Airtac SED Double Rod Cylinder SED80X70
The AirTAC Airtac SED Double Rod Cylinder SED80X70 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 70mm, PT3/8 ports, adjustable cushioning.
- BoreØ80 mm
- Stroke70 mm
- Port sizePT3/8
- ConfigurationDouble rod
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SED Double Rod Cylinder SED80X70
The AirTAC SED80X70 is a double-acting, double-rod ISO 15552 profile cylinder engineered for symmetrical load handling. A single piston drives a Ø25 mm rod out of both end covers, yielding identical annulus areas. Consequently, output force is perfectly balanced at 2268 N in both extend and retract directions at 0.5 MPa.
This unit features a PT3/8 port and field-adjustable air cushioning at both ends (36 mm stroke) to manage deceleration. The extruded aluminum barrel lacks external tie rods, ensuring a clean ISO 15552 footprint. The protruding rear rod can mount a secondary mechanism or cam, while the standard configuration omits the -S magnet, meaning no CMSE or DMSE position sensors are installed on this SKU.
Airtac SED Double Rod Cylinder SED80X70 Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED80X70 |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø80 mm |
| Stroke | 70 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 SED80X70
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 80 | Bore size in mm. |
| ×70 | 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 SED80X70 Is Used
Servo-Press Transfer Arms
Drives transfer arms in stamping lines using its 2268 N both-way force, leveraging the rear rod to mount a synchronized cam without needing a separate actuator.
Pallet Diverters
Pushes heavy pallets laterally on packaging conveyors, utilizing the twin-rod design to prevent binding and resist rotational torque during heavy loads.
Web Guiding Mechanisms
Adjusts paper or film web tensioners symmetrically, where the equal extend and retract forces ensure perfectly balanced material handling.
Is the Airtac SED Double Rod Cylinder SED80X70 the Right Cylinder?
Selecting this 80 mm bore provides 2268 N of thrust both ways at 0.5 MPa (scaling to 3175 N at 0.7 MPa). If your mechanism requires less force, step down to the 63 mm bore, which yields 1402 N both ways. For heavier tooling, the 100 mm bore provides 3681 N. Choose this double-rod SED over a single-rod SE when your application demands superior anti-rotation stability, dual-side guidance, or a rear rod to drive a secondary cam. For a drop-in replacement, match the 80 mm bore, 70 mm stroke, PT3/8 port, and mounting interface (Basic, FA, LB, TC, FTC, TCM1, or TCM2). Note that a plain SED will drift on air loss; for fail-safe holding, use a BSED double-rod lock cylinder or an external rod lock.
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 SED80X70 FAQ
Because the double-rod design creates equal piston 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 double-rod SED provides superior anti-rotation guidance and allows the rear rod to drive a secondary mechanism or sensor flag. It is dimensionally interchangeable per ISO 15552, but omits FB, CA, CB, and CR mounting options.
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