Airtac SED Double Rod Cylinder SED50X425
The AirTAC SED Double Rod Cylinder SED50X425 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 425mm, PT1/4 ports, adjustable cushioning.
- BoreØ50 mm
- Stroke425 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 SED50X425
The AirTAC SED50X425 is a double-acting, double-rod profile cylinder built to the ISO 15552 interface. Because a 20mm rod exits both end covers, the effective piston area is identical on extend and retract. This cylinder delivers exactly 825N of thrust and pull force at 0.5 MPa, ensuring perfectly symmetrical motion.
This 50mm bore unit features an extruded aluminum barrel without external tie rods, and includes field-adjustable air cushions at both ends to manage kinetic energy. As this specific SKU lacks the -S magnet option, it does not support CMSE or DMSE position sensing without modification. The rear rod extension is ideal for mounting a secondary cam or tooling fixture.
Airtac SED Double Rod Cylinder SED50X425 Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED50X425 |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 425 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 SED50X425
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 50 | Bore size in mm. |
| ×425 | 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 SED50X425 Is Used
Web Edge Guiding
Uses the equal 825N force both ways to steer material webs accurately without directional force bias, while the rear rod mounts a tracking flag.
Shuttle Transfer
Transfers parts between two stations with symmetrical 425mm travel, relying on the twin rods to prevent the gripper fixture from twisting under load.
Pin Insertion
Presses alignment pins into machined housings using the stable anti-rotation guidance of the dual 20mm rods to maintain tooling perpendicularity.
Is the Airtac SED Double Rod Cylinder SED50X425 the Right Cylinder?
Selecting this 50mm bore provides 825N of equal bidirectional force at 0.5 MPa. If your application requires less force, stepping down to the 40mm bore yields 528N both ways. If you need more power, the 63mm bore provides 1402N. When replacing an ISO 15552 unit, match the 425mm stroke, PT1/4 port, and mounting choice from the available Basic, FA, LB, TC, FTC, TCM1, or TCM2 sets.
At 425mm of travel, the extended rod length increases the lever arm on the guide bearings. Ensure your external load is supported by linear rails to prevent excessive side load and premature wear. Remember that a standard SED does not hold position on air loss; the piston drifts. For fail-safe holding, consider a BSED rod lock cylinder or an external pilot-operated check valve.
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 SED50X425 FAQ
Because the double-rod design subtracts the rod area from both sides, force is equal in both directions. It provides 825N at 0.5 MPa, 1154N at 0.7 MPa, and a maximum of 168kgf at 1.0 MPa.
The twin rods provide superior anti-rotation stability and allow you to mount tooling or a sensor flag on the rear rod end. It is dimensionally interchangeable with other ISO 15552 double-rod cylinders.
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 SED50X425
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.