Airtac SED Double Rod Cylinder SED80X155
The AirTAC Airtac SED Double Rod Cylinder SED80X155 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 155mm, PT3/8 ports, adjustable cushioning.
- BoreØ80 mm
- Stroke155 mm
- Port sizePT3/8
- ConfigurationDouble rod
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SED Double Rod Cylinder SED80X155
The AirTAC SED80X155 is a double-acting, double-rod ISO 15552 profile cylinder with a 80 mm bore and 155 mm stroke. Because a 25 mm rod exits both end covers, the effective piston area is identical in extend and retract, yielding an equal 2268 N of thrust each way at 0.5 MPa. The extruded aluminum barrel contains no external tie rods, ensuring a clean ISO 15552 dimensional interchange footprint.
This unit lacks the -S magnet option, meaning it carries no onboard position sensor on this SKU. You can mount a cam or flag on the rear rod end to trigger external limits, while the twin-rod geometry actively resists load rotation. Adjustable air cushioning at 36 mm length on both ends decelerates the piston near stroke end, though it will not hold position on air loss.
Airtac SED Double Rod Cylinder SED80X155 Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED80X155 |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø80 mm |
| Stroke | 155 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 SED80X155
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 80 | Bore size in mm. |
| ×155 | 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 SED80X155 Is Used
Servo Press Peening
Drives an automotive peening head where the twin 25 mm rods prevent torque twist, delivering a balanced 2268 N strike force in both extend and retract motions.
Pallet Diverters
Shifts heavy pallets on a packaging line; the rear rod protrudes to operate a mechanical flag, while the cylinder pushes and pulls equal 2268 N loads without speed variation.
Web Guiding Mechanisms
Positions heavy film rollers in a converting plant, using the double-rod profile to guide the web evenly and resist rotational binding under high side loads.
Is the Airtac SED Double Rod Cylinder SED80X155 the Right Cylinder?
When sizing this 80 mm bore, note the 63 mm option provides 1402 N each way at 0.5 MPa, while the 100 mm bore steps up to 3681 N. Choose this double-rod SED over a single-rod SE when your mechanism requires dual-side guidance, anti-rotation stability, or rear-rod tooling. A plain SED does not hold position on air loss; the piston drifts, so specify a BSED double-rod rod lock or external pilot-operated check valve for fail-safe holding. To drop-in replace an ISO 15552 cylinder, match the 155 mm stroke, PT3/8 port, and mounting subset (Basic, FA, LB, TC, FTC, TCM1, TCM2). Since the stroke is under 300 mm, side-load stress is manageable, but always guide the load externally for optimal bearing life.
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 SED80X155 FAQ
The SED80X155 provides equal force in both directions because the 25 mm rod occupies both sides of the piston. It delivers 2268 N at 0.5 MPa, 3175 N at 0.7 MPa, and a maximum of 463 kgf at 1.0 MPa.
A double-rod profile cylinder offers equal extend and retract speeds and forces. The protruding rear rod allows mounting a cam or secondary tool, and the twin-rod design provides superior anti-rotation guidance for the load compared to a single-rod SE cylinder.
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