Airtac SED Double Rod Cylinder SED100X550
The AirTAC Airtac SED Double Rod Cylinder SED100X550 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 SED100X550
The AirTAC SED100X550 is a double-acting, double-rod profile cylinder built to ISO 15552 dimensions. A 25mm rod exits both end covers, yielding equal annulus areas. This means drive force is identical in extend and retract—3681N at 0.5MPa and 5153N at 0.7MPa both ways. The extruded aluminum barrel has no external tie rods.
This specific SKU lacks the internal magnet, so it carries no position sensor. The rear rod extension is ideal for mounting a cam or driving a secondary mechanism. Field-adjustable air cushions at both ends absorb kinetic energy near stroke end, operating at speeds of 30-800mm/s.
Airtac SED Double Rod Cylinder SED100X550 Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED100X550 |
|---|---|
| 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 SED100X550
| 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 SED100X550 Is Used
Web Guiding Mechanism
Drives a heavy paper web guide with 3681N of equal force both ways. The twin 25mm rods prevent rotational deflection during long 550mm traverses.
Pallet Transfer Pusher
Pushes loaded pallets on an assembly line. The rear rod end mounts a physical cam to trigger downstream conveyors without needing a sensor.
Large Mold Handling
Shifts heavy injection molds between stations. The symmetrical double-rod layout ensures smooth, balanced lifting without twisting under the 751kgf max load.
Is the Airtac SED Double Rod Cylinder SED100X550 the Right Cylinder?
Choose this 100mm bore if you need 3681N of equal bidirectional force at 0.5MPa. Stepping down to the 80mm bore drops output to 2268N, while the largest 125mm bore raises it to 5734N. A double-rod design gives superior anti-rotation guidance compared to a single-rod SE cylinder. Note that a plain SED drifts on air loss; use a BSED rod-lock variant for fail-safe holding.
At 550mm stroke, the protruding rear rod requires clearance. Because long strokes amplify side loads, use external guides to prevent rod binding. For ISO 15552 replacements, match the 100mm bore, 550mm stroke, PT1/2 port, and mounting choice (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 SED100X550 FAQ
Because the rod occupies both sides of the piston, force is equal in both directions. It provides 3681N at 0.5MPa, 5153N at 0.7MPa, and a maximum of 751kgf at 1.0MPa.
No. A standard SED cylinder will drift on air loss. The adjustable air cushion only decelerates the piston near stroke end; it is not a locking device. For fail-safe holding, use an AirTAC BSED double-rod rod-lock cylinder.
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