Airtac SED Double Rod Cylinder SED125X1000
The AirTAC Airtac SED Double Rod Cylinder SED125X1000 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 1000mm, PT1/2 ports, adjustable cushioning.
- BoreØ125 mm
- Stroke1000 mm
- Port sizePT1/2
- ConfigurationDouble rod
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SED Double Rod Cylinder SED125X1000
The AirTAC SED125X1000 is a double-acting, double-rod ISO 15552 profile cylinder engineered for heavy-duty symmetry. A Ø32 mm rod exits both end covers, yielding identical annulus areas so the cylinder outputs 5734 N each way at 0.5 MPa. The extruded aluminum barrel omits external tie rods, providing a clean VDMA 24562 mounting interface.
This 1000 mm stroke variant lacks the standard magnet option, meaning no CMSE or DMSE position sensing is equipped on this SKU. Field-adjustable air cushions at both ends safely decelerate the heavy 125 mm piston over a 40 mm cushion length, while the rear rod end can mount a cam or tooling flag to trigger external limits.
Airtac SED Double Rod Cylinder SED125X1000 Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED125X1000 |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 1000 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 SED125X1000
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×1000 | 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 SED125X1000 Is Used
Heavy Press Ejection
Ejecting large stamped metal panels from a 1000-ton press. The 5734 N both-way force securely pushes the heavy part out, while the rear rod simultaneously cycles a mechanical flag to confirm ejection.
Pallet Transfer Indexer
Indexing loaded 1-ton pallets along a heavy-duty roller conveyor. The twin-rod design prevents the heavy load from twisting during the 1000 mm traverse, maintaining precise tracking.
Dual-Side Panel Straightener
Applying equal clamping pressure from both directions to flatten thick steel plates. The identical annulus areas ensure perfectly balanced 5734 N force on both sides simultaneously.
Is the Airtac SED Double Rod Cylinder SED125X1000 the Right Cylinder?
Selecting this 125 mm bore provides a massive 5734 N both-way force at 0.5 MPa (8028 N at 0.7 MPa, max 1169 kgf at 1.0 MPa). If your application requires less force, stepping down to the 100 mm bore yields 3681 N each way at 0.5 MPa; as the largest standard size, there is no larger bore to step up to. Choose this double-rod SED over a single-rod SE when you need superior load guidance against rotation or must drive two mechanisms simultaneously from one cylinder.
At 1000 mm of stroke, side loads amplify guide wear, so external linear bearings are strongly recommended to prevent rod binding. Remember that a plain SED does not hold position on air loss—the piston drifts, and the adjustable air cushion only decelerates near stroke end, acting as a brake. For fail-safe holding, specify a BSED double-rod rod lock or an external pilot-operated check valve. Ensure your ISO 15552 replacement matches the PT1/2 port, M27x2 rod thread, and Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting set.
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 SED125X1000 FAQ
Because a rod exits both ends, the effective area is identical in both directions. The SED125X1000 outputs 5734 N at 0.5 MPa, 8028 N at 0.7 MPa, and a maximum of 1169 kgf at 1.0 MPa in both extend and retract strokes.
Yes. The SED125X1000 is a dimensionally interchangeable ISO 15552 profile cylinder. Just verify your mounting style (Basic, FA, LB, TC, FTC, TCM1, or TCM2—this series omits FB/CA/CB/CR), the PT1/2 port, and the M27x2 rod thread. Note that the overall length is longer than a single-rod cylinder to accommodate the rear rod.
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