Airtac SED Double Rod Cylinder SED100X550S
The AirTAC Airtac SED Double Rod Cylinder SED100X550S 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 550mm, PT1/2 ports, adjustable cushioning.
- BoreØ100 mm
- Stroke550 mm
- Port sizePT1/2
- ConfigurationDouble rod
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SED Double Rod Cylinder SED100X550S
The AirTAC SED100X550S is a double-acting, double-rod profile cylinder built to ISO 15552 dimensions. A 25 mm rod exits both end covers, yielding identical annulus areas and equal force in both directions—delivering 3681 N each way at 0.5 MPa and 5153 N at 0.7 MPa. The extruded aluminum barrel omits external tie rods, and field-adjustable air cushions at both ends decelerate the 550 mm stroke.
Because the -S option includes a magnet, this model supports DMSE electronic and CMSE reed sensors for end-of-stroke detection. The extending rear rod is highly useful for mounting a cam, driving a secondary mechanism, or providing extra load guidance against rotation. Remember that air cushions only slow the piston near stroke end; they do not hold position on air loss.
Airtac SED Double Rod Cylinder SED100X550S Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED100X550S |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø100 mm |
| Stroke | 550 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).
Theoretical Output Force (Ø100mm)
| 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.
Model Code: Airtac SED Double Rod Cylinder SED100X550S
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 100 | Bore size in mm. |
| ×550 | 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 SED100X550S Is Used
Servo Press Demolding
Drives a 550 mm stroke mold ejector where the rear rod simultaneously trips a limit flag, utilizing 5153 N of equal both-way force to prevent binding.
Pallet Transfer Pusher
Pushes heavy pallets between parallel roller conveyors, using the twin-rod structure to resist torsional twisting without an external guide shaft.
Web Splicer Clamp
Clamps moving material webs in a splicing machine, where the double-rod design ensures the clamp face remains perfectly parallel under 751 kgf max load.
Is the Airtac SED Double Rod Cylinder SED100X550S the Right Cylinder?
Selecting this 100 mm bore makes sense when your process requires 5153 N of bidirectional force at 0.7 MPa. If your load is lighter, the 80 mm bore provides 2268 N at 0.5 MPa, while stepping up to the 125 mm bore yields 5734 N at 0.5 MPa. The twin-rod design is preferred over a single-rod SE cylinder when you need strict anti-rotation control, dual-side work attachment, or rear-rod sensing.
For a drop-in replacement, match the 100 mm bore, 550 mm stroke, PT1/2 port, M20x1.5 rod thread, and your mounting choice (Basic, FA, LB, TC, FTC, TCM1, or TCM2). At 550 mm, the side-lever arm grows; always use external linear guides to prevent rod binding and premature seal wear. For fail-safe load holding, pair this cylinder with an external rod lock or specify a BSED series cylinder.
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 SED100X550S FAQ
Because a rod exits both ends, the force is identical in extend and retract directions. It provides 3681 N at 0.5 MPa, 5153 N at 0.7 MPa, and a maximum of 751 kgf at 1.0 MPa.
The twin-rod design provides equal force both ways and superior resistance to rotational torque. The rear rod can mount a sensor flag or drive a secondary mechanism, and it drops into any ISO 15552 footprint using Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounts.
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