
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40X200 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 200mm 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 SAID40X200 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40mm bore and 200mm stroke. Because a carbon steel rod extends from both end covers, the effective piston area is identical on extend and retract, yielding an equal bidirectional force of 528N at 0.5 MPa and 739N at 0.7 MPa. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
This through-rod design allows you to mount the primary workpiece on one end while attaching a cam, position flag, or secondary mechanism to the rear rod. It provides superior anti-rotation guidance compared to a single-rod SAI, and its PT-tapered G1/4 ports ensure secure pneumatic connections.
| Model | Airtac SAID40 Double Rod Cylinder SAID40X200 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 200 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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 | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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. |
|---|---|
| 40 | Bore size in mm. |
| ×200 | 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.
Drives mechanisms requiring identical push and pull dynamics, utilizing the equal annulus area on both stroke ends for stable motion control.
The twin-rod architecture prevents piston rotation, making it ideal for precision sliding guides that cannot tolerate angular deflection.
Mounts the primary tool on the front rod while using the rear rod extension to trigger external limit flags or CMSE / DMSE sensors.
Select the SAID40X200 when your mechanism requires equal push and pull forces, such as 739N at 0.7 MPa in both directions, or needs twin-station actuation. If your application needs less force, stepping down to a 32mm bore offers 483N at 0.7 MPa; if higher thrust is required, moving up to a 50mm bore provides 1154N at 0.7 MPa. The 200mm stroke falls well within the 1200mm maximum standard stroke for this bore.
This model uses a reduced mounting accessory set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and is dimensionally interchangeable per ISO 15552. Note that a plain SAID does not hold its position if air pressure is lost; for secure load holding without live pressure, consider an external rod lock, a SAIL, or a BSAID clamp-lock cylinder. At 200mm stroke, side-load risks are moderate, but external guides are recommended for heavy radial loads.
Quick checklist
Because the double-rod design occupies space on both sides of the piston, the effective area is equal in both directions. It provides 528N at 0.5 MPa, 739N at 0.7 MPa, and 950N at 0.9 MPa for both extension and retraction.
Yes, the SAID40X200 is dimensionally interchangeable with standard ISO 15552 profile cylinders. It uses a standard G1/4 port and supports mounting accessories like FA, LB, and TC, but omits single-rod mounts like FB and CA.
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