Airtac SAI40 Standard Air Cylinder SAI40BX260
The AirTAC SAI40 Standard Air Cylinder SAI40BX260 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 260mm 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
- Stroke260 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 SAI40BX260
The AirTAC SAI40X260 is a double-acting ISO 15552 profile cylinder engineered to deliver 628 N of push force at 0.5 MPa and 879 N at 0.7 MPa. Its 260 mm stroke provides the extended travel needed for mid-range material handling and packaging tasks. As a genuine AirTAC component, it ensures dimensionally interchangeable mounting per ISO 15552 standards.
This specific configuration features a SUS304 stainless steel piston rod (material code B) for superior corrosion resistance in humid or washdown environments. It utilizes PT tapered port threads (G1/4) and does not include a magnet for sensor tracking. The extruded aluminum barrel incorporates dual sensor grooves, allowing for easy integration of CMSE or DMSE switches if position feedback is added later.
Airtac SAI40 Standard Air Cylinder SAI40BX260 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40BX260 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 260 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 SAI40BX260
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×260 | 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 SAI40BX260 Is Used
Package Sorting Diverter
Provides the 879 N push force at 0.7 MPa needed to reliably divert medium-weight parcels on a 260 mm stroke conveyor line.
Clamping Fixture
Secures aluminum extrusions during machining operations, utilizing the SUS304 rod to resist coolant moisture and corrosion.
Gate Actuation
Controls access gates on automated assembly lines, offering durable double-acting performance with adjustable air cushions at both ends.
Is the Airtac SAI40 Standard Air Cylinder SAI40BX260 the Right Cylinder?
Selecting this 40 mm bore is ideal when a 32 mm bore (offering 563 N at 0.7 MPa) lacks the necessary thrust, but a 50 mm bore (1374 N at 0.7 MPa) would be physically oversized. The 260 mm stroke requires careful attention to mechanical stability; for applications exceeding 300 mm, an external guide or a dedicated guided cylinder is recommended to prevent rod-bearing bending under side loads.
Because this is a standard double-acting cylinder, it does not hold its position if air pressure is lost or exhausted. If your application requires static load holding upon pressure loss, consider the SAIL variant with an air-released lock or the BSAI bidirectional clamp-lock series. To match this exact footprint, specify a 40 mm bore, 260 mm stroke, PT G1/4 port, and your preferred mounting accessory such as an LB foot or FA flange.
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 SAI40BX260 FAQ
The SAI40X260 generates a push force of 628 N at 0.5 MPa and 879 N at 0.7 MPa. The pull force at 0.5 MPa is 528 N.
Yes, the SAI40X260 is dimensionally interchangeable per ISO 15552. You can drop it in as a replacement for other ISO 15552 profile cylinders with a 40 mm bore, 260 mm stroke, and G1/4 port.
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