Airtac SAI40 Standard Air Cylinder SAI40BX40
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40BX40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 40mm 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
- Stroke40 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 SAI40BX40
The AirTAC SAI40X40 is a double-acting ISO 15552 profile cylinder engineered for compact, high-cycle automation. Delivering a push force of 628 N at 0.5 MPa, this 40 mm bore unit utilizes a 40 mm stroke to execute rapid linear movements. The extruded aluminum barrel omits tie-rods, providing a clean exterior that simplifies mounting and sensor placement.
This specific configuration features a SUS304 stainless steel piston rod (material code B), offering superior corrosion resistance for wet or chemically exposed environments. Fluid is filtered to 40 um, and the PT tapered port threads ensure a secure, leak-free pneumatic connection. Without a built-in magnet, it relies on external physical signaling or can be swapped for an -S variant if proximity sensing is required.
Airtac SAI40 Standard Air Cylinder SAI40BX40 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40BX40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 40 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 SAI40BX40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×40 | 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 SAI40BX40 Is Used
Short-Stroke Clamping
Ideal for holding small metal or plastic components during machining, utilizing its 628 N push force to secure parts firmly without excessive bulk.
Package Diverting
Executes rapid 40 mm sorting movements on conveyor lines, pushing lightweight cartons into divert lanes with high cycle frequency.
Welding Fixtures
The SUS304 stainless steel rod excels in welding cells, resisting spatter contamination and ambient moisture while positioning parts.
Is the Airtac SAI40 Standard Air Cylinder SAI40BX40 the Right Cylinder?
Select this 40 mm bore when an application demands 628 N of push force at 0.5 MPa, bridging the gap between the smaller 32 mm (402 N) and larger 50 mm (982 N) variants. The short 40 mm stroke is optimal for high-speed clamping and ejecting where compact footprint matters. Because the standard SAI is double-acting, it requires continuous air pressure to maintain its position; if a load must be held during a pressure loss, consider the SAIL locking variant or an external pilot check valve.
As a true ISO 15552 profile cylinder, it serves as a direct replacement for any standard 40 mm bore unit with identical stroke, G1/4 PT ports, and standard mounting accessories like FA flanges or LB foot brackets. For side-load compensation on this short stroke, ensure the rod bearing is aligned with the load axis to prevent premature seal wear.
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 SAI40BX40 FAQ
At a standard operating pressure of 0.5 MPa, the SAI40X40 generates 628 N of push force and 528 N of pull force. If pressure is increased to 0.7 MPa, the push force rises to 879 N.
Yes. The SAI40X40 features a dimensionally interchangeable ISO 15552 mounting interface, meaning it matches standard 40 mm bore dimensions, G1/4 ports, and mounting hole patterns for easy direct replacement.
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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.
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