Airtac SAI63 Standard Cylinder SAI63X45
The AirTAC Airtac SAI63 Standard Cylinder SAI63X45 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 45mm 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
- Stroke45 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63X45
The AirTAC SAI63X45 is a double-acting ISO 15552 profile cylinder offering 1559 N of push force at 0.5 MPa. Its 45 mm stroke is ideal for short-travel clamping and ejection tasks. The extruded aluminum barrel omits tie rods, providing a clean exterior.
This configuration uses a standard carbon steel piston rod and PT tapered port threads. For high-temperature environments up to +70 C, you can specify Viton (H) seals instead of the standard TPU. The barrel features dual sensor grooves for CMSE or DMSE switches if a magnet is added later.
Airtac SAI63 Standard Cylinder SAI63X45 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X45 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 45 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 SAI63X45
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×45 | 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 SAI63X45 Is Used
Short-Stroke Clamping
Generates 1559 N at 0.5 MPa to securely hold workpieces during machining or welding operations.
Package Ejection
Provides rapid 45 mm travel to push items off a conveyor line without occupying excessive space.
Gate Diverting
Actuates small mechanism gates or diverters in light material handling systems with reliable force.
Is the Airtac SAI63 Standard Cylinder SAI63X45 the Right Cylinder?
Choose this 63 mm bore when a 50 mm bore (982 N at 0.5 MPa) lacks the necessary thrust. If your application requires even less force, consider stepping down. The 45 mm stroke keeps the rod compact, minimizing side-load bending on the rod bearing.
As a true ISO 15552 profile cylinder, it serves as a drop-in replacement for any standard ISO 15552 mounting interface unit with a 63 mm bore, 45 mm stroke, and G3/8 port. Note that the adjustable air cushions only decelerate the piston near stroke ends; they do not hold loads. If pressure drops, the rod drifts—use a SAIL variant or external check valve for position holding.
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 SAI63X45 FAQ
At 0.5 MPa, the SAI63X45 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 SAI63X45 is built to the ISO 15552 standard, making it dimensionally interchangeable with other ISO 15552 profile cylinders of the same bore and stroke.
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