Airtac SED Double Rod Cylinder SED63X250S
The AirTAC SED Double Rod Cylinder SED63X250S is a genuine double-acting ISO 15552 double-rod cylinder: a Ø20mm piston rod exits BOTH ends of the Ø63mm bore, giving equal force and speed in both directions and letting you mount tooling or a sensor flag on the back rod. Stroke 250mm, PT3/8 ports, adjustable cushioning.
- BoreØ63 mm
- Stroke250 mm
- Port sizePT3/8
- ConfigurationDouble rod
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SED Double Rod Cylinder SED63X250S
The AirTAC SED63X250S is a double-acting, double-rod ISO 15552 profile cylinder with a 63mm bore and 250mm stroke. A piston rod exits both end covers, yielding identical annulus areas. This means drive force is exactly equal in extend and retract, delivering 1402N each way at 0.5MPa and 1962N at 0.7MPa. The extruded aluminum barrel omits external tie rods for a clean ISO 15552 footprint.
Equipped with a standard magnet (-S), this unit directly accepts CMSE reed or DMSE electronic sensors in the integrated groove. Field-adjustable air cushions at both ends decelerate the load near stroke end. The twin-rod architecture provides superior anti-rotation guidance and allows mounting a rear cam or secondary mechanism on the protruding back rod end.
Airtac SED Double Rod Cylinder SED63X250S Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED63X250S |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø63 mm |
| Stroke | 250 mm |
| Configuration | Double rod, double acting |
| Port size | PT3/8 |
| 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, 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).
Theoretical Output Force (Ø63mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 1402 N |
| 0.7 MPa | 1962 N |
| Max (@1.0 MPa) | 286 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.
Model Code: Airtac SED Double Rod Cylinder SED63X250S
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 63 | Bore size in mm. |
| ×250 | 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).
Where the Airtac SED Double Rod Cylinder SED63X250S Is Used
Web Guiding Mechanism
Uses the 1962N equal both-way force to tension and steer packaging film webs without rotational deflection.
Dual-Side Shuttle Gate
Drives a synchronized entry gate on a packaging line using both rod ends to move opposing linkages simultaneously.
Mid-Process Transfer Stand
Pushes machined aluminum castings between stations, relying on the twin rods to prevent binding under offset loads.
Is the Airtac SED Double Rod Cylinder SED63X250S the Right Cylinder?
Selecting this 63mm bore provides 1962N of equal both-way force at 0.7MPa. If your payload requires less thrust, the adjacent 50mm bore yields 1154N at 0.5MPa; if scaling up, the 80mm bore provides 2268N at 0.5MPa. Because the 250mm stroke is 250mm or greater, incorporate an external guide rail to prevent side-load bending on the twin Ø20mm rods. Unlike a single-rod SE cylinder, this SED design inherently resists rotational torque. Remember that a plain SED drifts on air loss, as the adjustable cushion only decelerates near stroke end and does not lock position. For fail-safe holding, consider a BSED double-rod lock cylinder. When replacing an ISO 15552 unit, match the 250mm stroke, PT3/8 port, and mounting subset (Basic, FA, LB, TC, FTC, TCM1, TCM2).
Quick checklist
- ✓ Equal force/speed both directions needed?
- ✓ Back-rod space for tooling or a flag
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/G)
- ✓ Magnet (-S) for CMSE/DMSE sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Support both rod ends; avoid side load.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (LB/FA/TC/FTC/TCM1/TCM2).
- check Installation by qualified personnel per AirTAC docs.
Airtac SED Double Rod Cylinder SED63X250S FAQ
Because the double-rod design has identical annulus areas on both sides, force is equal in both directions: 1402N at 0.5MPa, 1962N at 0.7MPa, and a maximum of 286kgf at 1.0MPa.
The twin rods exiting both ends provide superior anti-rotation guidance and allow you to mount a rear cam or sensor flag. It also provides identical extend and retract forces, making it ideal for symmetrical web-guiding or dual-motion tasks.
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