Airtac SAI63 Standard Cylinder SAI63X40S
The AirTAC Airtac SAI63 Standard Cylinder SAI63X40S 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 SAI63X40S
The AirTAC SAI63X40-S is a double-acting ISO 15552 profile cylinder featuring a 63mm bore and 40mm stroke. It provides a robust 1559N push force and 1402N pull force at 0.5 MPa, making it well-suited for short, high-impact clamping and pressing tasks. The extruded aluminum barrel omits tie-rods for a clean exterior.
This variant includes a standard magnet for position sensing via CMSE or DMSE switches, which seat neatly into the dual sensor grooves along the barrel. The piston rod is constructed from carbon steel for high structural durability, and the PT tapered port threads guarantee a reliable, leak-free pneumatic connection.
Airtac SAI63 Standard Cylinder SAI63X40S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X40S |
|---|---|
| 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 SAI63X40S
| 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 SAI63X40S Is Used
Short-Stroke Pressing
Ideal for applying 1559N of clamping force in compact assembly jigs where a brief 40mm stroke is required to seat bearings or pins.
Package Diverting
Provides rapid actuation for diverting medium-weight packages on a packaging line, utilizing the integrated magnet for end-of-stroke confirmation.
Material Forming
Delivers consistent punch force for light-duty metal bending or plastic forming operations within confined machinery footprints.
Is the Airtac SAI63 Standard Cylinder SAI63X40S the Right Cylinder?
Choose this 63mm bore when a 50mm bore (982N push at 0.5 MPa) cannot supply enough force, but you want to avoid stepping up to an 80mm bore (2513N push) to save space and air consumption. The 40mm stroke is optimal for rapid, short linear movements. To mount this cylinder, utilize the ISO 15552 standard interfaces like FA flanges or TC trunnions. Because the stroke is short, side-load stress on the rod bearing is minimal. Note that this standard cylinder relies on air pressure to move; it will not hold a load if air is lost. For secure holding without live pressure, consider the SAIL or BSAI variants.
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 SAI63X40S FAQ
At 0.5 MPa, the SAI63X40-S generates a push force of 1559N and a pull force of 1402N. At the maximum operating pressure of 1.0 MPa, the theoretical maximum force is 318 kgf.
Yes, it is built to the ISO 15552 standard, meaning its mounting dimensions and port sizes (G3/8) are fully interchangeable with other ISO 15552 profile cylinders.
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