
The AirTAC Airtac SED Double Rod Cylinder SED40X290 is a genuine double-acting ISO 15552 double-rod cylinder: a Ø16mm piston rod exits BOTH ends of the Ø40mm bore, giving equal force and speed in both directions and letting you mount tooling or a sensor flag on the back rod. Stroke 290mm, PT1/4 ports, adjustable cushioning.
The AirTAC SED40X290 is a double-acting, double-rod profile cylinder built to ISO 15552 dimensions. A 16 mm rod exits both end covers, yielding an identical annulus area on each side. This means you get 528 N of output force in both extend and retract directions at 0.5 MPa.
It features a PT1/4 port, an M12x1.25 rod-end thread, and field-adjustable air cushioning at both ends. This SKU ships without a magnet, so it does not support CMSE or DMSE position sensors. The extruded aluminum barrel has no external tie rods, ensuring a clean profile for compact machinery.
| Model | Airtac SED Double Rod Cylinder SED40X290 |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 290 mm |
| Configuration | Double rod, double acting |
| Port size | PT1/4 |
| 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 (0–150 °C with FKM seals) |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 30 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SED datasheet and ISO 15552 / VDMA 24562 dimensions. Confirm against the product label before installation. Port options: PT (standard) / G (BSPP).
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa | 739 N |
| Max (@1.0 MPa) | 108 kgf |
Because a rod exits both ends, the effective piston area — and therefore the force — is identical on extend and retract. Actual usable force is lower than theoretical; size with a safety margin.
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 40 | Bore size in mm. |
| ×290 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSE / DMSE sensor sensing. |
Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B). Seals: TPU (blank) / FKM high-temp (H) / NBR (N). Thread: PT (blank) / G. Mounting (SED): Basic, LB, FA, TC, FTC, TCM1, TCM2. Related: SE (single rod), SEJ (double-rod adjustable stroke), BSED (double-rod rod lock).
Drives dual opposing guide jaws on a conveyor. The twin rods prevent yaw, while the equal 528 N both-way force keeps delicate panels aligned without skewing.
Actuates a pivoting steering roller for packaging film. The rear rod end mounts a physical cam flag, mechanically triggering a downstream cutoff at 290 mm.
Clamps aluminum extrusions during sawing. The through-rod design allows the rear rod end to push a secondary chip deflector simultaneously.
Choose this 40 mm bore if you need 528 N both ways at 0.5 MPa. Stepping down to the 32 mm bore drops output to 345 N, while moving up to the 50 mm bore raises it to 825 N. The twin-rod design provides superior anti-rotation resistance compared to a single-rod SE cylinder, making it ideal for guiding loads.
At 290 mm stroke, the extended rod length requires external guides to prevent side-load binding. Note that an SED does not hold position on air loss; the piston drifts. For fail-safe holding, use an external rod lock or a BSED double-rod rod lock cylinder. To replace an ISO 15552 unit, match the 40 mm bore, 290 mm stroke, PT1/4 port, and mounting choice (Basic, FA, LB, TC, FTC, TCM1, or TCM2).
Quick checklist
Because the rod occupies both sides of the piston, force is equal in both directions. It provides 528 N at 0.5 MPa, 739 N at 0.7 MPa, and a maximum of 108 kgf at 1.0 MPa.
Yes. The SED40X290 is dimensionally interchangeable per ISO 15552. Match the 40 mm bore, 290 mm stroke, PT1/4 port, and mounting style (Basic, FA, LB, TC, FTC, TCM1, TCM2) for a direct drop-in replacement.
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