Airtac SAI63 Standard Cylinder SAI63X250
The AirTAC Airtac SAI63 Standard Cylinder SAI63X250 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 250mm 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
- Stroke250 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63X250
The AirTAC SAI63X250 is a double-acting ISO 15552 profile cylinder engineered to deliver a robust 1559 N of push force at 0.5 MPa and 2182 N at 0.7 MPa. Its 250 mm stroke provides the extended travel needed for mid-range automation tasks, while the extruded aluminum barrel design omits tie rods for a clean, modern exterior.
This specific configuration utilizes a standard carbon steel piston rod and features PT tapered thread ports sized at G3/8. Because it lacks an integrated magnet (-S), it does not directly support CMSE or DMSE sensors; if position detection is required, an -S variant would be necessary.
Airtac SAI63 Standard Cylinder SAI63X250 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X250 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 250 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 SAI63X250
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×250 | 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 SAI63X250 Is Used
Mid-Tier Pressing
Ideal for applying 1559 N of clamping or pressing force in automated assembly lines and light metalworking fixtures.
Material Diversion
The 250 mm stroke provides the extended reach needed to actuate large diverter arms or sorting gates on heavy-duty conveyor systems.
Packaging Equipment
Drives the lifting and positioning mechanisms in palletizers and case packers where consistent 63 mm bore thrust is required.
Is the Airtac SAI63 Standard Cylinder SAI63X250 the Right Cylinder?
Providing 1559 N at 0.5 MPa, this 63 mm bore unit sits comfortably between the 50 mm bore (982 N) and the 80 mm bore (2513 N) options, making it the optimal choice when a 50 mm cylinder lacks thrust or an 80 mm unit is physically too large. With a 250 mm stroke, the unsupported rod length is considerable; to prevent rod-bearing bending under side loads, always incorporate an external guide rail or utilize a dedicated guided cylinder.
As a dimensionally interchangeable ISO 15552 profile cylinder, it serves as a seamless drop-in replacement for other standard 63 mm bore actuators. It features a G3/8 PT port, adjustable air cushions at both ends (36 mm stroke), and an M16x1.5 rod thread. If your machinery requires positive load holding in the event of air pressure loss, select the SAIL variant or an external rod lock instead of this standard model.
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 SAI63X250 FAQ
At a standard 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 SAI63X250 is a true ISO 15552 profile cylinder, making its mounting interface and center-to-center dimensions fully interchangeable with other ISO 15552 compliant cylinders of the same bore size.
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