Airtac SED Double Rod Cylinder SED80X550SH
The AirTAC Airtac SED Double Rod Cylinder SED80X550SH 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 550mm, PT3/8 ports, adjustable cushioning.
- BoreØ80 mm
- Stroke550 mm
- Port sizePT3/8
- ConfigurationDouble rod
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SED Double Rod Cylinder SED80X550SH
The AirTAC SED80X550SH is a double-acting, double-rod profile cylinder built to ISO 15552 dimensional standards. A 25mm rod exits both end covers, yielding equal effective areas. This provides 2268N of thrust and pull force each way at 0.5MPa. The extruded aluminum barrel lacks external tie rods for a clean profile.
Configured with an S magnet and FKM Viton seals, it operates in temperatures up to 150C. The rear rod extension is perfect for mounting a cam or DMSE electronic sensor to track position from the back side. Field-adjustable air cushions at both ends absorb impact near stroke limits.
Airtac SED Double Rod Cylinder SED80X550SH Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED80X550SH |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø80 mm |
| Stroke | 550 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 SED80X550SH
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 80 | Bore size in mm. |
| ×550 | 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 SED80X550SH Is Used
Injection Mold Ejection
Drives a mold ejection plate with 2268N both ways, using the rear rod to trip a limit switch for timing confirmation.
Pallet Diverters
Pushes heavy pallets on a sorting line where the twin rods prevent the pusher head from twisting under side loads.
Textile Calendering
Handles high-temperature fabric calendering rollers using FKM Viton seals rated for 150C environments.
Is the Airtac SED Double Rod Cylinder SED80X550SH the Right Cylinder?
Choose this 80mm bore to output 2268N both ways at 0.5MPa. If you need less force, step down to the 63mm bore delivering 1402N both ways. If your application demands more power, the 100mm bore provides 3681N both ways. The twin-rod design inherently resists torsion better than a single-rod SE cylinder, guiding heavy loads without twisting.
At 550mm stroke, the 25mm rod needs external support guides to prevent binding and premature seal wear. This SED80X550SH is a drop-in replacement for any ISO 15552 double-rod cylinder matching its PT3/8 port and Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting footprint. Note that air cushions only decelerate the load; they do not hold position on air loss. For fail-safe holding, use a BSED 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 SED80X550SH FAQ
Because the double-rod design has equal piston areas on both sides, force is identical in extend and retract. It generates 2268N at 0.5MPa, 3175N at 0.7MPa, and a maximum of 463kgf at 1.0MPa.
The twin rods provide equal force and speed in both directions while resisting rotational torque. The protruding rear rod allows you to mount a cam or CMSE reed sensor to monitor the opposite end of the mechanism.
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