Airtac SAI63 Standard Cylinder SAI63X280S
The AirTAC Airtac SAI63 Standard Cylinder SAI63X280S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 280mm 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
- Stroke280 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63X280S
The AirTAC SAI63X280-S is a double-acting ISO 15552 profile cylinder featuring a 63mm bore and a 280mm stroke. It generates 1559 N of push force at 0.5 MPa, making it well-suited for medium-duty automation tasks. The extruded aluminum barrel design omits tie-rods, providing a clean exterior that drops directly into standard ISO 15552 mounting interfaces.
This specific configuration includes a piston magnet for proximity sensing and uses a standard carbon steel piston rod. The barrel features sensor grooves on both sides, allowing easy installation of CMSE or DMSE reed switches. Port threads are PT (tapered), and the cylinder includes adjustable air cushions at both ends to decelerate the piston smoothly.
Airtac SAI63 Standard Cylinder SAI63X280S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X280S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 280 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 SAI63X280S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×280 | 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 SAI63X280S Is Used
Automated Clamping
Secures medium-weight metal or composite workpieces during CNC machining, utilizing the 1559 N push force to hold parts rigidly against fixtures.
Material Diverting
Actuates sorting gates on packaging lines, using the 280mm stroke to push products cleanly from one conveyor lane to another.
Vertical Lifting
Raises lightweight pallets or totes in compact logistics hubs, relying on the integrated magnet to trigger upper and lower limit sensors.
Is the Airtac SAI63 Standard Cylinder SAI63X280S the Right Cylinder?
Choose this 63mm bore if your application requires thrust between the 982 N provided by a 50mm cylinder and the 2513 N output of an 80mm model at 0.5 MPa. The 280mm stroke offers extended travel for pushing, lifting, or clamping tasks. Because the stroke is 280mm, be mindful of side loads; long unsupported rods are prone to bending under lateral forces, so utilizing an external guide rail or a dedicated guided cylinder will maximize rod-bearing lifespan.
This model's adjustable air cushions only decelerate the piston near the end of travel and do not function as a brake. If your machinery must hold a load vertically or resist movement when air pressure is lost or exhausted, pair this cylinder with an external pilot-operated check valve or select the SAIL variant with an air-released lock. For ISO 15552 interchangeability, match the 63mm bore, 280mm stroke, G3/8 port, and desired mounting accessory like a 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 SAI63X280S FAQ
At an operating pressure of 0.5 MPa, this 63mm 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 SAI63X280-S is dimensionally interchangeable per ISO 15552 standards. You can drop it in as a replacement for other ISO 15552 profile cylinders with a 63mm bore, 280mm stroke, G3/8 port, and matching mounting accessories.
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