Airtac SAI40 Standard Air Cylinder SAI40X280
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X280 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 280mm 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
- Stroke280 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 SAI40X280
The AirTAC SAI40X280 is a double-acting ISO 15552 profile cylinder featuring a 40mm bore and 280mm stroke. It generates 628 N of push force and 528 N of pull force at 0.5 MPa, making it a robust choice for medium-duty automation. This model utilizes a standard carbon steel piston rod and PT tapered port threads for reliable pneumatic connections.
Because this cylinder lacks an integrated magnet, it does not support reed or solid-state sensor feedback directly out of the box. For operations requiring end-of-stroke signaling, specifying the -S magnet option alongside CMSE or DMSE switches is necessary.
Airtac SAI40 Standard Air Cylinder SAI40X280 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40X280 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 280 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 SAI40X280
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×280 | 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 SAI40X280 Is Used
Package Diverting
Provides the 879N force at 0.7MPa needed to actuate diverter arms on high-speed packaging conveyors.
Small Press Ejection
Delivers consistent 628N push at 0.5MPa to eject molded parts from light machining and press stations.
Pallet Stop Gate
Offers a 280mm stroke to raise and lower manual pallet stop gates at the end of assembly rollers.
Is the Airtac SAI40 Standard Air Cylinder SAI40X280 the Right Cylinder?
Choose this 40mm bore when an SAI32 unit lacks sufficient thrust (offering only 563 N at 0.7 MPa compared to this bore's 879 N). At a 280mm stroke, the unsupported piston rod is susceptible to bending under side loads. Implementing an external guide rail or utilizing a guided cylinder prevents premature rod-bearing wear and ensures smooth travel.
As a standard double-acting actuator, this cylinder relies on adjustable air cushions at both ends to decelerate the piston. It will not maintain a load if air pressure is lost; for fail-safe holding, consider the SAIL pneumatic lock or BSAI clamp-lock variant. It serves as a dimensionally interchangeable drop-in replacement for any ISO 15552 cylinder matching its 40mm bore, 280mm stroke, and G1/4 port.
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 SAI40X280 FAQ
At an operating pressure of 0.7 MPa, this 40mm bore cylinder generates 879 N of push force and 740 N of pull force.
Yes. The SAI40X280 is an ISO 15552 profile cylinder, making its mounting interface dimensionally interchangeable with other ISO 15552 cylinders of the same bore and stroke.
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.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAI40 Standard Air Cylinder SAI40X280
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.