Airtac SAI63 Standard Cylinder SAI63X75S
The AirTAC Airtac SAI63 Standard Cylinder SAI63X75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 75mm 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
- Stroke75 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63X75S
The AirTAC SAI63X75-S is a double-acting ISO 15552 profile cylinder engineered for intermediate thrust tasks, delivering a push force of 1559 N at 0.5 MPa. Its 75 mm stroke provides rapid, compact actuation for automated machinery. The extruded aluminum barrel design omits tie-rods, ensuring a clean exterior that drops directly into standardized ISO 15552 mounting footprints.
Equipped with a magnetic piston (-S), this unit supports position detection via CMSE or DMSE reed switches fitted into the dual sensor grooves on the barrel. The standard carbon steel piston rod offers robust durability for general industrial pneumatics, while the adjustable air cushions at both ends ensure smooth end-of-stroke deceleration.
Airtac SAI63 Standard Cylinder SAI63X75S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 75 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 SAI63X75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×75 | 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 SAI63X75S Is Used
Mid-Range Clamping
Secures heavy metal workpieces during CNC machining using the 1559 N push force at 0.5 MPa.
Package Diverting
Actuates routing gates on high-speed packaging lines where the 75 mm stroke quickly redirects products.
Lift and Position
Raises intermediate pallets or fixtures into machining position, utilizing the integrated magnet for precise end-of-stroke confirmation.
Is the Airtac SAI63 Standard Cylinder SAI63X75S the Right Cylinder?
Select this 63 mm bore when an application requires stepping up from the 50 mm class (which provides 982 N push at 0.5 MPa) to handle heavier payloads without the bulk of an 80 mm body. The 75 mm stroke is optimal for short clamping or lifting sequences where a longer extension would slow cycle times. Because the bore features a G3/8 port, it provides ample airflow to maintain high operational speeds.
For installations needing positive load holding during a pressure drop or valve centering, note that the standard adjustable cushion only decelerates the piston and does not act as a brake. In such scenarios, specify the SAIL variant with an air-released lock or utilize an external pilot-operated check valve. To replace an existing actuator, match the 63 mm bore, 75 mm stroke, PT threaded G3/8 port, and select appropriate mounting accessories like an 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 SAI63X75S FAQ
At a 0.5 MPa operating pressure, this 63 mm bore cylinder generates a push force of 1559 N and a pull force of 1402 N. If pressure is increased to 0.7 MPa, the push force reaches 2182 N.
Yes, the SAI63X75-S is dimensionally interchangeable per ISO 15552. You can drop it into existing mounting interfaces by matching the 63 mm bore, 75 mm stroke, and G3/8 port size.
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