Airtac SAI40 Standard Air Cylinder SAI40BX300S
The AirTAC SAI40 Standard Air Cylinder SAI40BX300S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 300mm 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
- Stroke300 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 SAI40BX300S
The AirTAC SAI40X300-S is a double-acting ISO 15552 profile cylinder engineered for rigorous automation environments. Delivering a push force of 628 N at 0.5 MPa (879 N at 0.7 MPa), it provides robust linear motion across its 300 mm stroke. This standardized mounting interface ensures direct compatibility with other ISO 15552 cylinders.
This specific configuration includes a SUS304 stainless steel rod for superior corrosion resistance in harsh or washdown settings. It also features an integrated magnet (-S) for seamless operation with CMSE and DMSE reed switches via the dual sensor grooves on the extruded aluminum barrel. Fluid ports are PT tapered threads.
Airtac SAI40 Standard Air Cylinder SAI40BX300S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40BX300S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 300 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 SAI40BX300S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×300 | 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 SAI40BX300S Is Used
Package Diverting
Provides reliable 300 mm extension to push packages off a high-speed sorting line, utilizing the integrated magnet to confirm retracted position.
Component Gauging
Advances a testing probe into position against machined parts, where the SUS304 rod ensures measurement stability in humid factory environments.
Pallet Positioning
Indexes empty pallets into a wrapping station, taking advantage of the 879 N push force at 0.7 MPa to overcome minor sliding friction.
Is the Airtac SAI40 Standard Air Cylinder SAI40BX300S the Right Cylinder?
When configuring this 40 mm bore actuator, verify if the 628 N thrust at 0.5 MPa is sufficient for your load; stepping up to the 50 mm bore yields 982 N, while dropping to 32 mm provides 402 N. Because this model features a 300 mm stroke, side-load and rod-bearing bending become critical factors. To prevent premature seal wear and rod deflection, implement external guide rails or utilize a fully guided cylinder for heavy off-center loads.
For any application requiring the piston to hold its position or resist drifting when air pressure is exhausted, a standard SAI cylinder will not suffice as its air cushions only decelerate the stroke end. You must specify the SAIL variant with an air-released lock, the BSAI bidirectional clamp-lock, or install an external pilot-operated check valve. This genuine ISO 15552 unit accepts PT ports and standard FA/FB flange or LB foot mounts.
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 SAI40BX300S FAQ
This 40 mm bore cylinder generates a push force of 628 N at 0.5 MPa and 879 N at 0.7 MPa. The pull force is 528 N at 0.5 MPa and 1402 N is not applicable here; pull at 0.7 MPa is 1402 N for the 63 mm bore, while this 40 mm model pulls 528 N at 0.5 MPa.
Yes. The SAI series is dimensionally interchangeable per ISO 15552 standards. You can drop this into existing mounts like FA flanges or LB foot brackets, matching the 40 mm bore, 300 mm stroke, and PT port locations without machining.
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.
Request a Quote for Airtac SAI40 Standard Air Cylinder SAI40BX300S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.