Airtac SED Double Rod Cylinder SED50X70S
The AirTAC SED Double Rod Cylinder SED50X70S 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 SED50X70S
The AirTAC SED50X70S is a double-acting, double-rod profile cylinder built to ISO 15552 dimensions. A 20mm rod extends from both end covers, yielding identical annulus areas. Consequently, drive force is perfectly symmetrical, providing 825 N in both directions at 0.5 MPa.
Equipped with a standard magnet (-S), this 50mm bore unit supports CMSE reed and DMSE electronic sensors for tracking both extremes of its 70mm travel. The extruded aluminum barrel omits external tie rods, while adjustable air cushions at both ends manage deceleration near stroke limits.
Airtac SED Double Rod Cylinder SED50X70S Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED50X70S |
|---|---|
| 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 SED50X70S
| 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 SED50X70S Is Used
PCB Edge Guiding
Provides 825 N of equal force to align circuit boards on a conveyor without rotational deflection, using the rear rod to trigger a DMSE sensor flag.
Dual-Side Labeling
Drives opposing label applicators simultaneously, ensuring perfectly synchronized product handling across the 70mm stroke.
Light Press Assembly
Applies symmetrical 1154 N clamping force at 0.7 MPa for seating small bearings, where the twin rods resist twisting under offset loads.
Is the Airtac SED Double Rod Cylinder SED50X70S the Right Cylinder?
Choose this 50mm bore when an application demands 825 N of bidirectional force at 0.5 MPa. If your load requires less thrust, stepping down to the 40mm bore provides 528 N both ways. Conversely, scaling up to the 63mm bore yields 1402 N. The twin-rod design excels over a single-rod SE by preventing rod rotation and allowing a rear-mounted cam or limit flag.
For position holding upon air loss, note that a standard SED will drift; an external pilot-operated check valve or a BSED rod-lock variant is required for fail-safe clamping. To replace an existing ISO 15552 unit, match the 50mm bore, 70mm stroke, PT1/4 port, and preferred 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 SED50X70S FAQ
Because the double-rod design creates 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.
The twin-rod configuration prevents mechanical rotation of the load, allows tooling or sensors to be mounted on the rear rod end, and guarantees perfectly matched extend and retract speeds. It is dimensionally interchangeable with other ISO 15552 profile cylinders.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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