Airtac SAI40 Standard Air Cylinder SAI40BX30
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40BX30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 30mm 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
- Stroke30 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 SAI40BX30
The AirTAC SAI40X30 is a double-acting profile cylinder with a 40mm bore and a 30mm stroke, delivering 628N of push force at 0.5 MPa. Its extruded aluminum barrel lacks tie-rods and complies with ISO 15552 mounting dimensions, making it a direct replacement for any standard ISO 15552 cylinder. The short 30mm stroke is ideal for compact clamping and ejecting tasks.
This specific configuration features a SUS304 stainless steel rod (option B) for superior corrosion resistance in wet or washdown environments. It uses PT tapered port threads and lacks a piston magnet, meaning it is optimized for purely mechanical actuation without requiring electronic position sensing.
Airtac SAI40 Standard Air Cylinder SAI40BX30 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40BX30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 30 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 SAI40BX30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×30 | 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 SAI40BX30 Is Used
Short-Stroke Clamping
Provides 628N of clamping force at 0.5 MPa for securely holding lightweight machined components during milling or drilling.
Package Ejection
The 30mm stroke offers rapid retraction and extension to push small cartons off a conveyor line without taking up excess machine footprint.
Washdown Sorting
The SUS304 stainless steel rod withstands moisture and cleaning chemicals, making it suitable for food or pharmaceutical sorting gates.
Is the Airtac SAI40 Standard Air Cylinder SAI40BX30 the Right Cylinder?
Select this 40mm bore when a 32mm bore (402N push at 0.5 MPa) lacks the necessary thrust, but a 50mm bore (982N) would be physically oversized. Because the stroke is only 30mm, side-load stress on the rod bearing is minimal, and no external guide is required. If your machinery must hold a load vertically when air pressure is removed, note that this standard cylinder will drift; you should specify a SAIL variant with an air-released lock or use an external pilot-operated check valve. Ensure your setup matches the G1/4 PT port, the appropriate mounting accessory (like an FA flange), and that no -S magnet is needed for sensors.
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 SAI40BX30 FAQ
At 0.5 MPa operating pressure, the SAI40X30 provides 628N of push force and 528N of pull force. At 0.7 MPa, the push force increases to 879N.
Yes. The SAI40X30 is a true ISO 15552 profile cylinder, meaning its mounting interface and envelope dimensions are fully interchangeable with other ISO 15552 cylinders from brands like Festo or SMC.
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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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