Airtac SAI63 Standard Cylinder SAI63AX35S
The AirTAC Airtac SAI63 Standard Cylinder SAI63AX35S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 35mm 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
- Stroke35 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63AX35S
The AirTAC SAI63X35-S is a double-acting ISO 15552 profile cylinder engineered for compact, high-force actuation. Operating at 0.5 MPa, it generates 1559 N of push force, making it ideal for short 35 mm strokes requiring immediate power transfer.
This configuration features a SUS420J2 stainless steel piston rod (option A) for enhanced corrosion resistance. It includes a built-in magnet (-S) for direct compatibility with CMSE and DMSE position sensors, and utilizes PT tapered port threads.
Airtac SAI63 Standard Cylinder SAI63AX35S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63AX35S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 35 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 SAI63AX35S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×35 | 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 SAI63AX35S Is Used
Short-Stroke Pressing
Applies 1559 N of force at 0.5 MPa for compact pressing, riveting, or inserting pins in confined machinery layouts.
Heavy-Duty Diverter
Packs enough punch to deflect heavy product flows on a conveyor line within a tight 35 mm stroke envelope.
Part Ejection
Quickly eject molded or machined components from fixtures, utilizing the robust SUS420J2 rod to withstand impact.
Is the Airtac SAI63 Standard Cylinder SAI63AX35S the Right Cylinder?
Choose this 63 mm bore when a 50 mm bore (982 N at 0.5 MPa) lacks the necessary thrust for your short-stroke clamping or pressing task. The 35 mm stroke is optimal for tight spaces where a 25 mm stroke is insufficient. For applications requiring position holding without constant air pressure, integrate the SAIL locking variant or use an external rod lock.
As a genuine ISO 15552 profile cylinder, it provides a dimensionally interchangeable mounting interface. It drops in seamlessly with standard FA/FB flanges or TC trunnion accessories. Ensure your pneumatic plumbing matches the PT G3/8 port.
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 SAI63AX35S FAQ
At a standard 0.5 MPa operating pressure, this 63 mm bore cylinder produces 1559 N of push force and 1402 N of pull force. It can reach 2182 N push at 0.7 MPa.
Yes, it is a true ISO 15552 profile cylinder. Its standardized mounting dimensions allow it to serve as a drop-in replacement for other ISO 15552 profile cylinders, utilizing standard mounting accessories.
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