Airtac SAI40 Standard Air Cylinder SAI40BX15
The AirTAC SAI40 Standard Air Cylinder SAI40BX15 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 15mm 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
- Stroke15 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 SAI40BX15
The AirTAC SAI40X15 is a double-acting ISO 15552 profile cylinder engineered for short-stroke actuation. It generates 879 N of push force at 0.7 MPa, making it highly effective for compact clamping and ejecting tasks. The extruded aluminum barrel omits tie-rods, providing a clean exterior that simplifies machine integration.
This specific configuration features a SUS304 stainless steel piston rod for superior corrosion resistance and a PT tapered port thread. Because a 15 mm stroke is a non-standard made-to-order dimension, it provides tailored motion control for specialized mechanisms. The barrel also includes dual-sided sensor grooves, ready to accept CMSE or DMSE switches if a magnet is added later.
Airtac SAI40 Standard Air Cylinder SAI40BX15 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40BX15 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 15 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 SAI40BX15
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×15 | 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 SAI40BX15 Is Used
Compact Clamping
Delivers 879 N of push force at 0.7 MPa to secure workpieces in tight machining fixtures where full stroke length is restricted.
Product Ejection
Executes rapid 15 mm retraction and extension to knock items off a production line without extending into the walkway.
Valve Actuation
Provides the necessary thrust and rapid response to pilot and shift heavy-duty process valves in localized equipment bays.
Is the Airtac SAI40 Standard Air Cylinder SAI40BX15 the Right Cylinder?
This 40 mm bore offers a middle ground between the 32 mm bore (402 N at 0.5 MPa) and the 50 mm bore (982 N at 0.5 MPa). For applications requiring precise positioning over this very short 15 mm travel, the standard double-acting design is ideal. If the machinery loses air pressure, this cylinder will not hold its load; a SAIL variant with an air-released lock or an external pilot-operated check valve is required for fail-safe holding. To replace an existing actuator, match the 40 mm bore, 15 mm stroke, PT G1/4 port, and standard FA or FB flange accessories.
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 SAI40BX15 FAQ
At an operating pressure of 0.7 MPa, the SAI40X15 generates 879 N of push force and 739 N of pull force.
Yes, as a genuine ISO 15552 profile cylinder, its mounting interface and center dimensions allow it to serve as a direct replacement for other ISO 15552 standard cylinders.
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Genuine AirTAC parts produced by AirTAC factory.
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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Most inquiries answered within 7-8 hours.
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