Airtac SAI63 Standard Cylinder SAI63X450S
The AirTAC Airtac SAI63 Standard Cylinder SAI63X450S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 450mm 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
- Stroke450 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63X450S
The AirTAC SAI63X450-S is a double-acting ISO 15552 profile cylinder featuring a 63mm bore and 450mm stroke. It generates 1559 N of push force and 1402 N of pull force at 0.5 MPa, making it a robust choice for medium-duty industrial actuation. The extruded aluminum barrel design omits tie-rods, providing a clean exterior that drops directly into existing ISO 15552 mounting interfaces.
Equipped with a magnet for position sensing, this unit works seamlessly with CMSE and DMSE reed switches fitted into the dual sensor grooves on the barrel. The standard piston rod is manufactured from carbon steel, while the seals utilize standard TPU material. For environments requiring higher heat resistance, Viton (H) seals and SUS304 stainless steel rods are available as alternate options.
Airtac SAI63 Standard Cylinder SAI63X450S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X450S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 450 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 SAI63X450S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×450 | 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 SAI63X450S Is Used
Material Diversion
Actuates heavy-duty diverter arms on packaging lines where 1559 N of push force at 0.5 MPa is required to redirect products reliably.
Press Ejection
Provides the extended 450mm reach needed to eject molded parts from large machine beds, utilizing the integrated magnet for end-of-stroke confirmation.
Pallet Handling
Drives lifting and positioning mechanisms in automated palletizers, taking advantage of the ISO 15552 mounting interface for rigid structural integration.
Is the Airtac SAI63 Standard Cylinder SAI63X450S the Right Cylinder?
This 63mm bore offers a significant force upgrade over the 50mm version, which provides 982 N of push force at 0.5 MPa, making it necessary when your load demands exceed the smaller bore's capacity. At 450mm of stroke, the unsupported rod length is substantial; applying lateral loads directly to the piston rod can cause severe rod-bearing bending and premature seal failure. To manage this, implement an external guide rail or select a guided cylinder assembly to absorb any side loads.
If the application requires the load to be held in place during a loss of air pressure or when the control valve is centered, the standard adjustable air cushions at both ends will not act as a lock. In such scenarios, specify the SAIL variant with an air-released lock or utilize an external pilot-operated check valve. Replacement is straightforward: match the 63mm bore, 450mm stroke, G3/8 port, and mounting accessories like the TC trunnion or FA flange.
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 SAI63X450S FAQ
At 0.5 MPa operating pressure, the SAI63X450-S delivers 1559 N of push force and 1402 N of pull force. At 0.7 MPa, the push force increases to 2182 N.
Yes, the SAI63X450-S is dimensionally interchangeable per ISO 15552. It shares the exact same mounting interface and profile barrel dimensions as other standard ISO 15552 cylinders, allowing for seamless brand replacement.
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