Airtac SED Double Rod Cylinder SED40X350
The AirTAC Airtac SED Double Rod Cylinder SED40X350 is a genuine double-acting ISO 15552 double-rod cylinder: a Ø16mm piston rod exits BOTH ends of the Ø40mm bore, giving equal force and speed in both directions and letting you mount tooling or a sensor flag on the back rod. Stroke 350mm, PT1/4 ports, adjustable cushioning.
- BoreØ40 mm
- Stroke350 mm
- Port sizePT1/4
- ConfigurationDouble rod
- Rod threadM12×1.25
- 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 SED40X350
The AirTAC SED40X350 is a double-acting, double-rod profile cylinder operating on the ISO 15552 interface. A 16mm rod extends from both end covers, yielding identical annulus areas. This means you get 528 N of output force at 0.5 MPa in both extend and retract directions.
This SKU has no internal magnet, so it will not trigger CMSE or DMSE sensors. The extruded aluminum barrel lacks external tie rods, and field-adjustable air cushions at both ends absorb kinetic energy near the stroke limits. Remember to leave rear-rod clearance for the 350mm protrusion.
Airtac SED Double Rod Cylinder SED40X350 Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED40X350 |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 350 mm |
| Configuration | Double rod, double acting |
| Port size | PT1/4 |
| Rod thread | M12×1.25 |
| 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 (Ø40mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa | 739 N |
| Max (@1.0 MPa) | 108 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 SED40X350
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 40 | Bore size in mm. |
| ×350 | 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 SED40X350 Is Used
PCB Edge Guiding
Uses the 528 N both-way force to positively center and release electronic panels without rotational drift during conveyor transfer.
Film Web Tracking
Leverages the twin 16mm rods to push and pull a dancer roller frame with equal 0.5 MPa tension on both stroke faces.
Dual-Side Clamping
Drives opposing grippers simultaneously from the rear rod end while the front rod secures the part, ensuring synchronous 350mm travel.
Is the Airtac SED Double Rod Cylinder SED40X350 the Right Cylinder?
Choose this 40mm bore if you need 528 N of equal bidirectional force at 0.5 MPa. Stepping down to the 32mm bore drops output to 345 N, while moving up to the 50mm bore raises it to 825 N. The twin rods provide superior anti-rotation resistance and allow driving a secondary mechanism from the rear.
Because this is a 350mm stroke, external guide rails are recommended to prevent side-loading damage to the M12x1.25 rod threads. A plain SED does not hold position upon air loss; for fail-safe locking, select a BSED double-rod rod lock cylinder. For ISO 15552 drop-in replacement, match the 40mm bore, 350mm stroke, PT1/4 port, and mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
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 SED40X350 FAQ
Because the rod exits both ends, force is equal in both directions. It provides 528 N at 0.5 MPa, 739 N at 0.7 MPa, and a maximum of 108 kgf at 1.0 MPa.
No, a standard SED cylinder will drift on air loss. The adjustable air cushion only decelerates the piston near stroke end; it is not a braking device. For fail-safe holding, use a BSED rod lock cylinder.
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