
The AirTAC SAI50 Standard Cylinder SAI50X350 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 350mm 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 SAI50X350 is a double-acting ISO 15552 profile cylinder featuring a 50mm bore and 350mm stroke. It generates 982N of push force and 825N of pull force at 0.5 MPa, making it well-suited for medium-duty automation tasks requiring a long linear reach. The extruded aluminum barrel design omits traditional tie rods, presenting a clean exterior that integrates seamlessly into modern machinery.
This specific configuration utilizes a standard carbon steel piston rod and PT (tapered) port threading. Because it lacks a built-in magnet (-S), it is optimized for pure actuation rather than direct sensor mounting. The adjustable air cushions at both stroke ends ensure smooth deceleration, and high-temperature Viton (H) seals can be specified for thermally demanding environments.
| Model | Airtac SAI50 Standard Cylinder SAI50X350 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 350 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. |
| ×350 | 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.
Pushes packaged goods across a 350mm transfer gap on a conveyor line with 982N of force at 0.5 MPa.
Indexes heavy jigs or workpieces to the next machining station over a 350mm linear travel distance.
Actuates medium-duty pallet stops and lifting mechanisms in automated storage and retrieval systems.
Choose the 50mm bore when 40mm bore cylinders (providing 628N push at 0.5 MPa) lack the necessary thrust, but a 63mm bore (1559N push) would be excessive overkill. At 350mm of stroke, the extended carbon steel rod is highly susceptible to bending under side loads. To prevent premature rod-bearing wear and failure, mount external guide rails or utilize a fully guided cylinder for heavy offset loads.
As a true ISO 15552 profile cylinder, this unit serves as a direct replacement matching the standardized mounting interface dimensions of other ISO 15552 cylinders. If your process requires the load to remain safely suspended after air pressure is cut off, do not rely on the cushions; instead, integrate an external pilot-operated check valve or select the AirTAC SAIL locking variant.
Quick checklist
At 0.5 MPa operating pressure, this 50mm bore cylinder provides a push force of 982N and a pull force of 825N. At 0.7 MPa, the push force increases to 1374N.
Yes, the SAI50X350 is dimensionally interchangeable per ISO 15552 mounting interface standards. It shares the same footprint and G1/4 port locations as other standard profile cylinders, allowing for seamless direct replacement.
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