Airtac SED Double Rod Cylinder SED100X125
The AirTAC Airtac SED Double Rod Cylinder SED100X125 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 SED100X125
The AirTAC SED100X125 is a double-acting, double-rod ISO 15552 profile cylinder. A single piston drives a 25mm rod out of both end covers. Because a rod occupies both sides, the annulus area is identical on extend and retract. This yields equal force both ways: 3681N at 0.5MPa and 5153N at 0.7MPa. The extruded aluminum barrel has no external tie rods, ensuring clean integration.
This unit features field-adjustable air cushioning at both ends (36mm stroke) to tame end-of-stroke impacts. It carries no standard magnet on this SKU, so position sensing requires an external flag. The twin rods provide dual-side guidance, resisting torsional twist under heavy loads. Ports are PT1/2, and the rod-end thread is M20x1.5.
Airtac SED Double Rod Cylinder SED100X125 Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED100X125 |
|---|---|
| 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 SED100X125
| 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 SED100X125 Is Used
Servo Press Transfer
Drives heavy stamping transfer arms with 5153N at 0.7MPa, using the rear rod to trip a limit cam for stroke confirmation.
Pallet Diverters
Pushes 751kgf max loads laterally across roller conveyors; twin rods prevent binding during rapid 30-800mm/s cycles.
Textile Calendering
Guides calender rolls symmetrically, applying equal 3681N tension both ways to maintain fabric tracking without skew.
Is the Airtac SED Double Rod Cylinder SED100X125 the Right Cylinder?
Select the 100mm bore when your application demands high bilateral force. The 80mm neighbor yields 2268N at 0.5MPa, while the 125mm step up provides 5734N. Choose this double-rod SED over a single-rod SE when you need to mount a cam or tooling on the rear rod, or when the load requires superior anti-rotation guidance. It operates at 30-800mm/s.
For ISO 15552 replacement matching, verify the 125mm stroke, PT1/2 port, and mounting choice (Basic, FA, LB, TC, FTC, TCM1, or TCM2—omitting FB/CA/CB/CR). Note that a plain SED does not hold position on air loss; the piston drifts. For fail-safe hold, specify a BSED double-rod rod lock or an external pilot-operated check valve.
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 SED100X125 FAQ
Because the double-rod design subtracts the 25mm rod area from both sides, force is equal in both directions: 3681N at 0.5MPa, 5153N at 0.7MPa, and a maximum of 751kgf at 1.0MPa.
The twin rods prevent torsional rotation better than a single rod, and the rear protruding rod can drive a secondary mechanism or sensor flag. It is dimensionally interchangeable per ISO 15552, but note the longer overall length requires rear-rod clearance.
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