Airtac SAI63 Standard Cylinder SAI63X280
The AirTAC Airtac SAI63 Standard Cylinder SAI63X280 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 SAI63X280
The AirTAC SAI63X280 is a double-acting ISO 15552 profile cylinder engineered to deliver 1559 N of push force at 0.5 MPa and 1402 N of pull force. With a 280 mm stroke, it fits perfectly into mid-range automation sequences requiring substantial linear motion. The extruded aluminum barrel eliminates tie-rods, presenting a clean exterior that speeds up machine assembly.
This specific configuration utilizes a standard carbon steel piston rod and PT (tapered) port threads. For environments requiring position feedback, the barrel features dual sensor grooves compatible with CMSE or DMSE switches, provided the -S magnet option is specified at ordering. If your application involves higher thermal stresses, alternative seal compounds like Viton (H) are available to replace the standard TPU.
Airtac SAI63 Standard Cylinder SAI63X280 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X280 |
|---|---|
| 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 SAI63X280
| 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 SAI63X280 Is Used
Package Sorting Diverter
Provides the 1559 N push force needed to reliably divert heavy cartons on a high-speed sorting conveyor belt.
Clamping Fixture
Secures aluminum extrusions during CNC machining operations, utilizing the 280 mm stroke to accommodate varying part widths.
Pallet Lift Station
Lifts empty pallets into position within an automated assembly line, taking advantage of the G3/8 port for rapid actuation.
Is the Airtac SAI63 Standard Cylinder SAI63X280 the Right Cylinder?
Selecting this 63 mm bore makes sense when the 50 mm bore class (offering 982 N push at 0.5 MPa) is insufficient for your load, yet the larger 80 mm bore (2513 N) would be physically oversized and consume too much air. The 280 mm stroke provides ample travel for indexing and lifting tasks.
Because the stroke is 280 mm, the unsupported rod length is significant; always minimize side loads to prevent rod-bearing bending, or utilize an external guide rail. Note that the adjustable air cushions at both ends only decelerate the piston near the end of travel and do not hold a load if air pressure drops. For dead-load holding without live pressure, consider the SAIL variant with an air-released lock or the BSAI clamp-lock cylinder. This unit is dimensionally interchangeable per ISO 15552, matching standard mounting footprints using accessories like FA flanges or TC trunnions.
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 SAI63X280 FAQ
At 0.5 MPa operating pressure, the SAI63X280 generates 1559 N of push force and 1402 N of pull force. If pressure is increased to 0.7 MPa, the push force rises to 2182 N.
Yes, the SAI63X280 is dimensionally interchangeable with standard ISO 15552 profile cylinders. It shares standard mounting dimensions, allowing it to drop into existing setups using standard FA, FB, or TC mounts.
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