Airtac SED Double Rod Cylinder SED100X325
The AirTAC Airtac SED Double Rod Cylinder SED100X325 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 325mm, PT1/2 ports, adjustable cushioning.
- BoreØ100 mm
- Stroke325 mm
- Port sizePT1/2
- ConfigurationDouble rod
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SED Double Rod Cylinder SED100X325
The AirTAC SED100X325 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 325 mm stroke and a robust 100 mm bore. Because a rod extends from both end covers, the annulus area is identical on extend and retract. This yields perfectly equal force and speed in both directions, generating 3681 N each way at 0.5 MPa and 5153 N at 0.7 MPa. The extruded aluminum barrel design omits external tie rods, ensuring a clean profile that drops in dimensionally for any ISO 15552 footprint.
This specific SKU lacks the -S magnet option, so it has no onboard position sensing. However, the rear rod extension is highly valuable for mounting a physical limit flag or driving a secondary mechanism. Field-adjustable air cushions at both ends provide kinetic energy absorption near stroke end. Note that the twin-rod architecture extends overall length; you must leave rear-rod clearance when laying out your machine.
Airtac SED Double Rod Cylinder SED100X325 Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED100X325 |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø100 mm |
| Stroke | 325 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 SED100X325
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 100 | Bore size in mm. |
| ×325 | 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 SED100X325 Is Used
CNC Lathe Bar Feeders
Drives stock pushers with 5153 N of equal both-way force, using the rear rod to mount a physical collision flag without interfering with the front gripper.
Multi-Station Press Transfer
Synchronizes part movement across a 325 mm span. The twin rods resist torsional twist during heavy 751 kgf max load shifts.
Large Mold Separation Arms
Exerts identical pulling and pushing force to split heavy mold halves, ensuring perfectly balanced extraction without directional force mismatch.
Is the Airtac SED Double Rod Cylinder SED100X325 the Right Cylinder?
Stepping up or down in bore size is critical for matching your energy needs. If 3681 N both ways is excessive, the next size down is the 80 mm bore, which yields 2268 N at 0.5 MPa. If you need more push, the 125 mm bore provides 5734 N at 0.5 MPa. The 100 mm bore uses a PT1/2 port and a 25 mm rod with an M20x1.5 thread. Because this is a 325 mm stroke, leverage external guides to manage side loads and prevent rod binding over the long travel. Remember that a plain SED does not hold position on air loss; the piston drifts. The adjustable air cushion only decelerates near the end of stroke, acting as a bumper rather than a fail-safe lock. For secure holding, consider an external rod lock or the BSED series.
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 SED100X325 FAQ
The SED100X325 provides equal force in both directions due to the double-rod design. It delivers 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 ensures identical force and speed on extend and retract, which is critical for balanced transfer systems. It also allows you to mount a cam or sensor flag on the rear rod, and provides better torsional stability against side loads over the 325 mm stroke.
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