Airtac SED Double Rod Cylinder SED100X425S
The AirTAC Airtac SED Double Rod Cylinder SED100X425S 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 425mm, PT1/2 ports, adjustable cushioning.
- BoreØ100 mm
- Stroke425 mm
- Port sizePT1/2
- ConfigurationDouble rod
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SED Double Rod Cylinder SED100X425S
The AirTAC SED100X425S 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 delivers exactly 3681 N of force each way at 0.5 MPa, eliminating speed and force mismatch between directions.
Equipped with a standard magnet (-S), this 100 mm bore unit supports CMSE reed and DMSE electronic sensors for end-of-stroke detection. The extruded aluminum barrel omits external tie rods, while field-adjustable air cushions at both ends absorb kinetic energy near the stroke limits.
Airtac SED Double Rod Cylinder SED100X425S Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED100X425S |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø100 mm |
| Stroke | 425 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 SED100X425S
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 100 | Bore size in mm. |
| ×425 | 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 SED100X425S Is Used
Servo Press Platen
Drives a stamping platen requiring 5153 N of equal force on the downstroke and upstroke, using the rear rod to mount a mechanical cam for secondary operations.
Pallet Transfer Gate
Actuates a heavy diverter gate on a packaging line, relying on the twin rods to resist torsional twisting and maintain precise 425 mm travel alignment.
Textile Calender Roll
Balances a 100 mm calender nip roll with 3681 N of constant pressure both ways, preventing fabric skew during high-speed retraction.
Is the Airtac SED Double Rod Cylinder SED100X425S the Right Cylinder?
Select this 100 mm bore when your application requires 3681 N of bidirectional force at 0.5 MPa (or 5153 N at 0.7 MPa). If your load requires less thrust, the 80 mm bore provides 2268 N both ways. For heavier drives, the 125 mm bore offers 5734 N. At 425 mm of stroke, the protruding rear rod demands strict external guide alignment to prevent side-load wear on the seals.
A double-rod design suits applications needing anti-rotation stability or rear-rod tooling. Note that a standard SED does not hold position on air loss; the piston drifts. For fail-safe holding, use a BSED double-rod rod lock or external pilot check valve. Drop-in replacement requires matching the PT1/2 port, M20x1.5 rod thread, and ISO 15552 mounting (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 SED100X425S FAQ
Because the double-rod design has equal piston area on both sides, output force is identical in both directions: 3681 N at 0.5 MPa, 5153 N at 0.7 MPa, and a maximum of 751 kgf at 1.0 MPa.
The twin-rod design provides equal extend and retract forces, superior anti-rotation resistance, and a rear rod end for mounting sensors or cams. It uses the same ISO 15552 mounting footprint as a single-rod SE but requires clearance for the rear rod.
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