The AirTAC Airtac SED Double Rod Cylinder SED32X550 is a genuine double-acting ISO 15552 double-rod cylinder: a Ø12mm piston rod exits BOTH ends of the Ø32mm bore, giving equal force and speed in both directions and letting you mount tooling or a sensor flag on the back rod. Stroke 550mm, PT1/8 ports, adjustable cushioning.
The AirTAC SED32X550 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 32mm bore and 550mm stroke. Because a rod exits both end covers, the annulus area is identical on extend and retract, yielding equal force and speed in both directions. This configuration provides 345N of thrust each way at 0.5 MPa.
This unit features an extruded aluminum barrel without external tie-rods, adjustable air cushions at both ends, and a PT1/8 port. Lacking the -S magnet option, this SKU does not support internal CMSE or DMSE position sensing. The rear rod protrusion is excellent for mounting a secondary cam or driving a secondary mechanism, but you must leave adequate rear clearance for the 550mm stroke.
| Model | Airtac SED Double Rod Cylinder SED32X550 |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø32 mm |
| Stroke | 550 mm |
| Configuration | Double rod, double acting |
| Port size | PT1/8 |
| Rod thread | M10×1.25 |
| 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, 27 mm |
| Max stroke | Up to 1000 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 | 346 N |
| 0.7 MPa | 484 N |
| Max (@1.0 MPa) | 70 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. |
|---|---|
| 32 | Bore size in mm. |
| ×550 | 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 345N both-way cutting carriage across a 550mm wire spool, using the rear rod to trigger an external mechanical limit flag.
Moves light electronic components with equal extend and retract forces, preventing sag on a 550mm horizontal transfer path.
Actuates a sorting flap on a packaging conveyor, utilizing the double rod's anti-rotation properties to maintain gate alignment.
Select this 32mm bore when you need compact equal-force both-way motion delivering 345N at 0.5 MPa. If your load requires less force, no smaller SED bore exists in the ISO 15552 range. If you need more power, stepping up to the 40mm bore provides 528N at 0.5 MPa. Choose this double-rod SED over a single-rod SE when your application demands anti-rotation stability, dual-side guidance, or a rear rod for external tooling.
For a drop-in ISO 15552 replacement, match the 32mm bore, 550mm stroke, PT1/8 port, and your required mounting (Basic, FA, LB, TC, FTC, TCM1, or TCM2). Note that a plain SED does not hold position on air loss; the piston drifts, and the adjustable cushion only decelerates near stroke end. For fail-safe holding, consider a BSED double-rod rod lock. At 550mm stroke, the 12mm rod is susceptible to side-loading; ensure external load guidance to prevent binding.
Quick checklist
Because the double rod occupies both sides of the piston, force is equal in both directions. It delivers 345N at 0.5 MPa, 483N at 0.7 MPa, and a maximum of 70 kgf at 1.0 MPa.
Yes, it is dimensionally interchangeable per ISO 15552. Just match the 32mm bore, 550mm stroke, PT1/8 port, and mounting style. Note that the double-rod design makes the overall length longer than a single-rod cylinder, so rear clearance is required.
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