Airtac SAI63 Standard Cylinder SAI63AX65
The AirTAC Airtac SAI63 Standard Cylinder SAI63AX65 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 65mm 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
- Stroke65 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63AX65
The AirTAC SAI63X65 is a double-acting ISO 15552 profile cylinder engineered to deliver a robust 1559N push force at 0.5 MPa. This specific 65mm stroke is a non-standard, made-to-order length designed to fit precise intermediate travel requirements where standard 50mm or 75mm options would be excessive or insufficient.
Built with a SUS420J2 stainless steel piston rod (material code A), this unit offers superior corrosion resistance compared to standard carbon steel. It features PT tapered port threads and utilizes adjustable air cushions at both ends to smoothly decelerate the piston within its 30-800 mm/s operating speed range.
Airtac SAI63 Standard Cylinder SAI63AX65 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63AX65 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 65 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 SAI63AX65
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×65 | 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 SAI63AX65 Is Used
Custom Assembly Press
Provides 1559N of precise clamping force at 0.5 MPa for seating bearings in custom automated cells.
Mid-Stroke Diverter
The exact 65mm travel pushes product lanes accurately without the wasted cycle time of a standard 75mm stroke.
Forming Station Stop
SUS420J2 stainless rod material withstands humid plant environments while halting heavy workpieces.
Is the Airtac SAI63 Standard Cylinder SAI63AX65 the Right Cylinder?
Choose this 63mm bore when a 50mm bore (982N at 0.5 MPa) lacks the necessary thrust but an 80mm bore (2513N at 0.5 MPa) would physically overpower the assembly. The 65mm stroke provides exact end-of-stroke positioning for custom machinery. Because this is a genuine AirTAC component, it guarantees true dimensional interchangeability with other ISO 15552 cylinders.
For drop-in replacement planning, match the 63mm bore, 65mm stroke, G3/8 port, and your required mounting accessory (such as an FA flange or LB foot). Note that a plain SAI cylinder will drift and drop its load if air pressure is lost; the air cushion only decelerates the piston near stroke ends and does not function as a holding brake. If your application requires position holding without live pressure, consider the SAIL or BSAI locking variants.
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 SAI63AX65 FAQ
At 0.5 MPa, the SAI63X65 generates 1559N of push force and 1402N of pull force. At 0.7 MPa, the push force increases to 2182N.
Yes, the SAI profile barrel is dimensionally interchangeable per ISO 15552, making it a drop-in replacement for other standard ISO cylinders with matching 63mm bore and mounting dimensions.
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