Airtac SAI63 Standard Cylinder SAI63AX270
The AirTAC Airtac SAI63 Standard Cylinder SAI63AX270 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 270mm 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
- Stroke270 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63AX270
The AirTAC SAI63X270 is a double-acting ISO 15552 profile cylinder featuring a 63mm bore and a 270mm stroke. It generates a push force of 1559 N and a pull force of 1402 N at 0.5 MPa, making it well-suited for medium-duty handling tasks. The extruded aluminum barrel design omits tie rods, providing a clean exterior that simplifies the mounting of proximity switches.
This specific configuration incorporates a SUS420J2 stainless steel piston rod for enhanced corrosion resistance in humid environments. It uses PT tapered port threads and lacks a magnet. For operations requiring end-position locking without air pressure, the SAIL variant is recommended instead.
Airtac SAI63 Standard Cylinder SAI63AX270 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63AX270 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 270 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 SAI63AX270
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×270 | 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 SAI63AX270 Is Used
Part Ejection
Provides the 1559 N push force needed to eject finished metal components from machining centers.
Diverter Gate
Actuates heavy routing gates on packaging lines where a 270mm stroke is required to clear the belt.
Pallet Handling
Lifts and positions wooden pallets in automated storage systems using its 1402 N pull force.
Is the Airtac SAI63 Standard Cylinder SAI63AX270 the Right Cylinder?
Select this 63mm bore model when a 50mm bore (982 N push at 0.5 MPa) lacks the necessary thrust, but an 80mm bore (2513 N push at 0.5 MPa) would be physically oversized. The 270mm stroke provides ample travel for part ejection or gate manipulation. Because the stroke exceeds 300mm is nearly reached, designers should evaluate side loads; using an external guide mechanism prevents rod-bearing bending and premature seal wear.
This cylinder serves as a drop-in replacement for other ISO 15552 profile cylinders by matching the 63mm bore, 270mm stroke, G3/8 port, and standard mounting accessories. Remember that the adjustable air cushions only decelerate the piston near stroke ends; they do not hold a load if air pressure is lost. For position holding, consider the BSAI clamp-lock series.
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 SAI63AX270 FAQ
At an operating pressure of 0.5 MPa, the SAI63X270 generates 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 SAI63X270 is dimensionally interchangeable per ISO 15552. You can replace other ISO 15552 profile cylinders by matching the 63mm bore, 270mm stroke, and G3/8 port size.
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