Airtac SED Double Rod Cylinder SED80X185
The AirTAC Airtac SED Double Rod Cylinder SED80X185 is a genuine double-acting ISO 15552 double-rod cylinder: a Ø25mm piston rod exits BOTH ends of the Ø80mm bore, giving equal force and speed in both directions and letting you mount tooling or a sensor flag on the back rod. Stroke 185mm, PT3/8 ports, adjustable cushioning.
- BoreØ80 mm
- Stroke185 mm
- Port sizePT3/8
- ConfigurationDouble rod
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SED Double Rod Cylinder SED80X185
The AirTAC SED80X185 is a double-acting, double-rod ISO 15552 profile cylinder. A 25mm rod exits both end covers, yielding identical annulus areas. This means you get equal force and speed in both directions—about 2268N at 0.5MPa and 3175N at 0.7MPa each way.
The twin-rod architecture provides superior load guidance and anti-rotation resistance. The rear rod extension can drive a secondary mechanism or mount a cam. This SKU has no magnet, so position sensing is not available without a custom order. Adjustable air cushions at both ends protect your equipment at stroke ends.
Airtac SED Double Rod Cylinder SED80X185 Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED80X185 |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø80 mm |
| Stroke | 185 mm |
| Configuration | Double rod, double acting |
| Port size | PT3/8 |
| 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 (Ø80mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 2268 N |
| 0.7 MPa | 3175 N |
| Max (@1.0 MPa) | 463 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 SED80X185
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 80 | Bore size in mm. |
| ×185 | 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 SED80X185 Is Used
Web Guiding Mechanism
Uses the 3175N both-way force to tension and steer film or paper webs without rotational drift.
Dual-Side Transfer Gate
Moves a 185mm stroke diverter plate from both ends simultaneously, ensuring perfectly balanced high-speed sorting.
CNC Tool Presetter
Drives a measuring carriage with the rear rod while the front rod handles the 2268N loading probe.
Is the Airtac SED Double Rod Cylinder SED80X185 the Right Cylinder?
Choose this 80mm bore if you need 2268N of both-way force at 0.5MPa. Stepping down to the 63mm bore yields 1402N, while stepping up to the 100mm bore provides 3681N. The double rod prevents twist compared to a single-rod SE cylinder, making it ideal for rigid loads. This unit uses a PT3/8 port and M20x1.5 rod thread.
Remember that a plain SED does not hold position on air loss; the piston drifts. The adjustable cushion only decelerates near stroke end—it is not a lock. For fail-safe holding, use an external rod lock or a BSED series cylinder. Since this 185mm stroke is under 300mm, side-load stress is minimal, but external guides are still recommended for heavy radial loads.
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 SED80X185 FAQ
Because the double-rod design has equal piston areas on both sides, it delivers 2268N at 0.5MPa, 3175N at 0.7MPa, and a maximum of 463kgf at 1.0MPa in both extend and retract directions.
Yes. The SED80X185 is dimensionally interchangeable per ISO 15552 / VDMA 24562. Just match the 80mm bore, 185mm stroke, PT3/8 port, and mounting interface (Basic, FA, LB, TC, FTC, TCM1, or TCM2).
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