Airtac SAI40 Standard Air Cylinder SAI40BX50
The AirTAC SAI40 Standard Air Cylinder SAI40BX50 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 SAI40BX50
The AirTAC SAI40X50 is a double-acting ISO 15552 profile cylinder engineered for standardized mounting interchangeability. Delivering a push force of 628 N at 0.5 MPa, this 40mm bore unit is tailored for compact actuation tasks requiring moderate thrust within a 50mm stroke.
Built with a SUS304 stainless steel piston rod, this model provides superior corrosion resistance for humid or washdown environments. It utilizes a PT tapered port thread and features an extruded aluminum barrel with integrated sensor grooves on both sides, allowing for flexible position detection when paired with compatible switches.
Airtac SAI40 Standard Air Cylinder SAI40BX50 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40BX50 |
|---|---|
| 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 SAI40BX50
| 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 SAI40BX50 Is Used
Package Diverting
Provides the precise 50mm stroke and 628N force needed to actuate routing gates on high-speed packaging conveyors.
Small Part Clamping
Ideal for securing lightweight machined components during secondary milling or drilling operations.
Carton Flap Folding
Delivers reliable downward push to fold corrugated carton flaps prior to tape sealing in end-of-line packers.
Is the Airtac SAI40 Standard Air Cylinder SAI40BX50 the Right Cylinder?
Select this 40mm bore if your application demands more power than the 32mm variant (402 N at 0.5 MPa) but lacks the spatial envelope for the larger 50mm option (982 N at 0.5 MPa). The 50mm stroke is optimal for short-cycle automation where space is restricted.
Because this is a double-acting cylinder, it relies on continuous air pressure to maintain rod position; if air is exhausted, the piston will drift. For gravity-loaded vertical setups requiring fail-safe holding, consider the SAIL (air-released lock) or BSAI (clamp-lock) variants. To match existing tooling, configure replacement units by the 40mm bore, 50mm stroke, PT port, and required mounting accessories like FA flanges or LB foot brackets.
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 SAI40BX50 FAQ
At 0.5 MPa operating pressure, the SAI40X50 generates a push force of 628 N and a pull force of 528 N.
Yes, it is built to the ISO 15552 profile standard, making its mounting dimensions fully interchangeable with other ISO 15552 profile cylinders.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
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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