
The AirTAC SED Double Rod Cylinder SED50X35S is a genuine double-acting ISO 15552 double-rod cylinder: a Ø20mm piston rod exits BOTH ends of the Ø50mm bore, giving equal force and speed in both directions and letting you mount tooling or a sensor flag on the back rod. Stroke 35mm, PT1/4 ports, adjustable cushioning.
The AirTAC SED50X35S is a double-acting, double-rod ISO 15552 profile cylinder. Because a rod exits both ends, the annulus area is symmetrical, giving you exactly 825 N of thrust and pull at 0.5 MPa. The extruded aluminum barrel lacks external tie rods, ensuring a clean ISO 15552 mounting footprint.
Equipped with a -S magnet, this model supports CMSE reed and DMSE electronic sensors for end-of-stroke confirmation. The rear rod extension is ideal for mounting a cam or secondary limit flag, while the twin M16x1.5 rods provide superior anti-rotation guidance for precision short-stroke tasks.
| Model | Airtac SED Double Rod Cylinder SED50X35S |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 35 mm |
| Configuration | Double rod, double acting |
| Port size | PT1/4 |
| 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 (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 | 825 N |
| 0.7 MPa | 1155 N |
| Max (@1.0 MPa) | 168 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. |
|---|---|
| 50 | Bore size in mm. |
| ×35 | 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).
Provides 825 N of equal both-way force at 0.5 MPa, ensuring stable part transfer without rotational drift on compact assembly lines.
Twin M16x1.5 rods resist lateral deflection, using the rear rod end to drive a cam for precise material tracking at 30-800 mm/s.
Simultaneously actuates two sealing jaws with 1154 N at 0.7 MPa, leveraging the through-rod symmetry for perfectly balanced clamping.
Choose this 50mm bore if you need 825 N both ways at 0.5 MPa. Stepping down to a 40mm bore yields 528 N both ways, while moving up to a 63mm bore provides 1402 N both ways. The twin-rod design is preferred over a single-rod SE when your application demands high torsional rigidity or synchronized dual-side actuation. Remember that the adjustable air cushions only decelerate the load near stroke end; they do not hold position on air loss. For fail-safe holding, consider a BSED rod-lock cylinder or external pilot-operated check valve. To replace an existing ISO 15552 unit, match the 50mm bore, 35mm stroke, PT1/4 port, and desired mounting (Basic, FA, LB, TC, FTC, TCM1, or TCM2).
Quick checklist
Because the double-rod design equalizes the piston area, it generates 825 N at 0.5 MPa and 1154 N at 0.7 MPa in both directions. The maximum force is 168 kgf at 1.0 MPa.
The twin rods exiting both covers provide superior anti-rotation guidance and allow the rear rod to drive a secondary mechanism or sensor cam. It remains dimensionally interchangeable per ISO 15552 while offering equal push and pull forces.
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