
The AirTAC SAI50 Standard Cylinder SAI50AX800S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 800mm 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 SAI50X800-S is a double-acting ISO 15552 profile cylinder engineered for long-reach linear motion. It delivers a push force of 982 N and a pull force of 825 N at 0.5 MPa, operating effectively across a 30-800 mm/s speed range. The 800 mm stroke provides extensive travel for packaging and material handling lines.
This variant includes an integrated magnet (-S) for direct compatibility with CMSE and DMSE sensor switches, which seat neatly into the dual grooves machined into the extruded aluminum barrel. The piston rod is constructed from SUS420J2 stainless steel (code A) for enhanced corrosion resistance, and air connections utilize PT tapered threading.
| Model | Airtac SAI50 Standard Cylinder SAI50AX800S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 800 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. |
| ×800 | 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 transferring products across wide conveyor belts or indexing pallets over an 800 mm travel distance in automated assembly lines.
Provides the necessary 982 N of push force at 0.5 MPa to deflect heavy cardboard cartons or totes into downstream sorting lanes.
Drives large-format cutting heads or sealing bars across wide packaging film webs where a long, smooth stroke is required.
Selecting this 50 mm bore unit makes sense when a 40 mm bore falls short on thrust, offering 982 N at 0.5 MPa compared to the 628 N of the smaller size. If your application requires substantially more power, stepping up to a 63 mm bore yields 1559 N. Because this model features an 800 mm stroke, the extended piston rod is highly susceptible to bending under side loads; utilizing an external guide rail or a fully guided cylinder is strongly recommended to prevent premature rod-bearing wear.
As a dimensionally interchangeable ISO 15552 cylinder, it serves as a direct replacement for other standard profile cylinders sharing the same 50 mm bore, 800 mm stroke, G1/4 port, and mounting footprint. If the machinery must hold a load in place during a complete loss of air pressure, note that the standard adjustable air cushions only decelerate the piston at stroke ends and do not function as a braking mechanism; an external pilot-operated check valve or the SAIL locking variant would be necessary for true position holding.
Quick checklist
At a standard operating pressure of 0.5 MPa, this 50 mm bore cylinder provides a push force of 982 N and a pull force of 825 N. If pressure is increased to 0.7 MPa, the push force rises to 1374 N.
Yes. The SAI50X800-S is built to the ISO 15552 standard, making its mounting dimensions and G1/4 port fully interchangeable with other ISO 15552 profile cylinders of the same bore and stroke.
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