
The AirTAC SED Double Rod Cylinder SED50X800S 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 800mm, PT1/4 ports, adjustable cushioning.
The AirTAC SED50X800S is a double-acting, double-rod profile cylinder built to ISO 15552 dimensional standards. Because a 20mm rod exits both end covers, the annulus area is identical on both sides, yielding exactly 825 N of output force at 0.5 MPa in both extend and retract directions.
Equipped with a standard magnet (-S), this unit drives CMSE reed or DMSE electronic sensors. The extruded aluminum barrel omits external tie rods, and the adjustable air cushions at both ends tame the kinetic energy of this long 800mm stroke.
| Model | Airtac SED Double Rod Cylinder SED50X800S |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 800 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. |
| ×800 | 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 825 N both-way correction carriage for film or foil webs, using the rear rod end to mount a tensioner cam.
Pushes 800mm stroke pallets off a line, utilizing the twin rods to prevent rotational twisting under offset loads.
Synchronizes a 50mm bore transfer arm between two machining stations, providing equal 825 N force in both travel directions.
Select this 50mm bore when you need 825 N both-way force at 0.5 MPa; step down to the 40mm bore for 528 N, or up to the 63mm bore for 1402 N. The twin-rod design provides superior anti-rotation stability and allows mounting a rear cam or secondary tool. At 800mm, side loads are severe—use external guide rails to prevent rod binding. For direct replacements, match the 50mm bore, 800mm stroke, PT1/4 port, and mounting. Note: air cushions decelerate near stroke end but do not hold position on air loss; use an external pilot check valve for fail-safe holding.
Quick checklist
Because the double-rod design has equal piston area on both sides, output force is identical in both directions: 825 N at 0.5 MPa, 1154 N at 0.7 MPa, and a maximum of 168 kgf at 1.0 MPa.
The twin rods provide equal force and speed in both directions, improve load stability against rotation, and allow the rear rod end to drive a secondary mechanism or sensor flag. It uses a standard PT1/4 port and M16x1.5 rod thread.
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