-sided sensor grooves, allowing you to easily add CMSE or DMSE magnetic switches later by specifying the -S magnet option if your application evolves.
Airtac SAI63 Standard Cylinder SAI63X5 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X5 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 5 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 SAI63X5
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×5 | 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 SAI63X5 Is Used
Short-Stroke Clamping
Ideal for securing heavy workpieces during machining operations where a 5 mm stroke provides rapid, high-force clamping without consuming valuable fixture space.
Riveting & Staking
Delivers concentrated 1559 N impact force at 0.5 MPa for permanent mechanical joining, riveting, and staking operations in automated assembly cells.
Ejector Mechanisms
Functions as a compact, high-power knockout pin for ejecting finished parts from tight die cavities, leveraging the 63 mm bore's substantial thrust.
Is the Airtac SAI63 Standard Cylinder SAI63X5 the Right Cylinder?
Selecting this 63 mm bore model makes sense when you need the higher clamping force of a mid-sized cylinder but have strict spatial limits preventing a standard 25 mm minimum stroke. If your mechanism can accommodate a slightly longer extension, stepping down to a 50 mm bore reduces the 0.5 MPa push force to 982 N, which may be adequate for lighter duties.
Because the 5 mm stroke is exceptionally short, side-load bending is negligible. However, if your application requires the load to remain physically locked in place without constant air pressure, note that the standard SAI air cushions only decelerate the piston at stroke end and do not function as a holding brake. For positive position holding, consider the SAIL variant with an air-released lock or the BSAI bidirectional clamp-lock cylinder.
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 SAI63X5 FAQ
At a standard operating pressure of 0.5 MPa, the 63 mm bore generates 1559 N of push force. If you increase the pressure to 0.7 MPa, the push force rises to 2182 N.
Yes. The SAI series is a genuine ISO 15552 profile cylinder, meaning its mounting dimensions are fully interchangeable with other ISO 15552 standard cylinders. You can use standard FA, FB, or TC accessories across brands.
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