Airtac SAI63 Standard Cylinder SAI63AX275S
The AirTAC Airtac SAI63 Standard Cylinder SAI63AX275S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 275mm 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
- Stroke275 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63AX275S
The AirTAC SAI63X275-S is a double-acting ISO 15552 profile cylinder engineered to deliver 1559 N of push force at 0.5 MPa. Its 275 mm stroke provides the extended travel needed for mid-range automation tasks. As a genuine AirTAC component, it ensures dimensional interchangeability for drop-in replacement of other ISO 15552 cylinders.
This specific configuration includes a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance compared to standard carbon steel. It is built with a -S magnet for direct compatibility with CMSE and DMSE sensor switches, which seat neatly into the dual grooves on the extruded aluminum barrel.
Airtac SAI63 Standard Cylinder SAI63AX275S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63AX275S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 275 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 SAI63AX275S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×275 | 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 SAI63AX275S Is Used
Automated Clamping
Provides 1559 N of push force at 0.5 MPa to secure heavy metal workpieces during CNC machining operations.
Package Diverting
Utilizes the 275 mm stroke to push heavy cartons cleanly across transfer lanes without requiring extended dwell times.
Material Elevation
Lifts stacked components on a production line, relying on the SUS420J2 stainless rod to resist environmental moisture.
Is the Airtac SAI63 Standard Cylinder SAI63AX275S the Right Cylinder?
Selecting this 63 mm bore over the smaller 50 mm variant jumps the push force from 982 N to 1559 N at 0.5 MPa, making it suitable for heavier payloads. If your application requires less force, stepping down to the 40 mm bore yields 628 N. Because this model features a 275 mm stroke, the unsupported rod length is significant; use external guides or a guided cylinder carriage to prevent rod-bearing bending under side loads.
This cylinder uses PT tapered port threads and a G3/8 air connection. It does not hold its position if air pressure drops; for load-holding safety, consider the SAIL (air-released lock) or BSAI (clamp-lock) variants. Mounting accessories include LB, FA, CA, and TC styles.
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 SAI63AX275S FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of push force and 1402 N of pull force. At 0.7 MPa, the push force increases to 2182 N.
Yes, the SAI63X275-S is a true ISO 15552 profile cylinder. Its standardized mounting dimensions make it a drop-in replacement for other ISO 15552 cylinders, provided you match the G3/8 port and M16x1.5 rod thread.
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