Airtac SAI63 Standard Cylinder SAI63X270S
The AirTAC Airtac SAI63 Standard Cylinder SAI63X270S 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 SAI63X270S
The AirTAC SAI63X270-S is a double-acting ISO 15552 profile cylinder engineered to deliver 1559 N of push force at 0.5 MPa. Its extruded aluminum barrel omits tie-rods, providing a clean profile that drops directly into standardized ISO 15552 mounting interfaces. The 270 mm stroke is well-suited for mid-range linear actuation tasks requiring substantial reach.
Equipped from the factory with a magnetic piston (-S), this unit supports position sensing via CMSE or DMSE switches fitted into the dual sensor grooves machined into both sides of the barrel. The standard carbon steel piston rod offers durable service in typical industrial environments, while adjustable air cushions at both ends absorb impact energy at the stroke extremes.
Airtac SAI63 Standard Cylinder SAI63X270S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X270S |
|---|---|
| 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 SAI63X270S
| 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 SAI63X270S Is Used
Component Clamping
Provides 1559 N of secure clamping force at 0.5 MPa for holding heavy machined parts during milling or drilling operations.
Package Diverting
Utilizes the 270 mm stroke to push heavy cartons smoothly across sorting lanes without requiring secondary extensions.
Material Handling
Drives lifting arms on assembly lines where the magnetic piston allows automated CMSE sensors to confirm mid-stroke positions.
Is the Airtac SAI63 Standard Cylinder SAI63X270S the Right Cylinder?
Selecting this 63 mm bore makes sense when a 50 mm bore falls short—yielding 982 N at 0.5 MPa—or when you want to avoid the bulk and 2513 N output of an 80 mm unit. Because the 270 mm stroke exceeds 300 mm, it sits just below the threshold where severe side-load bending typically mandates external guides, though keeping the load perfectly axial remains critical for rod bearing longevity.
For ISO 15552 replacement projects, verify the 270 mm stroke, G3/8 port, and M16x1.5 rod thread. If your machinery must hold a load vertically without constant air pressure, note that the standard adjustable cushion only decelerates the piston and does not lock it; you must specify the SAIL or BSAI variant for true pneumatic locking.
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 SAI63X270S FAQ
At an operating pressure of 0.5 MPa, this 63 mm bore cylinder generates 1559 N of push force and 1402 N of pull force.
Yes, the SAI63X270-S is dimensionally interchangeable per ISO 15552, meaning it matches the standardized mounting footprint of equivalent profile cylinders from other manufacturers.
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