Airtac SAI40 Standard Air Cylinder SAI40AX325
The AirTAC SAI40 Standard Air Cylinder SAI40AX325 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 325mm 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
- Stroke325 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 SAI40AX325
The AirTAC SAI40X325 is a double-acting ISO 15552 profile cylinder featuring a 40mm bore and a 325mm stroke. It provides a push force of 628N at 0.5 MPa and 879N at 0.7 MPa, making it well-suited for medium-duty handling tasks that require a long extension reach.
This specific configuration incorporates a SUS420J2 stainless steel rod for enhanced corrosion resistance compared to standard carbon steel. It uses PT tapered port threads and lacks a standard magnet, meaning external reed or solid-state sensors will not function without modification.
Airtac SAI40 Standard Air Cylinder SAI40AX325 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40AX325 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 325 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 SAI40AX325
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×325 | 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 SAI40AX325 Is Used
Long-Reach Pushing
Ideal for rejecting or transferring products across wider conveyor belts where a 325mm stroke is required to clear moving machinery.
Pallet Handling
Provides the 879N force needed to push cardboard cartons or align lightweight pallets at sorting hubs.
Material Dispensing
Executes long linear actuation for dispensing adhesives or applying labels across a wide working area.
Is the Airtac SAI40 Standard Air Cylinder SAI40AX325 the Right Cylinder?
This 40mm bore generates 879N of push force at 0.7 MPa; if your application requires less force, the 32mm bore offers 563N, while the 50mm bore steps up to 1374N for heavier demands. The 325mm stroke on this profile cylinder creates a long unsupported rod length, so you must manage side load carefully to prevent rod-bearing bending—use an external guide rail or a guided cylinder to prevent premature wear.
Because this is a standard double-acting cylinder, it will drift and drop if air pressure is lost or the valve is centered; it cannot hold a load. For drop-prevention, consider the SAIL variant with an air-released lock or a BSAI clamp-lock cylinder. As a true ISO 15552 profile barrel, it is dimensionally interchangeable with other ISO 15552 cylinders, matching the 40mm bore, 325mm stroke, PT G1/4 port, 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 SAI40AX325 FAQ
At 0.7 MPa operating pressure, this 40mm bore cylinder provides a push force of 879N and a pull force of 528N. At 0.5 MPa, the push force is 628N.
Yes, the SAI series is a genuine ISO 15552 profile cylinder. It is dimensionally interchangeable with other ISO 15552 cylinders, matching standard mounting dimensions, the 325mm stroke, and the G1/4 port size.
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