Airtac SAI40 Standard Air Cylinder SAI40X5S
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X5S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 5mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ40 mm
- Stroke5 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAI40 Standard Air Cylinder SAI40X5S
The AirTAC SAI40X5-S is a double-acting ISO 15552 profile cylinder engineered for ultra-short travel. Delivering a push force of 628 N at 0.5 MPa, this 40 mm bore unit is designed for high-cycle clamping and ejection tasks. Its extruded aluminum barrel omits tie rods, presenting a clean exterior that drops directly into standardized ISO 15552 mounting interfaces.
This specific configuration includes a factory-installed magnet for position sensing, allowing seamless integration with CMSE or DMSE reed switches along the dual sensor grooves. It features a standard carbon steel piston rod and PT tapered port threads, ensuring robust performance for demanding industrial environments.
Airtac SAI40 Standard Air Cylinder SAI40X5S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40X5S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 5 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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, 30 mm |
| Max stroke | Up to 1200 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAI40 Standard Air Cylinder SAI40X5S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×5 | 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 SAI40 Standard Air Cylinder SAI40X5S Is Used
Short-Stroke Clamping
Ideal for holding thin workpieces in machining or welding fixtures where only a few millimeters of travel are needed to secure the part.
Part Ejection
Provides a rapid, short burst of force to eject small stamped or molded components from a conveyor line before the next cycle.
Valve Actuation
Used to mechanically trigger or override pneumatic process valves in tight panel spaces where full cylinder extension is impossible.
Is the Airtac SAI40 Standard Air Cylinder SAI40X5S the Right Cylinder?
Selecting this 5 mm stroke is optimal when absolute minimum extension is required, such as locking a mechanism or ejecting a small part. If your application requires slightly more travel, stepping up to the 50 mm bore SAI50X5-S yields 982 N of push force at 0.5 MPa. Because the stroke is extremely short, side-load stress on the rod bearing is negligible compared to longer units.
For operations that must maintain position during a complete loss of air pressure, a standard SAI cylinder will drift and drop its load. In those safety-critical scenarios, specify the SAIL variant with an air-released lock, or integrate an external pilot-operated check valve. To match this ISO 15552 footprint, specify the 40 mm bore, 5 mm stroke, PT port thread, and the -S magnet option.
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 SAI40 Standard Air Cylinder SAI40X5S FAQ
At 0.5 MPa operating pressure, this 40 mm bore cylinder provides a push force of 628 N and a pull force of 528 N. At the maximum 1.0 MPa pressure, it can generate up to 128 kgf.
Yes, the SAI40X5-S is dimensionally interchangeable per ISO 15552. You can use it as a drop-in replacement for other ISO 15552 profile cylinders, provided you match the 40 mm bore, 5 mm stroke, and PT port configuration.
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