
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40AX45 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAI40X45 is a double-acting ISO 15552 profile cylinder engineered for compact, high-cycle tasks. Delivering a push force of 879 N at 0.7 MPa, this 40 mm bore unit is tailored for short 45 mm strokes where rapid positioning matters. The extruded aluminum barrel skips traditional tie-rods, yielding a sleeker profile while maintaining standardized mounting dimensions.
This specific configuration features a SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance over standard carbon steel. It utilizes PT tapered port threads (G1/4) and lacks a standard magnet, meaning position sensing via CMSE or DMSE switches is not supported without modification. As a genuine AirTAC component, it guarantees reliable pneumatic performance.
| Model | Airtac SAI40 Standard Air Cylinder SAI40AX45 |
|---|---|
| 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.
| 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.
| 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.
Ideal for securing lightweight machined components during secondary milling or drilling operations.
Provides rapid actuation for small package routing gates in high-speed logistics lines.
Excels at ejecting small formed parts from press dies over a compact 45 mm travel distance.
Choose the SAI40X45 when an application demands a brief 45 mm stroke with moderate force. If your push requirements fall below 628 N at 0.5 MPa, stepping down to the 32 mm bore variant is advisable. Conversely, loads exceeding 982 N at 0.5 MPa necessitate the 50 mm bore model. Because the stroke is under 300 mm, side-load stress on the rod bearing is minimal, though external guides are still recommended for heavy off-center loads.
This model serves as a direct dimensional direct replacement for any ISO 15552 cylinder with a 40 mm bore, 45 mm stroke, and G1/4 ports. Mounting is highly versatile using FA or LB accessories. Note that because air pressure both extends and retracts the rod, this standard cylinder will drift if supply pressure is lost; use a SAIL variant if absolute load holding is required.
Quick checklist
At a standard operating pressure of 0.7 MPa, this 40 mm bore cylinder provides a push force of 879 N and a pull force of 528 N.
Yes, the SAI40X45 is dimensionally interchangeable per ISO 15552 standards. It shares the exact mounting interface, 40 mm bore, and G1/4 port size, allowing it to serve as a direct replacement for other ISO 15552 profile cylinders.
Genuine AirTAC parts produced by AirTAC factory.
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