Airtac SED Double Rod Cylinder SED50X500S
The AirTAC SED Double Rod Cylinder SED50X500S is a genuine double-acting ISO 15552 double-rod cylinder: a Ø20mm piston rod exits BOTH ends of the Ø50mm bore, giving equal force and speed in both directions and letting you mount tooling or a sensor flag on the back rod. Stroke 500mm, PT1/4 ports, adjustable cushioning.
- BoreØ50 mm
- Stroke500 mm
- Port sizePT1/4
- ConfigurationDouble rod
- Rod threadM16×1.5
- CushionAdjustable, 30 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SED Double Rod Cylinder SED50X500S
The AirTAC SED50X500S is a double-acting, double-rod profile cylinder conforming to the ISO 15552 interface. Because a 20mm rod exits both end covers, the annulus area is symmetrical, yielding an equal 825 N of thrust in both extend and retract directions at 0.5 MPa. The extruded aluminum barrel omits external tie rods, and the -S option equips the piston with a magnet for DMSE electronic or CMSE reed sensors.
This 50mm bore model features a 500mm stroke and PT1/4 ports. Field-adjustable air cushioning at both ends manages deceleration near stroke extremes, while the twin-rod design provides superior anti-rotation guidance for demanding loads.
Airtac SED Double Rod Cylinder SED50X500S Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED50X500S |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 500 mm |
| Configuration | Double rod, double acting |
| Port size | PT1/4 |
| 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, 30 mm |
| Max stroke | Up to 1200 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 (Ø50mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 825 N |
| 0.7 MPa | 1155 N |
| Max (@1.0 MPa) | 168 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 SED50X500S
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 50 | 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 SED50X500S Is Used
Web Guiding Mechanism
Provides 825 N of equal both-way force to steer material webs, using the rear rod to mount a tracking cam for precise edge alignment.
Dual-Side Pallet Transfer
Drives a 500mm stroke transfer carriage with twin rods preventing load rotation during heavy pallet shifts on packaging lines.
Shuttle Valve Actuation
Delivers symmetrical push/pull forces to cycle large process valves, ensuring consistent seating torque in both directions.
Is the Airtac SED Double Rod Cylinder SED50X500S the Right Cylinder?
At 0.5 MPa, this 50mm bore outputs 825 N both ways. If your drive force is insufficient, stepping up to the 63mm bore yields 1402 N; conversely, dropping to the 40mm bore provides 528 N. The twin-rod architecture is preferred over a single-rod SE when a rear rod is needed to mount a cam, drive a secondary mechanism, or when rigid anti-rotation guidance is required.
For a 500mm stroke, external guide rails are strongly recommended to prevent side-load deflection on the 20mm rods. A standard SED50X500S does not hold position on air loss; the piston drifts. For fail-safe holding, select a BSED double-rod lock cylinder or integrate an external pilot-operated check valve. As a true ISO 15552 cylinder, it drops in for any matching 50mm bore, 500mm stroke, PT1/4 port, and Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting footprint.
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 SED50X500S FAQ
The SED50X500S provides equal force in both directions due to the double-rod design: 825 N at 0.5 MPa, 1154 N at 0.7 MPa, and a maximum of 168 kgf at 1.0 MPa.
The twin-rod design ensures equal extend and retract forces, offers better load guidance against rotation, and provides a rear rod extension for mounting secondary tooling or sensors.
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