
The AirTAC Airtac SAI80 Standard Air Cylinder SAI80X155S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 155mm 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 SAI80X155-S is a double-acting ISO 15552 profile cylinder engineered for demanding pneumatic tasks. It generates 2513 N of push force at 0.5 MPa, making it well-suited for medium-heavy actuation. The 155 mm stroke handles extended travel without approaching the 1500 mm maximum limit. Equipped with a standard magnet, this unit integrates seamlessly with CMSE and DMSE reed switches.
This model features a carbon steel piston rod for structural durability and utilizes an extruded aluminum barrel without tie-rods. The barrel includes integrated sensor grooves on both sides, allowing flexible switch mounting. Adjustable air cushions at both ends ensure smooth deceleration, and the PT tapered port threading guarantees a leak-free connection.
| Model | Airtac SAI80 Standard Air Cylinder SAI80X155S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 155 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. |
| ×155 | 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 clamping force at 0.5 MPa to secure thick metal plates during machining or welding operations.
Uses the 155 mm stroke to push heavy cartons across high-speed conveyor belts with reliable positioning.
Ideal for light-duty pressing and stamping tasks where consistent 80 mm bore force is required.
Select this 80 mm bore when your application requires more power than a 63 mm bore (which provides 1559 N at 0.5 MPa), but you want to avoid the physical bulk of a 100 mm bore. The 155 mm stroke is a custom intermediate length, providing exact travel for specialized packaging or clamping tasks.
If your machinery loses air pressure, this cylinder cannot hold its load in place—the piston will drift. For suspended loads requiring fail-safe holding, consider the SAIL variant with an air-released lock or the BSAI bidirectional clamp-lock. As a true ISO 15552 cylinder, it serves as a drop-in replacement for any standard 80 mm profile cylinder matching the G3/8 port and M20x1.5 rod thread.
Quick checklist
At 0.5 MPa, the SAI80X155-S 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 SAI80X155-S is dimensionally interchangeable per ISO 15552. It can serve as a drop-in replacement for other ISO 15552 profile cylinders with an 80 mm bore, G3/8 port, and M20x1.5 rod thread.
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