Airtac SAI63 Standard Cylinder SAI63AX45S
The AirTAC Airtac SAI63 Standard Cylinder SAI63AX45S 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 SAI63AX45S
The AirTAC SAI63X45-S is a double-acting ISO 15552 profile cylinder featuring a 63mm bore and 45mm stroke. Delivering a push force of 1559 N at 0.5 MPa, this compact stroke is ideal for short clamping and ejection tasks. The extruded aluminum barrel design omits tie rods, providing a clean exterior.
Configured with an internal magnet (-S), this unit supports CMSE and DMSE reed switches via sensor grooves on both sides of the barrel. It features a SUS420J2 stainless steel piston rod for enhanced corrosion resistance and utilizes PT tapered port threads for a secure pneumatic connection.
Airtac SAI63 Standard Cylinder SAI63AX45S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63AX45S |
|---|---|
| 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 SAI63AX45S
| 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 SAI63AX45S Is Used
Short Clamping
Ideal for holding parts securely in machining or welding fixtures using its 1559 N push force over a brief 45mm distance.
Package Ejector
Provides a rapid, short stroke to push lightweight cartons or products off a conveyor line efficiently.
Gate Diverter
Actuates short-stroke diverter arms on packaging lines to route products into alternative downstream lanes.
Is the Airtac SAI63 Standard Cylinder SAI63AX45S the Right Cylinder?
If your application requires less force, stepping down to the 50mm bore yields 982 N at 0.5 MPa, while moving up to the 80mm bore provides 2513 N. For this 45mm stroke, side load is minimal, but always guide the load externally if rigid alignment is critical. To mount this cylinder, use standard ISO 15552 accessories like FA flanges or LB foot brackets. Since the standard SAI lacks a holding mechanism, select the SAIL variant if the load must be prevented from drifting upon air pressure loss.
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 SAI63AX45S FAQ
At 0.5 MPa, the push force is 1559 N and the pull force is 1402 N. At 0.7 MPa, the push force increases to 2182 N.
Yes, the SAI63X45-S is dimensionally interchangeable with other ISO 15552 profile cylinders, serving as a drop-in replacement for matching 63mm bore units.
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