Airtac SED Double Rod Cylinder SED100X125S
The AirTAC Airtac SED Double Rod Cylinder SED100X125S is a genuine double-acting ISO 15552 double-rod cylinder: a Ø25mm piston rod exits BOTH ends of the Ø100mm bore, giving equal force and speed in both directions and letting you mount tooling or a sensor flag on the back rod. Stroke 125mm, PT1/2 ports, adjustable cushioning.
- BoreØ100 mm
- Stroke125 mm
- Port sizePT1/2
- ConfigurationDouble rod
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SED Double Rod Cylinder SED100X125S
The AirTAC SED100X125S is a double-acting, double-rod profile cylinder built to ISO 15552 dimensional standards. Because a 25 mm rod exits both end covers, the effective piston area is identical on extend and retract. This yields exactly 3681 N of force each way at 0.5 MPa, providing perfectly balanced thrust for demanding motion control.
Equipped with a -S magnet, this unit supports CMSE reed and DMSE electronic sensors for end-of-stroke detection. The extruded aluminum barrel contains no external tie rods, and field-adjustable air cushions at both ends absorb kinetic energy near stroke limits. The rear rod extension can drive a secondary mechanism or mount a cam.
Airtac SED Double Rod Cylinder SED100X125S Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED100X125S |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø100 mm |
| Stroke | 125 mm |
| Configuration | Double rod, double acting |
| Port size | PT1/2 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max stroke | Up to 1500 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 (Ø100mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 3682 N |
| 0.7 MPa | 5154 N |
| Max (@1.0 MPa) | 751 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 SED100X125S
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 100 | Bore size in mm. |
| ×125 | 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 SED100X125S Is Used
Servo Press Platen
Drives a machining platen requiring 3681 N of perfectly balanced force both directions, utilizing the twin rods to prevent torsional deflection during heavy cutting cycles.
Pallet Transfer Gate
Actuates a heavy-duty conveyor diverting gate. The rear rod end mounts a physical cam to trigger mechanical switches, while the front rod pushes 751 kgf max loads smoothly.
Injection Mold Ejector
Ejects molded parts symmetrically from a press. The equal extend and retract speeds keep the ejection cycle stable, while DMSE electronic sensors track position precisely.
Is the Airtac SED Double Rod Cylinder SED100X125S the Right Cylinder?
Choose this 100 mm bore when an application requires 3681 N of bidirectional force at 0.5 MPa. If your load is lighter, the 80 mm bore provides 2268 N both ways. If you need more thrust, stepping up to the 125 mm bore yields 5734 N. The twin-rod design inherently resists torsion and side loads better than a single-rod SE cylinder, making it ideal for guided lifting. Note that a plain SED does not hold position on air loss; for fail-safe locking, select a BSED or use an external rod lock. To replace an existing ISO 15552 unit, match the 125 mm stroke, PT1/2 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 SED100X125S FAQ
Because the double-rod design has the same annulus area on both sides, force is equal in both directions. It provides 3681 N at 0.5 MPa, 5153 N at 0.7 MPa, and a maximum of 751 kgf at 1.0 MPa.
The twin rods provide equal force and speed in both directions, offer superior anti-rotation resistance for guided loads, and allow tooling or sensors to be mounted on the rear rod end. It is dimensionally interchangeable with other ISO 15552 double-rod profile cylinders.
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