Airtac SED Double Rod Cylinder SED50X25
The AirTAC SED Double Rod Cylinder SED50X25 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 25mm, PT1/4 ports, adjustable cushioning.
- BoreØ50 mm
- Stroke25 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 SED50X25
The AirTAC SED50X25 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 50mm bore and 25mm stroke. Because a rod exits both end covers, the effective piston area is identical in both directions. This means you get exactly 825 N of force at 0.5 MPa on both extend and retract strokes. The extruded aluminum barrel contains no external tie rods, ensuring a clean profile that drops in dimensionally for any ISO 15552 footprint.
This specific SKU ships without a magnet (-S), so it cannot host CMSE or DMSE position sensors directly. However, the rear rod extension is fully exposed and available to mount a cam, external limit flag, or secondary tooling. Adjustable air cushions at both ends provide tunable deceleration near stroke end, protecting your compact 25mm stroke mechanism from impact shock.
Airtac SED Double Rod Cylinder SED50X25 Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED50X25 |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 25 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 SED50X25
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 50 | Bore size in mm. |
| ×25 | 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 SED50X25 Is Used
Web Guide Mechanisms
Drives opposing steering rollers with its twin rods to correct film or paper web alignment, utilizing the equal 825 N force both ways for precise centering.
Compact Component Transfer
Handles small electronic parts across a 25mm short stroke, where the rear rod simultaneously actuates a secondary ejector pin without needing a second cylinder.
Shuttle Conveyor Diverters
Powers a diverter gate that must push left and right equally. The double-rod prevents torsional binding that a single rod would suffer under offset loads.
Is the Airtac SED Double Rod Cylinder SED50X25 the Right Cylinder?
Select this 50mm bore when your mechanism requires exactly 825 N of both-way thrust at 0.5 MPa. If your load is lighter, step down to the 40mm bore for 528 N; if heavier, step up to the 63mm bore for 1402 N. The twin-rod design is essential when you need to drive two mechanisms in opposing directions simultaneously, or when a single rod cannot provide sufficient anti-rotation guidance for the load. Remember that a plain SED cylinder does not hold position on air loss—the piston will drift. For fail-safe holding, specify a BSED double-rod rod lock or use an external pilot-operated check valve. When replacing an ISO 15552 cylinder, match the 50mm bore, 25mm stroke, PT1/4 port, and mounting choice (Basic, FA, LB, TC, FTC, TCM1, or TCM2—note this series omits FB, CA, CB, and CR).
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 SED50X25 FAQ
Because the double-rod design subtracts the rod area from both sides of the piston, force is equal in both directions. It delivers 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 guidance for the load and allow you to mount tooling, a cam, or a flag on the rear rod end. It also ensures the speed and force are perfectly balanced in both directions, which a single-rod SE cannot achieve.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SED Cylinders
Request a Quote for Airtac SED Double Rod Cylinder SED50X25
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.