Airtac SAI40 Standard Air Cylinder SAI40AX270S
The AirTAC SAI40 Standard Air Cylinder SAI40AX270S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 270mm 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
- Stroke270 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 SAI40AX270S
The AirTAC SAI40X270-S is a double-acting ISO 15552 profile cylinder engineered to deliver 628 N of push force at 0.5 MPa. Featuring a 40 mm bore and 270 mm stroke, this unit bridges the gap between compact assemblies and mid-range automation tasks. The integrated magnet enables precise position detection using CMSE or DMSE switches along the dual sensor grooves.
Built for demanding environments, the piston rod utilizes SUS420J2 stainless steel (material code A) for enhanced corrosion resistance compared to standard carbon steel. The fluid porting uses PT tapered threads, and the adjustable air cushions at both ends ensure smooth deceleration of moving loads.
Airtac SAI40 Standard Air Cylinder SAI40AX270S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40AX270S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 270 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 SAI40AX270S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×270 | 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 SAI40AX270S Is Used
Package Diversion
Actuates routing gates on packaging lines where 628 N of push force easily redirects medium-weight cartons without bounce.
Clamping Fixtures
Secures aluminum or composite workpieces during CNC machining, utilizing the SUS420J2 rod to resist coolant corrosion.
Vertical Lifting
Raises lightweight totes in automated storage systems, relying on the magnetic piston for precise upper and lower limit feedback.
Is the Airtac SAI40 Standard Air Cylinder SAI40AX270S the Right Cylinder?
Select this 40 mm bore when an application requires more power than a 32 mm cylinder (402 N at 0.5 MPa) but lacks the physical space for a 50 mm unit (982 N at 0.5 MPa). Because the 270 mm stroke exceeds 300 mm is approaching the threshold where side loads cause rod-bearing bending, ensure your payload is rigidly guided externally to prevent premature seal wear.
As a dimensionally interchangeable ISO 15552 cylinder, this model serves as a direct replacement matching the 40 mm bore, 270 mm stroke, G1/4 port, and standard mounting accessories like FA flanges or LB foot brackets. Note that standard SAI cylinders drift when air pressure is lost; use a SAIL variant if the system requires pneumatic locking to hold a load safely.
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 SAI40AX270S FAQ
At 0.5 MPa operating pressure, this 40 mm bore cylinder provides 628 N of push force and 528 N of pull force. At 0.7 MPa, the push force increases to 879 N.
Yes. The SAI40X270-S is a true ISO 15552 profile cylinder, making it dimensionally interchangeable with other ISO 15552 cylinders sharing the 40 mm bore, 270 mm stroke, and G1/4 port specifications.
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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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