Airtac SAI63 Standard Cylinder SAI63AX45
The AirTAC Airtac SAI63 Standard Cylinder SAI63AX45 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 SAI63AX45
The AirTAC SAI63X45 is a double-acting ISO 15552 profile cylinder engineered for compact, high-force actuation. Delivering a push force of 1559 N at 0.5 MPa, this 63 mm bore unit utilizes a short 45 mm stroke to execute rapid, localized movements within confined machinery spaces.
Built to exacting international standards, it features a robust SUS420J2 stainless steel piston rod (material code A) for superior corrosion resistance in humid or mildly chemically exposed environments. The extruded aluminum barrel incorporates dual sensor grooves, allowing for straightforward CMSE or DMSE switch integration when position feedback is required.
Airtac SAI63 Standard Cylinder SAI63AX45 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63AX45 |
|---|---|
| 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 SAI63AX45
| 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 SAI63AX45 Is Used
Short-Stroke Clamping
Ideal for securing heavy metal workpieces during machining operations, utilizing its 1559 N push force to hold components rigidly in place.
Product Ejection
Executes rapid 45 mm ejection strokes at the end of assembly lines, efficiently pushing finished goods off conveyor belts without taking up excessive footprint.
Press Insertion
Provides the necessary axial force to press small bearings or pins into housings on automated manufacturing cells.
Is the Airtac SAI63 Standard Cylinder SAI63AX45 the Right Cylinder?
Select this 63 mm bore actuator when a 50 mm bore (providing 982 N push at 0.5 MPa) lacks sufficient thrust, but you want to avoid the bulk of an 80 mm bore (2513 N at 0.5 MPa). The 45 mm stroke is optimal for short clamping or ejecting duties. Because the stroke is under 300 mm, rod-bearing bending is minimal, making it highly capable of handling direct axial loads without external guides.
As a standard double-acting cylinder, it relies on continuous air pressure to maintain its position. If your application requires the piston to resist drifting when air is exhausted, consider the SAIL variant with an air-released lock or the BSAI clamp-lock version. To ensure seamless ISO 15552 interchangeability, match the PT G3/8 port, M16x1.5 rod thread, and your preferred mounting accessory like an LB foot or TC trunnion.
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 SAI63AX45 FAQ
At a standard operating pressure of 0.5 MPa, this 63 mm bore cylinder provides a push force of 1559 N and a pull force of 1402 N. At 0.7 MPa, the push force increases to 2182 N.
Yes, the SAI63X45 is dimensionally interchangeable per ISO 15552. You can use it as a drop-in replacement for other ISO 15552 profile cylinders with a 63 mm bore, 45 mm stroke, G3/8 port, and matching mounting dimensions.
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