Airtac SAI40 Standard Air Cylinder SAI40AX350S
The AirTAC SAI40 Standard Air Cylinder SAI40AX350S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 350mm 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
- Stroke350 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 SAI40AX350S
The AirTAC SAI40X350-S is a double-acting ISO 15552 profile cylinder featuring a 40mm bore and a 350mm stroke. It generates 628N of push force and 528N of pull force at 0.5 MPa, making it a solid choice for medium-duty handling tasks. The extruded aluminum barrel design omits tie rods, providing a clean exterior that is dimensionally interchangeable with other ISO 15552 cylinders.
This specific configuration includes a SUS420J2 stainless steel piston rod (option A) for enhanced corrosion resistance compared to standard carbon steel. The -S suffix indicates an integrated magnet, allowing direct mounting of CMSE or DMSE reed switches along the dual sensor grooves on the barrel. With a PT tapered G1/4 port and adjustable air cushions at both ends, it ensures smooth operation across its 30-800 mm/s speed range.
Airtac SAI40 Standard Air Cylinder SAI40AX350S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40AX350S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 350 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 SAI40AX350S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×350 | 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 SAI40AX350S Is Used
Material Transfer
Pushes packages or pallets along a processing line using the 628N push force and 350mm travel distance.
Component Forming
Actuates medium-duty pressing or clamping stations where the SUS420J2 stainless rod resists minor environmental moisture.
Vertical Lifting
Raises platform gates or lightweight materials; pair with an external guide to manage the 350mm stroke side loads.
Is the Airtac SAI40 Standard Air Cylinder SAI40AX350S the Right Cylinder?
Selecting this 40mm bore over the smaller 32mm variant upgrades your push force from 402N to 628N at 0.5 MPa, while stepping up to the 63mm bore yields a substantial 1559N if your application demands heavier lifting. The 350mm stroke is well within the 1200mm maximum standard stroke for this bore, but it is long enough to require careful mounting.
Because a 350mm unsupported rod is susceptible to bending under side loads, you should use external guide rails or a fully guided cylinder to protect the rod bearing. Note that the standard SAI does not hold its load if air pressure drops; for position holding without live pressure, consider the SAIL locking variant or an external rod lock. This model serves as a direct replacement for any ISO 15552 cylinder matching the 40mm bore, 350mm stroke, G1/4 port, and standard mounting accessories like FA flanges or LB foot brackets.
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 SAI40AX350S FAQ
At an operating pressure of 0.5 MPa, the SAI40X350-S generates a push force of 628N and a pull force of 528N. If you increase the pressure to 0.7 MPa, the push force rises to 879N.
Yes, the SAI40X350-S is dimensionally interchangeable per ISO 15552 standards. You can use it as a direct replacement for other ISO 15552 profile cylinders with a 40mm bore, 350mm stroke, and G1/4 port, provided you match the appropriate mounting accessory.
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