Airtac SED Double Rod Cylinder SED50X900S
The AirTAC SED Double Rod Cylinder SED50X900S 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 900mm, PT1/4 ports, adjustable cushioning.
- BoreØ50 mm
- Stroke900 mm
- Port sizePT1/4
- ConfigurationDouble rod
- Rod threadM16×1.5
- CushionAdjustable, 30 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SED Double Rod Cylinder SED50X900S
The AirTAC SED50X900S is a double-acting, double-rod profile cylinder built to ISO 15552 dimensional standards. A 20mm rod extends from both end covers, yielding an identical annulus area on both sides of the piston. This means you get exactly 825 N of output force at 0.5 MPa in both extend and retract directions.
Equipped with a standard magnet (-S), this unit supports CMSE reed and DMSE electronic sensors for end-of-stroke detection. The extruded aluminum barrel omits external tie rods, and the field-adjustable air cushions at both ends allow you to fine-tune deceleration over the 900mm travel.
Airtac SED Double Rod Cylinder SED50X900S Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED50X900S |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 900 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).
Theoretical Output Force (Ø50mm)
| 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.
Model Code: Airtac SED Double Rod Cylinder SED50X900S
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 50 | Bore size in mm. |
| ×900 | 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).
Where the Airtac SED Double Rod Cylinder SED50X900S Is Used
Web Guiding Mechanisms
Drives opposing guide rollers on film or foil lines. The twin rods prevent torsional twist over the 900mm span, while the equal 825 N force ensures consistent tensioning both ways.
Dual-Side Pallet Pusher
Pushes pallets from a main conveyor to a labeling station. The rear rod end mounts a DMSE electronic sensor flag, providing a physical confirmation signal independent of the primary tooling.
Glass Panel Lifting Jaws
Actuates synchronized gripper jaws for vertical glass lifts. The symmetrical 1154 N force at 0.7 MPa guarantees both jaws clamp with identical pressure without requiring flow controls.
Is the Airtac SED Double Rod Cylinder SED50X900S the Right Cylinder?
Choose this 50mm bore when you need 825 N of equal both-way force at 0.5 MPa. If your payload is lighter, step down to the 40mm bore for 528 N; if you need more push, step up to the 63mm bore for 1402 N. The twin-rod design provides superior anti-rotation stability and allows mounting a rear cam or sensor flag, which a single-rod SE cannot do.
Because the 900mm stroke is long, external guide rails are recommended to prevent side-loading damage to the rod seals. Note that the adjustable cushion only decelerates the load near stroke end; it will not hold position on air loss. For fail-safe holding, use an external pilot-operated check valve or a BSED rod-lock cylinder. To replace an ISO 15552 unit, match the 50mm bore, 900mm stroke, PT1/4 port, and mounting style (Basic, FA, LB, TC, FTC, TCM1, or TCM2).
Quick checklist
- ✓ Equal force/speed both directions needed?
- ✓ Back-rod space for tooling or a flag
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/G)
- ✓ Magnet (-S) for CMSE/DMSE sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Support both rod ends; avoid side load.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (LB/FA/TC/FTC/TCM1/TCM2).
- check Installation by qualified personnel per AirTAC docs.
Airtac SED Double Rod Cylinder SED50X900S FAQ
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 better load guidance and resist rotation better than a single rod. It also allows you to mount tooling, cams, or sensor flags on the rear rod end, which is impossible on a standard single-rod cylinder.
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