Airtac SAI63 Standard Cylinder SAI63X900
The AirTAC Airtac SAI63 Standard Cylinder SAI63X900 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 900mm 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
- Stroke900 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63X900
The AirTAC SAI63X900 is a double-acting ISO 15552 profile cylinder engineered for extended linear travel. Delivering a robust 1559 N of push force at 0.5 MPa, it integrates seamlessly into existing setups requiring broad displacement. This specific configuration features a standard carbon steel piston rod and PT tapered port threads for secure, leak-free pneumatic connections.
Because this unit lacks the -S magnet option, it cannot host CMSE or DMSE electronic sensors directly in the barrel grooves. For applications requiring end-of-stroke detection on this extended 900 mm stroke, external mechanical switches or a related SAI variant with the magnet factory-installed would be necessary.
Airtac SAI63 Standard Cylinder SAI63X900 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X900 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 900 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 SAI63X900
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×900 | 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 SAI63X900 Is Used
Extended Material Handling
Ideal for pushing pallets or workpieces across long conveyor gaps where a standard stroke falls short but high force is still required.
Large Press Ejection
Provides the necessary reach and 1559 N of force to eject finished parts from deep press beds or molding machinery.
Automated Storage Retrieval
Handles push-off mechanisms in automated warehousing systems that require moving goods across wide storage bays.
Is the Airtac SAI63 Standard Cylinder SAI63X900 the Right Cylinder?
This 63 mm bore provides a middle-ground thrust capacity, offering significantly more power than a 50 mm bore (982 N at 0.5 MPa) without the bulk of an 80 mm bore (2513 N at 0.5 MPa). If your application requires less force and faster cycling, stepping down is advisable. The G3/8 port and M16x1.5 rod thread are standard for this bore size.
At 900 mm of stroke, the unsupported length of the piston rod is substantial. Side loads will cause severe bending stresses on the rod bearing, so utilizing an external guide rail or a fully guided cylinder is strongly recommended to prevent premature wear. Additionally, this standard SAI cylinder relies on live air pressure to maintain its position; if pneumatic power is lost, the load will drop. For fail-safe position holding, consider the SAIL variant with an air-released lock or the BSAI bidirectional clamp-lock.
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 SAI63X900 FAQ
The SAI63X900 generates a theoretical push force of 1559 N at 0.5 MPa and up to 2182 N at 0.7 MPa.
Yes, the SAI63X900 is dimensionally interchangeable per ISO 15552, allowing it to serve as a drop-in replacement for other standard ISO 15552 profile cylinders with matching bore and stroke dimensions.
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