Airtac SED Double Rod Cylinder SED50X65S
The AirTAC SED Double Rod Cylinder SED50X65S 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 65mm, PT1/4 ports, adjustable cushioning.
- BoreØ50 mm
- Stroke65 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 SED50X65S
The AirTAC SED50X65S is a double-acting, double-rod profile cylinder fully dimensionally interchangeable per ISO 15552 / VDMA 24562. Because a 20mm rod occupies both sides of the 50mm piston, the effective annulus area is identical in both directions, yielding an equal force of 825 N each way at 0.5 MPa. The extruded aluminum barrel contains no external tie rods, and adjustable air cushions at both ends decelerate the load near stroke end.
This specific configuration includes the -S magnet option for electronic DMSE or reed CMSE sensors, enabling dual-side position tracking. The rear rod extension can drive a secondary mechanism or mount a cam, while the twin 20mm rods provide superior anti-rotation guidance compared to a single-rod SE cylinder. It uses a standard PT1/4 port and M16x1.5 rod-end thread.
Airtac SED Double Rod Cylinder SED50X65S Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED50X65S |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 65 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 SED50X65S
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 50 | Bore size in mm. |
| ×65 | 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 SED50X65S Is Used
Printed Circuit Board Lifters
Drives lifting arms in PCB handling machines where the twin 20mm rods prevent binding and the 825N both-way force securely raises and lowers delicate panels without rotation.
Pneumatic Gripper Slides
Powers a synchronized transfer slide in packaging equipment, using the rear rod to trigger a DMSE electronic sensor and providing 1154N at 0.7 MPa for crisp part ejection.
Textile Web Guides
Actuates a web-guiding mechanism in textile machinery, leveraging the equal extend and retract speeds to maintain tension control across the fabric feed.
Is the Airtac SED Double Rod Cylinder SED50X65S the Right Cylinder?
Select this 50mm bore when an application requires 825 N of equal bidirectional force at 0.5 MPa. If your load is lighter, the 40mm bore provides 528 N both ways; for heavier drives, step up to the 63mm bore which provides 1402 N both ways. The double-rod design is preferred over a single-rod SE when the mechanism needs to resist torsional side loads, support a rear-mounted tooling flag, or synchronize a secondary motion from the back end.
When replacing an existing ISO 15552 cylinder, match the 50mm bore, 65mm stroke, PT1/4 port, and mounting style (Basic, FA, LB, TC, FTC, TCM1, or TCM2). Note that a plain SED does not hold position on air loss—the piston drifts, and the adjustable cushion is not a brake. For fail-safe holding, use a BSED double-rod lock or external pilot-operated check valve. At 65mm stroke, side loads are minimal, but external guides are recommended for heavy lateral loads.
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 SED50X65S FAQ
Because the double-rod design has equal piston areas on both sides, the force is identical in both directions: 825 N at 0.5 MPa, 1154 N at 0.7 MPa, and a maximum of 168 kgf at 1.0 MPa.
The SED provides equal force and speed in both directions, and the twin 20mm rods offer superior anti-rotation guidance. The protruding rear rod is ideal for mounting a cam or driving a secondary mechanism, and it is dimensionally interchangeable per ISO 15552.
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