
The AirTAC Airtac SAI100 Standard Air Cylinder SAI100X40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 40mm stroke, G1/2 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 SAI100X40-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty tasks, delivering a substantial push force of 3927 N at just 0.5 MPa. Its 40 mm stroke provides rapid, short-travel actuation where high peak force is required. The extruded aluminum barrel design omits tie rods, ensuring a clean exterior that easily drops into existing ISO 15552 mounting interfaces.
This specific configuration includes a built-in magnet (-S) for use with CMSE and DMSE series reed switches, which mount directly into the dual sensor grooves on the barrel sides. The standard carbon steel piston rod offers robust durability for industrial automation, while the adjustable air cushions at both ends ensure smooth deceleration even under high kinetic energy loads.
| Model | Airtac SAI100 Standard Air Cylinder SAI100X40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 40 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max stroke | Up to 1500 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 | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 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. |
|---|---|
| 100 | Bore size in mm. |
| ×40 | 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.
Provides the high force needed for short-stroke stamping, pressing, and rivoting operations in metal fabrication.
Acts as a high-strength stopper for heavy pallets on conveyor lines, absorbing impact with adjustable air cushions.
Quickly ejects molded or machined parts from machinery with a compact 40 mm stroke and 3927 N of force.
Choose this 100 mm bore when an 80 mm bore (2513 N at 0.5 MPa) cannot generate enough push force, but you want to avoid stepping up to a 125 mm bore (6136 N) to save space and air volume. The 40 mm stroke is optimal for short clamping or lifting motions.
Because this is a standard double-acting cylinder, it will not hold a load in place if air pressure is lost or exhausted; the piston will drift. For applications requiring true position holding without live pressure, consider the SAIL (air-released lock) or BSAI (bidirectional clamp-lock) variants. Replacement is straightforward: match the 100 mm bore, 40 mm stroke, PT G1/2 port, and mounting accessory type.
Quick checklist
At 0.5 MPa, the SAI100X40-S generates a push force of 3927 N and a pull force of 3681 N. At 0.7 MPa, the push force increases to 5497 N.
Yes, the SAI100X40-S is dimensionally interchangeable per ISO 15552. It can serve as a drop-in replacement for other ISO 15552 profile cylinders, provided the 100 mm bore, 40 mm stroke, and G1/2 port match your existing interface.
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