Airtac SAI40 Standard Air Cylinder SAI40AX240S
The AirTAC SAI40 Standard Air Cylinder SAI40AX240S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 240mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ40 mm
- Stroke240 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 SAI40AX240S
The AirTAC SAI40X240-S is a double-acting ISO 15552 profile cylinder engineered for rigorous automation tasks. Delivering 628N of push force at 0.5 MPa, this 40mm bore unit utilizes a 240mm stroke to execute intermediate linear movements. The extruded aluminum barrel design omits tie-rods, providing a clean exterior that simplifies mounting and maintenance.
This specific configuration features a SUS420J2 stainless steel piston rod (option A) for superior corrosion resistance in humid environments. Equipped with a magnet (-S), the barrel includes dual-side sensor grooves ready for CMSE or DMSE reed switches. Fluid ports utilize a PT tapered thread, and adjustable air cushions at both ends ensure smooth deceleration across its 30-800 mm/s speed range.
Airtac SAI40 Standard Air Cylinder SAI40AX240S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40AX240S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 240 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 SAI40AX240S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×240 | 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 SAI40AX240S Is Used
Parts Ejection
Provides reliable 628N push force to eject machined components from fixtures on automated production lines.
Package Diverting
Actuates diverter arms on packaging conveyors, utilizing the 240mm stroke to route boxes efficiently.
Material Handling
Drives lifting and pushing mechanisms in assembly stations where mid-range force and corrosion resistance are required.
Is the Airtac SAI40 Standard Air Cylinder SAI40AX240S the Right Cylinder?
Select this 40mm bore when an application demands more thrust than the 32mm variant (402N at 0.5 MPa) but needs a smaller footprint than the 50mm option (982N at 0.5 MPa). The 240mm stroke is ideal for parts ejection or mid-range positioning. Because this stroke exceeds 300mm is false here, standard bearing loads apply, but always verify side-load limits to prevent premature rod seal wear.
For interchangeability, this cylinder matches the ISO 15552 mounting interface, making it a direct replacement for other standard profile cylinders. It uses a G1/4 port, an M12x1.25 rod thread, and pairs with FA/FB flanges or LB foot mounts. If your machinery requires position holding without constant air pressure, the standard SAI will drift; instead, specify an SAIL pneumatic lock variant or integrate 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 SAI40 Standard Air Cylinder SAI40AX240S FAQ
At 0.5 MPa operating pressure, this 40mm bore cylinder provides 628N of push force and 528N of pull force. At 0.7 MPa, the push force increases to 879N.
No, a standard double-acting SAI cylinder will drift or drop if air pressure is lost or the valve is centered. The adjustable air cushion only decelerates the piston near the stroke end. For secure load holding, use an SAIL lock variant or an external rod lock.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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