Airtac SED Double Rod Cylinder SED50X350
The AirTAC Airtac SED Double Rod Cylinder SED50X350 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 350mm, PT1/4 ports, adjustable cushioning.
- BoreØ50 mm
- Stroke350 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 SED50X350
The AirTAC SED50X350 is a double-acting, double-rod profile cylinder dimensionally interchangeable per ISO 15552. A 20mm rod exits both ends, yielding identical annulus areas so extend and retract forces match exactly at 825 N each way at 0.5 MPa.
This 50mm bore unit features an extruded aluminum barrel without external tie rods and field-adjustable air cushions at both ends. This SKU lacks the -S magnet option, so it has no onboard position sensing.
At 350mm stroke, the protruding rear rod demands clearance for tooling or cam mounting. The twin-rod geometry resists torsional rotation better than a single-rod SE.
Airtac SED Double Rod Cylinder SED50X350 Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED50X350 |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 350 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 SED50X350
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 50 | 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 SED50X350 Is Used
Servo Press Takeoff
Drives a rear-rod cam to time a secondary shear with 825 N of equal both-way force at 0.5 MPa.
Twin-Belt Diverter
Shifts a diverter arm on a packaging line using both rod ends to push and reset identical loads.
Web Edge Guide
Steers a fabric web edge via twin-rod anti-rotation stability, preventing torsional deflection.
Is the Airtac SED Double Rod Cylinder SED50X350 the Right Cylinder?
Select this 50mm bore if your mechanism needs 825 N both ways at 0.5 MPa. Stepping down to the 40mm bore yields 528 N both ways, while the 63mm bore provides 1402 N both ways at 0.5 MPa. Use this double-rod design over a single-rod SE when driving twin loads or needing rear-rod cam actuation.
For direct replacement, match the 50mm bore, 350mm stroke, PT1/4 port, and mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that air loss causes piston drift; use a BSED rod lock for fail-safe holding. At 350mm stroke, add external guide rails to prevent side loads from bending the 20mm rods.
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 SED50X350 FAQ
Because the double-rod design subtracts rod area on both sides, force is equal in both directions: 825 N at 0.5 MPa, 1154 N at 0.7 MPa, and a maximum of 168 kgf at 1.0 MPa.
The twin rods provide superior torsional resistance and anti-rotation guidance for loads. The rear rod can also drive a secondary mechanism or limit flag, which a single-rod SE cannot do.
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