
The AirTAC Airtac SED Double Rod Cylinder SED40X75S 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 75mm, PT1/4 ports, adjustable cushioning.
The AirTAC SED40X75S is a double-acting, double-rod profile cylinder built to ISO 15552 dimensions. A 16mm rod extends from both end covers, yielding identical annulus areas. This means you get exactly 528 N of output force at 0.5 MPa on both extend and retract strokes.
Fitted with a standard magnet (-S), it supports CMSE reed and DMSE electronic sensors for end-of-stroke detection. The extruded aluminum barrel omits external tie rods, and adjustable air cushions at both ends absorb kinetic energy near the 75mm stroke limits.
| Model | Airtac SED Double Rod Cylinder SED40X75S |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 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. |
| ×75 | 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).
Drives a clamping jaw with 528 N of equal force both ways, ensuring delicate circuit boards stay perfectly aligned during the deburring cycle.
Uses the rear rod end to trigger a DMSE electronic sensor, confirming part handoff while the front rod pushes components between machining stages.
Leverages twin rods to prevent gripper rotation during horizontal transfers, maintaining precise vertical alignment over the 75mm travel.
Select this 40mm bore when you need 528 N of equal bidirectional force at 0.5 MPa. If your payload is lighter, step down to the 32mm bore for 345 N; for heavier loads, step up to the 50mm bore providing 825 N. The twin-rod design inherently resists torsion and guides loads against rotation better than a single-rod SE cylinder.
To replace an existing ISO 15552 unit, match the 75mm stroke, PT1/4 port, and mounting style (Basic, FA, LB, TC, FTC, TCM1, or TCM2). Note that a plain SED does not hold position on air loss—the piston drifts. For fail-safe holding, use a BSED rod lock or external check valve. Remember to leave rear-rod clearance, as the rod protrudes from the back cover.
Quick checklist
Because the double-rod design creates equal piston areas on both sides, output force is identical in both directions: 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 for external loads and allow the rear rod end to drive a secondary mechanism or sensor flag. It is dimensionally interchangeable per ISO 15552, but requires rear-rod clearance and omits FB, CA, CB, and CR mounts.
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