Airtac SED Double Rod Cylinder SED80X650S
The AirTAC Airtac SED Double Rod Cylinder SED80X650S is a genuine double-acting ISO 15552 double-rod cylinder: a Ø25mm piston rod exits BOTH ends of the Ø80mm bore, giving equal force and speed in both directions and letting you mount tooling or a sensor flag on the back rod. Stroke 650mm, PT3/8 ports, adjustable cushioning.
- BoreØ80 mm
- Stroke650 mm
- Port sizePT3/8
- ConfigurationDouble rod
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SED Double Rod Cylinder SED80X650S
The AirTAC SED80X650S is a double-acting, double-rod profile cylinder built to the ISO 15552 interface. Because a 25 mm rod exits both ends, the annular piston area is identical on extend and retract, yielding an equal 2268 N of force in both directions at 0.5 MPa. The extruded aluminum barrel lacks external tie rods and carries field-adjustable air cushions at both ends to decelerate the load near stroke limits.
Fitted with the -S magnet option, this unit supports CMSE reed and DMSE electronic sensors for end-of-stroke detection. The rear rod extension is ideal for mounting a cam or driving a secondary mechanism, while the twin-rod geometry provides superior anti-rotation guidance compared to a single-rod SE cylinder.
Airtac SED Double Rod Cylinder SED80X650S Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED80X650S |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø80 mm |
| Stroke | 650 mm |
| Configuration | Double rod, double acting |
| Port size | PT3/8 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max stroke | Up to 1500 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 (Ø80mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 2268 N |
| 0.7 MPa | 3175 N |
| Max (@1.0 MPa) | 463 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 SED80X650S
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 80 | 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 SED80X650S Is Used
Slitter Rewinder Web Guide
Drives an oscillating web guide on a film slitter rewinder, using the 2268 N both-way force to maintain equal tension and tracking while preventing chassis rotation.
Dual-Side Shuttle Transfer
Powers a dual-side shuttle in a packaging line, utilizing the through-rod to mount a rear cam for a secondary mechanism while moving 650 mm at 30-800 mm/s.
Glass Lifting Frame Actuator
Actuates a lifting frame in a glass handling line, where the twin rods resist heavy side loads and the rear rod carries a position flag for DMSE sensors.
Is the Airtac SED Double Rod Cylinder SED80X650S the Right Cylinder?
Stepping up from the 63 mm bore (1402 N both ways at 0.5 MPa) to this 80 mm unit provides 2268 N both ways at 0.5 MPa, peaking at 463 kgf at 1.0 MPa. If your application requires less force, the 63 mm bore is the nearest downsize; if you need more thrust, the 100 mm bore offers 3681 N both ways at 0.5 MPa. Choose this double-rod over a single-rod SE when you need equal push/pull dynamics, rear-rod tooling, or high resistance to side-load induced rotation.
At a 650 mm stroke, the extended rod length demands careful alignment and external guide rails to prevent binding and premature seal wear. Remember that a standard SED does not hold position on air loss—the piston drifts, and the adjustable cushion only decelerates near stroke end, acting as a brake. For fail-safe holding, select a BSED double-rod rod lock or an external pilot-operated check valve. Replacement requires matching the 80 mm bore, 650 mm stroke, PT3/8 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 SED80X650S FAQ
Because the 25 mm rod occupies both sides of the piston, force is equal in both directions: 2268 N at 0.5 MPa, 3175 N at 0.7 MPa, and a maximum of 463 kgf at 1.0 MPa.
The twin-rod design provides identical push and pull forces, resists rotational torque under load, and offers a rear rod extension for mounting secondary cams or sensors. It is dimensionally interchangeable with other ISO 15552 double-rod profile cylinders.
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