Airtac SAI63 Standard Cylinder SAI63AX15
The AirTAC Airtac SAI63 Standard Cylinder SAI63AX15 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 15mm 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
- Stroke15 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63AX15
The AirTAC SAI63X15 is a double-acting ISO 15552 profile cylinder engineered for compact, high-force actuation. Delivering a push force of 1559 N at 0.5 MPa, this 63 mm bore unit is tailored for very short 15 mm stroke applications that require rapid, repeatable movement. The extruded aluminum barrel design omits tie-rods, providing a clean exterior that simplifies mounting and sensor placement.
This specific configuration features a SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance compared to standard carbon steel. It utilizes PT tapered port threading, and because it lacks the -S magnet suffix, it operates without integrated magnetic sensing. For setups requiring end-of-stroke confirmation, the -S variant equipped for CMSE or DMSE switches would be necessary.
Airtac SAI63 Standard Cylinder SAI63AX15 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63AX15 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 15 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 SAI63AX15
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×15 | 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 SAI63AX15 Is Used
Short-Stroke Clamping
Ideal for securing heavy workpieces during machining, using its 1559 N push force to hold parts firmly in place over a rapid 15 mm travel distance.
Product Diverting
Provides robust actuation for heavy-duty conveyor diverters where a short, powerful stroke is needed to push products onto adjacent lanes quickly.
Press Fit Operations
Suitable for light-duty press fitting of bearings or pins, delivering consistent force in a compact cycle without requiring long rod extension.
Is the Airtac SAI63 Standard Cylinder SAI63AX15 the Right Cylinder?
Selecting the SAI63X15 is optimal when a project demands high thrust within a severely constrained footprint. If an application requires slightly less force, stepping down to a 50 mm bore yields 982 N at 0.5 MPa, whereas moving up to an 80 mm bore provides 2513 N. At a 15 mm stroke, side-load stress on the rod bearing is negligible, making external guides unnecessary for this specific length.
This cylinder serves as a dimensionally interchangeable drop-in replacement per ISO 15552 standards. Ensure your system specifies a G3/8 port, an M16x1.5 rod thread, and compatible mounting accessories such as an LB foot or TC trunnion. Because the standard SAI is double-acting, it relies entirely on continuous air pressure to maintain its position; it will drift if pressure is lost, so a SAIL variant is required for pneumatic locking.
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 SAI63AX15 FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder generates a push force of 1559 N and a pull force of 1402 N. At 0.7 MPa, the push force increases to 2182 N.
Yes, the SAI63X15 is dimensionally interchangeable per ISO 15552 standards. It shares the same mounting interface, G3/8 port, and M16x1.5 rod thread as other standard profile cylinders, allowing for seamless drop-in replacement.
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