
The AirTAC SAI50 Standard Cylinder SAI50AX50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 50mm 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 SAI50X50-S is a double-acting ISO 15552 profile cylinder engineered to deliver 982 N of push force and 825 N of pull force at 0.5 MPa. Its 50 mm bore and 50 mm stroke create a highly compact, square-footprint actuator ideal for space-constrained automated machinery. The extruded aluminum barrel design omits tie rods, providing a clean exterior that drops directly into existing ISO 15552 mounting interfaces.
This specific configuration includes a -S magnet for seamless integration with CMSE and DMSE series reed switches via the dual-side sensor grooves. It is built with an SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance in humid or mildly chemically exposed environments, and utilizes PT tapered port threads to ensure a robust, leak-free pneumatic connection.
| Model | Airtac SAI50 Standard Cylinder SAI50AX50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 50 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. |
| ×50 | 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 reliable 982 N clamping pressure at 0.5 MPa for holding workpieces securely during machining, welding, or assembly operations.
The 50 mm stroke actuates diverter arms and sorting gates rapidly at speeds up to 800 mm/s, ensuring smooth product flow on packaging lines.
Ideal for knocking finished parts out of molds or press dies, utilizing the SUS420J2 stainless rod to withstand repetitive impact and shop-floor moisture.
Choose this 50 mm bore when an application requires roughly 1000 N of force at 0.5 MPa, which is a significant step up from the 40 mm bore (628 N push) but much more compact than the 63 mm bore (1559 N push). The 50 mm stroke provides ample extension for short clamping, ejecting, or gating tasks without taking up excessive machine real estate. Because this is a double-acting cylinder, it requires continuous air pressure to move and hold the rod; it will drift if pressure is lost. For applications requiring true position holding without live air, consider the SAIL (air-released lock) or BSAI (clamp-lock) variants.
When replacing an actuator, verify the 50 mm stroke, 50 mm bore, G1/4 PT porting, and standard mounting accessory type (such as an FA flange or TC trunnion). Ensure you specify the -S magnet option if your control system relies on electronic position confirmation.
Quick checklist
At a standard operating pressure of 0.5 MPa, the 50 mm bore 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 -S suffix indicates this model includes a magnet and features dual-side sensor grooves on the extruded barrel, making it fully compatible with AirTAC CMSE and DMSE series solid-state and reed switches.
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