Airtac SAI63 Standard Cylinder SAI63X325S
The AirTAC Airtac SAI63 Standard Cylinder SAI63X325S 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ63 mm
- Stroke325 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63X325S
The AirTAC SAI63X325-S is a double-acting ISO 15552 profile cylinder engineered to deliver 1559 N of push force at 0.5 MPa. Its 325 mm stroke provides the extended travel needed for mid-range material handling and automated positioning tasks.
Equipped with a magnetic piston for position sensing, this model integrates seamlessly with CMSE or DMSE switches fitted into the dual sensor grooves machined into the extruded aluminum barrel. Standard carbon steel piston rod construction ensures robust durability for demanding industrial environments.
Airtac SAI63 Standard Cylinder SAI63X325S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X325S |
|---|---|
| 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.
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 SAI63X325S
| 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.
Where the Airtac SAI63 Standard Cylinder SAI63X325S Is Used
Package Diverting
Provides the extended 325 mm reach and 1559 N force required to push heavy cartons smoothly across transfer plates on high-speed packaging lines.
Component Ejection
Delivers reliable ejection force for machined metal parts from CNC fixtures, utilizing the magnetic piston to confirm part clearance via DMSE sensors.
Pallet Positioning
Indexes empty pallets into loading zones with precise 325 mm travel, absorbing end-of-stroke impact through adjustable air cushions.
Is the Airtac SAI63 Standard Cylinder SAI63X325S the Right Cylinder?
This 63 mm bore strikes a balance between the 50 mm option (982 N push at 0.5 MPa) and the larger 80 mm cylinder (2513 N push at 0.5 MPa). Because the 325 mm stroke exceeds the 300 mm threshold, side loads can induce rod-bearing bending; utilizing an external guide rail or a guided cylinder carriage is strongly recommended to prevent premature seal wear.
The adjustable air cushions at both ends decelerate the piston near stroke end but do not lock the load. If your fixture must maintain its position after a loss of air pressure, integrate the SAIL variant with an air-released lock or employ an external pilot-operated check valve. As a true ISO 15552 profile cylinder, it serves as a drop-in replacement for any standard 63 mm bore, 325 mm stroke, G3/8 PT port configuration utilizing FA, LB, or TC mountings.
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 SAI63X325S FAQ
At a 0.5 MPa operating pressure, this 63 mm bore cylinder generates 1559 N of push force and 1402 N of pull force. If pressure is increased to 0.7 MPa, the push force rises to 2182 N.
Yes. The SAI63X325-S is dimensionally interchangeable per ISO 15552. You can drop it directly into existing 63 mm bore setups matching the 325 mm stroke, G3/8 PT port, and standard TC or LB mounting dimensions.
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