Airtac SAI63 Standard Cylinder SAI63X800S
The AirTAC Airtac SAI63 Standard Cylinder SAI63X800S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 800mm 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
- Stroke800 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63X800S
The AirTAC SAI63X800-S is a double-acting ISO 15552 profile cylinder engineered for demanding linear motion tasks. Operating at 0.15-1.0 MPa, it generates a push force of 1559 N and a pull force of 1402 N at 0.5 MPa. This specific variant features an 800 mm stroke and includes a magnetic piston (-S) for direct compatibility with CMSE and DMSE reed switches.
Beyond the standardized bore and stroke dimensions, this model utilizes a carbon steel piston rod for high tensile strength under heavy axial loads. The extruded aluminum barrel incorporates dual sensor grooves, allowing you to mount position switches on either side for flexible machine integration. It also features adjustable air cushions at both ends, providing 36 mm of cushion travel to decelerate the moving mass smoothly.
Airtac SAI63 Standard Cylinder SAI63X800S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X800S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 800 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 SAI63X800S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×800 | 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 SAI63X800S Is Used
Material Transfer
Ideal for driving long-stroke product pushers or diverters on automated conveyor lines, utilizing the full 800 mm travel to shift items between processing stations.
Assembly Automation
Provides the robust 1559 N push force needed to press components or actuate large tooling fixtures over extended distances without requiring external hydraulics.
Pallet Handling
Well-suited for positioning pallets or heavy totes in packaging zones, where the magnetic piston allows precise end-of-stroke detection for sequencing.
Is the Airtac SAI63 Standard Cylinder SAI63X800S the Right Cylinder?
Choosing this 63 mm bore over the smaller 40 mm option is necessary when your application requires more force than the 628 N provided by the 40 mm bore at 0.5 MPa. Conversely, if your load demands exceed the 1559 N available here, stepping up to the 80 mm bore yields 2513 N of push force. For an 800 mm stroke, side loading is a critical concern; long unsupported rods are susceptible to bending and premature bearing wear. To manage this, implement an external guide rail or utilize a fully guided cylinder to absorb lateral forces and protect the piston rod.
Because this is a double-acting pneumatic actuator, it relies on continuous air pressure to hold its position. If air is exhausted or the valve is centered, the piston will drift and drop the load. For applications requiring true position holding without live pressure, consider the SAIL variant with an air-released lock or the BSAI bidirectional clamp-lock cylinder. This SAI model is dimensionally interchangeable per ISO 15552, featuring a G3/8 port, PT threaded connections, and standard mounting accessories like FA flange or TC trunnion brackets.
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 SAI63X800S FAQ
At an 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. If the pressure is increased to 0.7 MPa, the push force rises to 2182 N.
Yes, the SAI63X800-S is a true ISO 15552 profile cylinder. Its mounting dimensions and interface are standardized, making it a drop-in replacement for other ISO 15552 cylinders with a 63 mm bore and 800 mm stroke, using a G3/8 port.
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