Airtac SAI63 Standard Cylinder SAI63X90
The AirTAC Airtac SAI63 Standard Cylinder SAI63X90 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 90mm 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
- Stroke90 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63X90
The AirTAC SAI63X90 is a double-acting ISO 15552 profile cylinder offering 1559 N of push force at 0.5 MPa. Its 90 mm stroke provides an optimal mid-range extension for medium-duty positioning tasks. The extruded aluminum barrel design omits traditional tie rods, presenting a clean exterior that simplifies mounting and machine integration.
This specific configuration features a standard carbon steel piston rod and PT tapered port threads. For environments requiring heat resistance, the base TPU seals can be swapped for Viton (H) options, expanding operational versatility beyond the standard specification.
Airtac SAI63 Standard Cylinder SAI63X90 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X90 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 90 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 SAI63X90
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×90 | 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 SAI63X90 Is Used
Component Clamping
Secures medium-weight metal or composite parts during machining operations, utilizing its 1559 N push force to prevent workpiece shifting.
Package Diverting
Actuates diverter arms on automated packaging lines, using the 90 mm stroke to push cartons smoothly between adjacent conveyor belts.
Press Ejection
Ejects formed parts from light-duty press dies, providing rapid retraction to maintain high cycle rates without lingering in the tooling area.
Is the Airtac SAI63 Standard Cylinder SAI63X90 the Right Cylinder?
Selecting this bore size is appropriate when an application requires upward of 1559 N at 0.5 MPa, bridging the gap between the 50 mm bore (982 N) and the larger 80 mm bore (2513 N). Because the stroke is under 300 mm, side-load stress on the rod bearing is minimal compared to longer extensions, though external guides are always recommended for heavy off-center loads.
As a standard double-acting cylinder, the SAI63X90 relies on live air pressure to hold its position; it will drift if air is removed or a valve is centered. For applications requiring position holding without continuous pressure, consider the SAIL (air-released lock) or BSAI (bidirectional clamp-lock) variants. To replace this unit, match the 63 mm bore, 90 mm stroke, G3/8 port, PT thread, and standard mounting accessories like FA flange or TC trunnion.
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 SAI63X90 FAQ
The SAI63X90 cylinder provides a push force of 1559 N at 0.5 MPa and a pull force of 1402 N at 0.5 MPa. At the maximum operating pressure of 1.0 MPa, the theoretical maximum force is 318 kgf.
Yes, the SAI63X90 is dimensionally interchangeable per ISO 15552 standards. It serves as a drop-in replacement for other ISO 15552 profile cylinders, provided you match the 63 mm bore, 90 mm stroke, G3/8 port, and mounting interface.
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