Airtac SAI63 Standard Cylinder SAI63BX70
The AirTAC Airtac SAI63 Standard Cylinder SAI63BX70 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 70mm 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
- Stroke70 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 SAI63BX70
The AirTAC SAI63X70 is a double-acting ISO 15552 profile cylinder built with a 63mm bore and 70mm stroke. It provides a thrust of 1559 N at 0.5 MPa, making it well-suited for medium-force industrial handling tasks.
This specific configuration features a SUS304 stainless steel piston rod for superior corrosion resistance and utilizes PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
Airtac SAI63 Standard Cylinder SAI63BX70 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63BX70 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 70 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 SAI63BX70
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×70 | 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 SAI63BX70 Is Used
Clamping Operations
Provides reliable 1559 N clamping force at 0.5 MPa for securing workpieces during machining or welding processes.
Product Diverting
Actuates diverting arms or sorting gates on conveyor lines where a short, rapid 70mm stroke is required.
Press Ejection
Ejects finished parts from small pneumatic presses, utilizing the SUS304 rod to withstand minor environmental exposure.
Is the Airtac SAI63 Standard Cylinder SAI63BX70 the Right Cylinder?
If your application requires less force, stepping down to the 50mm bore yields 982 N at 0.5 MPa, while moving up to the 80mm bore provides 2513 N. Because this 70mm stroke is relatively short, side-load stress on the rod bearing is minimal compared to longer travels.
For direct compatibility, match the 63mm bore, 70mm stroke, G3/8 port, and desired mounting accessory like an FA flange or LB foot. Note that this standard cylinder relies on adjustable air cushions to decelerate the piston at stroke ends; it does not mechanically hold a load if air pressure is lost. For position holding without live pressure, consider the SAIL locking variant.
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 SAI63BX70 FAQ
At 0.5 MPa, the push force is 1559 N and the pull force is 1402 N. At 0.7 MPa, the push force increases to 2182 N.
Yes, the SAI63X70 is a true ISO 15552 profile cylinder, making it dimensionally interchangeable with other standard ISO 15552 cylinders of the same bore and stroke.
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