Airtac SAI63 Standard Cylinder SAI63AX40S
The AirTAC Airtac SAI63 Standard Cylinder SAI63AX40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 40mm 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
- Stroke40 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63AX40S
The AirTAC SAI63X40-S is a double-acting ISO 15552 profile cylinder offering 1559 N of push force at 0.5 MPa. Its short 40 mm stroke is built for compact clamping and ejection tasks. The extruded aluminum barrel design omits tie rods, providing a clean exterior that drops directly into standard ISO 15552 mounting interfaces.
This specific configuration includes a SUS420J2 stainless steel piston rod (option A) for superior corrosion resistance in harsh production environments. It also features a built-in magnet (-S) for use with CMSE and DMSE series reed switches, utilizing the dual sensor grooves machined into both sides of the barrel for flexible mounting.
Airtac SAI63 Standard Cylinder SAI63AX40S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63AX40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 40 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 SAI63AX40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×40 | 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 SAI63AX40S Is Used
Part Ejection
Provides rapid 1559 N push force to eject finished metal components from a machining center in a single cycle.
Pallet Clamping
Secures heavy pallets during packaging operations, utilizing the short 40 mm stroke for a compact footprint.
Gate Diverter
Actuates heavy flow diverter gates on automated conveyor lines, relying on the SUS420J2 rod to resist moisture.
Is the Airtac SAI63 Standard Cylinder SAI63AX40S the Right Cylinder?
Choose this 63 mm bore when a 50 mm bore (982 N at 0.5 MPa) lacks sufficient thrust, but an 80 mm bore (2513 N) would be physically oversized. The 40 mm stroke keeps retracted length minimal, making it ideal for tight machine envelopes. Threaded ports are PT (tapered).
Because the stroke is only 40 mm, side-load stress on the rod bearing is minimal. Note that this standard cylinder relies on adjustable air cushions at both ends to decelerate the piston; it does not hold position when air pressure is removed. For dead-load holding, select the SAIL variant or an external rod lock.
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 SAI63AX40S 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 SAI63X40-S is dimensionally interchangeable per ISO 15552 profile cylinder standards. It shares the same mounting interface and PT port size as other compliant cylinders, allowing for a direct drop-in replacement.
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