Airtac SAI40 Standard Air Cylinder SAI40X450
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X450 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 450mm 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
- Stroke450 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 SAI40X450
The AirTAC SAI40X450 is a double-acting ISO 15552 profile cylinder engineered for applications requiring a 450 mm stroke. Delivering a push force of 879 N at 0.7 MPa, it fits seamlessly into standardized mounting layouts. The extruded aluminum barrel design omits tie-rods, providing a clean exterior that simplifies sensor placement along the stroke length.
This configuration features a standard carbon steel piston rod and PT tapered port threads. Because it lacks a magnet, external position sensing must be achieved through alternative methods. For high-temperature environments up to +70 C, the standard TPU seals provide reliable service, though Viton (H) or NBR (N) options are available for specialized chemical or thermal demands.
Airtac SAI40 Standard Air Cylinder SAI40X450 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40X450 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 450 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 SAI40X450
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×450 | 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 SAI40X450 Is Used
Package Diverting
Pushes medium-weight cartons across a 450 mm transfer zone with 879 N of force at 0.7 MPa.
Component Ejection
Ejects machined parts from a fixture, utilizing the 450 mm stroke to clear the work area completely.
Pallet Stopper
Acts as a pneumatic stop for incoming pallets on a low-friction roller conveyor.
Is the Airtac SAI40 Standard Air Cylinder SAI40X450 the Right Cylinder?
Selecting this 40 mm bore over the smaller 32 mm variant upgrades your push force at 0.5 MPa from 402 N to 628 N, making it suitable for moderate lifting and pushing tasks. If your application requires less than 400 N of force, stepping down to the 32 mm bore saves space. The 450 mm stroke is well within the 1200 mm maximum standard stroke for this bore.
Because the stroke exceeds 300 mm, the extended rod is susceptible to bending under side loads. Use external guide rails or a guided cylinder to prevent rod-bearing wear. Note that a standard SAI does not hold position when air pressure is lost; if your system requires dead-load holding, specify the SAIL variant with an air-released lock or use an external pilot-operated check valve. This model is dimensionally interchangeable per ISO 15552, accepting standard FA 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 SAI40X450 FAQ
At 0.7 MPa operating pressure, this 40 mm bore cylinder provides a push force of 879 N and a pull force of 528 N.
Yes, the SAI40X450 is a profile-type cylinder dimensionally interchangeable per ISO 15552, allowing it to drop into existing foot and flange mounts.
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1-Year Warranty
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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