Airtac SED Double Rod Cylinder SED50X70
The AirTAC SED Double Rod Cylinder SED50X70 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 70mm, PT1/4 ports, adjustable cushioning.
- BoreØ50 mm
- Stroke70 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 SED50X70
The AirTAC SED50X70 is a double-acting, double-rod profile cylinder built to ISO 15552 dimensional standards. It features a 50mm bore, a 70mm stroke, and a Ø20mm rod exiting both end covers. Because the annulus area is identical on both sides, it generates an equal 825 N of force in both directions at 0.5 MPa.
This through-rod design provides superior anti-rotation guidance and allows the rear rod end to drive a secondary mechanism or cam. It uses a PT1/4 port, has a 30mm adjustable air cushion at both ends, and operates at speeds of 30-800 mm/s. Note that this specific SKU lacks a magnet for position sensing.
Airtac SED Double Rod Cylinder SED50X70 Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED50X70 |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 70 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 SED50X70
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 50 | Bore size in mm. |
| ×70 | 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 SED50X70 Is Used
Web Guiding Mechanism
Drives a paper or film web guide with 825 N both ways, using the twin rods to prevent chassis rotation during high-speed reciprocation.
Dual-Side Transfer Pusher
Pushes packages on a packaging line where the rear rod end simultaneously triggers a mechanical cam flag for timing.
Part Ejection Station
Ejects machined aluminum parts using matched bidirectional force, ensuring stable ejection regardless of extend or retract stroke.
Is the Airtac SED Double Rod Cylinder SED50X70 the Right Cylinder?
Select the 50mm bore when your application requires around 825 N of thrust both ways at 0.5 MPa. If you need less force, the adjacent 40mm bore provides 528 N both ways; if you need more, stepping up to the 63mm bore yields 1402 N at 0.5 MPa. Choose this double-rod SED over a single-rod SE when you need twin-side load guidance, rear-rod tooling, or perfectly symmetrical extend and retract dynamics. Keep in mind a standard SED drifts on air loss—the adjustable cushion only decelerates near stroke end, so use a BSED for fail-safe holding. As a true ISO 15552 cylinder, it drops in for any matching 50mm bore, 70mm stroke, PT1/4 port, and standard mounting interface.
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 SED50X70 FAQ
Because the double-rod design has equal piston areas on both sides, output force is identical 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.
Yes. The SED50X70 is a true ISO 15552 profile cylinder with no external tie rods. It is dimensionally interchangeable with any standard ISO 15552 double-rod cylinder matching its 50mm bore, 70mm stroke, and PT1/4 port interface.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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