Airtac SAI63 Standard Cylinder SAI63X245S
The AirTAC Airtac SAI63 Standard Cylinder SAI63X245S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 245mm 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
- Stroke245 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63X245S
The AirTAC SAI63X245-S is a double-acting ISO 15552 profile cylinder with a 63mm bore and 245mm stroke. It delivers a push force of 1559 N at 0.5 MPa, making it well-suited for mid-range automation tasks. The extruded aluminum barrel is tie-rod-less and includes a magnet for proximity sensing.
This specific configuration features a standard carbon steel piston rod and PT tapered port threads. The integrated magnet allows direct mounting of CMSE or DMSE series reed switches along the dual sensor grooves on both sides of the barrel.
Airtac SAI63 Standard Cylinder SAI63X245S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X245S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 245 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 SAI63X245S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×245 | 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 SAI63X245S Is Used
Automated Clamping
Provides reliable 1559 N clamping force at 0.5 MPa for securing medium-sized metal workpieces during machining operations.
Material Diverting
Drives diverter arms on packaging lines, utilizing the 245mm stroke to push products smoothly between conveyor lanes.
Assembly Pressing
Presses bearings or pins into housings on automated assembly lines, benefiting from the adjustable end-of-stroke cushions.
Is the Airtac SAI63 Standard Cylinder SAI63X245S the Right Cylinder?
If your application requires slightly less push force at 0.5 MPa, stepping down to the 50mm bore yields 982 N. For higher force needs, the 80mm bore provides 2513 N. Because this 245mm stroke is under the 300mm threshold, side-load bending on the rod bearing is less severe, but external guides are still recommended for heavy lateral loads.
When replacing an existing ISO 15552 cylinder, match the 63mm bore, 245mm stroke, G3/8 port, and mounting accessory type (such as FA flange or TC trunnion). The -S suffix indicates the magnet is pre-installed for sensor compatibility. Note that the standard SAI relies on adjustable air cushions to decelerate the piston; it cannot hold a load vertically if air pressure is lost. For fail-safe holding, consider the SAIL locking variant.
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 SAI63X245S FAQ
At 0.5 MPa operating pressure, the SAI63X245-S generates 1559 N of push force and 1402 N of pull force. At 0.7 MPa, the push force increases to 2182 N.
Yes, its standardized ISO 15552 mounting interface makes it dimensionally interchangeable with other ISO 15552 profile cylinders. Ensure you match the G3/8 port, 63mm bore, and 245mm stroke dimensions.
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