Airtac SED Double Rod Cylinder SED50X325
The AirTAC SED Double Rod Cylinder SED50X325 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 325mm, PT1/4 ports, adjustable cushioning.
- BoreØ50 mm
- Stroke325 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 SED50X325
The AirTAC SED50X325 is a double-acting, double-rod profile cylinder built to the ISO 15552 interface. Because a 20 mm rod exits both end covers, the annulus area is identical on extend and retract. It yields 825 N of force each way at 0.5 MPa, preventing directional force imbalance.
This extruded aluminum barrel omits external tie rods and provides field-adjustable air cushioning at both ends to decelerate the load before impact. This specific SKU lacks the -S magnet option, meaning no CMSE reed or DMSE electronic position sensors can be mounted directly in the barrel groove.
Airtac SED Double Rod Cylinder SED50X325 Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED50X325 |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 325 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 SED50X325
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 50 | Bore size in mm. |
| ×325 | 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 SED50X325 Is Used
Transfer Pusher
Drives a 325 mm transfer pusher on a packaging line, using the balanced 825 N both-way force to shuttle cartons without kickback force.
Indexing Drum
Actuates an indexing drum where the rear rod end mounts a cam, leveraging twin-rod anti-rotation to keep the drum orientation exact.
Web Edge Guide
Positions a web edge guide in a paper mill, using the protruding rear rod to connect a tensioner while maintaining 1154 N at 0.7 MPa.
Is the Airtac SED Double Rod Cylinder SED50X325 the Right Cylinder?
Choose this 50 mm bore if your mechanism needs 825 N both ways at 0.5 MPa. Step down to the 40 mm bore for 528 N, or up to the 63 mm bore for 1402 N, both at 0.5 MPa. A twin-rod design suits applications needing rear-rod tooling, a cam flag, or superior anti-rotation guidance compared to a single-rod SE cylinder.
At 325 mm stroke, the extended rod length demands external linear guides to handle side loads and prevent binding. A plain SED does not hold position on air loss; the piston drifts. For fail-safe holding, select a BSED double-rod rod lock cylinder. To replace an ISO 15552 unit, match the 50 mm bore, 325 mm stroke, PT1/4 port, and mounting (Basic, FA, LB, TC, FTC, TCM1, or 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 SED50X325 FAQ
Because the double-rod design has equal piston areas on both sides, it generates 825 N at 0.5 MPa, 1154 N at 0.7 MPa, and a maximum of 168 kgf at 1.0 MPa in both directions.
The twin rods provide equal force both ways and better resist load rotation. The rear rod can drive a secondary mechanism or sensor flag. It drops into any ISO 15552 footprint but omits FB, CA, CB, and CR mountings.
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 SED50X325
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.