Airtac SED Double Rod Cylinder SED80X500S
The AirTAC Airtac SED Double Rod Cylinder SED80X500S 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 500mm, PT3/8 ports, adjustable cushioning.
- BoreØ80 mm
- Stroke500 mm
- Port sizePT3/8
- ConfigurationDouble rod
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SED Double Rod Cylinder SED80X500S
The AirTAC SED80X500S is a double-acting, double-rod profile cylinder built to ISO 15552 dimensional standards. Because a Ø25 mm rod extends from both end covers, the effective piston area is identical on extend and retract. This generates an equal force of 2268 N each way at 0.5 MPa, eliminating speed discrepancies between strokes.
Equipped with a standard magnet (-S), this 80 mm bore unit supports CMSE reed and DMSE electronic sensors for end-of-stroke detection. The extruded aluminum barrel omits external tie rods, while adjustable air cushions at both ends absorb kinetic energy over the 36 mm cushion length to prevent endcap impact.
Airtac SED Double Rod Cylinder SED80X500S Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED80X500S |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø80 mm |
| Stroke | 500 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 SED80X500S
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 80 | Bore size in mm. |
| ×500 | 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 SED80X500S Is Used
Web Guiding Mechanism
Drives opposing guide rollers simultaneously. The twin rods ensure perfectly parallel tracking across a 500 mm span, utilizing the 2268 N equal both-way force to tension film or foil without skewing.
Pallet Transfer Pusher
Shifts heavy pallets laterally between conveyors. The rear rod protrudes to trigger a DMSE electronic sensor, confirming the 500 mm extend stroke is complete before the lift engages.
Multi-Spindle Drill Head
Lowers and raises a precision machining head. The dual-rod configuration provides the necessary anti-rotation resistance to keep the drill block perfectly aligned during the 500 mm vertical plunge.
Is the Airtac SED Double Rod Cylinder SED80X500S the Right Cylinder?
When sizing this 80 mm bore, stepping down to the 63 mm bore yields 1402 N each way at 0.5 MPa, while stepping up to the 100 mm bore provides 3681 N. Choose this double-rod SED over a single-rod SE when your mechanism requires dual-side guidance, rear-rod tooling, or strict anti-rotation resistance. The rear protruding rod can drive a secondary mechanism or mount a physical limit flag.
For a 500 mm stroke, external load guides are recommended to prevent side-loading damage to the M20x1.5 rod threads and seals. Note that the adjustable cushion decelerates the load but does not lock it; a plain SED drifts on air loss, so specify a BSED or external rod lock for fail-safe holding. Replacement requires matching the 500 mm stroke, PT3/8 port, and mounting style (Basic, FA, LB, TC, FTC, TCM1, or TCM2).
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 SED80X500S FAQ
Because the rod occupies both sides of the piston, force is equal in both directions. This 80 mm bore cylinder outputs 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 load guidance and anti-rotation resistance. It also allows you to mount tooling, cams, or sensors on the rear rod end, making it ideal for synchronized mechanisms requiring a true ISO 15552 drop-in replacement.
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