Airtac SAI63 Standard Cylinder SAI63BX45
The AirTAC Airtac SAI63 Standard Cylinder SAI63BX45 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ63 mm
- Stroke45 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
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About the Airtac SAI63 Standard Cylinder SAI63BX45
The AirTAC SAI63X45 is a double-acting ISO 15552 profile cylinder engineered for compact, high-force actuation. It generates 1559 N of push force and 1402 N of pull force at 0.5 MPa, making it ideal for short-stroke clamping and pressing tasks. This 45 mm stroke variant utilizes a variable air cushion at both ends to smoothly decelerate the piston.
This specific configuration features a SUS304 stainless steel rod (material code B) for superior corrosion resistance in wet or mildly chemical environments. It uses PT tapered port threads and lacks a standard magnet, meaning it operates without electronic position sensing unless externally specified. The extruded aluminum barrel includes dual sensor grooves, allowing for future sensor upgrades if needed.
Airtac SAI63 Standard Cylinder SAI63BX45 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63BX45 |
|---|---|
| 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 SAI63BX45
| 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 SAI63BX45 Is Used
Short-Stroke Pressing
Delivers 1559 N of thrust at 0.5 MPa for seating bearings or stamping small components within a 45 mm travel distance.
Product Diverting
Provides robust actuation for heavy-duty diverter arms on packaging lines where a compact stroke is required.
Pallet Clamping
Secures heavy pallets or workpieces securely in place during machining or transfer operations using high pull force.
Is the Airtac SAI63 Standard Cylinder SAI63BX45 the Right Cylinder?
Select this 63 mm bore when a 50 mm bore (982 N push at 0.5 MPa) provides insufficient power, but an 80 mm bore (2513 N) is physically too large for your fixture. The 45 mm stroke is optimal for applications requiring brief, powerful movements. Because this standard cylinder does not hold its position when air pressure is removed, use the SAIL variant with an air-released lock if your application requires fail-safe load holding.
As a dimensionally interchangeable ISO 15552 cylinder, this model serves as a direct replacement for other standard profile cylinders with matching 63 mm bores, 45 mm strokes, G3/8 ports, and standard mounting accessories like FA flanges or TC trunnions.
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 SAI63BX45 FAQ
At an operating pressure of 0.5 MPa, this 63 mm bore cylinder generates 1559 N of push force and 1402 N of pull force. At the maximum 1.0 MPa pressure, the theoretical maximum force is 318 kgf.
Yes, the SAI63X45 is a true ISO 15552 profile cylinder. It is dimensionally interchangeable with other ISO 15552 cylinders of the same bore and stroke, serving as a direct replacement for standard mounting interfaces.
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