Airtac SED Double Rod Cylinder SED50X290S
The AirTAC SED Double Rod Cylinder SED50X290S 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 290mm, PT1/4 ports, adjustable cushioning.
- BoreØ50 mm
- Stroke290 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 SED50X290S
The AirTAC SED50X290S is a double-acting, double-rod profile cylinder built to ISO 15552 dimensional standards. Because a 20mm rod exits both ends, the annulus area is identical on extend and retract, yielding exactly 825N of force each way at 0.5MPa. The extruded aluminum barrel contains no external tie rods, ensuring a clean exterior.
This 50mm bore unit includes an -S magnet for position sensing via CMSE reed or DMSE electronic switches. Field-adjustable air cushions at both ends provide precise deceleration near the 290mm stroke limits. The rear rod extension is ideal for mounting secondary tooling, cams, or limit flags.
Airtac SED Double Rod Cylinder SED50X290S Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED50X290S |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 290 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 SED50X290S
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 50 | Bore size in mm. |
| ×290 | 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 SED50X290S Is Used
CNC Lathe Loading
Drives an automatic bar feeder pusher with 825N of equal both-way force, using the rear rod to trip a physical limit flag for stroke confirmation.
Web Tensioning
Maintains precise bidirectional tension on a film slitter dancer roller, leveraging the twin rods to prevent rotational drift during high-speed spooling.
Transfer Line Ejection
Pushes and pulls machined aluminum brackets between stations simultaneously, utilizing the 30mm adjustable cushions to soften impacts at both 290mm stroke ends.
Is the Airtac SED Double Rod Cylinder SED50X290S the Right Cylinder?
Select this 50mm bore when an application demands 825N of equal bidirectional force at 0.5MPa. If your load requires less force, the 40mm bore provides 528N both ways; if you need more, step up to the 63mm bore for 1402N. The twin-rod design offers superior anti-rotation resistance and dual-side guidance compared to a single-rod SE cylinder. At 290mm stroke, the extended rod length increases leverage, so external load guides are recommended to prevent side-loading wear on the end covers. For ISO 15552 replacements, match the 50mm bore, 290mm stroke, PT1/4 port, and mounting subset (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that a plain SED does not hold position on air loss; for fail-safe holding, use a BSED double-rod lock cylinder.
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 SED50X290S FAQ
Because the double-rod design subtracts the rod area on both sides, the force is equal in both directions: 825N at 0.5MPa, 1154N at 0.7MPa, and a maximum of 168kgf at 1.0MPa.
The twin rods provide identical extend and retract forces, better load guidance against rotation, and a rear rod end for mounting secondary tooling or sensors. It uses the same ISO 15552 mounting interface but omits FB, CA, CB, and CR mounts.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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