Airtac SAI63 Standard Cylinder SAI63X350
The AirTAC Airtac SAI63 Standard Cylinder SAI63X350 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 350mm 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
- Stroke350 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63X350
The AirTAC SAI63X350 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. With a 350 mm stroke, it provides the extended travel needed for material handling and automated clamping tasks. The extruded aluminum barrel design integrates sensor grooves on both sides for straightforward position feedback.
This model is configured with standard carbon steel piston rod material for high structural integrity and utilizes PT tapered port threads for secure pneumatic connections. As a genuine AirTAC component, it ensures reliable operation across its 30-800 mm/s speed range, while adjustable air cushions at both ends protect against end-of-stroke impact.
Airtac SAI63 Standard Cylinder SAI63X350 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X350 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 350 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 SAI63X350
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×350 | 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 SAI63X350 Is Used
Extended Reach Diverting
Pushes packages across conveyor lanes over a 350 mm travel distance, utilizing the 1559 N thrust to overcome guide friction on heavier cartons.
Long-Stroke Part Ejection
Ejects molded or machined components from deep fixtures, relying on adjustable air cushions to decelerate the rod smoothly at full extension.
Pallet Stopper Gate
Actuates as a raised stop gate for pallets on a transfer line, providing enough force to halt movement while waiting for the next processing station.
Is the Airtac SAI63 Standard Cylinder SAI63X350 the Right Cylinder?
Selecting this 63 mm bore offers a balanced output for mid-range tasks; stepping down to a 50 mm bore reduces the push force to 982 N at 0.5 MPa, while stepping up to an 80 mm bore increases it to 2513 N. Because this model features a 350 mm stroke, it is critical to manage side load to prevent rod-bearing bending; utilizing an external guide rail or a dedicated guided cylinder will preserve internal seals and ensure long service life.
This unit is dimensionally interchangeable per ISO 15552, making it a direct drop-in replacement for other standard profile cylinders with the same 63 mm bore, 350 mm stroke, G3/8 port, and compatible mounting accessories like FA flanges or TC trunnions. Note that a plain SAI cylinder relies on continuous air pressure to hold a load; if your application requires position holding upon pressure loss, consider the SAIL locking variant or an external pilot-operated check valve.
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 SAI63X350 FAQ
At a standard operating pressure of 0.5 MPa, the SAI63X350 generates 1559 N of push force and 1402 N of pull force. At 0.7 MPa, the push force increases to 2182 N.
Yes, the SAI63X350 is built to the ISO 15552 dimensional standard, making it interchangeable with other ISO 15552 profile cylinders that share the same 63 mm bore, 350 mm stroke, and G3/8 port size.
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