Airtac SAI63 Standard Cylinder SAI63AX145S
The AirTAC Airtac SAI63 Standard Cylinder SAI63AX145S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 145mm 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
- Stroke145 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63AX145S
The AirTAC SAI63X145-S is a double-acting ISO 15552 profile cylinder engineered to deliver 1559N of push force at 0.5MPa. Its 145mm stroke is perfectly suited for mid-range automation tasks requiring moderate travel. The extruded aluminum barrel design omits tie rods, providing a clean exterior that matches standardized ISO 15552 mounting dimensions.
This specific configuration includes a SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance in humid environments. The integrated magnet (-S) enables seamless position detection using CMSE or DMSE series switches housed within the dual sensor grooves on the barrel. Fluid porting utilizes PT tapered threads, and the standard TPU seals handle operating temperatures from -20 to +70C.
Airtac SAI63 Standard Cylinder SAI63AX145S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63AX145S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 145 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 SAI63AX145S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×145 | 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 SAI63AX145S Is Used
Component Clamping
Secures aluminum or steel workpieces on CNC machining fixtures using 1559N of thrust at 0.5MPa, while the SUS420J2 rod resists coolant splash.
Package Diverting
Actuates a routing arm on a packaging line, using the 145mm stroke to push cartons cleanly from the main belt to a secondary lane.
Gate Control
Operates lightweight access gates or machine guarding doors, where the integrated magnet allows CMSE sensors to confirm closed positions.
Is the Airtac SAI63 Standard Cylinder SAI63AX145S the Right Cylinder?
Choose this 63mm bore when an application requires roughly 1559N of thrust at 0.5MPa, stepping up from the 50mm bore which provides 982N. If your system demands less force, the 50mm option offers a smaller footprint. For this 145mm stroke, side-load on the rod bearing is minimal, but if the application involves heavy off-center loads, always utilize external guide rails to prevent premature wear.
Because the SAI series relies on pneumatic pressure for movement, the adjustable air cushions only decelerate the piston near the end of the stroke. They do not hold a load if air pressure drops. If your machinery requires fail-safe position holding during an emergency stop or pressure loss, specify the SAIL (air-released lock) or BSAI (bidirectional clamp-lock) variant instead of the standard cylinder.
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 SAI63AX145S FAQ
At 0.5MPa, this 63mm bore cylinder provides 1559N of push force and 1402N of pull force. If operating pressure increases to 0.7MPa, the push force rises to 2182N.
Yes, the SAI63X145-S is dimensionally interchangeable per ISO 15552. You can drop it into existing mounts matching the standard interface, but ensure your porting matches the PT thread type specified for this configuration.
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