Airtac SAI40 Standard Air Cylinder SAI40BX260S
The AirTAC SAI40 Standard Air Cylinder SAI40BX260S 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 SAI40BX260S
The AirTAC SAI40X260-S 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 dimensional interchangeability with standard ISO 15552 mounting interfaces.
This specific configuration includes a SUS304 stainless steel rod for superior corrosion resistance in humid or washdown environments. It is equipped with a magnet (-S) for seamless integration with CMSE or DMSE sensor switches, which seat neatly into the dual grooves on the extruded aluminum barrel. Fluid ports are PT tapered G1/4.
Airtac SAI40 Standard Air Cylinder SAI40BX260S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40BX260S |
|---|---|
| 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 SAI40BX260S
| 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 SAI40BX260S Is Used
Packaging Diverters
Provides the 879 N push force and 260 mm reach needed to actuate routing gates on high-speed packaging lines, while the SUS304 rod resists moisture exposure.
Product Reject Arms
Uses the integrated magnet with DMSE sensors to confirm full extension before rejecting off-spec products from a moving conveyor belt.
Assembly Tooling
Drives mid-force clamping fixtures on automated machining cells, benefiting from the ISO 15552 mounting dimensions for easy tooling standardization.
Is the Airtac SAI40 Standard Air Cylinder SAI40BX260S the Right Cylinder?
Choose this 40 mm bore when an application requires more thrust than the 32 mm bore (402 N at 0.5 MPa) but lacks the physical space for a 50 mm bore (982 N at 0.5 MPa). The 260 mm stroke offers ample extension, but because it exceeds 300 mm, you must account for side-load risks. An unsupported rod of this length can bend under lateral stress, so utilizing an external guide rail or a dedicated guided cylinder will prevent premature rod-bearing wear.
For direct replacements, match the 40 mm bore, 260 mm stroke, G1/4 port, and the required mounting accessory (such as an LB foot or FA flange). Remember to specify the -S magnet if position sensing is required. Note that standard air cushions only decelerate the piston at end-of-stroke; they do not hold a load. If the system loses air pressure, the rod will drift, requiring a SAIL lock variant or external pilot-operated check valve for secure positioning.
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 SAI40BX260S FAQ
At an operating pressure of 0.7 MPa, this 40 mm bore double-acting cylinder generates 879 N of push force and 740 N of pull force. At 0.5 MPa, it provides 628 N of push force.
Yes, the SAI40X260-S is dimensionally interchangeable per ISO 15552. You can drop it into existing setups by matching the 40 mm bore, 260 mm stroke, G1/4 ports, and your specific mounting accessories.
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Covers non-human-caused product damage.
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