Airtac SAI40 Standard Air Cylinder SAI40BX50S
The AirTAC SAI40 Standard Air Cylinder SAI40BX50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 50mm 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
- Stroke50 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 SAI40BX50S
The AirTAC SAI40X50-S is a double-acting ISO 15552 profile cylinder engineered for compact, high-cycle automation. Delivering a push force of 879 N at 0.7 MPa, this 40 mm bore unit integrates a 50 mm stroke to suit short-travel clamping and lifting tasks. The extruded aluminum barrel omits tie-rods, providing a clean exterior that drops directly into standard ISO 15552 mounting footprints.
This specific configuration includes a SUS304 stainless steel piston rod (material code B) for superior corrosion resistance in wet or mildly chemical environments. Equipped with a magnet (-S), the cylinder operates seamlessly with CMSE and DMSE reed switches housed in the dual sensor grooves machined into both sides of the barrel. Fluid ports feature PT tapered threads, ensuring robust, leak-free pneumatic connections.
Airtac SAI40 Standard Air Cylinder SAI40BX50S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40BX50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 50 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 SAI40BX50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×50 | 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 SAI40BX50S Is Used
Short-Stroke Clamping
Ideal for securing lightweight components during machining or assembly, utilizing its 879 N push force to hold parts firmly in automated fixtures.
Package Diverting
Provides rapid actuation for diverting small to medium packages on conveyor lines, where the SUS304 rod withstands occasional washdowns.
Gate Ejection
Deploys quickly to eject finished plastic or metal parts from molding machinery, taking advantage of the dual sensor grooves for precise end-of-stroke confirmation.
Is the Airtac SAI40 Standard Air Cylinder SAI40BX50S the Right Cylinder?
Select this 40 mm bore when an application requires more thrust than a 32 mm bore (which provides 563 N at 0.7 MPa) but lacks the physical envelope for a 50 mm cylinder. The 50 mm stroke is optimal for rapid, short-distance movements. Because the stroke is well under 300 mm, side-load stress on the rod bearing is minimal, though external guides should still support any heavy off-center loads.
This cylinder serves as a dimensionally interchangeable replacement for other ISO 15552 cylinders, matching standard bore, stroke, G1/4 PT port, and mounting accessory dimensions. If the machinery requires the piston to maintain its position during a loss of air pressure, note that the standard SAI lacks a holding mechanism; consider the SAIL variant with an air-released lock or an external pilot-operated check valve for fail-safe load securing.
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 SAI40BX50S FAQ
At a standard operating pressure of 0.7 MPa, this 40 mm bore cylinder generates a push force of 879 N and a pull force of 528 N. It can reach a maximum push force of 1130 N at 0.9 MPa.
Yes, the SAI40X50-S is dimensionally interchangeable per ISO 15552. You can drop it into existing setups matching the 40 mm bore, 50 mm stroke, G1/4 port, and standard mounting accessories without modifying the machine frame.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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