
The AirTAC SAI63 Standard Cylinder SAI63BX325S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 325mm 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.
The AirTAC SAI63X325-S is a double-acting ISO 15552 profile cylinder engineered to deliver 1559 N of push force and 1402 N of pull force at 0.5 MPa. Its 325 mm stroke makes it highly suitable for medium-distance material handling and automated clamping tasks. As a genuine AirTAC component, it guarantees dimensional interchangeability with other ISO 15552 actuators.
This specific configuration includes a SUS304 stainless steel rod (option B) for superior corrosion resistance in humid or washdown environments. It features a PT tapered port thread and an integrated magnet (-S) that interfaces seamlessly with CMSE and DMSE sensor switches mounted in the extruded aluminum barrel's dual grooves.
| Model | Airtac SAI63 Standard Cylinder SAI63BX325S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 325 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.
| 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.
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×325 | 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.
Executes 325 mm strokes to push packages across wider conveyor belts, utilizing the 1559 N thrust to redirect heavy cartons reliably.
Leverages the SUS304 rod option to securely hold machined parts in humid machining centers without risking surface rust.
Provides the extended travel required to open and close tall safety gates on automated storage and retrieval systems.
If your application requires less force, the neighboring 50 mm bore provides 982 N at 0.5 MPa, while stepping up to the 80 mm bore yields 2513 N. For this 325 mm stroke, the unsupported rod length is significant; side loads can cause rod-bearing bending and premature wear. Employ an external guide rail or a fully guided cylinder to absorb lateral forces and protect the actuator.
This model uses a G3/8 PT port and mounts via standard ISO 15552 accessories like FA flanges or TC trunnions. Note that the adjustable air cushions only decelerate the piston near stroke end; they do not hold a load. If pneumatic pressure drops, the rod will drift. For dead-load holding without live pressure, select the SAIL (air-released lock) or BSAI (clamp-lock) variant.
Quick checklist
At 0.5 MPa, this 63 mm bore cylinder generates 1559 N of push force and 1402 N of pull force. It operates at a standard speed range of 30-800 mm/s.
Yes, it is dimensionally interchangeable per ISO 15552 profile standards. You can drop it into existing mounts using G3/8 PT ports and standard mounting accessories, though you must verify overall length.
Genuine AirTAC parts produced by AirTAC factory.
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