Airtac SAI40 Standard Air Cylinder SAI40AX450S
The AirTAC SAI40 Standard Air Cylinder SAI40AX450S 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- 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 SAI40AX450S
The AirTAC SAI40X450-S is a double-acting ISO 15552 profile cylinder engineered for standard automation tasks. It provides a push force of 628 N and a pull force of 528 N at 0.5 MPa. The 450 mm stroke makes it highly suitable for mid-range linear traversing and part ejection. Because it is a profile cylinder with an extruded aluminum barrel, it drops seamlessly into existing ISO 15552 mounting interfaces.
This specific configuration includes a magnet for position sensing, operating seamlessly with CMSE and DMSE switches housed in the dual sensor grooves on the barrel. The piston rod is constructed from SUS420J2 stainless steel for enhanced corrosion resistance, and the PT tapered port threads guarantee a reliable, leak-free pneumatic connection.
Airtac SAI40 Standard Air Cylinder SAI40AX450S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40AX450S |
|---|---|
| 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 SAI40AX450S
| 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 SAI40AX450S Is Used
Package Sorting Diverter
Handles 450 mm linear strokes to push medium-weight packages off a high-speed conveyor belt with reliable 628 N force.
Component Ejection
Ejects machined parts from a CNC enclosure, utilizing the SUS420J2 stainless rod to resist coolant mist and corrosion.
Pallet Positioning
Indexes empty pallets along a transfer line, using dual CMSE sensors to confirm full extension and retraction.
Is the Airtac SAI40 Standard Air Cylinder SAI40AX450S the Right Cylinder?
Choose this 40 mm bore when a 32 mm bore (402 N push at 0.5 MPa) lacks the necessary thrust, but a 50 mm bore (982 N push) would be physically oversized. The 450 mm stroke falls within the standard 1200 mm maximum for this bore. For any stroke at or above 300 mm, the unsupported rod is highly susceptible to bending under side loads; utilizing an external guide rail or switching to a guided cylinder is strongly recommended to prevent premature rod-bearing wear.
As a standard double-acting cylinder, this model relies on live air pressure to maintain its position. If pneumatic pressure is lost or the control valve is centered, the piston will drift and drop. For applications requiring true load holding without continuous air supply, consider the SAIL variant with an air-released lock or the BSAI bidirectional clamp-lock cylinder. This SAI40X450-S uses PT ports, accepts standard ISO 15552 mounting accessories like FA/FB flanges, and includes the -S magnet option.
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 SAI40AX450S FAQ
At an operating pressure of 0.5 MPa, this 40 mm bore cylinder generates a push force of 628 N and a pull force of 528 N. If the pressure is increased to 0.7 MPa, the push force rises to 879 N.
Yes. The SAI40X450-S is dimensionally interchangeable per ISO 15552. It shares the exact same mounting interface and spacing as other ISO 15552 profile cylinders, allowing it to serve as a direct replacement without needing to alter the machine frame.
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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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