Airtac SAI40 Standard Air Cylinder SAI40X45
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X45 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 45mm 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
- Stroke45 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 SAI40X45
The AirTAC SAI40X45 is a double-acting ISO 15552 profile cylinder featuring a 40mm bore and a 45mm stroke. It generates 628N of push force and 528N of pull force at 0.5 MPa, making it a solid choice for compact actuation tasks requiring moderate thrust. The extruded aluminum barrel design omits tie rods, providing a clean exterior that simplifies mounting and cleaning.
This specific configuration utilizes a standard carbon steel piston rod and PT tapered port threads. Because it lacks a built-in magnet (-S), it is optimized for pure mechanical actuation without the need for reed or electronic position sensing. The standard TPU seals offer excellent wear resistance for general-purpose industrial environments.
Airtac SAI40 Standard Air Cylinder SAI40X45 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40X45 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 45 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 SAI40X45
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×45 | 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 SAI40X45 Is Used
Short-Stroke Clamping
Ideal for holding lightweight workpieces securely in machining or assembly fixtures where a 45mm travel distance is sufficient.
Package Diverting
Provides the rapid, moderate-force actuation needed to push small to medium packages off a conveyor belt in sorting lines.
Gate Ejection
Delivers reliable force to eject molded or stamped parts from a press area, utilizing the 628N thrust to clear the die quickly.
Is the Airtac SAI40 Standard Air Cylinder SAI40X45 the Right Cylinder?
When selecting this model, consider that the 45mm stroke is a non-standard intermediate length, which is highly effective for applications requiring precise short-travel movements without the excess bulk of a 50mm standard stroke. If your application requires less force, stepping down to a 32mm bore yields 402N at 0.5 MPa, while upgrading to a 50mm bore provides 982N of push force.
As a double-acting cylinder, the SAI40X45 relies on continuous air pressure to maintain its rod position; it will drift if air is lost or the valve is centered. For applications that must hold a load safely without live pressure, consider the SAIL locking variant or an external pilot-operated check valve. Being a true ISO 15552 profile cylinder, it serves as a drop-in replacement for any standard 40mm bore, 45mm stroke ISO cylinder, utilizing G1/4 ports and standard FA/LB mounting accessories.
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 SAI40X45 FAQ
At 0.5 MPa, the SAI40X45 provides 628N of push force and 528N of pull force. At 0.7 MPa, the push force increases to 879N.
Yes, the SAI40X45 is dimensionally interchangeable per ISO 15552. It shares the standard 40mm mounting interface, G1/4 ports, and M12x1.25 rod thread, allowing it to drop in as a replacement for other ISO 15552 profile cylinders.
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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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