
The AirTAC Airtac SAID50 Double Rod Cylinder SAID50BX150 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 150mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
The AirTAC SAID50X150 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 50 mm bore and 150 mm stroke. Because a piston rod exits both end covers, the effective annulus area is identical on the extend and retract strokes. This design yields exactly 825 N of output force in both directions at 0.5 MPa, ensuring perfectly symmetric speed and thrust for demanding transfer tasks.
Equipped with SUS304 stainless steel rods, this variant offers superior corrosion resistance for harsh environments. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. You can attach the primary workpiece to the front rod and use the rear rod extension to drive a secondary mechanism or mount a position flag.
| Model | Airtac SAID50 Double Rod Cylinder SAID50BX150 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 150 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. |
| ×150 | 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 moving payloads that require identical push and pull dynamics, leveraging the equal 825 N annulus area on both strokes.
The twin-rod architecture prevents the load from twisting during transit, providing superior guidance over single-rod actuators.
Mount the primary workpiece on the front rod while using the rear rod protrusion to drive a secondary mechanism or cam.
Choose this 50 mm bore double-rod actuator when your application demands equal push and pull forces, or when you need twin-station actuation and anti-rotation guidance that a single-rod SAI cannot provide. If your mechanism requires less force, consider stepping down to the 40 mm bore, which provides 528 N both ways at 0.5 MPa. Since the stroke is 150 mm, side-load risks are moderate, but always verify the rod-bearing bending limits if the load is offset.
This cylinder uses a PT G1/4 port and supports the reduced SAID mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). It is dimensionally interchangeable per ISO 15552 standards. Note that a plain SAID does not hold its load when air pressure is removed; for position holding without live pressure, explore the SAIL or BSAID series. Because no magnet is specified, position sensing requires external flags rather than internal CMSE or DMSE switches.
Quick checklist
Because the double-rod design subtracts the rod area from both sides of the piston, it provides an equal push and pull force of 825 N at 0.5 MPa, and 1484 N at 0.9 MPa.
Yes. As a true ISO 15552 profile cylinder, it is dimensionally interchangeable with other ISO 15552 double-rod cylinders, utilizing a standard 50 mm bore and G1/4 PT port.
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