Airtac SAI40 Standard Air Cylinder SAI40X290
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X290 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 290mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ40 mm
- Stroke290 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 SAI40X290
The AirTAC SAI40X290 is a double-acting ISO 15552 profile cylinder featuring a 40mm bore and 290mm stroke. It generates 628N of push force and 528N of pull force at 0.5 MPa, making it well-suited for medium-duty handling tasks.
This model incorporates a standard carbon steel piston rod and uses PT tapered port threading. The extruded aluminum barrel includes integrated sensor grooves on both sides, allowing for direct mounting of CMSE or DMSE switches when position feedback is required.
Airtac SAI40 Standard Air Cylinder SAI40X290 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40X290 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 290 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 SAI40X290
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×290 | 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 SAI40X290 Is Used
Package Sorting
Diverts and pushes medium-weight packages along conveyor lines with precise 290mm travel.
Component Clamping
Secures workpieces during machining or assembly operations using its 628N push force.
Material Handling
Lifts and positions palletized goods or bins within automated storage systems.
Is the Airtac SAI40 Standard Air Cylinder SAI40X290 the Right Cylinder?
Choose this 40mm bore when a 32mm bore (402N push at 0.5 MPa) is insufficient, but a 50mm bore (982N push at 0.5 MPa) would be excessive. For this 290mm stroke length, be mindful of side-load; an external guide rail or a guided cylinder is recommended to prevent rod-bearing bending and premature seal wear.
As a true ISO 15552 profile cylinder, it serves as a drop-in replacement for any standard ISO 15552 unit with a 40mm bore, 290mm stroke, G1/4 port, and matching mounting accessories. Note that the standard SAI does not hold loads without air pressure; if your application requires position holding upon air loss, select the SAIL lock or BSAI clamp-lock variant.
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 SAI40X290 FAQ
At an operating pressure of 0.5 MPa, the SAI40X290 provides a push force of 628N and a pull force of 528N. At 0.7 MPa, the push force increases to 879N.
Yes, the SAI40X290 is dimensionally interchangeable per ISO 15552. It can serve as a drop-in replacement for other ISO 15552 profile cylinders with a 40mm bore, 290mm stroke, and G1/4 port.
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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.
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Most inquiries answered within 7-8 hours.
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