Airtac SAI63 Standard Cylinder SAI63BX280S
The AirTAC SAI63 Standard Cylinder SAI63BX280S 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ63 mm
- Stroke280 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAI63 Standard Cylinder SAI63BX280S
The AirTAC SAI63X280-S is a double-acting ISO 15552 profile cylinder with a 63mm bore and 280mm stroke. It delivers 1559N of push force at 0.5 MPa, making it a robust choice for medium-duty automation. The extruded aluminum barrel is tie-rod-less and includes sensor grooves on both sides for straightforward position feedback.
This specific configuration includes a SUS304 stainless steel rod for superior corrosion resistance and a built-in magnet (-S) compatible with CMSE and DMSE reed switches. It utilizes PT tapered port threads and adjustable air cushions at both ends to manage piston deceleration.
Airtac SAI63 Standard Cylinder SAI63BX280S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63BX280S |
|---|---|
| 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 SAI63BX280S
| 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 SAI63BX280S Is Used
Automated Forming Press
Provides 1559N of thrust at 0.5 MPa for medium-duty metal forming and stamping operations.
Pallet Diverter
Uses the 280mm stroke to push heavy pallets onto secondary conveyor lines with smooth cushioned stops.
Vertical Lift Gate
Raises and lowers loading bay gates, relying on the SUS304 rod for moisture resistance.
Is the Airtac SAI63 Standard Cylinder SAI63BX280S the Right Cylinder?
Selecting this 63mm bore over the smaller 50mm option provides a significant force jump from 982N to 1559N at 0.5 MPa without stepping up to the larger 80mm bore. The 280mm stroke is well within the 1500mm maximum standard stroke limit for this bore size.
Because the stroke is 280mm, be mindful of side-load stress on the rod bearing; an external guide or guided cylinder is recommended to prevent bending under lateral loads. For applications that must hold a load without continuous air pressure, use the SAIL (air-released lock) or BSAI (clamp-lock) variant, as standard cushions only decelerate and do not lock. To match this ISO 15552 footprint, specify the 63mm bore, 280mm stroke, PT port, and a compatible mounting accessory like an LB foot or TC trunnion.
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 SAI63BX280S FAQ
At 0.5 MPa, this cylinder provides 1559N of push force and 1402N of pull force. At 0.7 MPa, the push force increases to 2182N.
Yes, the SAI63X280-S is dimensionally interchangeable per ISO 15552. You can drop it in as a replacement by matching the 63mm bore, 280mm stroke, PT port, and mounting accessories.
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