
The AirTAC SAI50 Standard Cylinder SAI50BX80S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 80mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAI50X80-S is a double-acting ISO 15552 profile cylinder engineered to deliver 982 N of push force at 0.5 MPa. With an 80 mm stroke, it provides precise linear motion for mid-range automation tasks. The extruded aluminum barrel eliminates tie-rods, ensuring a clean profile that is dimensionally interchangeable with other ISO 15552 cylinders.
This specific configuration includes a SUS304 stainless steel rod for superior corrosion resistance and a built-in magnet (-S) for position sensing. The barrel features dual sensor grooves compatible with CMSE and DMSE switches. Standard adjustable air cushions at both ends protect the end caps from impact, while PT tapered port threads guarantee a reliable pneumatic seal.
| Model | Airtac SAI50 Standard Cylinder SAI50BX80S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 80 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M16×1.5 |
| 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, 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 | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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. |
|---|---|
| 50 | Bore size in mm. |
| ×80 | 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.
Ideal for driving sealing jaws and folding mechanisms on packaging lines where the 80 mm stroke provides rapid, repeatable actuation.
Provides robust pushing power for diverting medium-weight cartons on conveyor belts, utilizing the 982 N thrust at 0.5 MPa.
Suitable for holding workpieces in machining or assembly fixtures, benefiting from the SUS304 rod's resistance to coolant and moisture.
Select this 50 mm bore when an application requires more power than a 40 mm cylinder (which provides 628 N at 0.5 MPa) but has spatial constraints that prevent stepping up to a 63 mm bore. The 80 mm stroke is ideal for short, rapid movements. Because this is a double-acting cylinder, it requires continuous air pressure to hold a load; if pressure drops, the piston will drift. For dead-load holding, consider the SAIL variant with an air-released lock.
To match this exact ISO 15552 footprint for a direct replacement, specify a 50 mm bore, 80 mm stroke, G1/4 port, and the desired mounting accessory (such as an LB foot or FA flange). The integrated magnet allows for exact end-of-stroke detection without external limit switches.
Quick checklist
At 0.5 MPa operating pressure, this 50 mm bore cylinder generates 982 N of push force and 825 N of pull force. At 0.7 MPa, the push force increases to 1374 N.
Yes. The SAI50X80-S is built to the ISO 15552 standard, making its mounting dimensions and G1/4 port fully interchangeable with comparable ISO 15552 profile cylinders from other manufacturers.
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