Airtac SED Double Rod Cylinder SED63X900S
The AirTAC Airtac SED Double Rod Cylinder SED63X900S is a genuine double-acting ISO 15552 double-rod cylinder: a Ø20mm piston rod exits BOTH ends of the Ø63mm bore, giving equal force and speed in both directions and letting you mount tooling or a sensor flag on the back rod. Stroke 900mm, PT3/8 ports, adjustable cushioning.
- BoreØ63 mm
- Stroke900 mm
- Port sizePT3/8
- ConfigurationDouble rod
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SED Double Rod Cylinder SED63X900S
The AirTAC SED63X900S is a double-acting, double-rod ISO 15552 profile cylinder. A 20mm rod exits both end covers, yielding equal effective areas. This makes output force identical in extend and retract, delivering 1402N each way at 0.5MPa. The integrated -S magnet enables position tracking using CMSE reed or DMSE electronic sensors.
Because a rod protrudes from the rear cover, you can mount a cam or secondary mechanism on the opposite end. The extruded aluminum barrel omits external tie rods, and adjustable air cushioning at both ends decelerates the piston near stroke limits. Remember to leave rear-rod clearance, as overall length exceeds a single-rod SE cylinder.
Airtac SED Double Rod Cylinder SED63X900S Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED63X900S |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø63 mm |
| Stroke | 900 mm |
| Configuration | Double rod, double acting |
| Port size | PT3/8 |
| Rod thread | M16×1.5 |
| 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 (Ø63mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 1402 N |
| 0.7 MPa | 1962 N |
| Max (@1.0 MPa) | 286 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 SED63X900S
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 63 | Bore size in mm. |
| ×900 | 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 SED63X900S Is Used
Long-Travel Transfer Gates
Drives 900mm diverter gates on packaging lines, utilizing the 1962N both-way force to push and pull heavy carton flows without rotational deflection.
Tandem CNC Loaders
Uses the rear rod end to mount a cam for sequencing, while the front rod loads parts into a machining center with precise anti-rotation guidance.
Textile Beam Indexing
Shifts heavy textile beams between processing stations, relying on the equal extend and retract forces to maintain consistent tension across the 900mm travel.
Is the Airtac SED Double Rod Cylinder SED63X900S the Right Cylinder?
The 63mm bore provides 1962N both-way force at 0.7MPa. Stepping down to the 50mm bore yields 1154N, while stepping up to the 80mm bore provides 3175N at the same pressure. Choose this double-rod unit over a single-rod SE when your application requires anti-rotation stability, dual-side guidance, or rear-rod tooling. For a drop-in replacement, match the 900mm stroke, PT3/8 port, and mounting interface.
At 900mm stroke, the extended rod is highly susceptible to side loads. You must use external guides to prevent binding and premature seal wear. A plain SED does not hold position on air loss; the piston drifts. For fail-safe holding, use a BSED double-rod rod lock or an external pilot-operated check valve.
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 SED63X900S FAQ
Because the double-rod design has equal piston areas on both sides, force is identical in both directions. It provides 1402N at 0.5MPa, 1962N at 0.7MPa, and a maximum of 286kgf at 1.0MPa.
A double-rod cylinder offers better load stability and prevents rotation during travel. The protruding rear rod allows you to mount a secondary mechanism or sensor cam, and it maintains equal force and speed in both directions.
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