Airtac SAI40 Standard Air Cylinder SAI40X475
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X475 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 475mm 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
- Stroke475 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 SAI40X475
The AirTAC SAI40X475 is a double-acting ISO 15552 profile cylinder engineered for standardized mounting and reliable linear motion. Utilizing an extruded aluminum barrel, it provides a robust yet lightweight solution. This 40mm bore variant generates 879N of push force at 0.7 MPa, making it well-suited for moderate load transfer across its 475mm stroke.
Beyond the standard specifications, this model features a carbon steel piston rod for high tensile strength and structural durability. The fluid porting utilizes a PT tapered thread type, ensuring a secure, mechanically sealed pneumatic connection. Because it lacks an integrated magnet, it operates without electronic position sensing.
Airtac SAI40 Standard Air Cylinder SAI40X475 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40X475 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 475 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 SAI40X475
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×475 | 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 SAI40X475 Is Used
Package Diversion
Provides the 475mm reach and 628N push force needed to actuate diverter arms on medium-duty packaging conveyors.
Pallet Handling
Extends to push or align standard pallets at workstation stops, utilizing its long stroke to clear adjacent machinery.
Material Ejection
Ejects machined components from an automated fixture, relying on the carbon steel rod to withstand repetitive impact forces.
Is the Airtac SAI40 Standard Air Cylinder SAI40X475 the Right Cylinder?
Selecting this 40mm bore over the smaller 32mm variant upgrades your push force at 0.5 MPa from 402N to 628N, providing extra thrust margin for mid-range actuation. If your application requires even greater power, stepping up to the 50mm bore yields 982N at the same pressure. For this specific 475mm stroke, managing side load is critical; long unsupported rods are susceptible to bending and premature rod-bearing wear. Employ an external guide rail or a dedicated guided cylinder to absorb lateral forces and preserve the actuator's lifespan.
As a dimensionally interchangeable ISO 15552 cylinder, this unit serves as a drop-in replacement for other standard profile cylinders with matching 40mm bore, 475mm stroke, PT G1/4 port, and compatible mounting accessories like FA flanges or LB foot brackets. Note that a standard SAI does not hold its position when air pressure is removed; if your cycle demands fail-safe load holding, consider the SAIL pneumatic lock variant or an external rod lock.
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 SAI40X475 FAQ
At an operating pressure of 0.5 MPa, this 40mm bore cylinder provides 628N of push force and 528N of pull force. When pressure increases to 0.7 MPa, the push force rises to 879N.
Yes, the SAI40X475 is a true ISO 15552 profile cylinder, making its mounting dimensions fully interchangeable with other standard cylinders of the same bore and stroke. Ensure your setup matches the G1/4 port and selected mounting accessories.
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