
The AirTAC SED Double Rod Cylinder SED50X45 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 45mm, PT1/4 ports, adjustable cushioning.
The AirTAC SED50X45 is a double-acting, double-rod profile cylinder built to ISO 15552 dimensional standards. Because a rod exits both ends, the annulus area is identical on extend and retract. This gives you exactly 825 N of output force each way at 0.5 MPa. The extruded aluminum barrel has no external tie rods, ensuring a clean profile.
This 50mm bore, 45mm stroke unit uses a PT1/4 port and a 20mm rod with an M16x1.5 thread. It features field-adjustable air cushioning at both ends to decelerate the load near stroke end. Note that this specific SKU lacks a piston magnet, so it cannot host CMSE or DMSE position sensors without modification.
| Model | Airtac SED Double Rod Cylinder SED50X45 |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 45 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).
| 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.
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 50 | Bore size in mm. |
| ×45 | 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 dual-edge blade carriage with 825 N of equal force both ways, ensuring smooth cutting and rapid retraction without rotational drift.
Uses the rear rod end to mirror a secondary jaw movement, providing perfectly synchronized part transfer using the 45mm stroke.
Steers a thin film roller in packaging lines, relying on the twin 20mm rods for high torsional rigidity against web tension.
Select this 50mm bore when you need 825 N of equal bidirectional force at 0.5 MPa. If your payload is lighter, step down to the 40mm bore for 528 N; if heavier, step up to the 63mm bore for 1402 N. The twin rods provide superior anti-rotation resistance and allow mounting a rear cam or secondary tool. A plain SED does not hold position on air loss—the piston drifts. For fail-safe holding, use a BSED double-rod rod lock or an external pilot check valve. At 45mm stroke, side loading is minimal, but always align the load with the 20mm rod to prevent premature seal wear. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Quick checklist
Because it is a double-rod cylinder, the force is identical in both directions. It provides 825 N at 0.5 MPa, 1154 N at 0.7 MPa, and a maximum of 168 kgf at 1.0 MPa.
Yes. The SED50X45 is an ISO 15552 profile cylinder, making it dimensionally interchangeable with other ISO 15552 double-rod cylinders. Just match the PT1/4 port and your chosen mounting style.
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