Airtac SED Double Rod Cylinder SED50X400
The AirTAC Airtac SED Double Rod Cylinder SED50X400 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 400mm, PT1/4 ports, adjustable cushioning.
- BoreØ50 mm
- Stroke400 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 SED50X400
The AirTAC SED50X400 is a double-acting, double-rod profile cylinder built to ISO 15552 dimensional standards. Because a 20mm rod exits both end covers, the annulus area is identical on extend and retract. It generates 825 N of force each way at 0.5 MPa, ensuring perfectly balanced motion for demanding transfer tasks.
This 400mm stroke unit features an extruded aluminum barrel without external tie rods, operating at speeds from 30-800 mm/s. It includes field-adjustable air cushioning at both ends. Note this specific SKU lacks a magnet (-S), so it cannot host CMSE or DMSE position sensors without modification.
Airtac SED Double Rod Cylinder SED50X400 Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED50X400 |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 400 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 SED50X400
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 50 | Bore size in mm. |
| ×400 | 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 SED50X400 Is Used
Pallet Transfer Pusher
Drives a 400mm stroke pusher on an assembly line, using the balanced 825 N force to shift workloads consistently without speed variations between extend and retract.
Web Edge Guiding
Uses the twin-rod anti-rotation properties to steer material webs accurately, preventing deflection across the long 400mm travel while maintaining precise tracking.
Dual-Side Gripper Actuation
Simultaneously drives opposing grippers via the front and rear M16x1.5 rod ends, synchronizing clamping force perfectly at 1154 N at 0.7 MPa.
Is the Airtac SED Double Rod Cylinder SED50X400 the Right Cylinder?
Choose this 50mm bore when you need 825 N of bidirectional force at 0.5 MPa. If your application is lighter, stepping down to the 40mm bore yields 528 N both ways. For heavier loads, the 63mm bore provides 1402 N. The twin-rod design offers superior anti-rotation stability compared to a single-rod SE cylinder, allowing you to mount a rear cam or secondary actuator.
At 400mm of stroke, the extended rod length demands external guide rails to prevent side-loading damage to the M16x1.5 rod threads and front cover. A plain SED does not hold position upon air loss; the piston drifts, as the adjustable cushion only decelerates near stroke end. For fail-safe holding, use an external pilot-operated check valve or a BSED rod-lock cylinder. Ensure you match the PT1/4 port and ISO 15552 mounting interface (Basic, FA, LB, TC, FTC, TCM1, TCM2) for a direct replacement.
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 SED50X400 FAQ
The SED50X400 provides equal force in both directions because of the double-rod design. It outputs 825 N at 0.5 MPa, 1154 N at 0.7 MPa, and a maximum of 168 kgf at 1.0 MPa.
Yes. It is an ISO 15552 profile cylinder with a standard mounting footprint (Basic, FA, LB, TC, FTC, TCM1, TCM2). Just match the PT1/4 ports, 50mm bore, and 400mm stroke. Remember to leave clearance for the rear rod protrusion.
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 SED50X400
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.