Airtac SAI63 Standard Cylinder SAI63BX900
The AirTAC SAI63 Standard Cylinder SAI63BX900 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ63 mm
- Stroke900 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAI63 Standard Cylinder SAI63BX900
The AirTAC SAI63X900 is a double-acting ISO 15552 profile cylinder featuring a 63mm bore and a 900mm stroke. It generates 1559 N of push force and 1402 N of pull force at 0.5 MPa, making it well-suited for high-demand industrial positioning tasks over extended distances.
This specific configuration incorporates a SUS304 stainless steel piston rod (option B) for superior corrosion resistance in demanding environments. It utilizes PT tapered port threads (G3/8) and does not include a magnet, meaning it is optimized for pure actuation rather than electronic position sensing.
Airtac SAI63 Standard Cylinder SAI63BX900 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63BX900 |
|---|---|
| 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 SAI63BX900
| 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 SAI63BX900 Is Used
Extended Material Transfer
Drives long-stroke pushers on packaging lines, moving products smoothly across 900mm gaps without intermediate linkages.
Corrosive Environment Actuation
The SUS304 stainless steel rod excels in food processing or chemical washdown areas where standard carbon steel rods would pit and fail.
Large Door Manipulation
Provides the 1559 N force needed to open and close heavy industrial machine guarding or processing vaults over a wide 900mm span.
Is the Airtac SAI63 Standard Cylinder SAI63BX900 the Right Cylinder?
This 63mm bore provides a balanced output between the lighter 50mm option (982 N push at 0.5 MPa) and the heavier 80mm class (2513 N push at 0.5 MPa). Because this model features a 900mm stroke, the extended rod is highly susceptible to bending under side loads; utilizing an external guide rail or a fully guided cylinder is strongly recommended to prevent premature rod-bearing wear.
Remember that the standard SAI does not maintain its position if air pressure is removed—the piston will drift. If your application requires static holding without continuous live pressure, consider the SAIL (air-released lock) or BSAI (bidirectional clamp-lock) variants. As a true ISO 15552 profile cylinder, it serves as a direct replacement for any standard 63mm bore, 900mm stroke, G3/8 port interface actuator.
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 SAI63BX900 FAQ
At a 0.5 MPa operating pressure, this 63mm bore cylinder provides 1559 N of push force and 1402 N of pull force. At 0.7 MPa, the push force increases to 2182 N.
Yes, the SAI63X900 is dimensionally interchangeable per ISO 15552. You can drop it in place of any standard 63mm bore profile cylinder with a 900mm stroke and G3/8 port, provided you do not require a magnetic piston for sensor tracking.
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