Airtac SAI63 Standard Cylinder SAI63AX75S
The AirTAC Airtac SAI63 Standard Cylinder SAI63AX75S 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 SAI63AX75S
The AirTAC SAI63X75-S is a double-acting ISO 15552 profile cylinder engineered to deliver 1559N of push force at 0.5 MPa. Its 75mm stroke is optimal for short-travel clamping and indexing tasks. The extruded aluminum barrel design omits tie rods, providing a clean exterior that is dimensionally interchangeable with other ISO 15552 cylinders.
This specific configuration includes a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance in humid environments. It features PT tapered port threads and comes equipped with a magnet (-S), allowing seamless integration with CMSE and DMSE sensor switches via the dual-side sensor grooves.
Airtac SAI63 Standard Cylinder SAI63AX75S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63AX75S |
|---|---|
| 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 SAI63AX75S
| 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 SAI63AX75S Is Used
Short-Stroke Clamping
Provides 1559N of holding force at 0.5 MPa for securing workpieces during machining or welding operations.
Package Diverting
Ideal for actuating sorting gates on conveyor lines where a rapid 75mm movement is required.
Material Stopper
Functions as a robust pneumatic stop for mid-weight pallets or workpiece pallets in automated cells.
Is the Airtac SAI63 Standard Cylinder SAI63AX75S the Right Cylinder?
Selecting this 63mm bore over the smaller 40mm option upgrades your thrust from 628N to 1559N at 0.5 MPa, while stepping up to the 80mm bore yields 2513N if your application requires heavier loads. The 75mm stroke keeps the assembly compact, minimizing space requirements without sacrificing power.
Because the standard SAI design relies on adjustable air cushions at both ends to decelerate the piston, it cannot hold a load in place if air pressure is lost. For vertical loads requiring safety locking, consider the SAIL variant or an external rod lock. This model uses a G3/8 port and supports standard ISO 15552 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 SAI63AX75S FAQ
At 0.5 MPa operating pressure, this 63mm bore cylinder provides 1559N of push force and 1402N of pull force. At 0.7 MPa, the push force increases to 2182N.
Yes, the SAI63X75-S is dimensionally interchangeable per ISO 15552 standards. You can drop it in as a replacement for other ISO 15552 profile cylinders, ensuring the G3/8 port and mounting dimensions match.
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