Airtac SED Double Rod Cylinder SED63X25
The AirTAC SED Double Rod Cylinder SED63X25 is a genuine double-acting ISO 15552 double-rod cylinder: a Ø20mm piston rod exits BOTH ends of the Ø63mm bore, giving equal force and speed in both directions and letting you mount tooling or a sensor flag on the back rod. Stroke 25mm, PT3/8 ports, adjustable cushioning.
- BoreØ63 mm
- Stroke25 mm
- Port sizePT3/8
- ConfigurationDouble rod
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SED Double Rod Cylinder SED63X25
The AirTAC SED63X25 is a double-acting, double-rod ISO 15552 profile cylinder with a 63 mm bore and 25 mm stroke. A piston rod exits both end covers, yielding identical annulus areas on both sides. This means the cylinder generates exactly 1402 N of thrust in both directions at 0.5 MPa, eliminating the push-pull force disparity found in single-rod units.
This unit features a 20 mm carbon steel rod with an M16x1.5 thread, a PT3/8 port, and field-adjustable air cushions at both ends. The rear rod extension is perfect for mounting a cam or driving a secondary mechanism. This specific SKU lacks a magnet, so it will not trigger CMSE or DMSE position sensors without modification.
Airtac SED Double Rod Cylinder SED63X25 Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED63X25 |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø63 mm |
| Stroke | 25 mm |
| Configuration | Double rod, double acting |
| Port size | PT3/8 |
| Rod thread | M16×1.5 |
| 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 (Ø63mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 1402 N |
| 0.7 MPa | 1962 N |
| Max (@1.0 MPa) | 286 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 SED63X25
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 63 | Bore size in mm. |
| ×25 | 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 SED63X25 Is Used
Multi-Station Stamping Press
Drives a 25 mm stamping head with 1402 N of equal both-way force, using the rear rod to simultaneously trip a mechanical ejector cam.
Pneumatic Diverter Gate
Shifts a heavy sorting flap with balanced 1962 N at 0.7 MPa, leveraging the twin rods to prevent the gate from twisting under off-center loads.
Synchronized Pick-and-Place
Powers a short-travel vertical gripper where the rear rod end mounts a physical limit flag, ensuring precise 25 mm pick positioning.
Is the Airtac SED Double Rod Cylinder SED63X25 the Right Cylinder?
Select the SED63X25 when your mechanism requires equal force on extend and retract within a very short stroke. At 0.5 MPa, it provides 1402 N both ways. If you need less force, step down to the 50 mm bore (825 N); if you need more, step up to the 80 mm bore (2268 N). Unlike a single-rod SE cylinder, this double-rod design uses the rear protruding shaft to drive a secondary mechanism or mount a sensor flag, while offering superior load guidance against rotation.
Because the stroke is only 25 mm, side loading is minimal, but always ensure external guides support the load. Note that a plain SED does not hold position on air loss; the piston drifts. The adjustable cushion only decelerates the load near the stroke end. For fail-safe holding, use a BSED double-rod rod lock. This profile cylinder is dimensionally interchangeable per ISO 15552 mounting interfaces.
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 SED63X25 FAQ
The SED63X25 generates equal force in both directions because the rod occupies both sides of the piston. It outputs 1402 N at 0.5 MPa, 1962 N at 0.7 MPa, and reaches a maximum of 286 kgf at 1.0 MPa.
The twin rods provide identical extend and retract forces, which is critical for balanced machine timing. The rear rod also allows you to mount a cam or sensor flag and offers better anti-rotation resistance than a single-rod profile cylinder.
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