
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X150 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 150mm 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.
The AirTAC SAI40X150 is a double-acting ISO 15552 profile cylinder featuring a 40mm bore and 150mm stroke. It generates 879N of push force at 0.7 MPa, making it well-suited for moderate-duty industrial handling and positioning tasks.
This unit features a standard carbon steel piston rod and utilizes PT tapered port threads for reliable pneumatic sealing. Because it lacks the -S magnet option, it operates without integrated position sensing, relying purely on its robust mechanical actuation for straightforward cycling.
| Model | Airtac SAI40 Standard Air Cylinder SAI40X150 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 150 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. |
| ×150 | 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.
Extends 150mm to push medium-weight cartons off a main conveyor belt line with reliable 879N force.
Cycles quickly to eject molded parts from a fixture, utilizing the adjustable air cushions to soften the stroke end.
Drives a secondary clamping arm on an assembly fixture, applying consistent 528N pull force during retraction.
Select this 40mm bore when an application requires stepping up from the 32mm class (which provides 563N at 0.7 MPa) to achieve higher thrust without jumping to the larger 50mm footprint. The 150mm stroke offers ample extension for ejecting parts or lifting medium loads.
If your machinery loses air pressure, this cylinder cannot hold its load in place and will drift; for suspended loads requiring fail-safe holding, consider the SAIL locking variant. As a true ISO 15552 extruded profile cylinder, it serves as a drop-in replacement matching standard 40mm bore dimensions, G1/4 ports, and standard mounting accessories like FA flanges or LB foot brackets.
Quick checklist
At 0.7 MPa operating pressure, this 40mm bore cylinder provides 879N of push force and 734N of pull force. It can reach a theoretical maximum of 128 kgf at 1.0 MPa.
Yes, the SAI40X150 is dimensionally interchangeable per ISO 15552. You can drop it into existing mounts matching the standard 40mm footprint, G1/4 ports, and standard stroke length.
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