
The AirTAC SAI50 Standard Cylinder SAI50X225S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 225mm 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 SAI50X225-S is a double-acting ISO 15552 profile cylinder featuring a 50mm bore and a 225mm non-standard stroke. It generates 982N of push force at 0.5 MPa, making it a robust choice for moderate-duty automation. This extruded aluminum barrel design omits tie rods, providing a clean exterior while maintaining strict dimensional interchangeability with other ISO 15552 cylinders.
Configured with a magnetic piston (-S), this unit supports CMSE and DMSE reed switches via sensor grooves on both sides of the barrel. The standard carbon steel piston rod offers reliable strength for general industrial use, while the PT tapered port threads ensure a secure, leak-free pneumatic connection.
| Model | Airtac SAI50 Standard Cylinder SAI50X225S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 225 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. |
| ×225 | 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 982N push force needed to divert heavy packages on a sorting line at speeds up to 800 mm/s.
Holds workpieces securely in machining stations, using the magnetic piston for end-of-stroke confirmation.
Raises light pallets or tote bins; pair with an external guide to prevent rod deflection over the 225mm stroke.
Selecting this 50mm bore makes sense when you need 982N of push force at 0.5 MPa, sitting comfortably between the 40mm bore (628N) and the 63mm bore (1559N). Because this 225mm stroke is a non-standard made-to-order length, expect a slightly different lead time compared to standard increments.
With a stroke exceeding 200mm, side loads can cause rod-bearing bending and premature wear; using an external guide rail or a guided cylinder helps manage lateral forces. Since this is a standard double-acting cylinder, it will not hold a load if air pressure drops—use the SAIL variant with an air-released lock or an external rod lock for fail-safe positioning. This model replaces any ISO 15552 cylinder with a 50mm bore, 225mm stroke, PT G1/4 ports, and standard mounting accessories like FA flanges or TC trunnions.
Quick checklist
At 0.5 MPa, it provides 982N of push force and 825N of pull force. At the maximum operating pressure of 1.0 MPa, the theoretical push force is 200 kgf.
Yes. It is built to strict ISO 15552 profile barrel standards, making it dimensionally interchangeable with any ISO 15552 cylinder of the same 50mm bore and 225mm stroke.
Genuine AirTAC parts produced by AirTAC factory.
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