Airtac SED Double Rod Cylinder SED80X140S
The AirTAC Airtac SED Double Rod Cylinder SED80X140S 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 140mm, PT3/8 ports, adjustable cushioning.
- BoreØ80 mm
- Stroke140 mm
- Port sizePT3/8
- ConfigurationDouble rod
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SED Double Rod Cylinder SED80X140S
The AirTAC SED80X140S is a double-acting, double-rod ISO 15552 profile cylinder with a 80mm bore and 140mm stroke. Because a 25mm rod occupies both sides of the piston, the annulus area is identical in both directions, yielding an equal thrust of 2268 N at 0.5 MPa on extend and retract. The extruded aluminum barrel contains no external tie rods, ensuring clean integration and strict dimensional interchangeability per ISO 15552 / VDMA 24562.
Equipped from the factory with a magnet (-S), this unit supports CMSE reed and DMSE electronic sensors for end-of-stroke detection. Field-adjustable air cushioning at both ends decelerates the load near stroke end, while the rear rod extension can drive a secondary mechanism or carry a cam. The PT3/8 port and M20x1.5 rod-end thread provide robust pneumatic and mechanical connections for high-cycle automation.
Airtac SED Double Rod Cylinder SED80X140S Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED80X140S |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø80 mm |
| Stroke | 140 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 SED80X140S
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 80 | Bore size in mm. |
| ×140 | 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 SED80X140S Is Used
CNC Shuttle Conveyor
Drives a dual-sided material shuttle in a CNC lathe, utilizing the equal 2268 N both-way force to consistently index bar stock without speed variation between extend and retract strokes.
Pneumatic Mold Press
Applies 3175 N of clamping force at 0.7 MPa for small plastic injection molds, leveraging the twin 25mm rods to prevent platen rotation during the molding cycle.
Sheet Metal Edge Guide
Aligns heavy coil stock on a slitting line. The rear rod end mounts a cam for a mechanical flag, triggering a DMSE electronic sensor to confirm guide positioning.
Is the Airtac SED Double Rod Cylinder SED80X140S the Right Cylinder?
Selecting this 80mm bore provides 2268 N of equal both-way force at 0.5 MPa. If your payload is lighter, the 63mm bore offers 1402 N, stepping down effectively. If you need to push heavier fixtures, the 100mm bore provides 3681 N. Choose this double-rod SED over a single-rod SE when your application demands dual-side guidance, resistance to load rotation, or rear-rod tooling. The twin rods ensure the effective area and speed are perfectly matched in both travel directions.
For a drop-in ISO 15552 replacement, match the 80mm bore, 140mm stroke, PT3/8 port, and your preferred mounting from the available Basic, FA, LB, TC, FTC, TCM1, or TCM2 sets. Note that a plain SED will drift and cannot hold position on air loss; the cushion only decelerates near stroke end. For fail-safe holding, specify a BSED double-rod lock or an external pilot-operated check valve. Since the stroke is 140mm, standard mounting handles the load without requiring external guides.
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 SED80X140S FAQ
Because the double rod creates equal annulus areas on both sides, the force is identical in both directions: 2268 N at 0.5 MPa, 3175 N at 0.7 MPa, and a maximum of 463 kgf at 1.0 MPa.
The twin-rod design provides superior anti-rotation guidance for the load, allows you to mount tooling or a sensor cam on the rear rod end, and guarantees equal speed and force in both directions. It is dimensionally interchangeable with other ISO 15552 profile cylinders.
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