Airtac SAI40 Standard Air Cylinder SAI40AX70S
The AirTAC SAI40 Standard Air Cylinder SAI40AX70S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 70mm 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
- Stroke70 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 SAI40AX70S
The AirTAC SAI40X70-S is a double-acting ISO 15552 profile cylinder offering a 40mm bore and 70mm stroke. It generates 628N of push force at 0.5 MPa, making it well-suited for mid-range actuation tasks. This variant includes a built-in magnet for direct compatibility with CMSE and DMSE sensor switches.
This model features a SUS420J2 stainless steel piston rod, providing excellent corrosion resistance for humid or lightly chemically washed environments. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. Fluid must be filtered air, and the standard PT tapered port thread ensures a tight, reliable pneumatic connection.
Airtac SAI40 Standard Air Cylinder SAI40AX70S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40AX70S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 70 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 SAI40AX70S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×70 | 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 SAI40AX70S Is Used
Component Clamping
Ideal for holding machined parts during milling or drilling, utilizing its 628N push force to secure workpieces firmly against fixtures.
Package Diverting
The 70mm stroke provides rapid actuation for routing small to medium packages on sorting lines, with adjustable cushions absorbing end-of-stroke impact.
Gate Control
Suitable for operating small pneumatic gates and material flow valves, where the SUS420J2 stainless rod resists environmental moisture.
Is the Airtac SAI40 Standard Air Cylinder SAI40AX70S the Right Cylinder?
Select this 40mm bore cylinder when an application requires 628N of push force at 0.5 MPa, bridging the gap between the 32mm bore (402N) and the 50mm bore (982N). The 70mm stroke is optimal for short-travel pick-and-place movements where stopping impact is managed by the adjustable air cushions at both ends.
Because it is a double-acting ISO 15552 profile cylinder, it serves as a direct replacement for other ISO 15552 cylinders of the same bore and stroke. Note that this standard SAI variant does not hold position if air pressure is lost; for suspended loads requiring safety locking, consider the SAIL or BSAI variants. Ensure your setup uses PT porting and appropriate FA/FB flange or LB foot mounts.
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 SAI40AX70S FAQ
At an operating pressure of 0.5 MPa, the SAI40X70-S generates a push force of 628N and a pull force of 528N. At 0.7 MPa, the push force increases to 879N.
Yes, the -S suffix indicates a built-in magnet, allowing direct mounting of CMSE or DMSE sensor switches in the dual side grooves. The pneumatic port thread is PT (tapered) sized G1/4.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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