Airtac SED Double Rod Cylinder SED50X40
The AirTAC SED Double Rod Cylinder SED50X40 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 40mm, PT1/4 ports, adjustable cushioning.
- BoreØ50 mm
- Stroke40 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 SED50X40
The AirTAC SED50X40 is a double-acting, double-rod ISO 15552 profile cylinder with a 50mm bore and 40mm stroke. Because a rod exits both end covers, the annulus area is identical on extend and retract, yielding an equal force of 825 N each way at 0.5 MPa. The extruded aluminum barrel contains no external tie rods, ensuring a clean, dimensionally interchangeable ISO 15552 footprint.
This unit lacks the standard magnet option, meaning it cannot host CMSE or DMSE position sensors without modification. It features field-adjustable air cushioning at both ends (30mm cushion length) to decelerate loads near stroke end. The rear rod extension can mount a secondary tool or cam, while the twin 20mm rods provide superior anti-rotation guidance compared to a single-rod SE cylinder.
Airtac SED Double Rod Cylinder SED50X40 Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED50X40 |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 40 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 SED50X40
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 50 | Bore size in mm. |
| ×40 | 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 SED50X40 Is Used
PCB Stencil Wiping
Drives a dual-sided squeegee assembly with 825N of equal force, using the twin rods to prevent blade yaw during 40mm travel.
Indexing Shuttle
Shifts a parts carrier between two stops where the rear rod simultaneously trips an external mechanical flag.
Gripper Actuation
Powers a synchronized clamping mechanism where equal push and pull forces ensure balanced tension on the workpiece.
Is the Airtac SED Double Rod Cylinder SED50X40 the Right Cylinder?
Selecting this 50mm bore provides 825 N of both-way force at 0.5 MPa. If your load is lighter, the 40mm bore offers 528 N; if you need more push, the 63mm bore provides 1402 N. The twin rods excel at driving loads that resist twisting, or where a rear-rod flag must trip an external limit switch.
As a plain SED without a magnet, this SKU offers no position feedback. Remember that an SED does not hold position on air loss—the piston drifts. For fail-safe holding, use a BSED double-rod rod lock or an external pilot-operated check valve. To replace an existing ISO 15552 cylinder, match the 40mm stroke, PT1/4 port, and choose from Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounts (FB/CA/CB/CR are omitted).
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 SED50X40 FAQ
Because the double-rod design has equal piston areas on both sides, it delivers 825 N of force at 0.5 MPa, 1154 N at 0.7 MPa, and a maximum of 168 kgf at 1.0 MPa in both extend and retract directions.
Yes. The SED50X40 is a true ISO 15552 profile cylinder, making it dimensionally interchangeable with any standard ISO 15552 double-rod cylinder of the same bore and stroke. Just ensure your mounting style is Basic, FA, LB, TC, FTC, TCM1, or TCM2.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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