
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X180 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 180mm 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 SAI40X180 is a double-acting ISO 15552 profile cylinder engineered to deliver 628 N of push force at 0.5 MPa. Its 180 mm stroke provides the extended travel needed for mid-range positioning tasks. The extruded aluminum barrel design omits tie rods, ensuring a clean exterior that drops seamlessly into standardized ISO 15552 mounting footprints.
For demanding environments, you can configure this unit with high-temperature Viton (H) seals instead of the standard TPU. The barrel features dual sensor grooves, allowing direct mounting of CMSE or DMSE switches when a magnet is specified. This specific configuration utilizes a standard carbon steel piston rod and a tapered PT G1/4 port thread.
| Model | Airtac SAI40 Standard Air Cylinder SAI40X180 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 180 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. |
| ×180 | 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 628 N push force and 180 mm extension needed to actuate diverting arms on medium-speed packaging conveyors.
Extends to secure workpieces in light machining fixtures, utilizing its adjustable air cushions to soften the end-of-stroke impact.
Drives material flow gates on hoppers, offering reliable double-acting operation with a carbon steel rod for industrial durability.
If your application requires less thrust, stepping down to a 32 mm bore yields 402 N at 0.5 MPa, while moving up to a 50 mm bore provides 982 N for heavier payloads. At 180 mm of travel, side loading is minimal, but ensure the load is axially aligned to prevent premature rod-bearing wear. Because this is a standard double-acting cylinder, it will drift if air pressure is lost; use the SAIL variant with an air-released lock if you need to hold a load safely during an outage. To replace an existing unit, match the 40 mm bore, 180 mm stroke, G1/4 port, and your required mounting accessory like an FA flange or LB foot.
Quick checklist
At 0.5 MPa, the SAI40X180 generates 628 N of push force and 528 N of pull force. When supplied with 0.7 MPa, the push force increases to 879 N.
Yes, the SAI40X180 is built to the ISO 15552 dimensional standard, making it interchangeable with other ISO 15552 profile cylinders of the same bore and stroke. Ensure your port thread and mounting match.
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