
The AirTAC SAI40 Standard Air Cylinder SAI40AX475 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAI40X475 is a double-acting ISO 15552 profile cylinder featuring a 40mm bore and 475mm stroke. It delivers 628N of push force at 0.5 MPa, extending to 879N at 0.7 MPa, making it well-suited for mid-range linear actuation tasks across automated lines.
This unit is configured with a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance compared to standard carbon steel. It utilizes PT tapered port threads and, because no magnet is specified, does not include the -S sensor groove option.
| Model | Airtac SAI40 Standard Air Cylinder SAI40AX475 |
|---|---|
| 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.
| 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. |
| ×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.
Drives 475mm stroke pushers on packaging lines to transfer products between conveyor belts.
Moves lightweight jigs into machining centers using the 879N force available at 0.7 MPa.
Actuates 40mm bore diverter arms on logistics sortation tracks for high-speed routing.
When sizing this actuator, stepping up to the 50mm bore yields 982N of push force at 0.5 MPa, while dropping to the 32mm bore reduces it to 402N. Because this 475mm stroke creates a long unsupported rod extension, external guides are strongly recommended to prevent rod-bearing bending under any side load. A guided cylinder should be used if the load cannot be kept perfectly inline.
This model is dimensionally interchangeable per ISO 15552, serving as a direct replacement for other standard profile cylinders. It uses a G1/4 port, accepts standard mounting accessories like FA/FB flanges, and relies on adjustable air cushions at both ends to decelerate the piston. Note that air cushions do not hold loads; if position holding is required without live pressure, consider the SAIL or BSAI variants.
Quick checklist
The SAI40X475 provides 628N of push force and 528N of pull force at 0.5 MPa. At 0.7 MPa, the push force increases to 879N.
Yes, the SAI40X475 is dimensionally interchangeable per ISO 15552, meaning it shares standard mounting interfaces and can act as a direct replacement for other standard profile cylinders.
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