
The AirTAC Airtac SED Double Rod Cylinder SED40X700S is a genuine double-acting ISO 15552 double-rod cylinder: a Ø16mm piston rod exits BOTH ends of the Ø40mm bore, giving equal force and speed in both directions and letting you mount tooling or a sensor flag on the back rod. Stroke 700mm, PT1/4 ports, adjustable cushioning.
The AirTAC SED40X700S is a double-acting, double-rod profile cylinder conforming to the ISO 15552 interface. Because a 16 mm rod exits both ends, the annular piston area is symmetrical, generating an equal 528 N of thrust in both directions at 0.5 MPa. The extruded aluminum barrel omits external tie rods, and adjustable air cushioning at both ends decelerates the load near stroke end.
Equipped with a standard -S magnet, this unit supports CMSE reed and DMSE electronic sensors for end-of-stroke detection. The rear rod protrusion allows you to mount a cam or secondary flag, driving an independent mechanism while guiding the load against rotation.
| Model | Airtac SED Double Rod Cylinder SED40X700S |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 700 mm |
| Configuration | Double rod, double acting |
| Port size | PT1/4 |
| Rod thread | M12×1.25 |
| 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).
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa | 739 N |
| Max (@1.0 MPa) | 108 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.
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 40 | Bore size in mm. |
| ×700 | 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).
Provides 528 N of equal bidirectional force to steer and tension material webs, using the rear rod to mount a cam for dancer-arm feedback.
Drives long-stroke package transfer arms with 739 N at 0.7 MPa, utilizing the through-rod design to prevent binding over 700 mm of travel.
Actuates splicing blades from both ends simultaneously, ensuring perfectly parallel cuts across wide webs without rotational drift.
For a 700 mm stroke, the SED40X700S delivers 528 N both ways at 0.5 MPa. If your payload is lighter, step down to the 32 mm bore (345 N both ways); if heavier, step up to the 50 mm bore (825 N both ways). At this stroke length, external guide rails are strongly recommended to prevent side-load deflection on the 16 mm rods.
Choose this double-rod layout over a single-rod SE when you need anti-rotation stability or rear-rod tooling. Remember that the air cushion decelerates but does not hold position on air loss; for fail-safe holding, select a BSED rod-lock cylinder. To replace an ISO 15552 unit, match the 40 mm bore, 700 mm stroke, PT1/4 port, and mounting style (Basic, FA, LB, TC, FTC, TCM1, or TCM2).
Quick checklist
The SED40X700S delivers equal force in both directions due to its double-rod design: 528 N at 0.5 MPa, 739 N at 0.7 MPa, and a maximum of 108 kgf at 1.0 MPa.
The twin rods provide superior anti-rotation guidance and allow the rear rod to drive a secondary mechanism or sensor flag. It drops into any standard ISO 15552 mounting footprint using Basic, FA, LB, TC, FTC, TCM1, or TCM2 accessories.
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