Airtac SED Double Rod Cylinder SED50X650
The AirTAC SED Double Rod Cylinder SED50X650 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 650mm, PT1/4 ports, adjustable cushioning.
- BoreØ50 mm
- Stroke650 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 SED50X650
The AirTAC SED50X650 is a double-acting, double-rod profile cylinder dimensionally interchangeable per ISO 15552. Because a 20mm rod exits both end covers, the annular piston area is identical on extend and retract, yielding 825N of thrust in each direction at 0.5MPa. The extruded aluminum barrel lacks external tie rods and includes sensor grooves, though this specific SKU omits the magnet option.
With a 650mm stroke, the unit is significantly longer than a single-rod SE cylinder, requiring rear-rod clearance for the protruding shaft. This rear extension can drive a secondary mechanism or support a cam. Adjustable air cushions at both ends decelerate the load near stroke end, but they do not lock position on air loss.
Airtac SED Double Rod Cylinder SED50X650 Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED50X650 |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 650 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 SED50X650
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 50 | Bore size in mm. |
| ×650 | 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 SED50X650 Is Used
Inline Web Splicing
Drives a dual-side splicing head on packaging lines, using the 825N both-way force to cleanly cut and join material without rotational drift.
CNC Tool Changing
Shuttles tool carriages where the rear rod supports a cam switch, leveraging the 650mm travel for deep magazine access.
Glass Edge Handling
Grips and transfers flat glass sheets, using the twin-rod anti-rotation stability to prevent yaw during 650mm horizontal sweeps.
Is the Airtac SED Double Rod Cylinder SED50X650 the Right Cylinder?
Select this 50mm bore when you need 825N of equal bidirectional force at 0.5MPa. If your load is lighter, the 40mm bore provides 528N both ways; for heavier drives, the 63mm bore offers 1402N. At 650mm, the extended rod length increases the risk of side-loading and buckling—ensure external guides support the load to prevent binding.
Choose this double-rod design over a single-rod SE when your application demands anti-rotation stability or rear-rod tooling. Note that a plain SED drifts upon air loss; for fail-safe holding, use a BSED rod-lock cylinder or an external pilot-operated check valve. To replace an ISO 15552 unit, match the 50mm bore, 650mm stroke, PT1/4 port, and mounting style (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 SED50X650 FAQ
The force is equal in both directions because of the double-rod design. It provides 825N at 0.5MPa, 1154N at 0.7MPa, and a maximum of 168kgf at 1.0MPa.
No, the adjustable air cushions only decelerate the piston near the stroke ends and the cylinder will drift if air pressure is lost. For fail-safe position holding, consider an AirTAC BSED double-rod lock cylinder or an external rod lock.
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1-Year Warranty
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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