Airtac SAI63 Standard Cylinder SAI63BX20
The AirTAC Airtac SAI63 Standard Cylinder SAI63BX20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 20mm 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
- Stroke20 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 SAI63BX20
The AirTAC SAI63X20 is a double-acting ISO 15552 profile cylinder engineered for compact, high-force actuation. It provides a push force of 1559 N at 0.5 MPa and a pull force of 1402 N. The 20 mm stroke makes it highly suitable for short-travel clamping and ejector tasks.
Built to exact ISO 15552 mounting interface standards, this model ensures a direct replacement for other ISO 15552 profile cylinders. It features a SUS304 stainless steel piston rod for superior corrosion resistance and utilizes PT tapered port threads for a robust pneumatic connection.
Airtac SAI63 Standard Cylinder SAI63BX20 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63BX20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 20 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 SAI63BX20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×20 | 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 SAI63BX20 Is Used
Short-Stroke Clamping
Delivers 1559 N of clamping force at 0.5 MPa for securing heavy workpieces during machining operations.
Product Ejection
Rapidly ejects parts from conveyor lines or press beds using a compact 20 mm stroke.
Press Ejection
Ideal for knocking stamped or formed components out of dies in automated press setups.
Is the Airtac SAI63 Standard Cylinder SAI63BX20 the Right Cylinder?
Select this 63 mm bore when a 50 mm bore (982 N at 0.5 MPa) lacks the necessary thrust, but an 80 mm bore (2513 N at 0.5 MPa) would be physically oversized. The 20 mm stroke is optimal for rapid, short-cycle operations. Because the standard SAI lacks a locking mechanism, the piston will drift if air pressure is lost; for applications requiring dead-load holding, consider the SAIL variant or an external rod lock. To match this cylinder, specify a 63 mm bore, 20 mm stroke, G3/8 PT ports, and the desired mounting accessory like an FA flange.
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 SAI63BX20 FAQ
At 0.5 MPa, the SAI63X20 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 SAI63X20 is a genuine AirTAC profile cylinder built to the ISO 15552 mounting interface, making it dimensionally interchangeable with other ISO 15552 standard cylinders.
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.
Fast Reply
Most inquiries answered within 7-8 hours.
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