Airtac SAI63 Standard Cylinder SAI63BX140
The AirTAC SAI63 Standard Cylinder SAI63BX140 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 140mm 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
- Stroke140 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 SAI63BX140
The AirTAC SAI63X140 is a double-acting ISO 15552 profile cylinder offering 1559 N of push force at 0.5 MPa. Its 140 mm stroke provides the exact mid-range travel needed for general automation tasks.
This specific configuration features a SUS304 stainless steel rod for superior corrosion resistance and utilizes PT tapered port threads. Because it lacks the -S magnet option, it is optimized for pure actuation rather than position sensing.
Airtac SAI63 Standard Cylinder SAI63BX140 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63BX140 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 140 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 SAI63BX140
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×140 | 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 SAI63BX140 Is Used
Component Clamping
Provides reliable 1559 N clamping force at 0.5 MPa to hold medium-weight metal workpieces securely during milling or drilling operations.
Package Diverting
Uses the 140 mm stroke to push moderate cartons off a main conveyor belt line at high cycling speeds.
Press Ejection
Ejects formed parts from hydraulic presses, leveraging the SUS304 rod to withstand occasional splashes of cutting fluid.
Is the Airtac SAI63 Standard Cylinder SAI63BX140 the Right Cylinder?
Select this 63 mm bore when a 50 mm bore (982 N at 0.5 MPa) is insufficient and an 80 mm bore (2513 N) would be physically oversized. The 140 mm stroke is well below the 1500 mm maximum standard stroke, keeping the rod highly rigid without requiring external guides.
If your machinery requires the load to stay fixed after air pressure is removed, remember that the standard adjustable air cushions only decelerate the piston at stroke end and do not act as a brake. For secure load holding without live pressure, specify the SAIL (air-released lock) or BSAI (clamp-lock) variant instead. This model is a direct dimensional direct replacement for any ISO 15552 cylinder with a 63 mm bore, 140 mm stroke, G3/8 port, and standard mounting accessories like FA flanges or TC trunnions.
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 SAI63BX140 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 SAI63X140 is a genuine ISO 15552 profile cylinder, making its mounting interface dimensionally interchangeable with other ISO 15552 cylinders of the same bore and stroke. It is a direct replacement.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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