
The AirTAC Airtac SAI80 Standard Air Cylinder SAI80X290S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 290mm stroke, G3/8 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 SAI80X290-S is a double-acting ISO 15552 profile cylinder offering a robust push force of 2513 N at 0.5 MPa. Its 290 mm stroke provides the extended travel needed for mid-sized automation tasks. Because this variant includes a magnet, it integrates seamlessly with CMSE and DMSE sensor switches mounted directly into the barrel's dual grooves.
Built with a standard carbon steel piston rod and a PT tapered port thread, this extruded aluminum barrel cylinder ensures reliable pneumatic performance. The adjustable air cushions at both ends decelerate the piston effectively, while the standardized ISO 15552 mounting interface guarantees true drop-in compatibility with other cylinders of the same standard.
| Model | Airtac SAI80 Standard Air Cylinder SAI80X290S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 290 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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. |
|---|---|
| 80 | Bore size in mm. |
| ×290 | 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 2513 N of thrust at 0.5 MPa for securely pressing bearings and pins into machined housings.
Uses the 290 mm stroke to extend diverter arms and re-route heavy pallets along processing lines.
Extends to hold large steel frames firmly in place while automated welding robots execute the joints.
Selecting this 80 mm bore over the 63 mm class steps the push force up from 1559 N to 2513 N at 0.5 MPa, giving you extra thrust for heavier fixtures. If your application requires less force, dropping to a 50 mm bore reduces the footprint while still providing 982 N.
With a 290 mm stroke, the unsupported rod length increases, making the piston rod bearing susceptible to bending under side loads. To prevent premature wear, implement an external guide rail or use a guided cylinder. If the machine loses air pressure, this standard cylinder will not hold its load; for fail-safe holding, specify the SAIL (air-released lock) or BSAI (clamp-lock) variant. To match this unit, specify the 80 mm bore, 290 mm stroke, G3/8 PT port, TC trunnion or FA flange mounting, and the -S magnet option.
Quick checklist
At 0.5 MPa, this 80 mm bore cylinder generates 2513 N of push force and 2268 N of pull force. At 0.7 MPa, the push force increases to 3518 N.
Yes. The SAI80X290-S is dimensionally interchangeable per ISO 15552, meaning it shares the exact same mounting interface and can serve as a drop-in replacement for other ISO 15552 profile cylinders.
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