Airtac SED Double Rod Cylinder SED125X10
The AirTAC Airtac SED Double Rod Cylinder SED125X10 is a genuine double-acting ISO 15552 double-rod cylinder: a Ø32mm piston rod exits BOTH ends of the Ø125mm bore, giving equal force and speed in both directions and letting you mount tooling or a sensor flag on the back rod. Stroke 10mm, PT1/2 ports, adjustable cushioning.
- BoreØ125 mm
- Stroke10 mm
- Port sizePT1/2
- ConfigurationDouble rod
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SED Double Rod Cylinder SED125X10
The AirTAC SED125X10 is a double-acting, double-rod profile cylinder built to ISO 15552 dimensional standards. A 32mm rod exits both end covers, yielding identical annulus areas so extend and retract forces match exactly at 5734 N each way at 0.5 MPa.
This short 10mm stroke unit features a PT1/2 port, M27x2 rod thread, and field-adjustable air cushioning at both ends. The extruded aluminum barrel includes sensor grooves, though this specific SKU lacks the -S magnet for CMSE or DMSE position detection.
Airtac SED Double Rod Cylinder SED125X10 Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED125X10 |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 10 mm |
| Configuration | Double rod, double acting |
| Port size | PT1/2 |
| Rod thread | M27×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 40 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 (Ø125mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 5734 N |
| 0.7 MPa | 8027 N |
| Max (@1.0 MPa) | 1169 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 SED125X10
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×10 | 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 SED125X10 Is Used
Heavy Press Ejection
Drives a short-stroke knockout pin in a 125-ton metal stamping press, using its 5734 N both-way force to reliably eject thick plate parts.
Servo Brake Actuator
Actuates high-torque clamping brakes on a CNC lathe turret, leveraging the twin rods to prevent wobble during sudden 30-500 mm/s stops.
Dual-Side Mold Clamping
Synchronizes a short-stroke compression mold from both ends, ensuring perfectly parallel resin flow with equal 5734 N extension and retraction.
Is the Airtac SED Double Rod Cylinder SED125X10 the Right Cylinder?
Choose this 125mm bore when your application demands the maximum standard SED thrust of 5734 N both ways at 0.5 MPa, or 8028 N at 0.7 MPa. If you need less force, stepping down to the 100mm bore provides 3681 N both ways at 0.5 MPa. As the largest standard bore, there is no larger SED option available. The twin rods provide superior anti-rotation guidance and allow driving a secondary mechanism from the rear rod. Note that a plain SED does not hold position on air loss; for fail-safe holding, consider an AirTAC BSED double-rod rod lock or an external pilot-operated check valve. For ISO 15552 replacement matching, verify the 125mm bore, 10mm stroke, PT1/2 port, and required mounting from the available Basic, FA, LB, TC, FTC, TCM1, or TCM2 styles.
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 SED125X10 FAQ
Because the double-rod design creates equal effective piston areas on both sides, the SED125X10 delivers 5734 N of force at 0.5 MPa and 8028 N at 0.7 MPa in both extend and retract directions. The maximum force is 1169 kgf at 1.0 MPa.
A double-rod cylinder provides equal force and speed in both directions, and the rear rod offers superior anti-rotation guidance for heavy loads. It also allows mounting a rear cam or secondary mechanism. The SED125X10 is dimensionally interchangeable per ISO 15552 but omits FB, CA, CB, and CR mounting styles.
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