Airtac SED Double Rod Cylinder SED50X240
The AirTAC SED Double Rod Cylinder SED50X240 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 240mm, PT1/4 ports, adjustable cushioning.
- BoreØ50 mm
- Stroke240 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 SED50X240
The AirTAC SED50X240 is a double-acting, double-rod profile cylinder built to the ISO 15552 dimension standard. Because a 20mm rod exits both end covers, the effective piston area is identical on extend and retract. This cylinder delivers exactly 825 N of thrust and pull at 0.5 MPa, ensuring perfectly symmetrical force for dynamic loads.
This 240mm stroke unit features an extruded aluminum barrel without external tie rods, preserving a clean profile. Adjustable air cushions at both ends manage end-of-stroke kinetic energy. Note that this specific SKU lacks a piston magnet, so it cannot host CMSE or DMSE position sensors without modification.
Airtac SED Double Rod Cylinder SED50X240 Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED50X240 |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 240 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 SED50X240
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 50 | Bore size in mm. |
| ×240 | 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 SED50X240 Is Used
Servo-Driven Shuttle Indexing
Drives a precision parts shuttle requiring 825 N of equal force both ways, using the rear rod to mount a physical stopper cam.
Web Guide Straightening
Steers a film web guide mechanism where the twin rods prevent yaw rotation during 240mm stroke corrections at 0.5 MPa.
Dual-Side Synchronized Push-Pull
Actuates a push-pull fixture from both ends simultaneously, leveraging the 1154 N both-way output at 0.7 MPa for balanced clamping.
Is the Airtac SED Double Rod Cylinder SED50X240 the Right Cylinder?
Choose this 50mm bore when an application requires 825 N of equal bidirectional force at 0.5 MPa (1154 N at 0.7 MPa). If your load is lighter, the adjacent 40mm bore provides 528 N both ways. For heavier drives, step up to the 63mm bore, which outputs 1402 N each direction. At 240mm stroke, the extended rod length means you must account for rear-rod clearance and consider external guide rails to prevent side-loading wear on the M16x1.5 rod threads.
The twin-rod design inherently resists torsional rotation, making it superior to a single-rod SE cylinder for multi-axis guidance. Remember that air cushions only decelerate the load near stroke end; they do not hold position pneumatically. For fail-safe load holding on air loss, specify a BSED double-rod lock cylinder or add an external pilot-operated check valve. This cylinder uses a PT1/4 port and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
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 SED50X240 FAQ
Because the double-rod design subtracts the rod area from both sides, force is equal 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.
Yes. The SED50X240 is an ISO 15552 profile cylinder, making it dimensionally interchangeable with any ISO 15552 double-rod unit of the same bore and stroke. It uses a PT1/4 port and M16x1.5 rod thread.
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