
The AirTAC Airtac SED Double Rod Cylinder SED100X275S is a genuine double-acting ISO 15552 double-rod cylinder: a Ø25mm piston rod exits BOTH ends of the Ø100mm bore, giving equal force and speed in both directions and letting you mount tooling or a sensor flag on the back rod. Stroke 275mm, PT1/2 ports, adjustable cushioning.
The AirTAC SED100X275S is a double-acting, double-rod ISO 15552 profile cylinder. A rod extends from both end covers, yielding identical annulus areas. This provides equal force in both directions, delivering 3681 N at 0.5 MPa and 5153 N at 0.7 MPa on extend and retract.
This 100mm bore unit includes an S-option magnet for DMSE electronic or CMSE reed sensors. The extruded aluminum barrel omits external tie rods, and field-adjustable air cushions at both ends decelerate the load near stroke end without acting as a lock.
| Model | Airtac SED Double Rod Cylinder SED100X275S |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø100 mm |
| Stroke | 275 mm |
| Configuration | Double rod, double acting |
| Port size | PT1/2 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max stroke | Up to 1500 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 | 3682 N |
| 0.7 MPa | 5154 N |
| Max (@1.0 MPa) | 751 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. |
|---|---|
| 100 | Bore size in mm. |
| ×275 | 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 a heavy pallet indexing station with 5153 N at 0.7 MPa, using the rear rod to synchronize a secondary cam mechanism.
Shifts a loaded tool carousel with equal both-way force, preventing rotational drift during bidirectional tool changes.
Positions a 100kg welding clamp with 3681 N at 0.5 MPa, utilizing the twin-rod structure for high torsional rigidity.
The SED100X275S provides 3681 N both ways at 0.5 MPa. If your mechanism requires less force, step down to the 80mm bore for 2268 N. For heavier transfer, step up to the 125mm bore for 5734 N. The twin-rod design is ideal over a single-rod SE when you need anti-rotation guidance or a rear rod to drive a secondary mechanism.
At 275mm stroke, the extended rear rod requires clearance and an external guide to manage side loads. The SED lacks a fail-safe rod lock; the piston drifts on air loss. For position holding, pair it with an external pilot-operated check valve or a BSED double-rod lock cylinder. Drop-in replacement requires matching the 100mm bore, 275mm stroke, PT1/2 port, and a mounting subset (Basic, FA, LB, TC, FTC, TCM1, TCM2).
Quick checklist
Because a rod exits both ends, force is identical in both directions: 3681 N at 0.5 MPa, 5153 N at 0.7 MPa, and a maximum of 751 kgf at 1.0 MPa.
The twin rods provide superior anti-rotation guidance and allow the rear rod end to mount a sensor flag or drive a secondary mechanism, while maintaining an ISO 15552 mounting interface.
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