Airtac SED Double Rod Cylinder SED50X475S
The AirTAC SED Double Rod Cylinder SED50X475S 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 475mm, PT1/4 ports, adjustable cushioning.
- BoreØ50 mm
- Stroke475 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 SED50X475S
The AirTAC SED50X475S is a double-acting, double-rod profile cylinder built to ISO 15552 dimensions. Because a 20mm rod exits both end covers, the annulus area is identical on each side. This means you get exactly 825 N of output force at 0.5 MPa in both extend and retract directions. The extruded aluminum barrel has no external tie rods, ensuring a clean profile that drops in for any ISO 15552 footprint.
Equipped with a standard magnet (-S), this unit supports CMSE reed and DMSE electronic sensors for end-of-stroke detection. The rear rod extension is perfect for mounting a cam or limit flag to trigger secondary operations. Field-adjustable air cushions at both ends absorb kinetic energy near the stroke limits, protecting your machinery.
Airtac SED Double Rod Cylinder SED50X475S Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED50X475S |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 475 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 SED50X475S
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 50 | Bore size in mm. |
| ×475 | 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 SED50X475S Is Used
Web Guiding Mechanism
Drives a pivoting roller assembly in a film converting line. The twin rods prevent binding across the 475mm travel, while the 825 N force maintains steady tension control.
Dual-Action Transfer Shuttle
Moves PCB panels between inspection stations. The rear rod end mounts a physical cam to trigger a pneumatic valve, sequencing the next machine action without extra sensors.
Lifting Fork Assembly
Raises and lowers a lightweight parts tray in an assembly cell. Equal both-way force ensures smooth descent without overshoot, aided by the adjustable air cushions.
Is the Airtac SED Double Rod Cylinder SED50X475S the Right Cylinder?
Selecting this 50mm bore gives you 825 N both-way force at 0.5 MPa. If you need less power, step down to the 40mm bore providing 528 N; if your payload is heavier, step up to the 63mm bore yielding 1402 N. The twin-rod design is chosen over a single-rod SE cylinder when the load requires strict anti-rotation guidance or dual-side actuation. With a 475mm stroke, the 20mm rod protruding from the rear requires clearance, and you should use external guides to prevent side-loading damage.
For ISO 15552 replacement matching, verify the 475mm stroke, PT1/4 port, and your mounting choice (Basic, FA, LB, TC, FTC, TCM1, or TCM2). Note that a plain SED does not hold position on air loss; the piston will drift. For fail-safe holding, use an external rod lock or 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 SED50X475S FAQ
Because it is a double-rod cylinder, the force is identical in both directions. It provides 825 N at 0.5 MPa, 1154 N at 0.7 MPa, and a maximum of 168 kgf at 1.0 MPa.
The twin rods provide superior anti-rotation resistance and allow the rear rod to drive a secondary mechanism or sensor flag. It also ensures the effective piston area, and thus the output force, is perfectly equal on extend and retract.
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