Airtac SED Double Rod Cylinder SED80X50
The AirTAC Airtac SED Double Rod Cylinder SED80X50 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 50mm, PT3/8 ports, adjustable cushioning.
- BoreØ80 mm
- Stroke50 mm
- Port sizePT3/8
- ConfigurationDouble rod
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SED Double Rod Cylinder SED80X50
The AirTAC SED80X50 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 80mm bore and 50mm stroke. Because a rod exits both ends, the annulus area is identical on both sides, generating an equal 2268 N of thrust at 0.5 MPa in both extend and retract directions. It uses a PT3/8 port and a Ø25 mm rod with an M20x1.5 thread.
This unit lacks the -S magnet option, meaning no CMSE or DMSE position sensing on this SKU. The extruded aluminum barrel includes adjustable air cushions at both ends to manage end-of-stroke kinetic energy. The rear rod extension can mount a cam or secondary tooling, offering superior anti-rotation guidance compared to a single-rod SE cylinder.
Airtac SED Double Rod Cylinder SED80X50 Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED80X50 |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø80 mm |
| Stroke | 50 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 SED80X50
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 80 | Bore size in mm. |
| ×50 | 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 SED80X50 Is Used
Multi-Spindle Drill Head
Drives a multi-spindle drill head requiring 2268 N of equal both-way force, using the rear rod end to mount a cam that triggers the feed release.
Pallet Transfer Gate
Actuates a heavy conveyor diverting gate with its 3175 N output at 0.7 MPa, leveraging the twin rods to prevent binding under asymmetric pallet loads.
Web Tensioning Roll
Positions a tensioning roll in a paper mill, utilizing the double-rod symmetry to keep tension perfectly balanced during extend and retract strokes.
Is the Airtac SED Double Rod Cylinder SED80X50 the Right Cylinder?
Choose this 80mm bore if your mechanism requires 2268 N (both directions) at 0.5 MPa, or 3175 N at 0.7 MPa. If you need less force, the 63mm bore provides 1402 N at 0.5 MPa; if you need more, step up to the 100mm bore delivering 3681 N. The twin-rod design is optimal for applications demanding high side-load resistance and dual-end actuation.
Remember that a standard SED does not hold position on air loss—the piston drifts, and the adjustable cushion only decelerates near stroke end rather than locking. For fail-safe holding, consider a BSED rod-lock cylinder. This model is dimensionally interchangeable per ISO 15552 mounting interfaces (Basic, FA, LB, TC, FTC, TCM1, TCM2) and operates at 30-800 mm/s.
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 SED80X50 FAQ
Because the double-rod design has equal piston areas on both sides, it outputs 2268 N at 0.5 MPa and 3175 N at 0.7 MPa in both directions. The maximum force is 463 kgf at 1.0 MPa.
The SED80X50 provides equal extend and retract forces, better side-load resistance, and a rear rod that can drive a secondary mechanism or sensor flag. It is a drop-in ISO 15552 replacement for any matching double-rod profile cylinder.
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